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hammered fish
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This really is bulls**t. Anyway, they're surely gonna ask a question on pressure/volume of the balloon (BOOMERANG), which is handy cos there is a similar question in the ocr text book (q2 pg. 104). Can anybody give us some tips, we have a crap teacher who is clinically insane!!!
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elpaw
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You're describing probably all physics teachers...

(copied)

Advice:

learn PV=nRT or NkT etc bound to come up with balloon section;
learn diffraction & resolution: n lambda = b sin theta, (is that how you spell lambda?);
learn refraction: n1 sin theta1 = n2 sin theta2;
learn red shift with universe expantion (size now/size then = 1+z);
learn E~kT and E=hf for that graph of wavelength v temp.
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