Stretch or shrink the velocity vector so, when you click Play, the orbit is circular. Use the formula you derived in item 8 to determine the speed that will result in a circular orbit when the Sun is 2.0 Solar masses.

Scientists follow specific processes in order to determine valid explanations and conclusions from observations. david observed strange lights in the sky above his home outside of roswell, new mexico. the only explanation that makes sense to him is that there are ufos in the area. what should david do next to verify his explanation?