pleasehelpme1347 pleasehelpme1347

24-04-2020
Geography

contestada

Please help me!!!
Explain how astronomers use red shift and blueshift.

Respuesta :

bizzyliz9 bizzyliz9

24-04-2020

Astronomers use redshirts to track the rotation of our galaxies, tease out the subtle tug of a distant plant on its parent star, and measure the expansion rate of universe.

Answer Link

Otras preguntas

Read the excerpt from "Mending Wall." I let my neighbour know beyond the hill; And on a day we meet to walk the line And set the wall between us once again. W

adolf hitler was able to convince fellow germans that the jews were bad and should be killed because

to what country does mexico export the most goods

E-democracy is the direct participation by citizens online in governmental decisions.

explain the meaning of tephra and how volcanic bombs, lapilli, and ash relate to tephra

The formula for the area of a square is s2, where s is the side length of the square. What is the area of a square with a side length of 6 centimeters?

Read the sentence. Frank walked WITHOUT ANY HESITATION out the door. Identify the phrase in bold. A. adverb phrase B. gerund phrase C

Cooks use baking soda to make cakes light and fluffy. You might have used baking soda yourself. Baking soda is NaHCO3. A 0.1 M solution of baking soda in water

MANY POINTS AND WILL GIVE BRAINLIEST!!! Show work for all questions please Solve and graph each inequality 1. | 4w + 1 | > 11 Find each union or interse

How many subsets of at least one element does a set of six elements have? A. 63 B. 64 C. 12 D. 42