A Small Lead Sphere of Mass M Is Hung from a Spring

question 31

Multiple Choice

A small lead sphere of mass m is hung from a spring of spring constant k.The gravitational potential energy of the system equals zero at the equilibrium position of the spring before the weight is attached.The total mechanical energy of the system when the mass is hanging at rest is

• A)−kx².
• B)− kx².
• C)0.
• D)+ kx².
• E)+kx².

---

Definitions:

Variable Overhead Efficiency Variance

The difference between the actual variable overhead based on the efficient use of resources and the standard variable overhead expected.

Materials Price Variance

The difference between the actual cost of materials used and the standard cost, multiplied by the actual quantity of materials used.

Production Manager

An individual responsible for overseeing the production process, ensuring efficiency, meeting production targets, and maintaining quality standards.

Labor Rate Variance

The difference between the actual labor cost incurred and the standard labor cost for the actual hours worked.