Hi Spandana,
We are going to solve this question by using Bernoulli's equation.
p1V - p2V = (1/2mv2)square - (1/2mv1)square
that is, Delta pV = Delta E
So, Delta Eo = Delta E/m =Delta pV/m = Delta p/ m/V = Delta p / p(density) = 10/800 = 1/80 = 0
After solving this equation we will get the answer => Delta Eo = 0.0125 j
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