M R LTE 82% 8:14 PM PHY 2048 Pop Quiz 9 Tor thapterrI3 Name: Data: Mass of the Sun is 1.99 x 10^30 k Mass of the Earth is 5.98 x 10^24 kg, Earth-Sun Distance is 1AU = 1.496 x 10^11 m NASA is going to launch a spy satellite at an altitude of 12,000 km above the Earth's surfad Find the orbital velocity v =? 1. Find the period of the satellite, in hours. 2. An asteroid (m = 20 tons) is approaching the Earth, traveling at 10 km/sec when it enters atmosphere at 100 km above the surface. Find its kinetic energy. 3 Find its potential energy. 4. Find the Kinetic energy when it hits the Earth's surface. (assume no air resistance 5 Saturn is orbiting around the Sun at a distance of 9.555 AU, and Saturn's period is 29.4 ye Use this astronomical data to calculate the mass of the Sun 6. Venus has a 0.82 Earth mass, and a radius of 0.95 Earth radius. Use this data to calculate the escape velocity of Venus. 7. 8 Find the orbital velocity of a space probe that is 200,000 km above the surface. Find the Orbital period of this space probe. 9 The escape velocity on the surface of the Moon is 2.4 Km/sec, and the radius of the Moon radius. Find the mass of the Moon from this. טר

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