• We need your support!

    We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
    Click here to Donate Now (View Announcement)

Search results

  1. Mustafa84922

    Physics, Chemistry and Biology: Post your doubts here!

    PART B(i) Maximum Kinetic energy is equal to maximum gravitational potential energy, this is because when the max. g.p.e will be lost all of it will turn into kinetic energy as there is no air resistance therefore, we will take the lowest height (0.1) in the formula mgh max k.e = max g.p.e = mgh...
  2. Mustafa84922

    Physics, Chemistry and Biology: Post your doubts here!

    Here you go! it took me some time to print it and then solve and then again transfer them to pc through my mobile so srry for the late reply
  3. Mustafa84922

    Physics, Chemistry and Biology: Post your doubts here!

    well dont learn them by heart a few important ones are attached so dumb of me to say few but u only have to read them 2-3 times thats all............
  4. Mustafa84922

    Physics, Chemistry and Biology: Post your doubts here!

    thanks for the info :)
  5. Mustafa84922

    Physics, Chemistry and Biology: Post your doubts here!

    i guess.......just solve past papers and study the notes you have made in your class it is too late to ask everyone for concentrating on their teachers lecture as the small stuff really matter but still its easy to get a* DO NOT LEAVE ANY QUESTION EVEN IF YOU ARE NOT SURE MAKE A GUESS AT LEAST...
  6. Mustafa84922

    Physics, Chemistry and Biology: Post your doubts here!

    no problem......im glad i was of use to someone.........
  7. Mustafa84922

    Physics, Chemistry and Biology: Post your doubts here!

    part (c) The acceleration of the engine will be greater according to the equation F=ma as the mass of the engine will decrease because of the empty water tank, however the force it still the same
  8. Mustafa84922

    Physics, Chemistry and Biology: Post your doubts here!

    part (b) states that we need to find the mass of the engine..... well we are already given the force needed to hold the engine in equilibrium; 0.06N this means that both directions have the same amount of force acting therefore, we can use F=ma to calculate the mass as we are also given the...
  9. Mustafa84922

    Physics, Chemistry and Biology: Post your doubts here!

    2(A) first of all we will calculate the speed of the engine when it breaks the beams 12mm=0.012m speed=distance/time speed=0.012/0.08 (we will divide the distance between the beams with 0.08, because 0.08 is the time that the engine takes to cut the second beam after the first one) speed=0.15...
  10. Mustafa84922

    Physics, Chemistry and Biology: Post your doubts here!

    we can calculate the work done or useful energy while climbing 20 rungs in a similar way to 2(B) which is 4800J how did i get this? here you go work done is equal to force*area here the force is 800N while the area is the 0.3m(30cm) 20 times which goes like: 800*20*0.3 = 4800 now in the question...
  11. Mustafa84922

    True Or False ::::::: The Game Of Vision

    ummm yea, you could say that.........:p pbm is familiar with this game xD
  12. Mustafa84922

    Physics, Chemistry and Biology: Post your doubts here!

    no idea and yea it is quite similar
  13. Mustafa84922

    True Or False ::::::: The Game Of Vision

    Can i join? True :p PBM wants to be rich..... :D
  14. Mustafa84922

    Physics, Chemistry and Biology: Post your doubts here!

    Thank you very much and pls will u explain that volume of gas in balloon question again, if you do pls explain each and everything you do in the solution the question is from 31 2014 winter you have explained it before but i did not understand it still.......and once again THANK YOU VERY MUCH...
  15. Mustafa84922

    Physics, Chemistry and Biology: Post your doubts here!

    BTW I WAS TALKING ABOUT part (a)(ii)
  16. Mustafa84922

    Physics, Chemistry and Biology: Post your doubts here!

    Hey! can anyone help me with this i dont understand the explanation of part (ii) in the mark scheme here is the mark scheme
  17. Mustafa84922

    Hey so how was your paper ZîîHana Kawaîî and what about physics are you taking it?

    Hey so how was your paper ZîîHana Kawaîî and what about physics are you taking it?
  18. Mustafa84922

    Physics, Chemistry and Biology: Post your doubts here!

    can anyone help me i got a* in my school exams in physics but now tomorrow is the paper and im not able to even solve the simplest questions -_- and i asked a question from 2014 winter 31 it was about the volume of helium in an inflated balloon, can anyone give me COMPLETE explanation i mean...
  19. Mustafa84922

    Physics, Chemistry and Biology: Post your doubts here!

    YEA he is right i did not read your answer first i just directly replied to him :p and i also forgot to use the upward forces and downward forces rule damnit im bad at physics.............
  20. Mustafa84922

    Physics, Chemistry and Biology: Post your doubts here!

    lol i am wrong srry....... ill try to solve it again........
Top