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Physics: Post your doubts here!

Q13 torque with 0.1m=3Nm,so by cross multiplying find torque with 0.15m,that is=4.5Nm. then find force for both the torques by F=torque/diameters in metres.... add both the forces ,that's equal to tension. Q15 mass is inversely propotional to velocities, so if velocity of 2kg trollry =2m/s...
- sara kamal
- Post #5,389
- Jun 3, 2013
- Forum: A-Levels
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Physics: Post your doubts here!

http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w10_qp_12.pdf please let me know hw to do, Q8,Q25,Q27 in the above variant..
- sara kamal
- Post #5,388
- Jun 3, 2013
- Forum: A-Levels
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Physics practical tips

guys please let me know wat do they mean when they ask"justify the number of significant figures you have given to write a certain value to record that value as accurately as possible"???I just wanna ask hw do we answer such questions,wats the correct format?
- sara kamal
- Post #114
- May 28, 2013
- Forum: A-Levels
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How was Chemistry Paper 32?

please tell wat did u guys wrote about the error of balance???and wether the student was correct while taking double volume of acid?i will be glad....and wat was the answer of last question?
- sara kamal
- Post #6
- May 27, 2013
- Forum: A-Levels

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