Mathematics, 04.01.2020 02:31, C4171

Why must integration be used to find the work required to pump water out of a tank?
a. different volumes of water are moved different distances.
b. water from the same horizontal planes is lifted different distances.
c. integration is necessary because the acceleration of gravity changes at each level.
d. integration is necessary because w = mgy.

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Why must integration be used to find the work required to pump water out of a tank?
a. differ...