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a) Calculate the angular velocity of a 27.0 cm radius car tire when the car travels at 12 m/s.
b) A 40-Watt light bulb operates for 2 hours. Assuming no energy losses due to heat how much light energy did the light bulb put out during this time?
c) Worker A lifts a 10kg box up a distance of 2m in 1.5 seconds. How much power did Worker A generate?
A star ship moving toward Earth with a speed of 0.78 c launches a shuttlecraft in the forward direction. The shuttle, which has a proper length of 12.3 m, is only 6.27 m long as viewed from Earth. What is the speed of the shuttle relative to the star..
Complete the following table by calculating DU, W, and Q (including the algebraic signs) for each of the four steps and for the whole process.
question a 6.5-microf capacitor is connected in series with 4.2 mo resistor and this combination is connected across an
How far apart must two protons be if the Coulomb force between them is equal to the weight of a single proton at the earth's surface? Assume that the two protons are far removed from any other charges. The charge of the proton is 1.60x10 -19 C, an..
A transformer is designed to step down the 209 volts to 30 volts. If there are 446 turns on the input coil, how many turns should there be on the output coil
An object 0.640 centimeter tall is located 15 centimeter to the left of the vertex of a concave spherical mirror having a radius of curvature of 24.5 centimeter. Obtain the position of the image
Neglect air resistance, as well as any energy absorbed by the pole, and clerify her altitude as she crosses the bar.
A 24 Volt battery is in series with a switch, a 0.35 H inductor, and a 20 ohm resistor. Obtain the potential differences across the inductor
An object at rest on a flat, horizontal surface explodes into two fragments, one five times as massive as the other one. The lighter fragment gains the velocity of 10.0m/s in the left direction right after the explosion.
A machinist turns the power on to a grinding wheel, at rest, at time t = 0 s. The wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 66 rad/s. The wheel is run at that angular velocity for 37 s and then power is shu..
A ball of mass 0.120 kilogram is dropped from rest from a height of 1.25 meter. Find what impulse was given to the ball by the floor
What if the plug were iron and the ring brass? A brass plug is to be placed in a ring made of iron. At 20 C, the diameter of the plug is 8.787 cm and that of the inside of the ring is 8.777 cm. They should both be brought to what common temperature i..
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