When scientists observed the light from stars and galaxies, they noticed that their color shifted toward the end of the visible color spectrum.
a. violet
b. green
c. red
d. blue
Solved
Show answers
More tips
- F Food and Cooking Do Aphrodisiacs Really Work? Separating Fact from Fiction...
- C Computers and Internet Log-in: what is it and why do you need it?...
- S Style and Beauty Secrets of Tying a Pareo: 5 Ways...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
Answers on questions: Physics
- P Physics How many moles of phosphorus trichloride are in 200 grams of the 62.67 mol27,466.6 mol1.46 mol0.69 mol...
- P Physics Aone eighth -kg mass is attached to a spring with stiffness 16 n/m. the damping constant for the system is 2 n-sec/m. if the mass is moved eight fifteenths m to the left of equilibrium...
- P Physics 1. circle any of the following quantities that are velocities. put an x through any of the following quantities that are speeds. a) 24 m/s north b) 10 mph c) - 100 km/h d) 75...
- P Physics Name two practical applications of nanotechnology...
- P Physics The mass of an object is determined by: weighing the object with a scale multiplying the height, width, and length measuring the object with an equal-arm balance using the water...
- M Mathematics Ruppell s Griffons fly up to 37,000 feet. A sperm whale can swim to 3,000 feet below sea level. Using the figure shown as a guide, which integer represents sea level? Explain....
- M Mathematics Overview 10 Question Progress Homework Progress 43 / 50 Marks Which two numbers have a mean of 10 and a range of 4?...
- G Geography Identify 5 factors that has resulted in India being switched on...
- E English Give respect to get respect...
- M Mathematics 3sinA=4cosA so find tansquareA_sinsquareA...
Ответ:
When we talk about the visible electromagnetic spectrum, we know it starts in violet-blue and ends in red.
Now, in this context the astronomer Edwin Powell Hubble observed several celestial bodies, and when obtaining the spectra of distant galaxies he observed that the spectral lines were displaced towards the red one (red shift), whereas the nearby stars showed a spectrum displaced to the blue one.
From there, Hubble deduced that the farther the galaxy is, the more redshifted it is in its spectrum, and noted that all galaxies are "moving away from each other with a speed that increases with distance".
In other words: In the past the distance between two galaxies was smaller than at present, being this the proof that the universe is expanding (like a balloon expands when it is filled with air).
It should be noted that the redshift is not produced by the relative movement of the galaxies with each other.
This effect is due to the own expansion of the space among the galaxies.Ответ:
protein
Explanation: