Refer to the Figure

question 15

Multiple Choice

Refer to the figure. A Type I Cepheid has been located in an open cluster. The period of the Cepheid variable is 30 days and the variables apparent visual magnitude m is 10. First, use 12-1 to estimate the absolute visual magnitude, M . Calculate the distance to this open cluster? Hint: d_pc = 10^{(m - M + 5) /5} using a scientific calculator.

• A) 100 pc
• B) 10,000 pc
• C) 20 pc
• D) 300 pc
• E) 2500 pc

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Definitions:

Identity Status

Refers to the stages in the process of developing a sense of self or identity, often explored during adolescence.

Marcia's Theory

A psychological theory by James Marcia that categorizes an individual's identity development during adolescence into four statuses based on exploration and commitment.

Commitment

A pledge or promise to do something, often requiring dedication and perseverance, in personal or professional contexts.

Preconventional Level

A stage in Kohlberg's theory of moral development, where an individual's moral reasoning is based primarily on the consequences of actions and on receiving rewards or avoiding punishment.