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Physics help

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C[sub]s[/sub] = Q/AΔT

Can someone explain to me what the above formula (from Topic 8 of the Physics data booklet of 2009 and beyond) means? I take A to mean area and ΔT to mean the time passed, but can't really sort out Q and Cs in my head.

Also, when calculating the area of a solar panel in radiation terms, my teacher said that the net area is multiplied by the cosine of the angle that the panel is placed at to find the "effective" area of the solar panel. Why is it necessary to multiply the area with the cosine of the angle?

Last thing - are there any more solar power-related formulae that I should know about?

Thanks (: Edited by Agneisse

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I think this one is the new topic that i just finished..
Cs is the surface heat capacity which is measured in Jm[sup]-2[/sup]K[sup]-1[/sup]
so it's the energy required to raise the temperature of unit area of a planet's surface by one degree

you could actually find a decent explanation and more formula's about the topic from the IB Study Guide book by Tim Kirk Edited by babakren

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