Calculate the force of Earth's gravity on a spacecraft 2.00 Earth radii above the Earth's surface if its mass is 1850 kgkg . Express your answer to three significant figures and include the appropriate units.
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- An astronaut standing on Earth's surface has a weight of 700 N (about 157 lbs). He then takes a rocket ship to a distant planet with a mass twice as large as Earth and a radius 50% larger than Earth's radius. How much does the astronaut weigh on this new planet (in Newtons)? 7.The planet Krypton had a surface gravitational field strength of 13.5 N/kg. a) if Superman weighed 1054N on Krypton, how much would he weigh on Earth? b) if Krypton had a radius of 1.6 x 104 km, what would its mass have been?