A piece of substance of specific head capacity 450JKg -1 K -1 falls through a...
PHYSICS
JAMB 1999
A piece of substance of specific head capacity 450JKg-1K-1 falls through a vertical distance of 20m from rest. Calculate the rise in temperature of the substance on hitting the ground when all its energies are converted into heat. [g = 10ms-2]
- A. 2/9℃
- B. 4/9℃
- C. 9/4℃
- D. 9/2℃
Correct Answer: B. 4/9℃
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