An object falls because of gravity at a rate of -9.80 ms2 -, Ask an Expert

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Q1. An object falls because of gravity at a rate of -9.80 m/s2 (- sign is indicative of a downward direction) for 10.00 Seconds. If it starts from rest (vo= 0) and its position starts from do= 0.0, where is it 10.00 Seconds later?

Q2. Brass is an alloy made from copper and zinc. A 0.79 kg brass sample at 95 C is dropped into 2.80 kg of water at 5C. If the equilibrium temperature is 6.9 C, what is a specific heat capacity of brass?

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