chas8495
03.12.2020 •
Mathematics
55. Finding the Depth of a Well. Two seconds after a
chlorine tablet has been dropped into a well, a splash isheard. The speed of sound is 1100 ft/sec. How far is the
top of the well from the water?
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Ответ:
=> 7f - 7 =45
=> 7f = 45 + 7=52
=> f = 52/7
Hope it helps !!!