# A ball is being launched into the air. 21 feet away from the launch site is a camera. If the ball is travelling vertically at 13 feet per second, what is the rate of change of the angle of elevation from the camera to the ball when the ball is 41 feet off the ground? (Do not include units in your answer, and round to the nearest hundredth.)

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A ball is being launched into the air. 21 feet away from the launch site is a camera. If the ball is travelling vertically at 13 feet per second, what is the rate of change of the angle of elevation from the camera to the ball when the ball is 41 feet off the ground? (Do not include units in your answer, and round to the nearest hundredth.)

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