If You Found a Galaxy with an Hα Emission Line

question 2

Multiple Choice

If you found a galaxy with an Hα emission line that had a wavelength of 756.3 nm,what would be the galaxy's distance if the Hubble constant is 70 km/s/Mpc? Note that the rest wavelength of the Hα emission line is 656.3 nm.

• A)650 Mpc
• B)760 Mpc
• C)3,200 Mpc
• D)6,400 Mpc
• E)7,600 Mpc

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Definitions:

Direct Labor

Workers who are directly involved in the manufacturing of goods or provision of services, whose labor costs are directly attributed to the product or service.

Raw Materials

Fundamental substances utilized as the starting point in the manufacturing process to create products.

Predetermined Overhead

An estimated amount of overhead cost assigned to each unit of production in advance of the actual production.

Actual Manufacturing

The real and factual process of producing goods, as opposed to planned or estimated production.