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
rusak2 [61]
3 years ago
13

What type of galaxy has mostly old stars, without a lot of star formation?

Physics
2 answers:
True [87]3 years ago
8 0
Elliptical galaxies typically have relatively little interstellar matter. Because of this, they also have a low portion of open clusters and a low rate of new star formation.
bazaltina [42]3 years ago
6 0
Elliptical galaxy's have more older stars but have low an minimal star formation
You might be interested in
A wave travels at 330m/s^-1. the wavelength is found to be 2.4m.
sveta [45]

Answer: frequency 137.5

Time period 0.01sec

Explanation:

7 0
2 years ago
After being struck by a bowling ball, a 1.8 kg bowling pin sliding to the right at 5.0 m/s collides head-on with another 1.8 kg
kaheart [24]

Answer:

a) v₂ = 4.2 m/s

b) v₂ = 5 m/s

Explanation:

a)

We will use the law of conservation of momentum here:

m_1u_1+m_2u_2=m_1v_1+m_2v_2

where,

m₁ = m₂ = mass of bowling pin = 1.8 kg

u₁ = speed of first pin before collsion = 5 m/s

u₂ = speed of second pin before collsion = 0 m/s

v₁ = speed of first pin after collsion = 0.8 m/s

v₂ = speed of second after before collsion = ?

Therefore,

(1.8\ kg)(5\ m/s)+(1.8\ kg)(0\ m/s)=(1.8\ kg)(0.8\ m/s)+(1.8\ kg)(v_2)\\v_2 = 5\ m/s - 0.8\ m/s

<u>v₂ = 4.2 m/s</u>

<u></u>

b)

We will use the law of conservation of momentum here:

m_1u_1+m_2u_2=m_1v_1+m_2v_2

where,

m₁ = m₂ = mass of bowling pin = 1.8 kg

u₁ = speed of first pin before collsion = 5 m/s

u₂ = speed of second pin before collsion = 0 m/s

v₁ = speed of first pin after collsion = 0 m/s

v₂ = speed of second after before collsion = ?

Therefore,

(1.8\ kg)(5\ m/s)+(1.8\ kg)(0\ m/s)=(1.8\ kg)(0\ m/s)+(1.8\ kg)(v_2)

<u>v₂ = 5 m/s</u>

5 0
3 years ago
The redshift of a star means that _____.
Gelneren [198K]
The correct answer is D. the star is getting farther away.

When the light has red-shifted, it shows that everything is moving away from a certain point. This is known as the Doppler effect and proves the Big Bang (which would be the center point that everything is moving away from). Just as a 'for your information', blue shift is when the star is moving towards us.

Hope I helped :)
4 0
3 years ago
Read 2 more answers
What can a paleontologist tell from fossil footprints of a dinosaur
weeeeeb [17]
They can tell what type/species the dinosaur was
8 0
3 years ago
Read 2 more answers
In regards to mechanical energy, is energy being conserved ?
xxTIMURxx [149]

If only internal forces are doing work (no work done by external forces), then there is no change in the total amount of mechanical energy. The total mechanical energy is said to be conserved. ... In these situations, the sum of the kinetic and potential energy is everywhere the same.

7 0
2 years ago
Other questions:
  • 1 Point
    12·1 answer
  • How long would it take for a ball dropped from the top of a 484-foot building to hit the ground? round your answer to two decima
    7·1 answer
  • An aircraft has a mass of 3.30 x 105 kg. At a certain instant during its landing, its speed is 45.2 m/s. If the braking force is
    11·1 answer
  • Which point lies on the line with point slope equation : y+5=2(x+8)
    9·2 answers
  • A 0.0400-g positive charged ball with charge q = 6.40 μC is resting on a flat, frictionless horizontal surface. For a time of t
    15·1 answer
  • In a football game, a 90 kg receiver leaps straight up in the air to catch the 0.42 kg ball the quarterback threw to him at a vi
    14·1 answer
  • The diagram shown represents two objects, a and b, in contact. The direction of heat transfer between them is determined by thei
    14·1 answer
  • A hot drink in a room is at a temperature of 20 C
    15·1 answer
  • Write two example in which chemical energy is converted into heat energy ​
    11·1 answer
  • A soccer ball rests on the ground in a stationary position. Which of the following best describes the forces acting on the ball?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!