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

question 38

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.

---

Definitions:

Breaking Even

The point at which total revenues equal total costs, resulting in no net loss or gain.

Net Present Value

A financial metric that calculates the present value of all future cash flows associated with a project, minus the initial investment cost.

Cost of Capital

The cost of funds used for financing a business, including the rate of return that investors demand for providing capital.

Cash Flows

The comprehensive total of financial resources entering and leaving a business, significantly affecting its ability to cover immediate and short-term obligations.