(II) A falling rock has kinetic energy KE just before strikingthe ground and coming to rest. What is the total change inentropy of rock plus environment as a result of this collision?

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A: Average force from Work done W=FavgdFavg=Wd=∆Ekd=12mv2f-v2id=12910 kg0-1.3 ms20.285 mFavg=2698 N

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Q: i 57 In Fig. 9-9, a ball of mass m = 60 g is shot with speed v; = 22 m/s into the barrel of a spring…

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A: Given data: Initial speed of car, u=1.8 m/s Mass of the car, m=910 kg Collapsing distance, S=0.225 m…

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A: 47) Initial velocity (u) = 8 msLet the mass = m final height after rebound (h) = 0.25 m

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A: The mechanical energy of a system is the sum of the kinetic and potential energy of that system.

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A: Given as, vA=5 ft/sy=132x2H=8 ft

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Q: (!) THE FOLLOWING QUESTIONS ARE BASED ON THE INFORMATION GIVEN BELOW. The lift of an observatory…

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