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# physjut - Name P151 Second Midterm Examination All...

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Name P151 Second Midterm Examination All questions have the same weight. Chose any four questions from questions 1-5, and any for questions from questions 6-10. 1. Calculate the moment of inertia of a uniform rigid rod of length L and mass M about an axis perpendicular to the rod (the y axis) and passing through its center of mass. 1 H. Grubin

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Name P151 Second Midterm Examination 2. A solid sphere of radius a = .500 m and mass m= 1 kg, and a solid cylinder with the same radius ’a’ and mass m, roll down identical incline planes of height 100 m. Find 1. the total energy of the sphere at the top of the incline plane ............................ 2. the total energy of the cylinder at the top of the incline plane ............................ 3. the velocity of the sphere at the bottom of the incline plane ............................ 4. the velocity of the cylinder at the bottom of the incline plane ............................ 5. which reaches the bottom of the incline first? ............................ 2 H. Grubin
Name P151 Second Midterm Examination 3. Consider the two masses m 1 and m 2 hanging from a pulley of radius R and moment of inertia I . Find the linear speeds of the masses after m 1 has descended a distance h from its equilibrium position.

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