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  1. Umar Zain

    Physics P22 Answer Discussion.

    i put the answer 90 degree phase diff...whatever duhh
  2. Umar Zain

    totally can't recall, but first i look for Power input from the values of efficiency and Power...

    totally can't recall, but first i look for Power input from the values of efficiency and Power output...then through that, i just substitute in the formula
    • Umar Zain
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  3. Umar Zain

    It was scaring me to death...I answer everything, so I would freak out if there's any mistake

    It was scaring me to death...I answer everything, so I would freak out if there's any mistake
    • Umar Zain
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  4. Umar Zain

    2.6W? Most got 3200... How did you get that answer?

    2.6W? Most got 3200... How did you get that answer?
    • Umar Zain
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  5. Umar Zain

    *the grades

    *the grades
  6. Umar Zain

    ameen...i rather not think about it, just let grade take care of themselves

    ameen...i rather not think about it, just let grade take care of themselves
  7. Umar Zain

    it happen to me too, the best now is to avoid the crowd because most would either complain or...

    it happen to me too, the best now is to avoid the crowd because most would either complain or boast their intelligence...either way will totally affect your performance badly....but that doesn't mean you cannot ask question for the next exam...good luck bro
  8. Umar Zain

    divide the charge you obtained earlier with the charge of an electron, then divide your answer...

    divide the charge you obtained earlier with the charge of an electron, then divide your answer with the time given
  9. Umar Zain

    i think charge=currentXtime shoul be the minimum answer to score full credit principle of...

    i think charge=currentXtime shoul be the minimum answer to score full credit principle of moment: sum of cw moments = sum of acw moments about any pivot for equilibrium system
  10. Umar Zain

    u're right...i entered the exam feeling bitter, so it really affect my performance

    u're right...i entered the exam feeling bitter, so it really affect my performance
  11. Umar Zain

    yes...thats the majority answer...thank you very much, im just worried because the marks are big...

    yes...thats the majority answer...thank you very much, im just worried because the marks are big (3)..maybe they need us to calculate total resistance first etc.
  12. Umar Zain

    By the way, I don't think the graphs questions require workings because they did not provide any...

    By the way, I don't think the graphs questions require workings because they did not provide any space. Marks would be shape, plot values(2 marks), correct position for each line (worth 2 marks perhaps).
  13. Umar Zain

    AS physics 22. There one question asking for power. Is it TOTAL POWER or power for an ELECTRON...

    AS physics 22. There one question asking for power. Is it TOTAL POWER or power for an ELECTRON? I use P=(V^2)/R. Total marks is 3 right?
  14. Umar Zain

    AS physics 22. There one question asking for power. Is it TOTAL POWER or power for an ELECTRON...

    AS physics 22. There one question asking for power. Is it TOTAL POWER or power for an ELECTRON? I use P=(V^2)/R. Total marks is 3 right?
  15. Umar Zain

    AS physics 22. There one question asking for power. Is it TOTAL POWER or power for an ELECTRON...

    AS physics 22. There one question asking for power. Is it TOTAL POWER or power for an ELECTRON? I use P=(V^2)/R. Total marks is 3 right?
  16. Umar Zain

    AS physics 22. There one question asking for power. Is it TOTAL POWER or power for an ELECTRON...

    AS physics 22. There one question asking for power. Is it TOTAL POWER or power for an ELECTRON? I use P=(V^2)/R. Total marks is 3 right?
  17. Umar Zain

    Sorry for the late reply. Concept is W=mg, m=19/9.81 If its not troublesome can u help me...

    Sorry for the late reply. Concept is W=mg, m=19/9.81 If its not troublesome can u help me confirm with other about the power question?
  18. Umar Zain

    im really gonna bang my head if I got wrong for the question about power...its that easy

    im really gonna bang my head if I got wrong for the question about power...its that easy
  19. Umar Zain

    not sure though...

    not sure though...
  20. Umar Zain

    acceleration/time, same shape with force/time (change in) momentum/time, straight line from...

    acceleration/time, same shape with force/time (change in) momentum/time, straight line from origin to (2.0s, 17 Ns), then vertival line reach zero, then straight line along x-axis....concept: gradient = force
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