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i got a question for physics paper 1

Thread starter igs_beast
Start date Jun 4, 2013

Jun 4, 2013

#1

igs_beast

in this paper the first question please help http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Physics (0625)/0625_s11_qp_12.pdf
i got it a 132 and in the answers its written 66 so how is it possible

Jun 4, 2013

#2

crab cake

the equation for finding echo is 2*distance/time........ that means you divide the distance you found which was 132 by 2.... giving 66.......

Jun 4, 2013

#3

igs_beast

oh shi2 thnque

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