Apollo 11 returning from the Moon had a measured trajectory in which the distance and velocity with time was recorded for over 200 hours. For each pair of distances there is an average distance and from the change in velocity an average acceleration at that distance. Here are 4 values from among many that are available: Show that the field is inversely proportional to the square of the distance (suggested to plot a graph or look at acceleration's rel
Apollo 11 returning from the Moon had a measured trajectory in which the distance and velocity with time was recorded for over 200 hours. For each pair of distances there is an average distance and from the change in velocity an average acceleration at that distance. Here are 4 values from among many that are available:
Show that the field is inversely proportional to the square of the distance (suggested to plot a graph or look at acceleration's relationship to 1/r2.
Given G, the universal constant of gravitation, use your result to find the mass of the Earth. Do not look up the mass on Google for this, but calculate from the data. Once you've done that, compare to a mass you can find from a reliable source. The point is that once we know a value for G we can measure the mass of the Earth from motions affected by its gravity.v
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