Ratio of the new rotational kinetic energy
The rotational inertia of the collapsing spinning star changes to 1/4 its initial value. Determine the ratio of the new rotational kinetic energy to the initial rotational kinetic energy?
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The magnitude of torque on a square loop of area A having current I in a constant magnetic field of magnitude B if the magnetic field is parallel to the plane of the loop is?
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Determine how will the angular acceleration of a disk raise if we were to raise the radius by a factor of 7.48?
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At 20 degrees C a lump of pure copper weighs 25.023g in air and 22.122g when submerged in water (D=0.9982 g/ml). Then suppose the copper is rolled into the 254 cm2 foil, of uniform thickness so explain what will the thickness be in millimeters
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