5.625 hours and it is 450 divided by 80
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Answer:
False -
F = G M1 M2 / R^2
So F depends on M1 and M2 and as long either is not zero there will be a gravitational force between them.
Answer: conduction :it transfers heat between objects that are in direct contact with eachother
PE= 3kg x 10N/kg x 10m
= 300J
