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  1. G

    Physics P22, How was it!

    acceleration is produced by a net force, not total force, and if acceleration was upwards then how are both the forces acting downwards :/ it means that there was a larger force acting upwards and a smaller force acting downwards, due to which there was a net force upwards and hence acc...
  2. G

    Physics P22, How was it!

    there was no beta or alpha molecules in the equation..and gamma radiation is in the form of energy only...so it was deff gamma.
  3. G

    Physics P22, How was it!

    yep (y)
  4. G

    Physics P22, How was it!

    gamma
  5. G

    Physics P22, How was it!

    i dunno...but the weight would still act downwards opp to the direction of acc. so i think we have to subtract the weight. hope ya do.
  6. G

    Physics P22, How was it!

    you subtracted the f spring - weight to get f net and then used a = f / m ??? yep i think...dont remember though
  7. G

    Physics P22, How was it!

    i got 3.7something :) close!
  8. G

    Physics P22, How was it!

    what was the value for you acceleration of the mass on the spring??
  9. G

    Physics P22, How was it!

    24 hours bad...rule he :P
  10. G

    Physics P22, How was it!

    i think its gonna be pretty high...maybe a 46?
  11. G

    Physics P22, How was it!

    discussion after 24 hours :)
  12. G

    Physics: Post your doubts here!

    oops sorry
  13. G

    Physics: Post your doubts here!

    emkay here ya go...
  14. G

    Physics: Post your doubts here!

    omg thanks! :D
  15. G

    Physics: Post your doubts here!

    8 a iii ....thnx and good luck :D
  16. G

    Physics: Post your doubts here!

    8) just use proportionality here... a - temp at 0 degrees = 3900 ohms the voltmeter reading on V = 1 Volts and becuz the sum of the potential pds = the emf of the battery therefore the pd across the thermistor is 1.5 - 1 = 0.5 V if 3900 ohms >> 0.5 V then x ohms >> 1 V x = 3900 / 0.5 = 7800...
  17. G

    Physics: Post your doubts here!

    3b) ok here first you need to have a scale lets say : 1 ms-1 = 1 cm and the vertical and horizontal velocities are perpendicular to each other now draw 4.o cms >> v (horizontal) 6.2 cms >> v (vertical) now complete the triangle and measure the length of the line >> the resultant velocity...
  18. G

    Physics: Post your doubts here!

    here emkay answered this... it says clearly, (for time t=1.0sec) and in terms of A. 1. the displacement due to wave T1 alone = put your finger on t=1.0 sec then drag it down and see where it touches the wave T1 alone that would be -0.5A 2. the displacement due to wave T2 alone = you must have...
  19. G

    Physics: Post your doubts here!

    apply the formula P = V^2 / R for each. V is always 240V. scenario 1 is pretty obvious. here i drew the circuits for each of them, i ignored the branch for every open switch. 2) switch 2 is closed. now B is in parallel with a wire which has negligible resistance, and because in parallel...
  20. G

    Physics: Post your doubts here!

    the speed of the wave will remain constant. therefore from the formula v = f . lambda you can say that : lambda = v / f , and becuz v is constant, lambda is inversely proportional to frequency. We know that (frequency)^2 is directly prop. to intensity. Therefore if the wavelength increases >>...
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