You are Here: Home >< Physics

# AS Physics Question... Watch

1. A solar panel attached to the roof of a house is used to heat water from 5 degrees to 45 degrees.
If the water flows through the panel at a rate of 0.012kg/s, calculate the heat gained per second by the water. Assume the specific heat capacity of water is 4200 J/kg/K.
2. Using the formula energy transferred=mass*specific heat capacity*temperature change

E/t=(0.012*4200*40)/t where E is energy (in this case thermal, and t is time)

But here t=1 second so E/1 = (0.012*4200*40)/1=2016J/s (also meaning the power of the solar panel is 2016W)
3. Thank you very much, I understand now

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: December 12, 2010
Today on TSR

### Oxford interview invitations

When can you expect yours?

### Official Cambridge interview invite list

Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• Poll
Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.