## Homework#3

[Load Homework 3.]

##### A blue ball is circling around a black hole, kept in orbit by
the force of gravity. Of course the black hole (as is true of all
black holes) can't be seen. Using the applet below, determine the
location of the black hole and the mass of the black hole. The
mass of the ball doesn't matter, but its actual mass is 2
kg. Show and explain your work. Use complete sentences when
giving your explanations for simulations. Be sure and give the
data used in the calculation. You may discuss this problem with
others, but your work and explanation must be your own. Warning:
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the applet to load (a preliminary graph will appear) before
clicking "load homework 3"). If you have trouble, try
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