An Electron Is Moving at 0

question 23

Multiple Choice

An electron is moving at 0.6c.If we calculate its kinetic energy using (1/2) mv², we get a result which is:

• A)just right
• B)just half enough
• C)twice the correct value
• D)about 1% too low
• E)about 28% too low

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Definitions:

Margin of Safety

The difference between actual sales and the break-even point, indicating how much sales can drop before a company incurs a loss.

Break-even Sales

The instance at which all costs are balanced by all revenues, resulting in neither gain nor loss.

Break-even Point

The level of production or sales at which total revenues equal total expenses, resulting in no profit or loss.

Fixed Expenses

Costs that are static in total over a particular period, not varying with production volume or sales, such as salaries and rent.