3) What Is the Period of the Object in the Previous Problem?

Gravitation Practice

1) Calculate the weight of a 50.0 kg mass on the moon. The mass of the moon is 7.36 x 1022 kg and the radius of the moon is 1.738 x 106 m.

2) A 15.0 kg object orbits the planet Mars at an altitude of 201 km above the surface. Mars has a radius of 3.43 x 106 m and a mass of 6.34 x 1023 kg. What is the velocity of this object in orbit?

3) What is the period of the object in the previous problem?

4) At closest approach, the 722 kg Voyager 2 probe flew by Neptune at an altitude of 29,240 km. What was Voyagers weight at that moment if Neptune has a radius of 24,900 km and a mass of 9.99 x 1025 kg?

5) Calculate the force between two touching grapefruits, each with a radius of 0.0800 m and a mass of 0.450 kilograms. 6) The center of the moon and the center of the earth are 3.80 x 108 m apart. The mass of the moon is approximately 7.36 x 1022 kg, while the earth's mass is about 5.98 x 1024 kg. What is the force between these two heavenly bodies?

7) If the moon is orbiting in a circular orbit, what is the period of the moon? Use the data from the previous question to get your answer

8) A man on Venus with a mass of 90.0 kg weighs 799 N. The radius of Venus is 6.05 x 106 m. What is the mass of Venus?

9) Bubba's mass is 79.9 kg and his girlfriend Barbie-Jean's mass is 58.7 kg. What is the gravitational attraction between the the lovely couple if their centers of mass are .756 m apart?