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  1. J

    Multiple choice answers

    Induced current opposes motion of conductor, so palm points the opposite direction of motion. fingers point into page, as the field is into the page. that makes your thumb point to the right. but, current is opposite direction of electrons, so electrons go the the left, to side P. that makes the...
  2. J

    Q6 b) i)

    Subbing in what you know, and knowing the ratio: Ae^(k x 0) = 2Ae^(k x 1600) simplify: e^(1600k) = 0.5 solve for k
  3. J

    General Thoughts: Mathematics

    6 subintervals = 7 function values And as for the radium one, it was about the ratio (ie after 1600 it was half: Ae^(-k x 0) = 2Ae^(-k x 1600), and the A's cancelled out then you just had to use normal log laws and such to figure out k.
  4. J

    Q5 c)i)1)

    The angles at the circumference had to be equal, since the triangle was isosceles (equal radius). But since the angle at the center was 60, then that meant the angles at the circumference were both 60 as well, therefore the triangle was equilateral. Therefore, the length was the same as the...
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