In the Twenty-Second Century,a Hyperfast New York to Los Angeles $\mu$

question 4

Multiple Choice

In the twenty-second century,a hyperfast New York to Los Angeles train roars through St.Louis without stopping at a speed of 0.80c.The front of the train arrives at the St.Louis station at precisely 12:00 noon according to all the clocks on the train (which are all synchronized in the train's frame) ,and the passengers are called to lunch in the dining car.An observer on the station platform manages to catch a glimpse of a clock at the front of the train that reads exactly 12:00 noon.What is the time at this instant at the rear of the train,according to the observer on the platform,if the train is 500 m long in its rest frame?

• A)1.35 \(\mu\)s past noon
• B)1.35 \(\mu\)s before noon
• C)noon exactly
• D)1.35 ms past noon
• E)1.35 ms before noon

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Definitions:

Material Amount

A sum of money that is large enough to influence the economic decisions of users based on the financial statements of an entity.

Reporting Period

The specific time span covered by financial statements, typically one fiscal year or quarter, for which an entity reports its financial performance and position.

Carrying Amount

The book value of assets and liabilities, calculated as the original cost minus any accumulated depreciation, impairment, or amortization.

Fair Value

The expected proceeds from an asset sale or the financial commitment for a liability shift in an orderly engagement among market participants at the time of determining value.