Doubling the frequency of a wave source doubles the speed of the wave assuing that wavelength remains the same? True or false? W
1 answer:
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Answer:
The average speed of the elevator going down in the abandoned mine is 17.722mph.
Explanation:
If the elevator takes 90 seconds to descend a height of 713m, the average speed of the elevator is:
And if 1m/s is 2.23694mph, the average speed is:
.