You Find a Star Orbiting About the Center of the Galaxy

question 88

Essay

You find a star orbiting about the center of the galaxy at a distance of 15 kpc.Using the rotation curve in the figure shown below, estimate how much mass is enclosed within the orbit of that star.You can assume the star is on a circular orbit around the center of the Milky Way.

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Definitions:

Reflex Arc

A neural pathway that controls an action reflex, involving a sensory neuron, a motor neuron, and typically an interneuron, to facilitate a quick automatic response to stimuli.

Scientific Thought

A systematic way of questioning and examining the natural world, and the analysis of empirical evidence to reach conclusions.

Intellectual Growth

Intellectual growth is the development of mental faculties and cognitive abilities, often through learning, education, and experience.

Visual Field

the entire area that can be seen when the eyes are focused on a single point, encompassing both the central and peripheral vision.