A Galaxy Cluster Is Measured to Have a Radius of 8

question 47

Essay

A galaxy cluster is measured to have a radius of 8 x10¹⁹ km, and the small outer galaxies are measured to orbit the cluster center with a circular velocity of 900 km/s.What is the mass of this cluster's core? (Recall that G = 6.67 *10^-11 N m² kg^-2.)

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Definitions:

Relevant Range

The span of activity level or volume in which the specific assumptions of cost behavior are considered to be applicable.

Break-Even Point in Units

The point at which sales volumes result in no profit or loss, calculated by dividing fixed costs by the contribution margin per unit.

Unit Fixed Cost

The fixed cost associated with manufacturing one unit of a product, which remains constant regardless of the number of units produced.

Unit Variable Cost

The variable cost associated with producing one unit of product, including materials, labor, and other costs that vary with production volume.