A lightning flash is seen in the sky and 8.2 s later the boom of the thunder

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A lightning flash is seen in the sky and 8.2 s later the boom of the thunder is heard. The temperature of the air is 12°C.
(a) What is the speed of sound at that temperature? [Light is an electromagnetic wave that travels at a speed of 3.00 × 108 m/s.]
(b) How far away is the lightning strike?
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Physics

ISBN: 978-0077339685

2nd edition

Authors: Alan Giambattista, Betty Richardson, Robert Richardson

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