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P.H.Y.S.I.C.S P2 D.O.U.B.T.S CIE

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halosh92:

--- Quote from: halosh92 on June 07, 2010, 11:04:36 am ---1st variant
Q5c
could someone give it in more details plz? :)
Q7b
is it going to pass straight? or is it going to deviate at a smaller angle?

one more question: 4 pie L/T^2
if we found the total percentage uncertainity of L/T^2
then dont we have to multiply by 4 ???
thx

--- End quote ---

could anyone solve this??? ??? ??? ??? ??? ???

Meticulous:

--- Quote from: halosh92 on June 07, 2010, 02:02:07 pm ---could anyone solve this??? ??? ??? ??? ??? ???

--- End quote ---

when i get up halla..in 2 hours

sweetie:
cud sum1 plz solve Q5b of the 1st variant

nid404:

--- Quote from: sweetie on June 07, 2010, 02:29:41 pm ---cud sum1 plz solve Q5b of the 1st variant

--- End quote ---

https://studentforums.biz/index.php/topic,8636.60.html

AN10:

--- Quote from: halosh92 on June 07, 2010, 01:51:15 pm ---Q4c: stress= force/area
first find the minimum area of the tube from the graph , the highest stress is 9.5 * 10^8
area= (1.9 × 103) / (9.5 × 108)
= 2 * 10^-6
maximum area is given in the question
so subtract the minimum area from the maximum

--- End quote ---

i dnt get da last step...y do we subtract the areas ???

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