We Can Estimate the Mass of the Galaxy from Observations

question 59

Short Answer

We can estimate the mass of the Galaxy from observations of its ________ curve.

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Definitions:

Trapezius

A large, triangular muscle extending over the back of the neck and shoulders, responsible for moving the scapula and support of the arm.

Levator Scapulae

A muscle in the back and side of the neck that elevates the scapular (shoulder blade).

Deltoid

A thick, triangular-shaped muscle covering the shoulder joint that is responsible for lifting the arm and giving the shoulder its range of motion.

Intrinsic

Referring to something that is inherent or natural to a particular entity or system.