An Alpha Particle with a Charge of 2e E =

question 45

Multiple Choice

An alpha particle with a charge of 2e e = 1.6 × 10^-19 C) is moving at right angles to a uniform magnetic field of 1.20 T. The radius of curvature of the track of the particle is 0.20 m. What is the momentum of the alpha particle?

• A) The question cannot be answered because the speed of the particle is not given.
• B) 7.7 × 10^-20 kg m/s
• C) 3.1 × 10^-19 kg m/s
• D) 0.77 kg m/s
• E) 4.6 × 10^-21 kg m/s

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Definitions:

Unadjusted Trial Balance

A list of all the general ledger accounts and their balances at a specific point in time, before any adjustments are made.

Income Summary

An account used in the closing process that aggregates all revenues and expenses to determine the net income or loss for a specific period before transferring the balance to the retained earnings.

Retained Earnings

The portion of net income that is kept by the company rather than distributed to its shareholders as dividends.

Revenue

Cumulative income generated through the primary business functions of a company, involving the transaction of goods or services.