A Pole Stands in a River, Half in and Half

question 53

Multiple Choice

A pole stands in a river, half in and half out of the water.Another pole of the same length stands vertically on the shore at a place where the ground is level.The shadow cast by the pole in the river on the river bottom is:

• A)slightly longer than the shadow of the pole on land
• B)much longer than the shadow of the pole on land
• C)shorter than the shadow of the pole on land
• D)shorter than the shadow of the pole on land if the sun is high and longer if the sun is low
• E)the same length as the shadow of the pole on land

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Definitions:

Marginal Rate

Generally refers to the rate at which one quantity changes with respect to a change in another, often used in the context of taxes or substitution rates.

Indifference Curve

A visual depiction illustrating various pairings of two products that deliver the same degree of happiness and usefulness to a buyer.

Substitution

The act of replacing one item or factor with another due to factors like cost, preferences, or availability, often affecting consumer choices and market dynamics.

Yogurt

A food produced by bacterial fermentation of milk, often sweetened and flavored.