Test 2General Physics I PHYS 161 Show all work. No work shown means no credit gi

Question

Test 2General Physics I PHYS 161 Show all work. No work shown means no credit given. Please i 10 November 2017 indicate your answers clearly. You may use a formula card. Part I. Short answer and circle the response that makes the statement true. I.(2) In a collision, linear momenturn (is, is not) always conserved. 2.02) In a collision, kinetic energy (is, is not) always conserved 3.(2) Write out the generalized work - energy theorem seneralized work -ener 4.(2) Work done by friction (is, is not) conservative. 5.02) Newton's Laws of Motion consist of ( 1, 2, 3, 4) different laws. 6.(12) Write out Newton's Laws of Motion. (3) Water lows over Victoria Falls, wlich is 100 m high, at an average rate of 1.4x10kgs. Ifall e potcntial cnergy of the water were converied into clectric energy, how much power could be produced these Falls: 4 xIO

Explanation / Answer

Work done

W=mgh

Power output

P=W/t =mgh/t

P=(m/t)*g*h =(1.4*106)*9.81*100

P=1.3734*109watts

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