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  1. Thought blocker

    Physics: Post your doubts here!

    21) use the formula for E E = F L / Ax rearrange to get the ratio x / L on one side (change in length / original length) you'll get is x / L = F / E A : Where - (A = pi r ^2 ) = 20 / 2 * 10^(11) * pi x (2.5 * 10^(-4))^2 = 5.1 * 10^(-4) multiply this by a 100 to get the percentage 5.1 x 10^-4 x...
  2. Thought blocker

    han :P

    han :P
  3. Thought blocker

    Physics: Post your doubts here!

    14) 11) Change in P = mv - mu (here u is -v) so mv - (-mv) = 2mv of course towards left coz it was moving towards right after colliding with wall, it would move to left :)
  4. Thought blocker

    I know, I mean exams have 11 days left, so go read my notes :P

    I know, I mean exams have 11 days left, so go read my notes :P
  5. Thought blocker

    What do I tell you :) ?

    What do I tell you :) ?
  6. Thought blocker

    same here :(

    same here :(
  7. Thought blocker

    How is Chem going :) ?

    How is Chem going :) ?
  8. Thought blocker

    Physics: Post your doubts here!

    8) Pi = Pf Pi = 2mu - mu =mu So check for each condition Pi = Pf ? so in A,C and D Pi = Pf but C and D are inelastic collision so answer is A :) 12) the torque between the pulley Q and P in the upper wire is the torque at Q. as it is causing the driving force for Q. i.e T=F*d F= T/d...
  9. Thought blocker

    Physics: Post your doubts here!

    8) start would be stationary, and will be than constt, so A :)
  10. Thought blocker

    ok :)

    ok :)
  11. Thought blocker

    Physics: Post your doubts here!

    8th try karo, nai aye to kal shamjha dunga :) ty for understanding me :)
  12. Thought blocker

    Physics: Post your doubts here!

    P PLEASE YOUR DOUBTS TOMORROW I AM VERY SAD :(
  13. Thought blocker

    ??

    ??
  14. Thought blocker

    Physics: Post your doubts here!

    8) I will solve it later. 20) Simple yaar, take a look on book, that middle thing is work done.. 24) The amplitude increases 2 times so intensity increases by 2^2 = 4 times The frequency decreases by 1/2 so intensity decreases by (1/2)^2 = 1/4 times So net change in intensity= 4 * (1/4) = 1 So...
  15. Thought blocker

    :) Best of luck :)

    :) Best of luck :)
  16. Thought blocker

    6 months ^.^

    6 months ^.^
  17. Thought blocker

    [103406:Adeena Shamshir] <3

    [103406:Adeena Shamshir] <3
  18. Thought blocker

    ty :P

    ty :P
  19. Thought blocker

    Pic is also uploaded :)

    Pic is also uploaded :)
  20. Thought blocker

    Physics: Post your doubts here!

    B Bro please keep it for tomorrow, I am not feeling well at all :(
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