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HW24 - Thevalingam Donald Homework 24 Due midnight Inst...

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Thevalingam, Donald – Homework 24 – Due: Mar 26 2007, midnight – Inst: Eslami 1 This print-out should have 8 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. The due time is Central time. 001 (part 1 of 2) 10 points An animal-rescue plane flying due east at 49 m / s drops a bale of hay from an altitude of 52 m . The acceleration due to gravity is 9 . 81 m / s 2 . If the bale of hay weighs 160 N , what is the momentum of the bale the moment it strikes the ground? Answer in units of kg m / s. 002 (part 2 of 2) 10 points At what angle of inclination will the bale strike? Answer between - 180 and +180 . Answer in units of . 003 (part 1 of 1) 10 points A solid metal ball and a hollow plastic ball of the same external radius are released from rest in a large vacuum chamber. When each has fallen 1 m, they both have the same 1. speed. 2. kinetic energy. 3. change in potential energy.
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