By combining Newton's law of Universal Gravitation with Kepler's Third Law of Planetary Motion it is possible to Question 44 options: a) calculate the speed of light. b) measure the average distance from the Earth to the sun. c) determine the mass of the sun by observing the orbital distance and orbital periods of the planets. d) determine the period of the sun around the center of the galaxy. e) None of the above, the two laws cannot be combined