Hakeem throws an 8.50 g ball straight down from a height of, Ask an Expert

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Q1. A 560 g block of ice is cooled to -78 °C and is then added to 165 g of water in an 80-g copper calorimeter at a temperature of 25 °C. Determine the final temperature of the system consisting of the ice, water, and calorimeter.

Q2. Hakeem throws an 8.50 g ball straight down from a height of 2.0 m. The ball strikes the floor at the speed of 7.5 m/s. What was the initial speed of the ball? Suppose that air resistance is negligible.

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Category:- Physics
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