Uniform Circular Motion: the Figure Shows Two Wires That Are

question 98

Multiple Choice

Uniform circular motion: The figure shows two wires that are tied to a 710 g mass that revolves in a horizontal circle at a constant speed of 7.5 m/s. What is the tension in the upper wire?

• A) 34 N
• B) 20 N
• C) 27 N
• D) 41 N

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Definitions:

Economic Profit

The total revenue minus explicit and implicit costs; it represents additional income over what could be earned in the next best alternative.

Average Total Cost

This refers to the total cost of production divided by the number of units produced, representing the cost per unit.

Marginal Cost Curve

A graph that shows the relationship between the marginal cost of producing an additional unit of a good or service and the quantity produced.

Ceteris Paribus

A Latin phrase meaning "all other things being equal," used in economics to isolate the effect of one variable on another.