Where is it stated/indicated that the line d is a tangent?
There is no right angle sign on the diagram indicating this and it isn't stated elsewhere on the sheet.
1. Homework Statement
The question sheet is the attached .jpg file
2. Homework Equations
No equations as such, however we are doing radian measure at the moment if that helps at all. Angle measurements do not have to be in radians, they can be in degrees.
3. The Attempt at a...
Ok, I was just trying to over complicate things, as usual. Now that I look back at the problem I see how simple it is. Thanks for your help, no doubt I will call on it again some time in the future.
No it isn't, -273°c is. Can you please explain the relevance of this though? I just chose 0°c as a point from which the blocks would get heated. If you convert the temperatures to kelvin you get exactly the same results.
[SOLVED] Heat Problem
The question is:
The only equations known are Q=mcΔT, and Q=ml
Where Q= energy in joules. m=mass in kg, c= specific heat capacity [to 3 decimal places], ΔT= the change in temperature in either kelvin or Celsius, l= latent heat [also to 3 decimal places]
However I...