### Magnitude of the centripetal acceleration of the satellite

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Q1. A pipe open at one end has a fundamental frequency of 256 Hz. A second pipe,identical to first pipe, is shortened by cutting off a portion of the open end. When both pipes vibrate at their fundamental frequencies, a beat frequency of 12 Hz is heard.

Work out how many centimetres were cut off the end of the second pipe.

Q2. An Earth satellite moves in a circular orbit 557 km above Earth's surface with a period of 95.59 min. What are (a) speed and (b) magnitude of the centripetal acceleration of the satellite?

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