Answer:
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Work is done when a force is applied to an object moves that object. the work is calculated by multiplying the force by the amount of movement of an object
The acceleration due to gravity serves as the centripetal acceleration of the objects that orbits the Earth. The centripetal acceleration due to gravity is calculated through the equation,
a = v²/r
where v is the speed and r is the radius. Substituting the known values to the equation,
9.8 m/s² = (420 m/s)² / r
The value of r from the equation is 18000 m or equal to 18 km.
<em>Answer: 18 km</em>
Answer: I am getting a result around the 54,800 area, so I am selecting the 55,000 HP answer.
32 kg m/s would be the kinetic energy.
