What Is the ONLY Way to Measure the Mass of a Star

question 195

Multiple Choice

What is the ONLY way to measure the mass of a star accurately?

• A) Measure its distance using trigonometric parallax and its brightness using photometry.
• B) It is not possible to measure the mass of a star.
• C) Measure its spectral type and luminosity class, then use the H-R diagram.
• D) Measure its gravitational effect on another object.

Analyze the role of societal norms and deprivation in triggering collective action.

Recognize the impact of social, political, and economic changes on collective action.

Understand the historical context and implications of collective actions.

Distinguish between routine and non-routine collective actions based on their goals and methods.

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Definitions:

Corner Sizing Handle

A visual indicator, usually found at the corner of selected objects or windows, that allows users to click and drag to resize the element proportionally.

Middle Sizing Handle

A graphical handle found in the center of an object's side in graphical interfaces, allowing for adjustment in size along one dimension.

Aspect Ratio

The proportional relationship between the width and height of an image or display screen.

Select Button

A control element in a graphical user interface that allows users to choose or highlight one or more options from a list.