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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 +47 N·m is applied to the wheel for 15 s, giving the wheel an angular velocity of +510 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.
A solid sphere of mass 6.0 kg is mounted on a vertical axis and can rotate freely without friction, What is the speed of the block after it has fallen 80 cm
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A particle of ionizing radiation creates 4900 ion pairs in the gas inside a Geiger tube as it passes through. What minimum energy was deposited
The bonds are dated April 1, 2000, and are issued on that date. The discount rate of interest for such bonds on April 1, 2010, is 10%. Illustrate what cash proceeds did Harding Company receive from issuance of the bonds?
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The total kinetic energy in one mole of nitrogen is 4,000 J. what is the root mean-square velocity of an individual particle in the ideal gas
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An unstable particle is at rest and suddenly decays into two fragments. No external forces act on the particle or its fragments. What is the speed of the less massive fragment
The coefficient of static friction is .6 and the ladder makes a 50 degree angle with the ground. Elucidate how far up the ladder can an 800 newton person climb before starts to slip
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