A conventional, coal-fired power station 'loses' 9% of its energy when
the fuel is first burnt. For every I MJ
of stored chemical energy in the coal

how much is 'lost' at this stage

how much remains?

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.

Due in 40 explain in terms of frame of reference if you’re inside a moving train everything on the outside can seem to be moving

Suppose the house in question 3 is located in cleveland where the annual average solar flux is 160 w/m2 . if 10 m2 of solar panels operating at 20 percent efficiency were installed on this house to collect and store solar energy in the form of hot water: