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An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?
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An object of dimensions 50 cm x 40 cm x 0.20 cm has a mass 60g. find its density in g/cm3 and kg/ m3
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In a system, when potential energy decreases, then entropy also decreases. true false
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A steel bridge is 500.0 m long when the temperature is 25.00 OC. What is the length on a cold day wh...
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