A Force of 15

question 29

Multiple Choice

A force of 15.0 N is applied to a wire with an unstretched length of 4.00 m and a diameter of 5.00 mm. If the wire changed length by 1.20 mm, then the strain in the wire is

• A) 1.00 × 10⁻⁴.
• B) 2.00 × 10⁻⁴.
• C) 3.00 × 10⁻⁴.
• D) 4.00 × 10⁻⁴.
• E) 5.00 × 10⁻⁴.

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Definitions:

Equilibrium Quantity

The quantity of goods supplied is equal to the quantity demanded at a given price level.

Equilibrium Price

The price at which the quantity of a good supplied equals the quantity demanded, resulting in no surplus or shortage in the market.

Zero Economic Profit

A situation where a firm's total revenues exactly equal its total costs, indicating no above-normal profit.

Economist

A professional or expert in economics, studying the production, distribution, and consumption of goods and services.