Answer:
Explanation:
Btu of British thermal unit is a unit of heat. The relation between btu/year and watts is given by :
So, is equal to 11 kW. Hence, the correct option is (d).
Mostly gravity voloume and sometimes what it is made of
The height difference is found by
Then the change in potential energy is
ENERGY = POWER X TIME
=60 X 120=7200KWh