A Rotating Solid Disk with a Diameter of 0

question 7

Essay

A rotating solid disk with a diameter of 0.25 m and a mass of 10 kg is used
to store 1 kJ of energy. What is its rotational speed in revolutions per minute?

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Definitions:

Margin Loan

A loan given by a broker to an investor to purchase securities, where the securities act as collateral for the loan.

Round Lots

Standardized number of units of a financial instrument, usually 100 shares for stocks.

Per Share

A financial metric that represents some quantity divided by the total number of outstanding shares of a company, often used in financial ratios.

First-day Returns

The percentage change in price of a stock or other security from its offering price on its first day of public trading.