If $4 \mathrm {~J}$ Of Work Are Needed to Stretch a Spring From

question 57

Multiple Choice

If $4 \mathrm {~J}$ of work are needed to stretch a spring from $10 \mathrm {~cm}$ to $12 \mathrm {~cm}$ and another $20 \mathrm {~J}$ are needed to stretch it from $12 \mathrm {~cm}$ to $14 \mathrm {~cm}$ , what is the natural length of the spring? Round the answer to nearest integer.

• A) \(12 \mathrm {~cm}\)
• B) \(8 \mathrm {~cm}\)
• C) \(13 \mathrm {~cm}\)
• D) \(11 \mathrm {~cm}\)
• E) \(10 \mathrm {~cm}\)

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Definitions:

ATC

Average Total Cost, a term in economics that refers to the total cost per unit of output, calculated by dividing the total cost by the quantity of output produced.

Surveillance System

An integrated system designed to monitor and collect data on activities or changes in an area or environment, often used for security purposes.

Marginal Cost

The cost of producing one additional unit of a good or service, crucial for decision-making in production and pricing strategies.

Fixed Cost

Costs that do not change with the amount of goods or services produced, such as rent, salaries, and loan payments.