In a Certain Particle Accelerator, a Current of 800 μA

question 77

Multiple Choice

In a certain particle accelerator, a current of 800 μA is carried by a 6.00-MeV proton beam that has a radius of 1.50 mm. The mass of a proton is 1.67 × 10^-27 kg. How many protons per unit volume are in this beam?

• A) 3.24 × 10¹³ protons/m³
• B) 7.76 × 10¹³ protons/m³
• C) 1.57 × 10¹³ protons/m³
• D) 2.09 × 10¹³ protons/m³
• E) 4.34 × 10¹³ protons/m³

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An inventory accounting method where the last items purchased are the first ones used in costing inventory, applied at the end of the accounting period.

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