Answer:
B. an action-reaction force pair
Answer:
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Explanation:
Work is a net force applied through a distance in order to displace an object, commonly abbreviated as W. A net force is the sum of all forces acting on an object. Work is mass times acceleration and distance so to find out the work you simply calculate the acceleration of the box being brought in. Next find the distance it was carried to get in the house. Then find out the mas of the box and finally multiply those sums together to get the amount of work put in to bring the package inside.
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<span>Air at the equator is warmed by the direct rays of the sun while air at the poles is cooled because the suns rays are not so direct. As air warms, it expands and becomes less dense therefore rises, similarly but vice versa for cool air.
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