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a bullet weighing 8.1g is found to have a kinetic energy of 1 kJ, find its velocity

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KE = 0.5m*V^2 = 1000 J.
0.5*0.0081V^2 = 1000
0.00405V^2 = 1000
V^2 = 246,913
V = 497 m/s.

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