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Recent content by hassan.arif.12

  1. H

    thank you so much man!! that was a great help....

    thank you so much man!! that was a great help....
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    Physics Paper 12

    help!!!! Q) A steel spring has a spring constant of 150 N m–1. When a 25 N weight is hung from the spring, it has a stretched length of 55 cm. What was the original length of the spring? A 0.38 m B 0.49 m C 0.61 m D 0.72 m
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    Physics: Post your doubts here!

    help!!!! Q) A steel spring has a spring constant of 150 N m–1. When a 25 N weight is hung from the spring, it has a stretched length of 55 cm. What was the original length of the spring? A 0.38 m B 0.49 m C 0.61 m D 0.72 m
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    Physics: Post your doubts here!

    For simplicity's sake, let's assume the distance travelled is 1,200 km. outbound - 600 km / h return - 400 km / h total time: 1 + 1.5 = 2.5 hrs 1200/2.5 = average speed
  5. H

    help!!!please

    no.. i thought the same but its freezing...:/
  6. H

    help!!!please

    Which process does not require energy to be supplied? A boiling B evaporation C freezing D melting
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    help!!!please

    The first artificial radioactive substance was made by bombarding aluminium, Al 27 13 , with α-particles. This produced an unstable isotope of phosphorus, P 30 15 . What was the by-product of this reaction? A an α-particle B a β-particle C a γ-ray D a neutron Q38...
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    Physics 9702 /22

    well it was a projectile motion so the horizontal velocity was there even if vertical velocity was zero.. so all the k.e was not converted to p.e as there was still some k.e due to horizontal velocity..
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    Physics 9702 /22

    how??
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    Physics 9702 /22

    i got it 6.. i know its wrong how did u guys get it as 4??
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    Physics 9702 /22

    how to find the resistance in that electricity question
  12. H

    9709 physics paper 22. how was it and what to do with the electricity question

    i just messed up the electricity..how to find the resistance X using Kirchhoff`s law?
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