Question

using hubbles law, what is the main conclusion that can be drawn about the universe from the relationship between distance and velocity of galaxies?

Explanation:

Step1: Recall Hubble's law

Hubble's law is given by $v = H_0d$, where $v$ is the recessional velocity of a galaxy, $d$ is the distance of the galaxy from us, and $H_0$ is the Hubble constant.

Step2: Analyze the relationship

The law shows a linear relationship between the velocity $v$ of a galaxy and its distance $d$ from us. Galaxies that are farther away from us have higher recessional velocities.

Step3: Draw conclusion about the universe

This linear - relationship implies that the universe is expanding. The expansion is uniform on a large - scale, as described by Hubble's law.

Answer:

The main conclusion is that the universe is expanding, and the velocity of a galaxy is directly proportional to its distance from us, as described by Hubble's law $v = H_0d$.