Two Wires,A and B,have the Same Initial Length,but the Radius

question 15

Multiple Choice

Two wires,A and B,have the same initial length,but the radius of A is four times that of B,and the Young's modulus of A is a third that of B.If the same weight is attached to both wires,what is the ratio of the extension of A divided by the extension of B?

• A)0.19
• B)48
• C)5.3
• D)1.3
• E)0.75

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Definitions:

Average Fixed Cost

The fixed costs of production (costs that do not change with the level of output) divided by the quantity of output produced.

Output

The total quantity of goods or services produced by a firm or economy over a specific period.

Marginal Product

Refers to the additional output that is produced by adding one more unit of a specific input, assuming all other inputs are held constant.

Total Product

The total amount of output that a firm produces, usually measured over a certain time period, using all available inputs.