1.

Hail stonces fall from certain height. If only 2% of the mass of the hail stone melt on reacting the ground,, the height from which they fall is ( g = 10 ms^(-2), L = 80 cal/gm and J = 4.2J/cal)

Answer»

33.6 KM
67.2 km
672 km
336 m

ANSWER :C


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