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  1. Thought blocker

    Nah! :P

    Nah! :P
  2. Thought blocker

    Physics: Post your doubts here!

    29) Use dsinθ = nλ from first info find d Then again use that formula and find θ when n is 2 After that subtract it from 15.4 degree you'll get C as the answer :) 35)
  3. Thought blocker

    Physics: Post your doubts here!

    7) Area of the v-t graph is displacement so 10 above and -6.25 below.. add them = 3.75m 14) this one is tricky, utilize the kinematics equation V^2 = U^2 + 2as so the first drop is u^2 = 0 + 2ah the rebound is 0 = v^2 - 2a(h/2) = v^2 - ah so v^2/u^2 = 1/2 v/u = 1/squareroot 2 15) 16) Power...
  4. Thought blocker

    Physics: Post your doubts here!

    5) We know S = d / t = 40 / 2.5 = 16 m/s Uncertainty in speed = (uncertainty in distance + uncertainty in time) x speed --------"--------------- = ( (0.1/40 ) + (0.05/2.5) ) x 16 = 0.36 ≈ 0.4 (1dp) = C 9) For projectile motion, the vertical acceleration is the same throughout and is equal to g...
  5. Thought blocker

    Physics: Post your doubts here!

    3) the derived unit of a volt is defined with units W.A-1, and the derived unit of a watt (W) is defined in J.s-1 Now do it your self ;) 5) O.o Uncertainty unique111
  6. Thought blocker

    Physics: Post your doubts here!

    I will come tomorrow, gotta sleep ._.
  7. Thought blocker

    ~~jokes?? in here?? really??

  8. Thought blocker

    ~~jokes?? in here?? really??

  9. Thought blocker

    ~~jokes?? in here?? really??

  10. Thought blocker

    c u ;)

    c u ;)
  11. Thought blocker

    kale exam no time su 6 ?

    kale exam no time su 6 ?
  12. Thought blocker

    Physics: Post your doubts here!

    well it depends on extension :)
  13. Thought blocker

    As physics p1 MCQS YEARLY ONLY.

    15) since torque is equal to force*distance, the distance moved by the spindle will be the torque, i.e L/4 means, WL/4 and will always be clockwise in this condition P.S. this was a stupid question just remember the fact that the distance moved by the spindle will be multiplied by the weight of...
  14. Thought blocker

    Physics: Post your doubts here!

  15. Thought blocker

    Physics: Post your doubts here!

    https://www.xtremepapers.com/community/threads/physics-post-your-doubts-here.9860/page-523#post-820191
  16. Thought blocker

    Physics: Post your doubts here!

    We apply the formula :¬ 1/2 * F * extension so 1/2 * 25 * 0.2 = 2.5 J
  17. Thought blocker

    As physics p1 MCQS YEARLY ONLY.

    momentum is conserved so it should remain as mv now, principleof conservation of momentum. mv= 2m(v) bracketed v is unknown. By calculation, unknown v would be half the original v, v/2. KE= 1/2 2m (v/2)2 observe here, it is 2m not just m. So answer is A.
  18. Thought blocker

    As physics p1 MCQS YEARLY ONLY.

  19. Thought blocker

    Was jk

    Was jk
  20. Thought blocker

    LOL...

    LOL https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-frc3/t1.0-9/995547_10151697402351314_1103001487_n.jpg
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