H2P-54
Power
H2 Physics · JC 1 · Medium · Power
Water of density 1000 kg m⁻³ flows out of a horizontal pipe of cross-sectional area 4.0×10⁻⁴ m² at speed 6.0 m s⁻¹. Assuming all the pump’s useful power goes into the water’s kinetic energy, what is the minimum power output of the pump?
- 43 W
- 24 W
- 72 W
- 96 W
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