Hi i am currently studying to be a teacher (biology) as part of this training i have to also know a certain amount about physics. I have been given this question as part of a revision excersise i was just wondering if any one could help me out, or at least point me in the right direction.

A solar panel of area 2 m2 absorbs solar energy at the rate of

950 W/m2. Assuming that all the energy is used to heat water

in a 110 litre tank how long would it take for the water

temperature to increase from 15C to 65C?

Any help any one could give would be much appreciated