If the discrepancy from a 1/d^2 relationship seen in the graph above was caused by ________, then the discrepancy in the positive-negative video will be _________(select from below).
a) the same magnitude and direction,
b) the same magnitude but opposite direction
c) zero
d) other (explain)
For example, if you thought the scale reading got less and less throughout the first (positive vs positive) video because the lower ball was filling with Helium then you'd predict that it would also get less in the second (positive vs negative) video.
