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Here is the problem which I am struggling on, please help me!
Problem: What is the rotational kinetic energy of the earth due to its rotation about its own axis? Treat the earth as a uniform sphere. Moment of inertia, I, for a uniform solid sphere with axis of rotation through the center is (2/5)MR2.
Please use great detail in explaining the solution. Thanks.
A disk with moment of Inerti I= 10 kg*m^2 is inititally at rest. A torque of 100Nm is applied tot he disk. What is the angular acceleration of the disk
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