A Rotating Flywheel Can Be Used as a Method to Store

question 21

Multiple Choice

A rotating flywheel can be used as a method to store energy.If it has 2.0 × 10⁶ J of kinetic energy when rotating at 435 rad/s,and if a frictional torque of 4.0 N
M acts on the system,in what interval of time would the flywheel come to rest?

• A) 2 300 min
• B) 38.3 min
• C) 21.1 min
• D) 153 min

Learn how to calculate real wages and understand their significance over time.

Recognize the influence of supply and demand in setting wage levels and economic rent.

Understand the distinctions between primary and secondary labor markets.

Comprehend the concepts of skilled and semiskilled labor.

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Definitions:

Taking a Loss

The action of selling an asset for less than its purchase price, resulting in a financial loss for the seller.

Regulated Natural Monopolies

Companies that operate in a market with no competition due to high infrastructure costs, but their prices and services are regulated by the government to protect consumers.

Public Utilities

Companies that provide essential services such as water, electricity, and telecommunications to the public, usually subject to government regulation.

Economies of Scale

Cost advantages reaped by companies when production becomes efficient, as the scale of operations and output increases.