Suppose You Observe a Star Emitting a Certain Emission Line

question 73

Essay

Suppose you observe a star emitting a certain emission line of helium at 584.8 nm.The rest wavelength of this line is 587.6 nm.How fast is the star moving? Is it moving toward you or away from you?

---

Definitions:

Nutrient Molecules

Substances obtained from food that are essential for growth, energy, and maintaining body functions.

Cellular Structures

The complex arrangement of cells and their components within a living organism, including organelles like the nucleus, mitochondria, and others.

Homeostasis

The self-regulating process by which biological systems maintain stability while adjusting to changing external conditions to support life.

Metabolism

The biochemical process by which organisms convert food into energy and building blocks for growth, maintenance, and repair.