Hubble Carried Out the Determination of the Distance to the Andromeda

question 78

Multiple Choice

Hubble carried out the determination of the distance to the Andromeda "nebula" (which finally resolved the Shapley-Curtis debate on the nature of "spiral nebulae") by observing

• A) pulsars.
• B) Cepheid variable stars.
• C) the Doppler shift of stars in the "nebula."
• D) the main sequence of stars in the "nebula."

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Definitions:

Split-Off Point

The stage in a production process where multiple products become individually identifiable and their costs can be separately assigned.

Additional Processing Costs

Costs incurred during the manufacturing process that are above the initial expected expenses, often due to added steps or materials required.

Support Departments

Units within an organization that provide essential services or support to the production or primary departments but do not directly engage in the main activity of the business.

Proportional Usage

The allocation of resources, costs, or efforts in relation to the direct usage or benefit obtained from those resources.