1.How fast is the typical oxygen molecule (with a mass of 5.31e-26 kg) traveling when it is at a temperature of 440 Kelvins?
2.Suppose you wish to measure the mass of a planet. To do so, you place a test mass in orbit around the planet at a distance of 6.6e+8 meters from the center of the planet. You find that the orbital period is 2.1e+5 seconds. What is the mass of the planet?