In a Certain Particle Accelerator,a Proton Has a Kinetic Energy

question 47

Multiple Choice

In a certain particle accelerator,a proton has a kinetic energy that is equal to its rest energy.What is the speed of the proton relative to the accelerator?

• A) 0.25c
• B) 0.50c
• C) 0.71c
• D) 0.75c
• E) 0.87c

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Definitions:

Average Tax Rate

The percentage of total income that is paid in taxes, calculated by dividing the total amount of taxes paid by the total income.

Excise Taxes

Taxes applied to specific goods, services, or transactions, often included in the price of products like tobacco, alcohol, and gasoline, aimed at reducing their consumption or raising revenue.

General Sales Tax

A tax imposed on sales transactions, applied to the sale of most goods and some services, and usually calculated as a percentage of the sales price.

Marginal Tax Rate

Refers to the rate at which the last dollar of income is taxed, indicating the impact of an additional dollar of income on tax liability.