Qualification > Sciences
Physics Discussion HERE ONLY!
MR.BooMBastiC:
MADEE: thats right!!!!!!!!!!!!!!!
there was no efficiency it was simple math
cherrip:
both work, E=pt and efficiency...i first thought it was simple math to mutily 10% times previous answer but wen i saw ''include any equations, i realised there was a rule they wanted which could not only be (percentage X answer) :-\...even though both get the same answer...did u guys gert th fraction as 1\8??
MR.BooMBastiC:
i got 1/8 and its 100% correct
cherrip:
r u sure its correct?? cz sm ppl say we should hav doubled th mass cz slower winds are heavier and tht way the fraction would be 1\2 :S ...did u ask any teacher or anyone other than students??
girl_92:
--- Quote from: cherrip on June 06, 2009, 02:15:14 pm ---r u sure its correct?? cz sm ppl say we should hav doubled th mass cz slower winds are heavier and tht way the fraction would be 1\2 :S ...did u ask any teacher or anyone other than students??
--- End quote ---
i did not get 1/8 i got 11/2 according to me wen the wind speed is half the mass displace will also be half so that brings it to a ratio of 1:2
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