In a Certain Particle Accelerator, a Current of 300 μA

question 28

Multiple Choice

In a certain particle accelerator, a current of 300 μA is carried by a 4.00-MeV proton beam that has a radius of 1.30 mm. The mass of a proton is 1.67 × 10^-27 kg. What is the number of protons per unit volume in this beam?

• A) 3.64 × 10¹³ protons/m³
• B) 2.76 × 10¹³ protons/m³
• C) 1.28 × 10¹³ protons/m³
• D) 5.98 × 10¹³ protons/m³
• E) 4.17 × 10¹³ protons/m³

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Definitions:

Stock Split

A stock split is an action taken by a company to divide its existing shares into multiple ones to boost the liquidity of the shares, without changing the overall value of shareholders' equity.

Stock Dividend

A dividend payment made in the form of additional shares rather than a cash payout.

Retained Earnings

Profits that a company has earned to date, less any dividends or other distributions paid to shareholders, often reinvested back into the company.

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The funds raised by a company through the issuance of shares, representing the ownership of the company.