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) 36 m/s
C) 40 m/s
D) 45 m/s
E) 53 m/s
Correct Answer:
Verified
Correct Answer:
Verified
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