Question

A man throws over a cliff and hears it strike at the bottom in 8 second. The temperature is 25 C. what are the two times ; the time that the stone travels and the time that sound travels ? what is the height of the cliff in meters?
what is the speed of sound at 25°C? If that speed is s, then

If the cliff has height, it hits the bottom at time t, where 4.9t^2 = h. So,

h = (8-√(h/4.9))*s

Plug in your speed s, and find h.

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