H2P-46
Power
H2 Physics · JC 1 · Easy · Power
A pump draws oil of density 850 kg m⁻³ through a pipe of cross-sectional area 4.0 × 10⁻⁴ m² at a steady speed of 3.0 m s⁻¹. Assuming all the energy supplied goes into the kinetic energy of the oil, what is the power output of the pump?
- 4.6 W
- 9.2 W
- 13.8 W
- 2.3 W
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