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A wheel free to rotate about its axis that is not frictionless is initially at rest. A constant external torque of +53 N·m is applied to the wheel for 22 s, giving the wheel an angular velocity of +610 rev/min. The external torque is then removed, and the wheel comes to rest 120 s later. (Include the sign in your answers.) (a) Find the moment of inertia of the wheel. (b) Find the frictional torque, which is assumed to be constant.
Strictly speaking, as more and more skyscrapers are being built on surface of earth, does the day tend to become longer or shorter.
Two capacitors (C1 = 4.00 µF and C2 = 16.0 µF) are now connected in series and to a 9.00-V battery. Find the equivalent capacitance of the combination
the aorta is a major artery, rising upward from the left ventricle of the heart and curving down to carry blood to the abdomen, what is the magnitude (in m/s^2) of the blood's centripetal acceleration
When a high speed passenger train traveling at 113 km/h rounds a bend, the engineer is shocked to see that a locomotive has improperly entered onto the track from a siding and is a distance D = 642m ahead.
A spring is used to propel a 0.400-kg hockey puck across level (frictionless) ice that becomes a rough (not frictionless) ramp inclined at 27°. If the puck reaches a maximum vertical height of 14 cm on the ramp, what distance does it travel along t..
When a 14.4-V car battery delivers a current of 60.0 A, the power consumed on its internal resistance is 36.0 W, what is the internal resistance of the battery
A weight lifter lifts a 420 N set of weights from ground level to a position over his head, a vertical distance of 1.70 m. How much work does the weight lifter do, assuming he moves the weights at constant speed?
A 82 kg student sits on a chari which is soley supported by a solid 0.92 meter long steel rod 0.98 cm in diameter
Consider the conical pendulum, a mass on the end of a string, with the other end of the string fixed to the ceiling. what is the speed (in m/s) of the mass as it swings
A solar concentrating heat exchanger system directs sunlight onto a long,straight pipe. How long is the pipe for steady state, teady flow conditions
A frictionless plane is 9.4 m long and inclined at 31.9. A sled starts at the bottom with an initial speed of 5.03 m/s up the incline. Find the initial speed of the second sled
Lets say if Ahmad walked 6 steps east, 4 steps north, and then 3 steps east; how many steps did he walk
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