3. A television camera is positioned 4600 ft from the base of rocket launching p

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3. A television camera is positioned 4600 ft from the base of rocket launching pad. The angle of elevation of the camera has to change at the correct rate in order to keep the rocket in sight. Also, the focusing mechanism has to take in account the increasing distance from the camera to the rising rocket. Let's assume that the rocket rises vertically and its speed is 680 fts when it has risen 2600 ft. If the television camera is alvays aimed at the rocket, how fast is the angle of elevation of the camera changing at that moment? 4 A rock is tossed into a stream causing a circular ripple of water whose radius increases at the constant rate of 0.5fts. How fast is the area contained inside the ripple changing when the radius is 22 feet?

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