Physics, 12.02.2020 02:02 katiebotts18

What would the radius (in mm) of the Earth have to be in order for the escape speed of the Earth to equal the speed of light (3 x 108 m/s)? You may ignore all other gravitational interactions for the rocket and assume that the Earth-rocket system is isolated.

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What would the radius (in mm) of the Earth have to be in order for the escape speed of the Earth to...