Answer:
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Rescue someone from a huge fire, hurricane, earthquake, transport someone one really sick, someone going into surgery.
The winds blow from the northeast<span> in the </span>northern<span> hemisphere</span>
D. the gravitational force increases by a factor of 4
Explanation:
The magnitude of the gravitational force between two objects is given by:
where
is the gravitational constant
m1, m2 are the masses of the two objects
r is the separation between them
Here let's call F the initial gravitational force between the two objects. Later, the distance between the objects is halved, so the new distance is:
Substituting into the equation, we find the new force:
Therefore, the gravitational force increases by a factor of 4.
Learn more about gravitational force:
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