Solve the problem.A water trough has a semicircular cross section with a radius of 0.25 m and a length of 5 m (see figure). How much work is required to pump water out of the trough when it is full? Round to two decimal places when appropriate.
A. 12,250 J
B. 255.21 J
C. 61,211.72? J
D. 510.42 J
Answer: D
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