What is the ball''s impact speed on the ground below

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Reference no: EM1310089

Q1. Estimate the change in COP of your electric food freezer when it is removed from your kitchen to its new location in your basement, which is 8 C° cooler than your kitchen. (Assume that the temperature in the kitchen is 20°C and that the temperature of the interior of your freezer is -5°C.)

Q2. Cannon tilted up at a 30° angle fires a cannon ball at 90 m/s from atop a 10 m high fortress wall. What is the ball's impact speed on the ground below?

Reference no: EM1310089

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