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Assume you want the current through a 1.85 H inductor in series with a 0.25 ohm resistor to be reduced to 0.100 percent of its original value.
Part (a) Determine how much time is required to do this?
Part (b) Approximate this calculation in the following way: round the time this took divided by the RL time constant to an integer. Then calculate the time it took.
Part (c) Find by what percent are the times different?
the gas at the center of the sun is 38.0 hydrogen h and 62.0 helium he by composition at temperature of 1.50x107 k and
In a single-slit experiment, light of wavelength 500 nm is used to produce a diffraction pattern on a screen 4.0 m away. what is the slit width
A charged line of linear charge density ? has been bent into a circular arc of radius r that makes an angle ? with its center. (A). Find the magnitude of the electric field at the center of this arc. (Does your result make sense, what should it be..
A 10.0 kg crate is pulled up a rough incline with an initial speed of 1.5 m/s. The pulling force is 100. find the work done by the Earth's gravity on the crate
You are piloting a spacecraft whose total mass is 1130 kg and attempting to dock with a space station in deep space. What is the initial thrust exerted on your spacecraft by the retro-rocket? What is the thrust's direction (positive if in the direc..
The speed of an alpha particle is determined to be3.45×106 m/s. If all of its kinetic energy isacquired by passing through an electric potential, what is the magnitude of that potential?
Galaxy mergers in a rich cluster could impede their use as standard candles over time as they tend to brighten. What is the mean number density of galaxies within the half mass radius
What is the Carnot efficiency of a heat engine operating between the temperatures of 300 degrees C (573 K) and 100 degrees C (373 K)
a rabbit runs in a straight line with a velocity of 1.6 ms for a period of time rests for 9 s and then runs again along
The masses of the javelin, discus, and shot are 0.80 kg, 2.0kg, and 7.2 kg, respectively, estimate the average force exerted on each object during the throw
Suppose we have an isotropic substance, for which the coefficient of linear expansion, α(alpha), is the same in all directions. Show the volume expansivity β(beta)=3α.
in electronic equipment wires that carry equal but opposite currents are often twisted together to reduce their
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