The Pion (M_p = 140 MeV/c²)is Thought to Be the Particle

question 22

Multiple Choice

The pion (m_p = 140 MeV/c²) is thought to be the particle exchanged in the nuclear force.What is the maximum range of this particle if its "time of existence" is as long as can be allowed by the uncertainty principle DE*Dt = h/2p? (h/2p = 1.05 x 10^-34 J*s,c = 3.00 x 10⁸ m/s,and 1 eV = 1.6 x 10^-19 J)

• A)1.2 x 10^-15 m
• B)1.4 x 10^-15 m
• C)2.0 x 10^-15 m
• D)7.5 x 10^-15 m

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Definitions:

Retained Earnings

The portion of a company's profits that is kept or retained rather than distributed to shareholders as dividends, typically used for reinvestment.

Accounts Closed

This term refers to the process of clearing the balance of temporary accounts at the end of the accounting period and transferring the balances to permanent accounts.

Trial Balance

A bookkeeping report that lists the balances of all ledgers accounts in order to verify that total debits equal total credits.

Financial Statements

Formal records of an entity's financial activities and conditions, including the balance sheet, income statement, and cash flow statement.