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Please answer all 5 questions with steps . must answer ALL QUESTIONS ! please and thanks

1. A 5,000 g block is sliding along a rough horizontal surface with an initial velocity of 250 cm/s and final velocity of 325 cm/s. Calculate the net work done on the block?
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Change m Kintus Ene KE, Wort Done KEと 2-S OYC 3) Kinetic Ene 1079.3乂 2.

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