Question

consider one kg of water in a waterfall which is following down from a height of 100 metre at the bottom of the fall it joins a river the downstream velocity of which may be assume negligible. neglecting any energy exchange between the water and the surrounding calculate. (a) potential energy top of the falls (b)kinetic energy just before a strike (c) the change in temperature of the water when it enters the river. example

Answer 1

Answer:

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