Multiple Choice
A 25-g ball is released from rest 80 m above the surface of the Earth.During the fall the total thermal energy of the ball and air increases by15 J.Just before it hits the surface its speed is
A) 19 m/s
B) 35 m/s
C) 40 m/s
D) 45 m/s
E) 53 m/s
Correct Answer:
Verified
Correct Answer:
Verified
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