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  1. Thought blocker

    Physics: Post your doubts here!

    s13_13 15) Use formula : 0.5 * F * extension 0.5 * F * ((40) - (40*5)) ≈ 1.3 J 16) IDK 19) Solved 29) F = qV / D F = [(1.6 x 10^-19) x (80)] / (5*10^-2) ≈ 2.6 x 10^-16 31) I = V / R I = ( 2 - 1 ) / ( 9+2+1 ) I = 0.083A 34) The wires are connected in parallel - that's the first thing you...
  2. Thought blocker

    Physics: Post your doubts here!

    5) sagar's edit :P Okay, so what we need to find out is the percentage uncertainty in the value of the volume of the sphere with a radius measurement of r = 5.00 mm ± 0.01 mm. The formula for volume of a sphere as a function of radius is 4πr³/3. Therefore, we are multiplying r into r into r to...
  3. Thought blocker

    Physics: Post your doubts here!

    15) for a couple, there has to be two equal forces acting in opposite directions. A is wrong because the forces are acting in the same direction. D is wrong because the forces are not acting in opposite directions. then why is C wrong? right? well C is wrong because two forces are in opposite...
  4. Thought blocker

    Physics: Post your doubts here!

    14) moment = force x distance clockwise moment = anticlockwise moment W x a + F x h = W x 2a
  5. Thought blocker

    Physics: Post your doubts here!

    s13_12 7) Total speed will be 10 + 50 so s = (v -(-u)) / 2 * t so s = 60/2 * 2 = 600m 9) Mass of wind coming in contact with the blades per second = density * speed * area = 475.2 kg/s F = mv-mu/t As it is 475.2 kg/s, we will use F = 475.2*0 - 475.2*33/1 = D 20)...
  6. Thought blocker

    Physics: Post your doubts here!

    LAST TIME ANSWERING :P 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...
  7. Thought blocker

    Physics: Post your doubts here!

    Hey... Rockstar RK Help her.... I would help other people ;)
  8. Thought blocker

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s13_qp_11.pdf Q11,12,18,19,21,31,32,35 PLEASEEEPLEASSEE Solve this.. I am doing other two links...
  9. Thought blocker

    Physics: Post your doubts here!

    So will you help me... ?? I'll solve s13_13/12 and you solve s13_11 Okay ?
  10. Thought blocker

    Physics: Post your doubts here!

    A Anytime*
  11. Thought blocker

    Physics: Post your doubts here!

    37) The easiest way to solve these questions is by using some fake values of “I” entering the parallel junction. You know that the current is divided into the inverse proportional of the resistances in parallel, so that means if say, you have 6 A entering the junction, 4 A would go the 2 Ohm...
  12. Thought blocker

    O.o I completed 98 ._. WAit... I am going for lunch, we'll start in eve.. :/ Till that lemme...

    O.o I completed 98 ._. WAit... I am going for lunch, we'll start in eve.. :/ Till that lemme do my work :) Tc
  13. Thought blocker

    other 380 sums ._.

    other 380 sums ._.
  14. Thought blocker

    Lemme complete 120 ._. Then we'll start :)

    Lemme complete 120 ._. Then we'll start :)
  15. Thought blocker

    completed 89 sums ._.

    completed 89 sums ._.
  16. Thought blocker

    han! :P

    han! :P
  17. Thought blocker

    Physics: Post your doubts here!

    Later :)
  18. Thought blocker

    I completed 85 sums ._.

    I completed 85 sums ._.
  19. Thought blocker

    How me archers ?

    How me archers ?
  20. Thought blocker

    -_!

    -_!
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