Product of frequency and time period of 5m
pendulum is equals to
(a) 1/5
(b) 1
(c) 5 (d) zero
Solution??
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Explanation:
A pump empties a swimming pool in 40 minutes at the rate of 1400 L/min. If the rate of pumping is 2000 L/min, how long does it take to empty the swimming pool?
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Answer:
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