speed of sound in water
The speed of sound in water is about 1480 m/s. Find the frequency of a sound wave such that its wavelength in water is the same as the wavelength in air at 20° C of a sound wave of frequency 1000...
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09/16/14
Please help with 5th grade math word problem
In the 1980's the Northern white rhinoceroses population decreased by 485 from what it was in the 1970's. By the 1990's the population increased to 2 more than twice the population in the 1970's....
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