The speed of sound depends solely on the elastic properties and density of the medium. So the speed does not change even the event occurs with ten times as loud. So speed will be 321 m/s.
Loudness depends on the source of the sound. It refers to the intensity of the sound. The speed of the sound does not depend on either the intensity or loudness.
The speed of the sound is determined by the compressibility or rigidity of the medium. If the medium is less compressible, faster will be the speed of sound. The sound moves slower in the denser medium. Since the medium here does not change and intensity of the sound does not determine the speed, the speed of the sound will remain the same.
So the speed will be 321 m/s even it is ten times louder.
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a balloon will stick to a wooden wall if the balloon is charged negatively. positively. either positively or negatively. none of the above choices are correct.
A balloon will stick to a wooden wall if the balloon is charged either positively or negatively.
This occurs due to the principle of electrostatic attraction. When the balloon is charged (either positively or negatively), it creates an imbalance of charges between the balloon and the wooden wall. This causes the charges in the wall to rearrange themselves to be opposite the charge of the balloon. As a result, the opposite charges attract, and the balloon sticks to the wall.
Electrostatic attraction is the force of attraction between two electrically charged objects or particles due to their opposite charges. When two objects with opposite charges come near each other, the electric field created by one object induces an opposite charge on the other object.
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If a balloon is charged positively or negatively, it will adhere to a wooden wall.
The electrostatic attraction concept is what causes this to happen. There is an imbalance of charges between the balloon and the wooden wall when the balloon is charged, either positively or negatively. As a result, the charges in the wall are repositioned so that they are in opposition to the charge of the balloon. The balloon attaches to the wall as a result of the attraction between the opposing charges.
The force that draws two electrically charged objects or particles together due to their opposing charges is known as electrostatic attraction. When two items with opposing charges are brought close to one another, the electric field produced by one of the objects causes the other object to acquire the opposing charge.
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in most applications the braking torque of the friction brakes should be?
In most applications, the braking torque of the friction brakes should be adequate enough to bring the vehicle to a complete stop within a reasonable distance.
This is important for safety reasons and to prevent accidents.
The braking torque required depends on several factors, including the weight of the vehicle, the speed at which it is traveling, and the road conditions.
To calculate the required braking torque, one can use the equation:
Braking torque = vehicle weight x deceleration x radius of the brake rotor
Deceleration is the rate at which the vehicle slows down, and the radius of the brake rotor is the distance from the center of the rotor to the point where the brake pads make contact.
Once the required braking torque is calculated, the brake system can be designed accordingly.
This may involve selecting the appropriate brake pad material, ensuring proper brake cooling, and selecting the right brake rotor size and design.
It is important to note that the braking torque should not be excessive, as this can cause premature wear of the brake components and reduce their effectiveness over time.
Additionally, excessive braking torque can lead to wheel lock-up and skidding, which can be dangerous.
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question 34 pts how do ambient sounds differ from sound effects?how are foley sounds different from sound effects?
The differences between ambient sounds, sound effects, and Foley sounds.
Ambient sounds, also known as background sounds or atmospheric sounds, are the continuous, subtle noises that help create a sense of atmosphere or location in a scene. They differ from sound effects in that sound effects are distinct, purposeful sounds added to emphasize specific actions or events in a scene.
Foley sounds, on the other hand, are a type of sound effect created manually by a Foley artist to match and enhance the actions happening on-screen. They are different from regular sound effects because they are typically recorded live in a studio using various objects and materials to create realistic, synchronized sounds for actions such as footsteps, clothing rustles, and object handling.
In summary:
1. Ambient sounds create a sense of atmosphere or location and are continuous and subtle.
2. Sound effects are distinct, purposeful sounds added to emphasize specific actions or events.
3. Foley sounds are a type of sound effect created manually by a Foley artist to match on-screen actions.
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After a person has made a change in their life, relapse is common.
A. True
B. False
Answer:
A true
Explanation:
because it is talking about drugs and alcohol
the geocentric model of the universe that was widely accepted in scientific and religious circles until the 16th century was that of
The geocentric model of the universe that was widely accepted in scientific and religious circles until the 16th century was that of Ptolemy, also known as the Ptolemaic system.
The geocentric model of the universe, widely accepted in scientific and religious circles until the 16th century, was based on the idea that Earth was at the center of the cosmos.
This model, also known as the Ptolemaic system, was developed by the ancient Greek astronomer Claudius Ptolemy in the 2nd century AD. According to this model, all celestial objects, including the Sun, Moon, and stars, revolved around the Earth in circular or epicyclical paths.
The geocentric model was dominant for over a thousand years due to its alignment with religious beliefs and its ability to explain astronomical observations.
However, the 16th-century work of Nicolaus Copernicus and later astronomers led to the acceptance of the heliocentric model, which placed the Sun at the center of the solar system and was a more accurate representation of the cosmos.
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the speed of sound in air is 332 m/s. humans have sensitivity to sound frequencies from 20 hz to 20,000 hz. a. what is the longest sound wavelength we can hear? (5 pts) b. what is the shortest sound wavelength we can hear? (5 pts)
The longest sound wavelength we can hear is 16.6 m while the shortest sound wavelength we can hear is 0.0166 m.
We can use the formula for the speed of sound to find the longest and shortest sound wavelengths humans can hear:
speed of sound = frequency × wavelength
Let's first solve for the longest wavelength (a):
a. Longest wavelength = speed of sound / lowest frequency
Longest wavelength = 332 m/s / 20 Hz
Longest wavelength = 16.6 m
Now, let's solve for the shortest wavelength (b):
b. Shortest wavelength = speed of sound / highest frequency
Shortest wavelength = 332 m/s / 20,000 Hz
Shortest wavelength = 0.0166 m (or 1.66 cm)
So, the longest sound wavelength humans can hear is 16.6 meters and the shortest sound wavelength we can hear is 0.0166 meters (1.66 centimeters).
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Given the following circuit, what is the current flowing in the 150.0
resistor?
A) 23.4
B) 30.4
C) 41.4
D) 52.7
E) 72.4
The current that is flowing in the circuit is 41.4 mA.
What is a parallel circuit?A parallel circuit is an electrical circuit that has multiple branches for the current to flow through. In a parallel circuit, the components are connected in such a way that the voltage across each component is the same, but the current flowing through each component can be different.
We know that;
1/RT = 1/80 + 1/200 + 1/150 + 1/100
1/RT = (0.0125) + (0.005) + (0.0067) + (0.01)
RT = 29.2 ohms
I = V/R
I = 12/29.2
I = 41.4 mA
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a simple generator has a 440-loop square coil 22 cm on a side. how fast must it turn in a 0.55 t field to produce 120-v peak output?
To produce 120 v peak output, the coil must turn 10.24 radians per second in a 0.55 t magnetic field.
The peak voltage (V) produced by a generator can be calculated using the following formula:
V = NABωsin(θ)
where N is the number of loops in the coil, A is the area of each loop, B is the strength of the magnetic field, ω is the angular velocity of the coil, and θ is the angle between the magnetic field and the plane of the coil.
In this case, the coil is a square with a side length of 22 cm, so its area is:
A = (22 cm)² = 484 cm² = 0.0484 m²
The number of loops is given as 440. The strength of the magnetic field is 0.55 T. The peak voltage output is 120 V.
We can rearrange the formula to solve for the angular velocity ω:
ω = V / (NABsin(θ))
We need to find the value of sin(θ). The angle θ is the angle between the magnetic field and the plane of the coil. Since the coil is a square, its plane is perpendicular to any of its sides.
Therefore, if the magnetic field is directed perpendicular to the plane of the coil, θ = 90 degrees and sin(θ) = 1.
Plugging in the values, we get:
ω = (120 V) / (440 × 0.0484 m² × 0.55 T × 1) = 10.24 rad/s
Therefore, the coil must turn at a rate of 10.24 radians per second, to produce a peak voltage output of 120 V in a 0.55 T magnetic field.
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find the magnitude of a uniform electric field (in mv/m) with the same energy density as a 0.23-t magnetic field.
The magnitude of the uniform electric field which has the same energy density as a 0.23 t magnetic field is 86.68 V/m.
To find the magnitude of the uniform electric field with the same energy density as a 0.23 t magnetic field, we can use the equation for energy density:
Energy density (in J/m³) = 0.5 × μ × B²
where μ is the permeability of free space (4π × 10⁻⁷ Tm/A) and B is the magnetic field strength in teslas.
We know the energy density of the magnetic field, so we can rearrange the equation to solve for the electric field strength:
Electric field strength (in V/m) = √(2 * energy density / ε)
where ε is the permittivity of free space (8.85 x 10⁻¹² F/m).
Substituting the values given, we get:
Energy density = 0.5 × μ × B²
= 0.5 × 4π × 10⁻⁷ T*m/A * (0.23 T)²
= 3.325 × 10⁻⁸ J/m³
Electric field strength = √(2 × energy density / ε)
= √(2 × 3.325 × 10⁻⁸ J/m³ / 8.85 × 10⁻¹² F/m)
= 86.68 V/m
Therefore, the magnitude of the uniform electric field with the same energy density as a 0.23 t magnetic field is 86.68 V/m.
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What happens when thermal energy is applied to a substance q
When thermal energy is applied to a substance, the particles in the substance start to vibrate more rapidly, and the average kinetic energy of the particles increases.
What happens when thermal energy is applies to a substanceAs a result, the temperature of the substance increases. The amount of thermal energy required to increase the temperature of the substance by a certain amount is called the specific heat capacity of the substance.
The way the substance responds to the applied thermal energy also depends on its physical properties, such as its mass, density, and thermal conductivity. For example, a substance with a high thermal conductivity will transfer heat more rapidly to its surroundings, while a substance with a low thermal conductivity will retain heat more effectively.
If the applied thermal energy is sufficient, the substance may undergo a phase change, such as melting or boiling, as the increased kinetic energy overcomes the intermolecular forces holding the particles together.
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a ball whose mass is 0.3 kg hits the floor with a speed of 6 m/s and rebounds upward with a speed of 5 m/s. if the ball was in contact with the floor for 2 ms (2multiply10-3 s), what was the average magnitude of the force exerted on the ball by the floor?
The average magnitude of the force exerted on the ball by the floor is 150 N. The negative sign indicates that the force is acting in the opposite direction to the motion of the ball.
When a ball hits the floor, it experiences a force from the floor, known as the impulse force, which causes it to rebound upward. The magnitude of this force can be calculated using the principle of conservation of momentum.
First, we can calculate the momentum of the ball before and after the collision. Momentum is the product of mass and velocity, so the momentum of the ball before the collision is:
[tex]p_1$ = m\times $v_1$[/tex]
= 0.3 * 6
= 1.8 kgm/s
After the collision, the ball rebounds upward with a velocity of 5 m/s, so its momentum is:
[tex]p_2$ = m\times $v_2$[/tex]
= 0.3 * 5
= 1.5 kgm/s
The change in momentum, or impulse, is the difference between these two momenta:
J = [tex]p_2$ - p_1[/tex]
= 1.5 - 1.8
= -0.3 kg*m/s
The negative sign indicates that the impulse is in the opposite direction to the initial momentum of the ball.
Now, we can calculate the average force exerted on the ball by the floor using the formula:
F = J/t
where t is the time interval during which the impulse force acts. In this case, the ball is in contact with the floor for 2 ms, or 0.002 s, so we have:
F = (-0.3) / (0.002) = -150 N
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recall the two variables that affect the density of water, temperature and salinity. which scenario would cause the water to be most dense?
If the two variables that affect the density of water are temperature and salinity then the scenario that would cause water to be most dense is when the water is at a low temperature and high salinity.
Salinity refers to the concentration of dissolved salts and other minerals in the water.
When the temperature is low, the molecules of water are more tightly packed, which results in higher density. Similarly, when the salinity is high, there are more dissolved particles in the water, which also results in a higher density. Therefore, the scenario that would cause the water to be most dense is when both the temperature is low and the salinity is high.
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what is the wavelength in meters of an electron (mass *9.11 * 10-28 g) that has been accelerated to a speed of2.1 * 107 m>s?
The wavelength of an electron with a mass of 9.11 x 10^-28 g that has been accelerated to a speed of 2.1 x 10^7 m/s is 1.23 x 10^-10 meters.
What is the wavelength of an electron (mass *9.11 * 10-28 g) that has been accelerated to a speed of2.1 * 107 m>s?To find the wavelength of an electron that has been accelerated to a speed of 2.1 x 10^7 m/s, we can use the de Broglie equation:
wavelength = h / mv
where h is Planck's constant (6.626 x 10^-34 J*s), m is the mass of the electron (9.11 x 10^-28 g), and v is the velocity of the electron (2.1 x 10^7 m/s).
First, we need to convert the mass of the electron from grams to kilograms:
m = 9.11 x 10^-28 g = 9.11 x 10^-31 kg
Now we can plug in the values into the equation:
wavelength = h / mv
wavelength = 6.626 x 10^-34 J*s / (9.11 x 10^-31 kg)(2.1 x 10^7 m/s)
wavelength = 1.23 x 10^-10 m
Therefore, the wavelength of an electron with a mass of 9.11 x 10^-28 g that has been accelerated to a speed of 2.1 x 10^7 m/s is 1.23 x 10^-10 meters.
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Which two subfields of psychology are similar and involve diagnosing and treating mental disorders?
A). Counseling psychology and social psychology
B). Clinical psychology and developmental psychology
C). Clinical psychology and counseling psychology
D). Developmental psychology and counseling psychology
The two subfields of psychology that are similar and involve diagnosing and treating mental disorders are Clinical psychology and the Counseling psychology. Therefore, the correct answer is: C).
Clinical psychology and Counseling psychology. Both of these subfields involve the assessment, diagnosis, and treatment of mental health disorders, although they may differ in their focus and approach. Clinical psychology tends to the focus on more severe mental health issues, such as schizophrenia and the bipolar disorder, while Counseling psychology tends to focus on a wider range of issues, such as stress management, relationship problems, and career counseling. Hence correct answer is : C) .
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the box weighing 18 newtons is coated with teflon® and now requires a force of 3 newtons to drag it.the coefficient of friction is .
To determine the coefficient of friction for the box weighing 18 Newtons and requiring a force of 3 Newtons to drag it after being coated with Teflon®, you can use the formula:
Coefficient of friction (μ) = Force of friction (F_ friction) / Normal force (F_ normal)
In this case, the Force of friction (F_ friction) is the force required to drag the box, which is 3 Newtons. The Normal force (F_ normal) is equal to the weight of the box, which is 18 Newtons.
Plug these values into the formula:
μ = 3 N / 18 N
μ = 0.1667
The coefficient of friction for the box coated with Teflon® is approximately 0.1667.
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a spring gun shoots out a plastic ball at speed v. the spring is then compressed twice the distance it was on the first shot. by what factor is the ball's speed increased?
Answer:√4 = 2.
Explanation:
When the spring gun is fired for the first time, let's assume that the spring was compressed by a distance of x, and the plastic ball is shot out at a speed of v.
Now, the spring is compressed twice the distance it was on the first shot. Therefore, the new compression distance is 2x.
Let's assume that the speed of the plastic ball after the second shot is v'. We can use the principle of conservation of energy to relate the speed of the ball to the compression distance of the spring.
For the first shot, the energy stored in the spring (½kx², where k is the spring constant) is converted into the kinetic energy of the ball (½mv², where m is the mass of the ball). Therefore,
½kx² = ½mv²
For the second shot, the energy stored in the spring (½k(2x)² = 2kx²) is again converted into the kinetic energy of the ball (½mv'²). Therefore,
2kx² = ½mv'²
Dividing the second equation by the first equation, we get:
v'²/v² = 4
Therefore, the speed of the plastic ball is increased by a factor of √4 = 2. So, the ball's speed is increased by a factor of 2.
can you hold your breath for one minute? even if you wanted to hold it longer, why can you not voluntarily do it?
As an artificial intelligence language model, I don't have a physical body and hence, I cannot hold my breath or perform any physical activities.
However, here is a step-by-step explanation of why most people cannot hold their breath voluntarily for a long period of time:
1) Breathing: Breathing is the process of inhaling oxygen and exhaling carbon dioxide. It is essential for delivering oxygen to the body's tissues and organs.
2) Carbon dioxide: When you hold your breath, your body continues to consume oxygen, but it is not able to expel carbon dioxide as effectively. This leads to an accumulation of carbon dioxide in the body.
3) Breath-holding reflex: As the levels of carbon dioxide in the body increase, the body triggers a reflex called the "breath-holding reflex".
This reflex causes the body to breathe involuntarily, even if you are trying to hold your breath voluntarily.
4) Autonomic nervous system: The breath-holding reflex is controlled by the autonomic nervous system, which is responsible for regulating involuntary bodily functions such as breathing, heart rate, and digestion.
This means that it operates outside of our conscious control.
5) Protective mechanism: The breath-holding reflex is a protective mechanism that ensures that the body's tissues and organs receive enough oxygen to function properly.
If the body were to continue to hold its breath, the lack of oxygen could cause damage to the body's tissues and organs.
6) Limitations: While some individuals may be able to hold their breath for longer periods of time than others, eventually the buildup of carbon dioxide in the body will trigger the breath-holding reflex, and the body will start to breathe involuntarily.
This means that even if you want to hold your breath longer, your body will eventually take over and force you to breathe again.
In summary, the body's protective mechanisms, controlled by the autonomic nervous system, make it difficult for most people to voluntarily hold their breath for a long period of time.
The buildup of carbon dioxide in the body eventually triggers the breath-holding reflex, causing the body to breathe involuntarily.
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Through which material do sound waves tend to move the most quickly
When a sound wave passes through a material, it causes the particles of that material to vibrate back and forth in the same direction as the wave.
In solids, the particles are tightly packed together and have strong intermolecular forces holding them in place. This means that when a sound wave passes through a solid, the vibrations are transmitted quickly from one particle to next. In liquids, particles are still close together, but they are not held in place as tightly as in solids. In gases, the particles are much more spread out and have weaker intermolecular forces. Sound waves tend to move more quickly through solids because of the tight packing of the particles.
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what would be the met-min per week if a 70 kg person is walking/jogging for 60 minutes per day, 3 days per week at the intensity of 6 mets?
A 70 kg person would burn about 527 MET-minutes per week if they exercised for 60 minutes each day, three days per week, at a moderate effort of 6 METs.
The energy expended during physical activity is measured in METs. The sum of the individual's oxygen intake (VO2) times their weight in kilogrammes and the number of minutes spent exercising is the total MET-minutes.
The formula 3.5 + (METs) can be used to calculate VO2 by multiplying METs by 0.1. People can track their physical activity and make sure they are following the advised exercise standards for maintaining good health by knowing the total MET-minutes of a session.
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met-min per week for this person would be 75,600.
To calculate the met-min per week for a 70 kg person who is walking/jogging for 60 minutes per day, 3 days per week at the intensity of 6 mets, we can use the following formula:
met-min per week = met value x weight in kg x minutes per week
First, we need to calculate the total minutes per week:
60 minutes per day x 3 days per week = 180 minutes per week
Next, we can plug in the values for the met value (6), weight in kg (70), and minutes per week (180):
met-min per week = 6 x 70 x 180
met-min per week = 75,600
Therefore, the met-min per week for this person would be 75,600.
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If you view a rainbow out your window while riding in a train, you’ll see thatA) the rainbow can only be seen while you’re moving slowly or at rest.B) the rainbow moves along with you.C) you soon pass by it, leaving it where you first saw it.
A rainbow that you view via a train window while riding will follow you as you travel forward. The rainbow won't be visible for very long because it will appear to move with you as the train travels along its course.
This occurs as a result of the sun, precipitation, and your eyes' angle constantly shifting as the train travels, which also causes the rainbow's position to change.
The rainbow won't be visible for very long because it will appear to move with you as the train travels along its course. This phenomena also affects other moving objects and landscapes, such as mountains, trees, and buildings, in addition to rainbows.
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A rainbow that you view via a train window while riding will follow you as you travel forward. The rainbow won't be visible for very long because it will appear to move with you as the train travels along its course.
explanation - If you view a rainbow out your window while riding in a train, you'll see that the rainbow moves along with you. As you move forward, the angle between the sun, your eyes, and the raindrops that create the rainbow changes, causing the rainbow to appear to move with you. However, if the train is moving too fast, you may soon pass by it, leaving it where you first saw it. therefore - its position appears relative to the viewer's location and angle of observation, hence option is B
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where do stars form in the galaxy? group of answer choices in the halo in the bulge near the central engine in the spiral arms
Stars are known to form in different regions of a galaxy, but the majority of them form in the spiral arms of a galaxy.
A galaxy's spiral arms are where the bulk of stars are known to form, though stars can form in other parts of the galaxy as well. Due to the gravitational force of the rotating disc of the galaxy, gas and dust particles are squeezed in spiral arms, which are dense areas. New stars are created as a result of this compression of gas and dust.
The halo, the sphere that surrounds the galactic disc, is one of the areas in the galaxy where stars can develop, although there are other areas as well. Stars can develop in the halo by the accretion of gas onto already-existing stars as well as through the collision and merging of gas clouds.
Due to the enormous gas and dust density in the bulge, the galaxy's core, stars can also form there. Stars can also originate close to the central engine, a supermassive black hole that is typically found at the centre of galaxies, as a result of the black hole's strong gravitational pull and radiation emissions.
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A pendulum on a grandfather clock
is supposed to oscillate once every
2. 00 s, but actually oscillates once
every 1. 99 s. How much must you
increase its length to correct its
period to 2. 00 s?
(Unit = m)
The length must be increased by 0.0099 m to correct the period of the clock to 2.00 s.
Given:
T₀ = 2s
Original time period, T = 1.99s
The time period of a pendulum is:
T = 2π √(L/g)
Let the length of the pendulum be L₀.
The time period is:
T₀ = 2π √(L₀/g)
(T₀/2π)2 = L₀/g
L₀ = g (T₀/2π)2
Let the real length of the pendulum be L.
T = 2π √(L/g)
(T/2π)2 = L/g
L = g (T/2π)2
Subtract both the lengths, and we get:
L₀ - L = g (T₀/2π)2 - g (T/2π)2
L₀ - L = 9.81 m/s2 ( (2.00s/2π)2 - (1.99s/2π)2 )
L₀ - L = 0.0099 m.
Hence, The length must be increased by 0.0099 m to correct its period to 2.00 s.
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suppose the horns of all cars emitted sound at the same pitch or frequency. what would be the change in the frequency of the horn of a car moving toward ou? away from you?
The frequency of the horn of a car moving towards you would increase, while the frequency of a car moving away from you would decrease due to the Doppler effect.
The frequency of the sound waves an automobile makes will rise as it approaches you. This is due to the sound waves compression as the automobile draws closer to you, which causes them to have a shorter wavelength and a higher frequency. The Doppler effect is the name for this rise in frequency.
On the other hand, when an automobile pulls away from you, the sound waves' frequency will drop because they stretch, leading to a longer wavelength and a lower frequency. As a result, if all vehicles produce sound at the same frequency, you would hear a frequency rise for a vehicle travelling in your direction and a frequency drop for a vehicle driving away from you.
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If the car is moving towards you, the frequency of the horn will increase,moving away from you, the frequency will decrease
If the horns of all cars emitted sound at the same pitch or frequency, the frequency of the horn of a car moving toward you would appear to increase, as the sound waves are compressed and the wavelength is shortened due to the Doppler effect. Conversely, the frequency of the horn of a car moving away from you would appear to decrease, as the sound waves are stretched and the wavelength is lengthened due to the Doppler effect. This is because the observer perceives a higher frequency when the source is approaching and a lower frequency when the source is moving away.
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at a given instant in time, an 8-kg rock that has been dropped from a high cliff, experiences an upward force of air resistance of 12 n.note: this is a multi-part question. once an answer is submitted, you will be unable to return to this part.what is the gravitational force on the rock? use g
The gravitational force on the rock is 78.4 Newtons.
At the given instant, the 8-kg rock experiences a gravitational force which can be calculated using the formula:
F_gravity = m * g
where m is the mass of the rock (8 kg) and g is the acceleration due to gravity (approximately 9.8 m/s²).
F_gravity = 8 kg * 9.8 m/s² = 78.4 N
So, the gravitational force on the rock is 78.4 Newtons.his net force causes the rock to accelerate downwards.
The concept of gravitational force is an important one in physics, as it plays a significant role in many natural phenomena. The force of gravity is responsible for the motion of celestial bodies, and it is also a key factor in determining the weight of objects on earth.
Understanding the principles of gravitational force can help us understand the behavior of objects in motion and can also help us develop technologies that are based on these principles.
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what is an expression for x1(t) , the position of mass i as a function of time? assume that the position is measured in meters and time is measured in seconds.
The expression for x1(t) , the position of mass i as a function of time, is x1(t) = x1_0 + v1_0 * t + 0.5 * a1 * t²
To find an expression for x1(t), the position of mass 1 as a function of time, we need to consider the following terms:
1. Initial position (x1_0): The position of mass 1 at time t=0.
2. Initial velocity (v1_0): The velocity of mass 1 at time t=0.
3. Acceleration (a1): The constant acceleration acting on mass 1, if applicable.
Now, we can use the general equation for the position of an object as a function of time:
x1(t) = x1_0 + v1_0 * t + 0.5 * a1 * t²
Where x1(t) is the position of mass 1 at time t, x1_0 is the initial position, v1_0 is the initial velocity, a1 is the acceleration, and t is the time in seconds.
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what do we mean by accretion in the context of planet formation? group of answer choices the solidification of ices, rocks, and metal from the gas of the solar nebula the formation of moons around planets the growth of planetesimals from smaller solid particles that collided and stuck together the growth of the sun as the density of gas increased in the center of the solar nebula
When planetesimals get bigger, they get heavier and start to pull on other planetesimals, which promotes greater growth and the creation of protoplanets.
Describe growth?Grow is a broad term for the process of growing larger or more numerous, or of evolving and developing over time. It can be used for the development of living species, such as plants or animals, in addition to the development of non-living objects like enterprises, economies, or populations. The phrase can also be interpreted metaphorically to refer to one's growth as a person or to the expansion of one's knowledge or abilities.
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duc 1. Define the term 'element. 2. If you break down each of the following, how many different atoms would you be able to recover? a) Mercury b) Sodium chloride c) Water d) Carbon dioxide e) Oxygen
part a.
An element is described as a pure substance that is composed of only one type of atom. Each element is characterized by a unique atomic number, which corresponds to the number of protons in the nucleus of its atoms.
part b.
a) Mercury - breaking down mercury would yield only mercury atoms.
b) Sodium chloride - Breaking down sodium chloride would yield sodium and chlorine atoms in their respective ratios.
c) Water -Breaking down water would yield hydrogen and oxygen atoms in their respective ratios.
d) Carbon dioxide : Breaking down carbon dioxide would yield carbon and oxygen atoms in their respective ratios.
e) Oxygen - breaking oxygen down would yield only oxygen atoms.
More about Elements?Some facts about elements includes;
Elements found on Earth and Mars are exactly the same.Hydrogen is the most common element found in the universe. Isotopes are atoms of the same element, with different numbers of neutrons.In ancient times the elements referred to fire, earth, water, and air.Learn more about elements at: https://brainly.com/question/20096027
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a 45-cm -long, 65 g rod rotates about an axle at one end of the rod. at what angular velocity, in rpm , does the rod have 50 mj of rotational kinetic energy?
linear kinetic energy, the moment of inertia and angular velocity can be used to express the kinetic energy of a rotating object.
Thus, The translational kinetic energy of the centre of mass and the rotational kinetic energy about the centre of mass add up to the total kinetic energy of an extended object. The form of the rotational kinetic energy for a particular fixed axis of rotation is
The work-energy principle can be used to parallel build the equations for rotational and linear kinetic energy. Think about the comparison between a constant force applied to a mass m starting at rest and a constant torque applied to a flywheel with moment of inertia I.
The average velocity is half the final velocity and Newton's second law is equal to the final velocity divided by the time, the work done on the block results in kinetic energy that is equal to the work done.
Thus, linear kinetic energy, the moment of inertia and angular velocity can be used to express the kinetic energy of a rotating object.
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Show that the form of Newton’s second law is invariant under the Galilean transformation. According to Newton’s second law, the net force acting on an object is equal to the product of its mass and acceleration. Newton’s second law of motion is given by following expression:
Newton’s second law of motion states that the force F acting on an object of mass m produces an acceleration a in the object, and is given by, F = ma. The law s invariant under Galilean transformation.
The Galilean transformation is a set of equations that describe the relationship between two reference frames that are in relative motion with constant velocity. It has no effect on the form of Newton’s second law because it only involves a change of coordinates and time, which do not affect the physical laws.
To see this, consider two reference frames S and S', where S' moves with constant velocity v with respect to S. Let an object of mass m be at rest in S, and let F be the net force acting on it in S. According to Newton’s second law in S, we have:
F = ma
Now, let us apply the Galilean transformation to the equation. The position of the object in S' is given by:
x' = x - vt
where x is the position of the object in S, and t is time. Taking the derivative of x' with respect to t, we get:
v' = dx'/dt
= dx/dt - v
= v - v
= 0
This means that the velocity of the object is the same in both reference frames. Similarly, the acceleration is also the same in both reference frames, since it is the derivative of velocity,
a' = dv'/dt = da/dt = a
Therefore, we can write Newton’s second law in S' as,
F' = ma'
where F' is the net force acting on the object in S'. Substituting a' = a, we get:
F' = ma
which is the same form as in S. Thus, we see that the form of Newton’s second law is invariant under the Galilean transformation.
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what is the ultimate fate of an isolated pulsar? it will spin ever faster, becoming a millisecond pulsar. as gravity overwhelms the neutron degeneracy pressure, it will become a white dwarf. as gravity overwhelms the neutron degeneracy pressure, it will explode as a supernova. it will slow down, the magnetic field will weaken, and it will become invisible. the neutron degeneracy pressure will eventually overwhelm gravity and the pulsar will slowly evaporate.
The ultimate fate of an isolated pulsar is determined by a combination of various physical processes that act on it over time.
The ultimate fate of an isolated pulsar depends on various factors such as its mass, rotation speed, and magnetic field strength. If the pulsar has a low mass, it may eventually spin faster and become a millisecond pulsar.
However, if it has a high mass, it may explode as a supernova, releasing huge amounts of energy and leaving behind a neutron star or a black hole.
In some cases, if the magnetic field weakens and the pulsar slows down, it may become invisible. As the neutron degeneracy pressure overwhelms gravity, the pulsar may eventually transform into a white dwarf.
Alternatively, the neutron degeneracy pressure may eventually overwhelm gravity, and the pulsar will slowly evaporate.
Overall, the ultimate fate of an isolated pulsar is determined by a combination of various physical processes that act on it over time.
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