A Spherical Shell and a Solid Sphere (Both of the Same

question 19

Multiple Choice

A spherical shell and a solid sphere (both of the same total mass) are rotating about a diameter at the same angular frequency and with the same rotational kinetic energy.What is the ratio of the spherical shell radius to the solid sphere (i.e.,R_{spherical shell}/R_{solid sphere}) ?

• A)(2/5)^1/2
• B)(3/10)^1/2
• C)(1/2)^1/2
• D)(3/5)^1/2
• E)(2/3)^1/2

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Definitions:

Total Collection Time

The total period it takes for a business to convert its accounts receivable into cash.

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The process of collecting, managing, and investing a company's cash flows in a way that meets its operational and financial objectives.

Zero-Balance Account

A chequing account in which a zero balance is maintained by transfers of funds from a master account in an amount only large enough to cover cheques presented.

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The minimum amount of cash that a company needs to keep on hand to protect against unforeseen variability in cash flow.