1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vaieri [72.5K]
2 years ago
13

Astronomers infer that the universe is expanding because distant galaxies all appear to?

Physics
1 answer:
Phantasy [73]2 years ago
6 0

Answer:

They appear to recede from our viewpoint.

That is, their emitted spectra are shifted toward the red (red-shift).

The wave-lengths that are received on earth are somewhat longer because of the "Doppler" shift of the receding atoms.

You might be interested in
When you push a 1.90-kg book resting on a tabletop, you have to exert a force of 2.10 N to start the book sliding. Once it is sl
zimovet [89]
Static frictional force = ƒs = (Cs) • (Fɴ)
              2.26 = (Cs) • m • g
              2.26 = (Cs) • (1.85) • (9.8)
           Cs = 0.125 
kinetic frictional force = ƒκ = (Cκ) • (Fɴ)
              1.49 = (Cκ) • m • g
              1.49 = (Cκ) • (1.85) • (9.8)
           Cκ = 0.0822 
3 0
3 years ago
Differentiate between rest and motion.
Lyrx [107]

Answer:

<em>1</em><em>. </em><em>A body is said to be at rest if its position does not change with respect to its surroundings.</em>

8 0
3 years ago
Which is a sub-atomic particle?
Natalka [10]
A particle that is smaller than an atom or a cluster of particles.
4 0
3 years ago
How do particle motion and temperature change as a material absorbs heat?
mylen [45]
The particle motion increases, and temperature increases. Hope this helps GIVE ME BRANLIST
5 0
3 years ago
100mL of 4°C water is heated to 37 °C . Assume the density of the water is 1g/mL. The specific heat of water is 4.18 J/g(°C). Wh
swat32

Answer:

13807.2  J/g°C

Explanation:

I just took the test and got it correct

6 0
3 years ago
Other questions:
  • Plz help anybody good in Physics?
    11·1 answer
  • 3. A stone is thrown upward at an angle. What happens to the horizontal component of its velocity as it rises
    8·1 answer
  • Explain how you can change your workout routine using each of the SPORT and FITT principles.
    15·1 answer
  • Bunyi yang teratur disebut dengan
    6·1 answer
  • A car drives to the right. There is a large amount or air resistance and the cars engine provides the cars forward motion. Which
    5·2 answers
  • Tanks of compressed gas must be kept away from heat sources. If a compressed–gas tank is heated too much, it may explode and cau
    12·2 answers
  • Two microwave signals of nearly equal wavelengths can generate a beat frequency if both are directed onto the same microwave det
    7·1 answer
  • A fairgrounds ride spins its occupants inside a flying saucer-shaped container. If the horizontal circular path the riders follo
    9·1 answer
  • A fin whale is swimming at the speed of 35 km/h how many hours will it take to swim 7 km
    7·1 answer
  • A machine which has an energy loss of 10% will have efficiency of​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!