When an Acrobat Hangs Motionless from a Pair of Rings

question 74

Multiple Choice

When an acrobat hangs motionless from a pair of rings

• A) she has no measurable weight.
• B) her weight depends on the angles the ropes make with the ceiling.
• C) her weight is reduced by the upward force the rings exert on her.
• D) her weight is increased by the upward force the rings exert on her.
• E) she exerts a gravitational force on the Earth that is equal to the sum of the forces the rings exert on her.

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Definitions:

Variable Factors

Inputs to production that can be adjusted in the short run, such as labor and raw materials.

Fixed Costs

Costs that do not change with the level of production or sales, such as rent, salaries, or insurance, and must be paid regardless of business activity.

Industry Supply Curve

The industry supply curve represents the total quantity of goods that producers in a market are willing and able to sell at different prices, assuming all other factors constant.

Output

The cumulative production of goods or services by a corporation, industry, or the entire economy.