Usain Bolt finishes a race and slows down for 4 seconds at an acceleration of -2 m/s2. How much does his velocity change?

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In what direction does an applied force move an object

A0.750 kg aluminum pan is removed from the stove and plunged into a sink filled with 10.0 kg of water at 293 k. the water temperature quickly rises to 297 k. what was the initial temperature of the aluminum pan? the specific heat of aluminum is ca = 900 j/(kgk) and water is cw = 4190 j/(kgk)