Two Objects Are Moving Directly Away from an Observer at the Same

question 88

Multiple Choice

Two objects are moving directly away from an observer at the same speed. One object, however, is twice as far away as the other. How do their Doppler shifts compare?

• A) They are the same.
• B) The more distant object has the greater Doppler shift.
• C) The more distant object has the smaller Doppler shift.
• D) Whichever object is larger will have the greater Doppler shift.

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Definitions:

Select Query

In databases, a select query is used to retrieve specific data from one or more tables based on a set of criteria.

Update Query

In database management, a query that modifies the values of existing records in a table according to specified criteria.

Make-Table Query

In databases, a query that creates a new table from data selected from one or more other tables.

Self-Join Query

A database query that joins a table to itself to aggregate or compare rows within the same table based on a set of criteria.