A Piece of Wood Is Floating in a Bathtub

question 19

Multiple Choice

A piece of wood is floating in a bathtub.A second piece of wood sits on top of the first piece,and does not touch the water.If the top piece is taken off and placed in the water,what happens to the water level in the tub?

• A)It goes up.
• B)It goes down.
• C)It does not change.
• D)It cannot be determined without knowing the volumes of the two pieces of wood.

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Definitions:

Positive Amount

A value that is greater than zero, indicating a quantity that adds to a total rather than subtracting from it.

Price

The financial charge expected, required, or dispensed as payment for a product.

Marginal Cost Curve

A graph that shows the change in the total cost of producing one additional unit of a good or service.

Average Fixed Cost Curve

A graphical representation showing how the average fixed cost per unit changes as the quantity of output produced changes.