Recent content by asnali4u

Thanks for the help. I will try this.

so how can i use volume or gal in the output equation?

Output = power = work/time Here work will be force x distance? To be honest i am not familiar with the unit "gal". My lecturer did not tell us about this.

An electric motor with an efficiency of 78% drives water pump. What input power is required of the motor (in kW) to pump 22250 gals of the water from the lake to a storage tank 65 feet above the lake surface in 4 hours? Attempt : i know that efficiency = output/input but i don't understand, how...