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1. A 0.150 kg ball is thrown at 20.0 m/s at an angle of
2. A pendulum is made with a 0.250 kg bob and a 0.800 m light string. The pendulum is displaced through an angle of
4. A 7.90 kg block rests over a hole in a table. A
Mass 1 (0.50 kg) slides down a frictionless surface starting from rest at a height of
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