Homework Help: physics 11 grade

Posted by Parker on Sunday, March 13, 2011 at 10:00pm.

A hiker shouts toward a vertical cliff 789.5m away. The echo is heard 2.1s later. The wavelength of the sound is 12.3 m.

What is the speed of the shout?

What is the frequency?

What is the period of the wave?

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