8. When a falling hailstone is at a height of 2.00 km its mass is 2.50 g.
a. What is its potential energy?
b. Assuming that all of this potential energy is converted to latent heat during the fall, calculate the mass of the hailstone that would melt while falling.
c. Calculate the mass of the hailstone on reaching the ground. GPE = m × g × h
[Specific latent heat of fusion of ice = 335 000 J/kg and the acceleration due to gravity to be 9.8 m/s2].
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sorry i don't know..,..
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