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A trough is 11m long, 5m wide, and 3m deep. The vertical cross-section of the trough...

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Physics


A trough is 11m long, 5m wide, and 3m deep. The verticalcross-section of the trough parallel to an end is shaped like anisoceles triangle (with height 3m, and base, on top, of length 5m).The trough is full of water (density1000kg/m3 andg=9.8m/s2 is the acceleration due togravity).

a) Find the amount of work in joules required to empty the troughby pumping the water over the top.


b) Find the amount of work in joules required to empty the troughby pumping the water out of a spout 2m high.

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