The VCE voltage drop in saturation for a typical BJT can be assumed to be between 0.1V and 0.3V.
How VCE voltage drop in saturation for a typical BJT?The voltage drop across the collector and emitter (VCE) of a bipolar junction transistor (BJT) when it is in saturation depends on several factors such as the type of BJT, the collector current, and the biasing conditions.
However, as a general rule of thumb, the VCE voltage drop in saturation for a typical BJT can be assumed to be between 0.1V and 0.3V, depending on the specific characteristics of the transistor. This value may vary based on the operating conditions and the specific transistor used.
It's worth noting that the VCE voltage drop in saturation is typically lower than the voltage drop in the active region, where the BJT behaves as a current amplifier. In the active region, the VCE voltage drop can range from a few tenths of a volt up to several volts, depending on the transistor's characteristics and operating conditions.
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.A cannonball is launched upward with a velocity of 73.5 m/s at an angle of 20 degrees above the
horizontal.
(a) How long is the cannonball in the air?
(b) How far away does it land?
() How high does it travel? Cut your time in half!
Answer:
time of flight=( 2U sinx ) ÷ g
Explanation:
a)
u=73.5m/s , x= 20° , g =10m/s^2 then t= {2×73.5 × sin 20°} ÷ 10 = 134.2 ÷ 10 = 13.42 sec b) range is the distance, range= (u^2 sin 2 x ) ÷g = ({73.5 }^2 × sin 2 × 20 )÷ 10 =4025.3÷10 = 402.53meters. I couldn't finish the question so sorry
Please help I need to answer fast the fate of my graduation depends on it.
First, we need to find the total mass of the system by adding the masses of the two objects: m_total = m1 m2 = 50.0 kg 75.0 kg = 125.0 kg Next, we can plug in the given force and mass values into the equation: F = ma 40.0 N = 125.0 kg * a Solving for a: a = 40.0 N
125.0 kg * a
Solving for a:
a = 40.0 N / 125.0 kg
a = 0.32 m/s^2
Therefore, the acceleration of the system is 0.32 m/s^2.
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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Power supplies are rated for efficiency based on. drawn to supply sufficient power to the PC. a. volts b. watts c. amperes d. ohms. Study These Flashcards.
B. Power supplies are rated for efficiency based on watts. The efficiency of a power supply is determined by the ratio of its output power (in watts) to its input power (also in watts).
The lesser the effectiveness, the lower power is wasted as heat and the lesser the power given to the computer's factors. In addition to effectiveness, power inventories are rated for maximum affair power, which is generally expressed in watts. This standing represents the loftiest quantum of power that the power force can deliver to the computer's factors.
Other conditions, similar as voltage and amperage conditions for their different affair connections, may be assigned to power inventories. The maximum voltage and current that the power force can produce on each connection are indicated by these conditions. Ohms, on the other hand, are a resistance unit that's infrequently used to grade power force.
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How does energy in the food chain flow to an omnivore such as a fox?
A) The fox is a plant eater and receives energy directly from plants.
B) The fox receives energy directly from the sun and the plants it eats.
C) When the fox eats an animal that eats plants, it receives energy directly from the sun.
D) When the fox eats an animal that eats plants, it receives energy indirectly from the sun.
The correct answer is option D) When the fox eats an animal that eats plants, it receives energy indirectly from the sun.
How does energy flow in a food chain?Energy in a food chain flows from the sun, to the producers (plants), to the primary consumers (herbivores), to the secondary consumers (carnivores), and so on. Omnivores, such as foxes, consume both plants and animals, but they typically obtain more of their energy from consuming other animals.
When a fox eats an animal that eats plants, it is receiving energy indirectly from the sun. The plants that the prey animal consumed converted the energy from the sun into organic molecules through the process of photosynthesis. The prey animal then consumed those plants and converted the organic molecules into its own tissues. When the fox eats the prey animal, it is obtaining the energy stored in the prey's tissues.
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A 3. 0-kg mass moving in the positive x direction with a speed of 10 m/s collides with a 6. 0-kg mass initially at rest. After the collision, the speed of the 3. 0-kg mass is 8. 0 m/s, and its velocity vector makes an angle of 35° with the positive x axis. What is the magnitude of the velocity of the 6. 0-kg mass after the collision?
The magnitude of the velocity of the 6.0 kg mass after the collision is approximately 1.7 m/s.
We can solve this problem using conservation of momentum and conservation of kinetic energy. Conservation of momentum states that the total momentum of a system is conserved if there are no external forces acting on it. In this case, the system is the two masses.
Let p1 and p2 be the initial momenta of the 3.0 kg and 6.0 kg masses, respectively, and p1' and p2' be their final momenta after the collision. Since the 6.0 kg mass is initially at rest, we have:
p1 = m1v1 = (3.0 kg)(10 m/s) = 30 kg·m/s
p2 = m2v2 = (6.0 kg)(0 m/s) = 0 kg·m/s
After the collision, the 3.0 kg mass moves at an angle of 35° with a speed of 8.0 m/s. We can break its velocity into x- and y-components:
vx = v1' cos(35°) = 8.0 m/s cos(35°) ≈ 6.6 m/s
vy = v1' sin(35°) = 8.0 m/s sin(35°) ≈ 4.6 m/s
The total momentum of the system after the collision is:
p1' + p2' = m1v1' + m2v2'
We can use conservation of momentum to say that p1 + p2 = p1' + p2', so:
p1' + p2' = 30 kg·m/s
Substituting in the known values, we have:
(3.0 kg)(6.6 m/s) + (6.0 kg)v2' = 30 kg·m/s
Solving for v2', we get:
v2' = (30 kg·m/s - 19.8 kg·m/s) / 6.0 kg ≈ 1.7 m/s
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Green laser pointers emit light with a wavelength of 532 nm. Do research on the type of laser used in this type of pointer and describe its operation. Indicate whether the laser is pulsed or continuous.
Pulsed lasers are used in specific applications where short bursts of laser light are needed, such as in laser ranging, lidar, or certain medical procedures.
What is Wavelength?
Wavelength is a term used in physics to describe the distance between two consecutive points of a wave that are in phase, or the distance over which a wave completes one cycle. It is commonly denoted by the Greek letter lambda (λ) and is usually measured in units such as meters (m), nanometers (nm), or angstroms (Å).
Green laser pointers typically use a type of laser known as a diode-pumped solid-state (DPSS) laser to generate laser light at a wavelength of 532 nm, which corresponds to green light in the visible spectrum. DPSS lasers are a type of laser that uses a solid-state crystal or material as the gain medium, which is pumped by a diode laser to achieve laser emission.
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if an object were to suddenly shrink and decrease its moment of inertia by a factor of 3, what is the difference in energy between the final and initial rotational kinetic energies?
The difference in energy between the final and initial rotational kinetic energies is -(2/3) times the initial rotational kinetic energy.
The rotational kinetic energy of an object is given by the formula:
[tex]K_rot = \frac{1}{2} * I * w^{2}[/tex]
where K_rot is the rotational kinetic energy, I am the moment of inertia, and ω is the angular velocity.
If the moment of inertia of an object decreases by a factor of 3, then the rotational kinetic energy will decrease by a factor of 3 as well.
Let K1 be the initial rotational kinetic energy of the object, and K2 be the final rotational kinetic energy of the object. Then, we can write:
K2 = (1/3) * K1
The difference in energy between the final and initial rotational kinetic energies is:
ΔK = K2 - K1
ΔK = (1/3) * K1 - K1
ΔK = [tex]-(2/3)*k1[/tex]
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look again at the visible-light view of m82. what is the source of the white and blue light that dominates the image?
In the visible-light view of M82, the source of the white and blue light that dominates the image is mainly due to the presence of young, massive stars. These stars emit high amounts of energy, which results in a strong blue and white glow.
The white and blue light in the visible-light view of M82 is primarily coming from young, hot, massive stars that are forming in the galaxy's intense starburst regions. These stars emit large amounts of ultraviolet radiation, which ionizes the surrounding gas and causes it to glow brightly in visible light. Additionally, some of the blue light may be due to scattered starlight off of dust particles in the galaxy's disk.
The blue light comes from the hot, young stars, while the white light is a combination of light emitted by various types of stars within the galaxy. The high star formation rate in M82 contributes to the abundance of these bright stars and the overall appearance of the galaxy.
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A bow is drawn so that it has 40 J of potential energy. When fired, the arrow will have a kinetic energy of: Select one: O a. 80) o b. 20) O 0.60) O d. 40)
When a bow is drawn and has 40 J of potential energy, the arrow's kinetic energy when fired will be:
Your answer: d. 40 J
Explanation:
Potential energy is the energy that an object possesses due to its position, configuration, or state of being. It is stored energy that has the potential to do work in the future. The amount of potential energy that an object has depends on its position or configuration relative to other objects or systems. For example, a bow that is pulled back has potential energy that can be released as kinetic energy when it is released.
Kinetic energy, on the other hand, is the energy that an object possesses due to its motion. It is the energy that an object possesses because it is in motion and is able to do work by causing a change in another object's motion or position. The amount of kinetic energy that an object has depends on its mass and its velocity. For example, a moving car has kinetic energy that can be transferred to another object if it collides with it.
When the bow is drawn, it stores potential energy. When fired, this potential energy is converted into kinetic energy for the arrow. In an ideal situation with no energy loss, the arrow's kinetic energy will be equal to the bow's potential energy. Therefore, the arrow will have a kinetic energy of 40 J.
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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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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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What is the receiving body of the force?
To answer this question, more context is needed, since force can be exerted by one object on another object. In this case, the body receiving the force would be the object that receives the force, that is, the object on which the force is being exerted. For example, if a person pushes a box, the receiving body of the force would be the box, since it is receiving the force exerted by the person.
Answer:
The question is not quite clear but the receiving body of a force will be the object on which the force is being exerted upon. Hope this helps.
A book sitting on a desk with the surface area of the cover of .05 m^2. The atmospheric pressure is 100kPa. What is the downward force of the atmosphere on the book?
The downward force of the atmosphere on the book is equal to the pressure of the atmosphere multiplied by the surface area of the book's cover and it is calculated to be 5 N.
What is atmospheric pressure?Atmospheric pressure is the pressure exerted by the weight of the Earth's atmosphere on objects on or near the surface of the Earth. It is caused by the gravitational attraction of the Earth on the gases in the atmosphere. The atmospheric pressure varies with altitude, temperature, and weather conditions, and is typically measured in units of pressure such as pascals (Pa) or kilopascals (kPa).
Force = Pressure x Area
Where:
Pressure = 100 kPa (given)
Area = 0.05 m² (given)
Substituting the given values, we get:
Force = 100 kPa x 0.05 m²
Force = 5 N
Therefore, the downward force of the atmosphere on the book is 5 N.
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. for schrodinger's equation of the h2 molecule, the kinetic energy has contributions from a. electrons only b. nuclei only c. both electrons and nuclei d. only one electron and one nucleus
The kinetic energy in Schrödinger's equation for the H2 molecule includes contributions from both electrons and nuclei. Thus the correct option is C.
The kinetic energy term in Schrödinger's equation for the H2 molecule refers to the energy involved in the motion of the particles. The H2 molecule comprises two hydrogen nuclei and two electrons, therefore the electrons and the nuclei both contribute to the kinetic energy.
The nuclei contribute to the kinetic energy by their mobility, whereas the electrons do so through their wave-like behaviour. The H2 molecule's kinetic energy term in Schrödinger's equation includes contributions from both electrons and nuclei, making option C the right response.
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The kinetic energy in Schrödinger's equation for the H2 molecule includes contributions from both electrons and nuclei. Thus the correct option is C
explanation - For Schrödinger's equation of the H2 molecule, the kinetic energy has contributions from both electrons and nuclei. This is because the kinetic energy term in the equation accounts for the motion of all particles in the system, which in this case includes both the electrons and nuclei of the H2 molecule. Therefore, options a, b, and d are incorrect.
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block 1 is stacked on top of block 2. block 2 is connected by a light cord to block 3, which is pulled along a frictionless surface with a force f as shown in the diagram. block 1 is accelerated at the same rate as block 2 because of the frictional forces between the two blocks. if all three blocks have the same mass m, what is the minimum coefficient of static friction between block 1 and block 2?
The minimum coefficient of static friction between block 1 and block 2 is (F-f-m*a)/g, which can be calculated by equating the horizontal forces acting on block 1.
How to find the minimum coefficient of static friction between block 1 and block 2?The minimum coefficient of static friction between block 1 and block 2 can be calculated by equating the forces acting on block 1 in the horizontal direction. Since block 1 and block 2 have the same acceleration, the net force on block 1 is:
F - f - μ_smg = m*a
where F is the force applied to block 3, μ_s is the coefficient of static friction between block 1 and block 2, and g is the acceleration due to gravity.
Since block 1 and block 2 have the same mass, we can simplify the above equation to:
F - f - = ma
Solving for μ_s, we get:
μ_s = (F - f - m*a)/g
Therefore, the minimum coefficient of static friction between block 1 and block 2 is (F - f - m*a)/g.
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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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if the wavelength of a wave in a particular medium is tripled, what will happen to the frequency of the wave?
Answer:
V = λ * ν speed of wave in medium
We know the speed of a particular wave in a medium is constant.
ν = V / λ
If λ is increased by 3 then the frequency ν will be reduced by a factor of three to keep the speed constant.
ν' = ν / 3
on the centered zipper, what is the only part of the work that is done on the outside of the garment?
The only part of the work that is done on the outside of the garment is the basting or pinning of the zipper tape to the fabric.
The rest of the work is done on the inside of the garment. The zipper teeth are inserted between the layers of the fabric and the seam is sewn in place. The seam is then pressed open and the zipper is opened up to expose the teeth.
The zipper tape is then folded back and stitched in place, creating a clean finish on the inside of the garment. The final step is to topstitch the zipper on the outside of the garment, which reinforces the zipper and adds a decorative touch.
Overall, the centered zipper is a popular and versatile choice for many types of garments and can be easily customized to suit individual preferences.
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The surface of which jovian moon most resembles the pack ice of the Arctic Ocean? A) Amalthea B) Io C) Europa D) Ganymede E) Callisto.
is it ok to keep my ac running and just stop the car's engine to save gas and keep cool while waiting for my husband?
It is not recommended to keep the AC running while the engine is off, as this can drain the car battery and may lead to mechanical issues in the long run. It is better to turn off the AC and open the windows or step out of the car to cool off while waiting for your husband.
Idling the engine for extended periods of time can also waste gas and contribute to air pollution. When you stop your car's engine, the air conditioning (AC) system will also stop working, as it requires the engine to be running to function properly. To save gas and keep cool while waiting for your husband, you may consider:
1. Turn off your car's engine to save gas.
2. Open the windows slightly to allow for airflow.
3. Use a portable battery-operated fan to keep yourself cool.
4. Park your car in a shaded area, if possible, to reduce heat buildup inside the vehicle.
5. Wear light, breathable clothing to stay comfortable in warmer temperatures.
Remember that running the AC without the engine is not possible, so it's essential to find alternative ways to stay cool while conserving fuel.
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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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what is the weight of a cubic meter of cork? could you lift it? (use 400 kg/m^3 for the density of cork.)
To lift this weight, you would need a force greater than or equal to 3,920 N (assuming you are lifting it vertically).
weight = [tex]1 m^3 \times 400 kg/m^3 \times9.8 m/s^2[/tex]
weight = 3,920 N
Force is a physical quantity that describes the interaction between objects or systems. The SI unit of force is the Newton (N), which is defined as the amount of force required to accelerate a one kilogram mass at a rate of one meter per second squared.
Force is also responsible for deformations in solid objects, such as stretching or compressing a spring. Nuclear forces are responsible for the interactions between subatomic particles, and frictional forces are the forces that resist motion when two surfaces come into contact. Gravitational force is the force that pulls objects towards each other due to their masses. Electromagnetic force is responsible for the interactions between charged particles, such as in electricity or magnetism.
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true or false an electric current produces a magnetic field and a magnetic field can be used generate electricity
thermal expansion may cause an equipment or piping system overpressure when the liquid is blocked-in
Thermal expansion is a phenomenon in which materials expand when they are heated and contract when they are cooled. This can be a problem in industrial equipment or piping systems that contain liquids, especially when the liquid is blocked-in and cannot move freely.
When the temperature of the liquid increases due to an external heat source, such as a nearby furnace or the sun, the liquid will expand and cause an increase in pressure within the equipment or piping system. This increase in pressure can lead to overpressure, which can be dangerous and can potentially cause equipment failure or system rupture.
It is important to account for thermal expansion when designing industrial equipment and piping systems to ensure that they can safely withstand the changes in pressure caused by temperature fluctuations.
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how much time will pass when it goes from one-half initial voltage to one-fourth its initial voltage
The time taken is twice the time taken to decrease from the initial voltage to one-half initial voltage.
How much time will pass when it goes from one-half initial voltage to one-fourth its initial voltage?The amount of time it takes for a voltage to decrease from one level to another depends on the characteristics of the system generating the voltage.
Assuming that the voltage is decreasing exponentially over time, the time it takes for a voltage to decrease from one level to another can be calculated using the formula:
[tex]t = -(ln(Vf/Vi))/λ[/tex]
where t is the time taken, Vi is the initial voltage, Vf is the final voltage, and λ is the decay constant of the system generating the voltage.
If the voltage decreases from one-half its initial voltage to one-fourth its initial voltage, then [tex]Vi = 1, Vf = 1/4[/tex], and the voltage has decreased by a factor of 2.
Assuming that the decay is exponential, the time it takes to decrease by a factor of 2 is:
[tex]t = -(ln(1/2))/λ[/tex]
We can simplify this expression using the fact that [tex]ln(1/2) = -ln(2)[/tex], which gives:
[tex]t = ln(2)/λ[/tex]
Similarly, the time it takes to decrease by a factor of 4 is:
[tex]t = -(ln(1/4))/λ = ln(4)/λ = 2ln(2)/λ[/tex]
So, the ratio of the time taken to decrease from one-half initial voltage to one-fourth initial voltage is:
[tex]t(1/4) / t(1/2) = (2ln(2)/λ) / (ln(2)/λ) = 2[/tex]
Therefore, the time taken to decrease from one-half initial voltage to one-fourth initial voltage is twice the time taken to decrease from the initial voltage to one-half initial voltage.
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in a study of the photoelectric effect, a researcher shines low-intensity visible light with a wavelength of 650 nm on a sample of metal. she notices that no photoelectrons are produced. what would happen if she were to increase the intensity of the light by a factor of 10?:
Increasing the intensity of the light by a factor of 10 would increase the number of photoelectrons produced.
The photoelectric effect is a phenomenon in which electrons are emitted from a material when it absorbs electromagnetic radiation, such as light. The energy of the radiation must be greater than the work function of the material for electrons to be emitted.
Increasing the intensity of the light increases the number of photons striking the surface of the metal, which increases the likelihood of electrons being emitted. Therefore, increasing the intensity of the light by a factor of 10 would result in the emission of photoelectrons.
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a drawing, provided by the manufacturer, that details permitted interconnections between the intrinsically safe and associated apparatus or between the nonincendive field wiring apparatus or associated nonincendive field wiring apparatus is called a
The drawing provided by the manufacturer, which details the permitted interconnections between intrinsically safe and associated apparatus or between nonincendive field wiring apparatus or associated nonincendive field wiring apparatus, is called a wiring diagram.
A wiring diagram typically includes detailed information about the wiring connections between components, as well as any necessary safety measures such as grounding or shielding. It may also include information about the voltage, current, and power requirements of the system, as well as any limitations or restrictions on the use of particular components or configurations.
This diagram is a critical part of the installation and maintenance process for intrinsically safe and nonincendive electrical systems, as it helps ensure that the correct connections are made and that the system operates safely and effectively.
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The complete question is:
A drawing, provided by the manufacturer, that details permitted interconnections between the intrinsically safe and associated apparatus or between the nonincendive field wiring apparatus or associated nonincendive field wiring apparatus is called a ______________
water is drawn from a well in a bucket tied to the end of a rope whose other end wraps around a cylinder of mass 50 kg and diameter 25 cm. as you turn this cylinder with a crank, the rope raises the bucket. if the mass of a bucket of water is 20 kg, what torque must you apply to the crank to raise the bucket of water at a constant speed?
m_c (mass of cylinder)=50 kg
d=25 cm so r=12.5 cm = 0.125 m m_b
(mass of bucket)=20 kg
So using the equations: RT = � = I � RT= I � (m_b)g-T= (m_b)aR And from what I understand, this is the same as the tangential acceleration? (m_b)g-T=(m_b) � r = F T= ( i � ) / r (m_b)g -(( i � ) / r ) = m � r � ( ((m_b)r) + (I /R ) ) = (m_b)g Leaving us with the final : � = ((m_b)g)/(((m_b)r) + (I /r)) Using this equation, I found I = 0.390625 and the final answer would be 35 rad/s^2 Sorry for such a long post--this is my first time on the website and I read the rules so hopefully I've done everything correctly! Thank you all!
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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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