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A 11-g bullet is shot vertically into an 1.5-kg block. The block lifts upward 4.1 mm...

A 11-g bullet is shot vertically into an 1.5-kg block. The block lifts upward 4.1 mm (see the figure). The bullet penetrates the block and comes to rest in it in atime interval of 0.0010 s. Assume the force on the bullet is constant during penetration and that air resistance is negligible. Find the initial kinetic energy ofthe bullet. Express your answer in J

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