superman is flying 54.5 m/s when he sees a train about to fall into a river 850 m away . he must reach the train in 4.22 s
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Answer:
Explanation:
Given that,
The mass of a Hubble Space Telescope,
It orbits the Earth at an altitude of
We need to find the potential energy the telescope at this location. The formula for potential energy is given by :
Where
is the mass of Earth
Put all the values,
So, the potential energy of the telescope is .