Thursday
March 26, 2015

Homework Help: MATH

Posted by Anonymous on Wednesday, September 15, 2010 at 8:07pm.

Is there a shorter way to answer this question?

Radio waves ina vacuum travel a distance equal to seven times the circumference of earth in 1 s. If the radius of Earth is 6 318 138.7m, what is the speed of the radio waves in kilometres per hour?

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