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An electric pump is used to pump water ...

An electric pump is used to pump water to fill a water tank of volume `30 m^(3)` is 20 minute. The pump is on the ground floor and the tank is on the terrace of the builiding. The centre of the tank is at 40 m above the ground . How much electric power is consumed by the pump, in filing the tank , if the efficiecy of the pump is 50 ?
`( g = 10 m//s^(2)` and density of water ` 10 = ^(3) kg //m^(3)`)

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