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  1. Thought blocker

    Physics P-34 GT.

    I don't remember it.. I just remember we have to change the theta just we need to ensure that wire doesn't get bend.
  2. Thought blocker

    Physics: Post your doubts here!

    17) The question is asking what is the rate does the energy provided to the system by the motor. So this shows that the motor is actually supplying some of its power. You must also know that the mass of the elevator is greater that the mass of the heavy weight because the question already stated...
  3. Thought blocker

    Physics: Post your doubts here!

    Answer is B from my side... But let her answer if it is A or B
  4. Thought blocker

    Physics P-34 GT.

    :thumbsup: Its valid :)
  5. Thought blocker

    Physics: Post your doubts here!

    No.. case i) You had 3 strings with load W so imagine if you have 3 students and 1 chocolate What is the ratio of getting chocolate to each child ? Obviously 1/3 so same over here 3 strings = 3 students W load = 1 chocolate so load (Force) on each spring will be W/3 case ii) You have 2...
  6. Thought blocker

    Physics: Post your doubts here!

    Okay so we add here same as we do in circuits :¬
  7. Thought blocker

    Physics: Post your doubts here!

    Circuit Thingy yaar... lemme send you snap!
  8. Thought blocker

    Physics: Post your doubts here!

    Tell me what exactly you cannot figure out in Q23 ?
  9. Thought blocker

    I am fine with my avatar ;) Thanks though!

    I am fine with my avatar ;) Thanks though!
  10. Thought blocker

    Physics: Post your doubts here!

    Sorry, but I am not able to figure out what you said.. This chemistry had sucked my memory :(
  11. Thought blocker

    I just posted two comments as XPC does not allow more than 140 words in comments. :) If more...

    I just posted two comments as XPC does not allow more than 140 words in comments. :) If more doubts please ask :)
  12. Thought blocker

    now it is given that collision is inelastic, it will lose some of its momentum to the wall.. so...

    now it is given that collision is inelastic, it will lose some of its momentum to the wall.. so now change in momentum will be less than 4mv but cant be less than the initial momentum... so the answer is C.
  13. Thought blocker

    initial momentum of the ball is 2mv before collision... if collision was perfectly elastic one...

    initial momentum of the ball is 2mv before collision... if collision was perfectly elastic one, all the momentum would have been gained by the ball... and this would have made the change in the momentum equal to 4mv.. 2mv-(-2mv)...
  14. Thought blocker

    Easy

    Easy
  15. Thought blocker

    Physics: Post your doubts here!

    We add them like circuits. When in series just add 'em. When in Parallel add them like 1/something and inverse it.. ;)
  16. Thought blocker

    Physics: Post your doubts here!

    You took XY and YZ :P - Not the same :P
  17. Thought blocker

    Physics: Post your doubts here!

    Case i) When all 3 springs are attached to the load W : So, think.. If you have 3 springs and you have 1 weight attach to them what will be the force for each string ? It would be W/3 So we know F = kx k = W/3x Case ii) When middle spring is removed and 2W load is attached to them : So, think...
  18. Thought blocker

    Physics: Post your doubts here!

    Gosh! I like your presentation ! - A LOT :)
  19. Thought blocker

    Physics: Post your doubts here!

    Dushyant, here I took distance XY and XZ and solve them simultaneously. This was the only way I could think of :p ZaqZainab I tried your way now :p LOL Anyways here is my method :¬ Use the equation of motion d = ut + 0.5at^2 equation 1 : 40 = 12u + 72a equation 2 : 80 = 18u + 162a [I added...
  20. Thought blocker

    Physics: Post your doubts here!

    6) The question states that "X is measured with a percentage uncertainty of ±1 % of its value at all temperatures." meaning that the percentage uncertainty is unchanged, so A and B is eliminated. then you need to apply some logic here, will the actual uncertainty get bigger as you approach 100...
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