In the Figure,two Identical Springs Have Unstretched Lengths of 0

question 32

Multiple Choice

In the figure,two identical springs have unstretched lengths of 0.25 m and spring constants of 300 N/m.The springs are attached to a small cube and stretched to a length L of 0.36 m as in Figure A.An external force P pulls the cube a distance D = 0.020 m to the right and holds it there.(See Figure B.) The work done by the external force P in pulling the cube 0.020 m is closest to

• A) 0.12 J.
• B) 0.060 J.
• C) 6.0 J.
• D) 12 J.
• E) 0.80 J.

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Definitions:

Variable Cost Ratio

A measure of a company's variable costs as a percentage of sales, which shows the proportion of sales that is consumed by variable costs.

Profit-Volume Ratio

A measure that illustrates how profits will change with a change in volume, showing the relationship between profit and sales levels.

Mixed Cost

A cost that contains both variable and fixed cost elements, changing in total with the level of activity but having a portion that remains constant.

Variable Cost

Costs that vary directly with the level of production or service activity.