The energy driving a windmill each minute equals 2.75 kilojoules. if 1.6 kilojoules of energy is given up by the windmill as thermal energy from friction and electrical resistance how many kilojoules of energy are provided as electricity to the power line?

1.15 Kilo-joules are provided as electricity

Explanation:
The law of conservation of energy states that: "Energy can neither be created nor destroyed, but can convert from one form to another".

Applying this on the givens, we would find that:
driving energy = energy provided as electricity + energy lost as heat
2.75 = energy provided as electricity + 1.6
energy provided as electricity = 2.75 - 1.6 = 1/15 kilo-joules

Hope this helps :)