Help needed! 1: Why were Tycho and Kepler a good team?
2: How did changing the shape of the planet orbits help Kepler explain planetary movement?
3: What is an ellipse?
4: Does Kepler’s 2nd Law of Planetary Motion apply to satellites? Why or why not?
5: What made it possible for Kepler to come up with his ideas on planetary motion?

for question 5 its

Explanation:

Through Brahe's astronomical measurements and Kepler's own drawings of the geometrical relationship between the Sun and Mars in various parts of the planet's orbit, Kepler discovered that planets moved faster when they were closer to the Sun.

b.transmitters send radio waves, and receivers capture radio waves.

because if the tool that you are using is not balanced it there would be false mass.