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Physics Discussion HERE ONLY!
qwert101:
--- Quote from: omar777 on June 05, 2009, 12:53:22 pm ---guys just by looking at the ray you can see it is bending away the from the normal... its impossible that the answer is in the '20s' it was 58 point something :)
and i think the critical angle was a bit more than 42 because when the incident ray was 42, the refracted ray was a bit less than 90... so i wrote 43 :-\
--- End quote ---
same
....:
--- Quote from: MR.BooMBastiC on June 05, 2009, 01:58:48 pm ---AND THE CORRECT FRACTION IS::1/8
WAT DID U GUZS WROTE 4 THE 1 ST QUESTION
--- End quote ---
i wrote vernier calipers...although i know of a micrometer..dont really know how it works..but i do calipers..so wrote tht..i messed up in the milk and water part..thts the only q im sure busted in, rest was good enough
IGCSE nightmare:
I got the fraction 1\2 too!
Because it has a slower speed which means a heavier mass, right?
Kim:
i wrote half as well
but i did a huge calculation
i used the kinetic and efficiency formula
wat was the answer to the question b4 it?half the mass?i just divided 7400 by 2
sweetie:
i used mgh=0.5mv2 to find da mass
and i just wanna no hw u people found ur values of mass?????????
i think 25m was given and we had 2 use it, but most ppl didnt
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