The Wave Speed in a Wire Stretched with a Tension

question 31

Multiple Choice

The wave speed in a wire stretched with a tension of 250 N is 240 m/s and the radius of the wire is 0.50mm.What is the density of the wire?

• A)3.94 * 10³ kg/m³
• B)4.01 * 10³ kg/m³
• C)2.75 * 10³ kg/m³
• D)5.53 * 10³ kg/m³
• E)8.60 * 10³ kg/m³

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Definitions:

Returns To Scale

Rate at which output increases as inputs are increased proportionately.

Increasing Marginal Product

A situation where each additional unit of input results in an increased amount of output.

Economic Rents

Extra earnings above the minimum amount necessary to keep a factor of production in its current use.

Accounting Costs

The explicit costs of a business, representing the actual outflows of cash for wages, rent, materials, and other tangible inputs.