a rectangular reservoiris is 10.8*3.75 at base water flow into it at the rate of 18m/sec through a pipe having cross section 7.5 cm*45 find the hieght to which of th water reach in 15 mins
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Answer:
water comes out from pipe in 1 sec = 7.5*4.5*1800 = 60750 cm^3 = 6.075 m^3
water comes out from pipe in 30 min = 6.075*30*60 = 10935 m^3
10.8*3.75*rise in level = 10935
rise in level = 10935/ (10.8*3.75) = 10935/40.5 = 270 m
RISE IN WATER LEVEL = 270m
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