What Is the Most Reliable Way to Measure the Mass

question 48

Multiple Choice

What is the most reliable way to measure the mass of a star for which the distance is known?

• A)Apply the mass-luminosity relation.
• B)Measure its orbit around another star.
• C)Measure its radius, then compute its volume and multiply by density to get the mass.
• D)Apply the mass-temperature relation.

---

Definitions:

Myelin

A fatty substance that surrounds and insulates the axons of some neurons, enhancing the speed at which electrical impulses travel along the nerve cells.

Vision Problems

Issues related to the ability to see, which can range from mild blurriness to severe impairments affecting daily life.

Neurogenesis

The process of generating new neurons in the brain.

Central Nervous System

The part of the nervous system consisting of the brain and spinal cord.