The Apparent Brightness of a Star Is $1.0 \times 10 ^ { - 12 } \mathrm {~W} / \mathrm { m } ^ { 2 }$

question 25

Multiple Choice

The apparent brightness of a star is $1.0 \times 10 ^ { - 12 } \mathrm {~W} / \mathrm { m } ^ { 2 }$ and the peak wavelength in its light is 600 $\mathrm { nm }$ . Assuming it is the same size as our sun and that it radiates like an ideal blackbody, estimate its distance from us, in parsecs. The constant in Wien's law is $0.00290 \mathrm {~m} \cdot \mathrm { K }$ , and 1 parsec is equal to $3.09 \times 10 ^ { 16 } \mathrm {~m} . \left( R _ { \text {sun } } = 6.96 \times 108 \mathrm {~m} , \sigma = 5.67 \times 10 ^ { - 8 } \frac { \mathrm { W } } { \mathrm { m } ^ { 2 } \cdot \mathrm { K } ^ { 4 } } \right)$

• A) \(1.2 \mathrm { pc }\)
• B) \(120 \mathrm { pc }\)
• C) \(1200 \mathrm { pc }\)
• D) \(12 \mathrm { pc }\)

Understand concepts related to death, including nonfunctionality and biological causality.

Comprehend societal attitudes towards death, including cultural rituals and beliefs about the afterlife.

Recognize the importance of advance directives in end-of-life planning.

Understand how different cultures conceptualize and deal with death.

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Definitions:

Regression Coefficients

Values that represent the relationship between the independent variable and the dependent variable in a regression analysis.

Crime Rates

Represents the number of reported crimes in a given area, typically expressed per 100,000 inhabitants.

Response Variable

In statistics and modeling, the variable that is the outcome of a study or experiment and is influenced or predicted by the predictor variables.

Marital Status

A legally defined relationship status of an individual, typically categorized as single, married, divorced, widowed, or separated, often affecting legal rights and social benefits.