Question

question 29
2 pts
to make a profit a buyer purchases metal by weight at one altitude and sells it at the same price per pound at another altitude. the supplier should
buy at a high altitude and sell at a low altitude.
buy at a low altitude and sell at a high altitude.
it makes no difference
no answer text provided.

Explanation:

Weight is related to the force of gravity. At higher altitudes, the gravitational acceleration \(g\) is slightly less (since \(g=\frac{GM}{r^{2}}\), where \(r\) is the distance from the center of the Earth, and \(r\) is larger at higher altitudes). The weight of an object \(W = mg\). When buying, if \(g\) is smaller (high - altitude), for the same mass \(m\) of metal, the measured weight \(W\) (which is what the buyer pays for) is smaller. When selling at a low - altitude (where \(g\) is larger), for the same mass \(m\), the measured weight \(W\) (which is what the buyer gets and pays for) is larger. So, by buying at high altitude (where the weight measured for a given mass is less, so the buyer pays less for a given mass) and selling at low altitude (where the weight measured for the same mass is more, so the buyer gets more "apparent" weight for the same mass, but the seller has a profit because the cost per unit mass was lower at high - altitude), the buyer can make a profit.

Answer:

buy at a high altitude and sell at a low altitude.