A Particular Star Is at a Distance of 20 Pc

question 102

Multiple Choice

A particular star is at a distance of 20 pc from Earth.For this star,the apparent magnitude would be

• A) either larger or smaller than the absolute magnitude,depending on the temperature and diameter of the star.
• B) a smaller number than the absolute magnitude.
• C) a larger number than the absolute magnitude.
• D) the same as the absolute magnitude because magnitude is independent of distance.

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Definitions:

Spontaneous Recovery

A phenomenon in psychology where a previously extinguished response re-emerges after a period of no exposure to the conditioned stimulus.

Positive Reinforcer

An event or item that, when presented after a behavior, increases the likelihood of that behavior occurring again.

Negative Reinforcer

A stimulus whose removal after a particular behavior increases the likelihood of that behavior occurring again in the future.

Pleasant Stimulus

A pleasant stimulus is any event, object, or situation that produces a positive emotional response or feeling of enjoyment.