Your spacecraft lands on an unknown planet. To determine the characteristics of this planet, you drop a 1.3 kg wrench from 5 m above the surface and find that it hits the ground 0.811 s later. You know

Your spacecraft lands on an unknown planet. To determine the characteristics of this planet, you

drop a 1.3 kg wrench from 5 m above the surface and find that it hits the ground 0.811 s later.
You know that the circumference of the planet is 62,400 km. What is the planet's mass?

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Your spacecraft lands on an unknown planet. To determine the characteristics of this planet, you drop a 1.3 kg wrench from 5 m above the surface and find that it hits the ground…

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