The small spherical planet called \"Glob\" has a mass of 6.50Ã—1018 kg and a radius of...

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Physics

The small spherical planet called \"Glob\" has a mass of6.50Ã—10¹⁸ kg and a radius of 5.60Ã—10⁴ m. Anastronaut on the surface of Glob throws a rock straight up. Therock reaches a maximum height of 1.64Ã—10³ m, above thesurface of the planet, before it falls back down.
-What was the initial speed of the rock as it left theastronaut's hand? (Glob has no atmosphere, so no energy is lost toair friction. G = 6.67Ã—10^-11Nm²/kg².)
(in m/s)
-A 33.0 kg satellite is in a circular orbit with a radius of1.40Ã—10⁵ m around the planet Glob. Calculate the speedof the satellite.
(in m/s)

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3.6 Ratings (438 Votes)

First you want to know the acceleration due to gravity of the planet Glob At the surface the gravitational acceleration g can be determined by equating the weight of an object with the gravitational force law mg GMmR2 where R is the See Answer

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