PLEAS HELP! It’s for my physics final!! An astronaut travels to a position in space that is a height of 2R above the surface of Earth, where R is Earth's radius. At this height, the force of Earth's gravity is of its force at the surface.

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Earthplanet yplanet y5=earth     *many different equationsplanet x1.5=earthplanet x is two times planet yobject 5,2500 mass5,1,3,2,4object 1 is four times obect 4

Aform of energy that is reflected or emitted from objects in the form of electrical and magnetic waves that can travel through space. there are many forms of  electromagnetic  energy including gamma rays, x rays, ultraviolet radiation, visible light, infrared radiation, microwaves and radio waves.

This did i unseated, sorry