Solve.The period of vibration P for a pendulum varies directly as the square root of the length L. If the period of vibration is 3.5 sec when the length is 49 inches, what is the period when L = 5.0625 inches?
A. 1.125 sec
B. 4.5 sec
C. 4 sec
D. 4.25 sec
Answer: A
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