4. A research team has discovered that a moon is circling a planet of our solar system: The moor orbits the planet once every 7 hours on a nearly circular orbit in a distance R of 48000 km from he centre of the planet. Unfortunately, the mass m of the moon is not known. Use Newton's lav of gravitation with G = 6.67 · 10-¹1 m³/(kg-s²) to approach the following questions: mM F = G. R² a) Based on the observations, determine the total mass M of the planet. b) Which moon and planet of our solar system is the team observing? (Use literature.) (1
