The Disc Brake of a High Performance Car Is Often

question 109

Multiple Choice

The disc brake of a high performance car is often made of carbon fiber instead of iron, thereby reducing the mass. If the mass of a carbon disc is that of iron for the same shape and size, by what factor is the moment of inertia changed?

• A) one quarter
• B) half
• C) unchanged
• D) doubled
• E) quadrupled

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Definitions:

Budget Difference

The variance between the budgeted amount and the actual amount spent or received in a given period.

Flexible Budget

A budget that adjusts or flexes with changes in volume or activity levels.

Budgeted Amounts

Projected financial figures used for planning purposes, including revenue, expenses, and capital expenditures.

Activity Level

The degree to which a company engages in its operational processes, often influencing production volume, costs, and efficiency.