In a butt joint, the edges of the metal meet so that the thickness of the joint is approximately equal to the thickness of the metal.
In a butt joint, the edges of the metal pieces are placed together so that they are flush with one another, with little or no overlap. This results in a joint where the thickness of the joint is approximately equal to the thickness of the metal being joined. Butt joints are commonly used in welding and metal fabrication, as they provide a clean, simple joint that can be easily welded or brazed together. However, they may not be as strong as other types of joints, such as lap joints or T-joints, which provide more surface area for welding or brazing.
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In welding, a joint refers to the area where two pieces of metal are joined together. There are several types of joints used in welding, including butt joints.
A butt joint is formed when two pieces of metal are placed together, edge to edge, and welded.
The joint is formed so that the thickness of the joint is approximately equal to the thickness of the metal being joined.
The process of making a butt joint involves
1) first preparing the edges of the metal.
2) This may involve grinding or filing to ensure that the edges are clean and straight.
3) The two pieces of metal are then brought together, with their edges touching, and held in place using clamps or other devices.
4) Once the pieces are in place, a welding machine is used to fuse the metal together.
The welding process may involve the use of heat or pressure, or a combination of both, depending on the type of welding being used.
The resulting joint is strong and durable, and is often used in a variety of applications where a strong, seamless joint is needed.
Butt joints are commonly used in the construction of buildings, bridges, and other structures, as well as in the manufacturing of machinery and equipment.
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A planet has mass M = 8.00 × 1023 kg. At what distance will the centripetal acceleration of an orbiting space station be equal to the gravitational acceleration on Earth’s surface? (G = 6.67 × 10–11 m3·kg–1·s–1)answer is 2.33 x10^6 m. Can someone show the work on how to get this answer?
To find the distance at which the centripetal acceleration of an orbiting space station around a planet is equal to Earth's gravitational acceleration, we need to set up an equation involving the planet's mass (M), gravitational constant (G), and Earth's gravitational acceleration (g).
Given:
M = 8.00 × 10²³ kg
G = 6.67 × 10^(-11) m³·kg^(-1)·s^(-1)
g = 9.81 m/s² (Earth's gravitational acceleration)
Centripetal acceleration (a_c) is given by the formula:
a_c = (G * M) / r²
where r is the distance from the planet's center.
We want the centripetal acceleration to be equal to Earth's gravitational acceleration, so we can set them equal:
g = (G * M) / r²
Now, we need to solve for r:
r² = (G * M) / g
r² = (6.67 × 10^(-11) m³·kg^(-1)·s^(-1) * 8.00 × 10²³ kg) / 9.81 m/s²
r² ≈ 5.42 × 10¹² m²
Now, take the square root of both sides to find r:
r ≈ 2.33 × 10^6 m
So, at a distance of 2.33 x 10^6 meters from the planet's center, the centripetal acceleration of an orbiting space station will be equal to the gravitational acceleration on Earth's surface.
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The following formula can be used to determine the distance from the planet's centre at which the centripetal acceleration of an orbiting space station equals the gravitational acceleration on Earth's surface:
[tex]r = (GM/g)^(1/3)[/tex]
where the gravitational constant, G, equals 6.67 1011 m3 kg-1 s-1.
M is equal to 8.00 1023 kg (the planet's mass).
Gravitational acceleration on Earth's surface is equal to 9.81 m/s2.
When we change the values, we obtain:
[tex]r = [(6.67 × 10^-11) × (8.00 × 10^23) / 9.81]^(1/3)[/tex]
[tex]r = 2.33 × 10^6 m[/tex]
Therefore, 2.33 x 106 m is the necessary distance.
F = G (m1m2 / r2), where G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between them, can be used to express the gravitational force between two objects. When a planet and a satellite are involved, the centripetal force that holds the satellite in orbit around the planet is produced by the gravitational force. As a result, we may compare the centripetal force to gravity and find r. This results in the formula above, which we can use to calculate the necessary distance.
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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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. 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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a circuit breaker is rated for a current of 15 a rms at a voltage of 240 v rms. (a) what is the largest value of imax that the breaker can carry?
The largest value of I_max that the breaker can carry is approximately 21.21 A.
Given a circuit breaker rated for 15 A RMS at 240 V RMS, we want to find the largest value of Imax (maximum current) that the breaker can carry. To do this, we'll use the following formula:
I_max = √2 * I_RMS
Where I_RMS is the rated current in RMS, which is 15 A in this case.
Substitute the value of I_RMS into the formula:
Imax = √2 * 15 A
Calculate the value of Imax:
Imax ≈ 21.21 A
Therefore approximately 21.21 A is the largest value of Imax that the breaker can carry.
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The most popular grip in tennis is
the western grip
the eastern grip
the double handed grip
the continental grip
Answer:
The answer is Continental Grip
The melting of methane hydrates on the seafloor can lead to a sharp rise in global temperatures because methane is a powerful greenhouse gas (true or false)
The melting of methane hydrates on the seafloor can lead to a sharp rise in global temperatures because methane is a powerful greenhouse gas. The statement is true.
Methane is a powerful greenhouse gas, with a global warming potential that is estimated to be about 25 times greater than that of carbon dioxide over a 100-year time horizon. Methane hydrates are solid, crystalline compounds that contain a large amount of methane gas trapped within water molecules. These hydrates are stable under certain temperature and pressure conditions, but if they become destabilized, they can release large amounts of methane into the atmosphere.
The melting of methane hydrates on the seafloor is a concern because it has the potential to release vast amounts of methane into the atmosphere, which could significantly contribute to global warming and climate change. This process could be triggered by rising ocean temperatures, changes in ocean currents, or other factors that alter the stability of the hydrates. While the exact extent and impact of this phenomenon are still uncertain, it is an area of active research and concern among climate scientists.
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The majority of Venus's surface is:
A. volcanic plains with flowing lava.
B large, flat mesas with tiny valleys.
C. thick, soupy clouds of hydrogen.
D. frozen dunes of dust and sand.
Answer:
C.
Explanation:
When Venus surface get bit cold when weather hits the planet gets soupy clouds and etc.
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.
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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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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help me please oml 2 one
Color: Both the bromine gas and steak have a brownish color.
What is bromine gas?Bromine gas is a reddish-brown, nonflammable, and highly toxic gas with a very strong, unpleasant odor. It is composed of two heavy, diatomic, halogen molecules, Br2, and is the only nonmetal element that exists as a liquid at room temperature. Bromine gas is denser than air and is soluble in water and organic solvents.
Texture: The bromine gas is a gas and therefore has no texture, while the steak is solid and has a firm texture.
Temperature: The bromine gas is a gas and therefore has a lower temperature than the steak, which is at room temperature.
Bromine Gas and Juice:
Color: The bromine gas is brownish and the juice is a yellowish or orange color.
Texture: The bromine gas is a gas and therefore has no texture, while the juice is a liquid and has a smooth texture.
Temperature: The bromine gas is a gas and therefore has a lower temperature than the juice, which is at room temperature.
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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.
a pendulum is swinging upward and is halfway toward its highest position, as shown, when the string breaks. which of the paths shown best represents the one that the ball would take after the string breaks?
The option A is best representation of the path that the ball would take after the string breaks.
When the string of a pendulum breaks, the ball's path will follow the laws of motion, specifically the law of conservation of energy. As the ball was halfway to its highest position, it had a certain amount of potential energy.
When the string broke, this potential energy would convert to kinetic energy, causing the ball to move in a straight line tangent to the point where the string broke.
Therefore, the path that the ball would take after the string breaks would be a straight line away from the pivot point of the pendulum, as shown in option A. The other paths shown do not follow the laws of motion and do not account for the conservation of energy. Option (A) is the correct answer.
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Note the full question is
A pendulum is swinging upward and is halfway toward its highest position, as shown, when the string breaks. which of the paths shown best represents the one that the ball would take after the string breaks?
A) A
B) B
C) C
D) D
E) E
A loose spiral spring carrying no current is hung from a ceiling. When a switch is thrown so that a current exists in the spring, do the coils move closer together move farther apart not move at all
The coils in the spring will move farther apart when a current is passed through it because of the solenoid effect.
The solenoid effect describes the way a loose spiral spring expands when a current is fed through it. An electric current flows through a coil of wire to create a solenoid, a type of electromagnet. A magnetic field is produced when current passes through the coil, and the magnetic field lines are parallel to the axis of the coil. The amount of current flowing through the coil and the number of wire turns within the coil determines how strong the magnetic field is.
Because a loose spiral spring behaves like a coil of wire, the solenoid effect is seen in this situation. The magnetic field that is created around a spring when a current is sent through it has lines that are parallel to the spring's axis. The interaction between the magnetic field and the spring's current produces a force that pushes the coils apart.
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when does a star become a main-sequence star? when the rate of hydrogen fusion within the star's core is high enough to maintain gravitational equilibrium when hydrogen fusion is occurring throughout a star's interior when the protostar assembles from a molecular cloud when a star becomes luminous enough to emit thermal radiation the instant when hydrogen fusion first begins in the star's core
Answer: hope it helps
Explanation:
A protostar becomes a main sequence star when its core temperature exceeds 10 million K. This is the temperature needed for hydrogen fusion to operate efficiently.
what does the technique of interferometry allow?what does the technique of interferometry allow?it allows two or more telescopes to obtain a total light-collecting area much larger than the total light-collecting area of the individual telescopes.it allows us to determine the chemical composition of stars.it allows two or more telescopes to obtain the angular resolution of a single telescope much larger than any of the individual telescopes.it allows the same telescope to make images with both radio waves and visible light.it allows astronomers to make astronomical observations without interference from light pollution.
The technique of interferometry allows two or more telescopes to obtain the angular resolution of a single telescope much larger than any of the individual telescopes.
This is achieved by combining the signals received by the telescopes to create a single image with a higher resolution. Interferometry is especially useful for studying objects with small angular sizes, such as stars and planets.
Additionally, interferometry allows astronomers to make astronomical observations without interference from light pollution, as it can separate the signals from the object being observed from the background light.
However, interferometry does not directly determine the chemical composition of stars, although it can provide information about their temperature and other physical properties.
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in an rc circuit what teh range of c needed for the capacitor to be 99.3% charged within 10 ms of turning the voltage source on ?
The range of capacitance needed for the capacitor to be 99.3% charged within 10 ms of turning the voltage source on is greater than or equal to 56.3 times the resistance in ohms.
To calculate the range of capacitance needed for the capacitor to be 99.3% charged within 10 ms of turning the voltage source on in an RC circuit, we can use the following formula:
Vc(t) = Vmax * (1 - e^(-t/RC))
where Vc(t) is the voltage across the capacitor at time t, Vmax is the maximum voltage of the source, e is the mathematical constant approximately equal to 2.718, R is the resistance in ohms, C is the capacitance in farads, and t is the time in seconds.
When the capacitor is 99.3% charged, the voltage across it is 0.993 * Vmax. Substituting this value into the formula and solving for C, we get:
C >= t / (R * ln(1 / (1 - 0.993)))
C >= 10 ms / (R * ln(1 / 0.007))
C >= 56.3 * R
Therefore, the range of capacitance needed for the capacitor to be 99.3% charged within 10 ms of turning the voltage source on is greater than or equal to 56.3 times the resistance in ohms.
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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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catching a wave, a 73.2-kg surfer starts with a speed of 1.44 m/s, drops through a height of 1.84 m, and ends with a speed of 8.89 m/s. how much nonconservative work was done on the surfer?
The nonconservative work done on the surfer is 2845.5 J.
We can use the work-energy theorem to solve this problem. The work-energy theorem states that the net work done on an object is equal to its change in kinetic energy. In this case, we can calculate the initial and final kinetic energies of the surfer and find the difference, which will give us the net work done.
The initial kinetic energy of the surfer is:
[tex]K_i = (1/2) * m * v_i^2[/tex]
[tex]K_i = (1/2) * 73.2 kg * (1.44 m/s)^2[/tex]
K_i = 75.7 J
The final kinetic energy of the surfer is:
[tex]K_f = (1/2) * m * v_f^2[/tex]
[tex]K_f = (1/2) * 73.2 kg * (8.89 m/s)^2[/tex]
K_f = 2921.2 J
The change in kinetic energy is:
ΔK = K_f - K_i
ΔK = 2921.2 J - 75.7 J
ΔK = 2845.5 J
According to the work-energy theorem, this change in kinetic energy must be equal to the net work done on the surfer. Therefore, the nonconservative work done on the surfer is:
W_nc = ΔK
W_nc = 2845.5 J
So, the nonconservative work done on the surfer is 2845.5 J.
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A highway curve is banked (inclined) in such a way that a car travelling at a speed of 18.0m/s can round the curve without skidding, in the absence of friction. If the banking angle is 37°, what is the radius of the curve?
In order for a vehicle travelling at 18.0 m/s to negotiate highway bend without sliding, curve must be banked (inclined). The radius of curve approximately 33.1 metres.
What is the formula for the radius of a road curve?The coefficient of side friction is found to be 0.10, and the superelevation at one horizontal curve has been set at 6.0%.the formula for calculating a road curve's radiusFind the shortest curve radius necessary to ensure safe vehicle operation.
speed of the car v = 18.0 m/s
angle of banking of the curve θ = 37°
acceleration due to gravityg = 9.81 m/s²
radius of the curve = r
N = mg * cos(θ).........1
also
N = mv² / r...........2
from equation 1 and 2 we get
mg * cos(θ) = mv² / r
r = v² / (g * cos(θ))
r = (18.0 m/s)² / (9.81 m/s² * cos(37°)) ≈ 33.1 m
Therefore, radius of the curve is approximately 33.1 meters.
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a wire of length 4.35 m and mass 137 g is under a tension of 125 n. a standing wave has formed which has seven nodes including the endpoints. a. draw the wave pattern b. what is the frequency of this wave? c. which harmonic is it? d. what is the fundamental frequency
The standing wave's fundamental frequency is the frequency of the first harmonic, which has one node and two antinodes, whereas the number of nodes determines the standing wave's harmonic number.
A 4.35 metre long, 137 gramme wire is being pulled at 125 newtons of force. With seven nodes total, including the endpoints, a standing wave has developed.
A collection of dots and dashes can be used to represent the wave pattern. The relationship between wave speed and wavelength is used to compute the standing wave's frequency. The tension in the wire and its linear mass density are used to calculate the wave speed.
The standing wave's fundamental frequency is the frequency of the first harmonic, which has one node and two antinodes, whereas the number of nodes determines the standing wave's harmonic number.
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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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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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in this simplified version of the sgd update there is a clear relationship between momentum and the batch size . what is that relation? specifically, let's assume we train a model with momentum and a batch size . how should we change the momentum if we now have a gpu with more memory and can use a batch size of ? specify the momentum that would lead to equivalent gradient updated in the simplified sgd update equation above. round to two decimal digits (e.g. 0.12).
The equivalent gradient updates as momentum 0.9 with batch size B = 32 in the simplified SGD update equation.
What is the relation?The relationship between momentum and batch size in the simplified version of SGD update is that increasing the batch size leads to a decrease in the effective learning rate, which in turn requires an increase in momentum to maintain the same level of stability.
If we train a model with momentum and a batch size of B, and now have a GPU with more memory and can use a batch size of B', we should increase the momentum by a factor of sqrt(B/B') to maintain the same level of stability.
To find the equivalent momentum for the simplified SGD update equation, we can use the formula:
momentum' = momentum * sqrt(B/B')
For example, if we initially trained with momentum = 0.9 and batch size B = 32, and now have a GPU with enough memory to use batch size B' = 64, we would calculate:
momentum' = 0.9 * sqrt(32/64) = 0.9 * 0.7071 = 0.64 (rounded to two decimal digits)
Therefore, using a momentum of 0.64 with batch size B' = 64 would lead to equivalent gradient updates as momentum 0.9 with batch size B = 32 in the simplified SGD update equation.
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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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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
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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5. Explain the law of conservation of energy using a relevant example from every day life.
The law of conservation of energy states that energy is neither created nor destroyed but is transformed from one form to another.
What is law of conservation of energy?The law of conservation of energy is the law that states that energy is neither created nor destroyed but is transformed from one form to another.
Examples of activities of everyday life that shows the conservation of energy include the following:
For loudspeaker, electrical energy is converted into sound energy.For a microphone, sound energy is converted into electrical energy.For a generator, mechanical energy is converted into electrical energy.When fuels are burnt, chemical energy is converted into heat and light energyLearn more about energy here:
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An example of the law of conservation of energy is a roller coaster.
What is the law of conservation of energy?The law of conservation of energy states that energy cannot be created or destroyed, only transferred or transformed from one form to another. This means that the total amount of energy in a closed system remains constant over time.
A roller coaster car gains kinetic energy as it moves down the track, but it also loses potential energy. At the bottom of the track, the car has the most kinetic energy and the least potential energy, while at the top of the track, it has the most potential energy and the least kinetic energy. However, the total amount of energy in the system remains constant.
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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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at 2.1 km from the transmitter, the peak electric field of a radio wave is 350 mv/m . what is the peak electric field 10 km from the transmitter?
The peak electric field 10 km from the transmitter is approximately 15.435 mV/m.
To find the peak electric field 10 km from the transmitter, we can use the inverse square law.
This law states that the intensity of a wave (such as the electric field in this case) is inversely proportional to the square of the distance from the source.
Here's a step-by-step explanation:
1. Note the initial distance (d1) and electric field (E1):
d1 = 2.1 km, E1 = 350 mV/m.
2. Convert d1 to meters:
d1 = 2100 m.
3. Note the final distance (d2):
d2 = 10 km.
4. Convert d2 to meters:
d2 = 10,000 m.
5. Use the inverse square law formula:
E2 = E1 * (d1²) / (d2²).
6. Plug in the values:
E2 = 350 * (2100²) / (10,000²).
7. Calculate E2:
E2 ≈ 15.435 mV/m.
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