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
Deffense [45]
3 years ago
7

6. Applying Explain how scientists see what early galaxies looked like..

Physics
1 answer:
svlad2 [7]3 years ago
6 0

Answer:  The younger elliptical and lenticular galaxies had results similar to spiral galaxies like the Milky Way. The researchers found that the older galaxies have a larger fraction of low-mass stars than their younger counterparts.

Explanation:

You might be interested in
What do MRI and ultrasound have in common as diagnostic imaging techniques? Check all that apply.
Gennadij [26K]

Answer:

low risk for tissue damage

uses radio waves

the last three are not correct

:)

8 0
3 years ago
Read 2 more answers
A 0.111 kg hockey puck moving at 55 m/s is caught by a 80. kg goalie at rest. with what speed does the goalie slide on the frict
madreJ [45]

Answer:

0.076 m/s

Explanation:

Momentum is conserved:

m v = (m + M) V

(0.111 kg) (55 m/s) = (0.111 kg + 80. kg) V

V = 0.076 m/s

After catching the puck, the goalie slides at 0.076 m/s.

8 0
3 years ago
Sliding friction is affected by the weight of the object.<br><br> True or false
Dmitry [639]
Yes that is correct or in other form, True

7 0
3 years ago
Read 2 more answers
A 2kg object is tied to the end of a cord and whirled in a horizontal circle of radius 2 m. If the body makes three complete rev
Travka [436]

Answer:

a) 37.70 m/s

b)710.6 m/s²

Explanation:

Given that ;

Mass of object = 2 kg

Radius of the motion = 2m

Frequency of motion = 3 rev/s

The formula to apply is;

v= 2πrf   where v is linear speed

v = 2×π×2×3 =12π = 37.70 m/s

Centripetal acceleration is given as;

a= 4×π²×r×f²  

a= 4×π²×2×3²

a=710.6 m/s²

5 0
3 years ago
Which phenomena support only the wave theory of light? select 2 options. reflection refraction diffraction interference photoele
attashe74 [19]

Interference and diffraction are the phenomena that support only the wave theory of light. Options 2 and 3 are correct.

<h3 /><h3>What is the interference of waves?</h3>

The result of two or more wave trains flowing in opposite directions on a crossing or coinciding pathways. This phenomenon is known as the interference of waves.

The phenomenon of interference occurs when two wave pulses are traveling along a string toward each other.

The light wave hypothesis states that light behaves like a wave. Since light is an electromagnetic wave, it may be transmitted without a physical medium.

Light has magnetic and electric fields, much like electromagnetic waves do.

Transverse waves, such as those seen in light waves, oscillate in the same direction as the wave's path. A wave of light may experience interference as well as diffraction as a result of these properties.

All of the remaining options are the light phenomenon.

Hence, options 2 and 3 are correct.

To learn more about the interference of waves refer to the link;

brainly.com/question/16098226

#SPJ1

3 0
2 years ago
Other questions:
  • The star Rho1 Cancri is 57 light-years from the earth and has a mass 0.85 times that of our sun. A planet has been detected in a
    9·1 answer
  • Laticia draws the diagram below to show Earth’s magnetic field.
    15·2 answers
  • Two blocks are the same size one block has a higher temperature than the other. Which describes the thermal energy of these bloc
    9·1 answer
  • A manufacturer of printed circuit boards has a design capacity of 1,000 boards per day. the effective capacity, however, is 700
    15·1 answer
  • If the diameter of a radar dish is doubled, what happens to its resolving power assuming that all other factors remain unchanged
    14·1 answer
  • At the temperature at which we live, earth's core is solid or liquid?
    11·1 answer
  • PLEASE PLEASE HELP ME!!!!!!!!!!
    15·1 answer
  • What is the definition of inertia? A. The amount of force required to reach the speed of light. B. The rate at which an object a
    7·2 answers
  • What does kinetic energy do when it go up a hill?what do potential energy do when it does up a hill?
    7·1 answer
  • Which formula can be used to find the tangential speed of an orbiting object? v = StartFraction 2 pi r over T EndFraction v = St
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!