Physics

Problem

Water of density

1000\,\text{kg m}^{-3}

is supplied to a turbine at the rate of

20\,\text{m}^3\!\,\text{s}^{-1}

from a reservoir

50\,\text{m}

above it. If the turbine–generator set works with an efficiency of

75\%

, calculate the electrical power delivered.