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Search results

  1. M

    Physics 5 6PH05 Help?

    it is the answer given by our teacher! thank you very much! good luck!
  2. M

    Physics 5 6PH05 Help?

    explaination please!!!!?????
  3. M

    Physics 5 6PH05 Help?

    A small satellite has a weight of 1200 N at the Earth's surface. It is launched in to a circular orbit with radius equal to twice the radius of the earth. The weight of the satellite in this orbit is: A- 0 N B- 300 N C- 600 N D- 1200 N so can someone explain this with the correct answer please?
  4. M

    PHYSICS UNIT 4 (6PH04) HELP!

    i think the answer is B! first of all, use W=FS! then substitute F with F=EQ, which is derived from E=F/Q! now you have W=EQS! then substitute E with E=V/d! now the equation is "W=(V/d)*Q*S" now, V is as it is d is also as it is, Q is q, S is x! now the final answer is (V/d)*q*x so, what is...
  5. M

    PHYSICS UNIT 4 (6PH04) HELP!

    thank you very much! :-) ive got it now! to convert from eV to V, we have to divide it by 1 Electronvolt, right?
  6. M

    PHYSICS UNIT 4 (6PH04) HELP!

    sorry for my dumbness! :'( still i can't figure out how to do this! got confused in the eV part! can you post the full calculations please?
  7. M

    PHYSICS UNIT 4 (6PH04) HELP!

    can some one help me with this question? its from jan 2010 Unit 4! 6- An electron gun uses a potential difference to accelerate electrons from rest to a speed of 2.00*10^7. The potential difference is: A- 569 V B- 1140 V C- 2280 V D- 4560 V how to do this?
  8. M

    edexcel chem unit 4 help!!!plz!!

    go to youtube! search "khan academy kc expression" there are many videos!
  9. M

    PHYSICS UNIT 4 (6PH04) HELP!

    here you go! :-) bangladesh.exams.britishcouncil.org/download_file.php?filename=dhaka/upload/6PH04_01_rms_201303071366015000.pdf
  10. M

    PHYSICS UNIT 4 (6PH04) HELP!

    whooops!....... i checked a wrong marking scheme! :-( the answer is actually D! im really sorry!.....
  11. M

    PHYSICS UNIT 4 (6PH04) HELP!

    hi, for this question the answer they say is B! my question is why not D?
  12. M

    Unit 2 Physics notes!!

    welcome :-) btw are you really from maldives?
  13. M

    Unit 2 Physics notes!!

    for that question, look carefully! all resistors are in series! so we have to add all :-)
  14. M

    Unit 2 Physics notes!!

    for that the answer is C first convert 5ms to seconds by dividing it over 1000! that is 0.005! then multiply it by 4, because it have four squares for 1 wavelength! that is 0.02! then use F=1/T so 1/0.02 is 50Hz thats it! :-)
  15. M

    Unit 2 Physics notes!!

    these are my guess! if im not correct, please correct me! :-) answer for Q4 is B UV ray freq is higher(10^15) than that of visible light(10^14)! according to equation E=hf, energy of UV is high! so it is from energy level 4 to 1! the answer for Q5 is D! the current in (L+M) will be = to N...
  16. M

    i'm gonna fail physics! :(

    can someone explain what happens in this question? its from unit1! june 2012 q7 & jan 2012 q4! please someone??????.....
  17. M

    6ph01, post your doubts here......

    can someone explain what happens in this question? its from unit1! june 2012 q7 & jan 2012 q4! please someone??????.....
  18. M

    Helpppp

    can someone explain what happens in this question? its from unit1! june 2012 q7 & jan 2012 q4! please someone??????.....
  19. M

    How was Physics 6PH08 Alternative to practical ?

    i think it is correct! and in a range of 1.54 to 1.58 or something! because when we draw it like a curve, we get something like that! let's wait and see!..... :-)
  20. M

    How was Physics 6PH08 Alternative to practical ?

    what was the precision of the instrument for stopwatch? i wrote 0.01
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