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  1. A

    Physics P2 Help Required

    It's been answered already. Turn a page back.
  2. A

    Physics P2 Help Required

    It's the same thing: try understanding what the equation means. n is the point where displacement is max, if you add half a wavelength to it, you'll be where displacement is zero. If you remove half a wavelength, you'll still be where the displacement is zero.
  3. A

    Physics P2 Help Required

    I have a question. W07 P2 4 (c) - I've got the area to be 2.0 x 10^-6 but I don't understand why we're subtracting this from 3.2 x 10^-6. 4 (d) - I don't exactly get the logic behind the mark scheme's answer!
  4. A

    Physics P2 Help Required

    Q4 c) According to the diver's assumption, 101000 = 1080 * 9.81 * h h = 9.53m The error in h, is therefore, 10 - 9.53 = 0.47m Percentage error= [error in h/h] * 100 = [0.47 / 10] * 100 = 4.7% Q6 b) Someone posted a really neat response to this question in another thread, let me quote:
  5. A

    Physics P2 Help Required

    Sorry for the crap drawing, I'm using a touchpad. Basically, the open spaces are where destructive interference is taking place & the points where they cut each other are where constructive interference are taking place.
  6. A

    Physics P2 Help Required

    S07 Q5 b) ii) We can see there are 5 anti-nodes in the 39cm region (Each empty space is an antinode, you can draw the stationary wave itself if you're unsure on how many wavelengths are in the 39cm). One wave has two antinodes, therefore there are 2.5 complete waves in the 39cm region. 2.5 ...
  7. A

    p5 phy

    yes please, for the solved p5 papers; any will do!
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