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
Ahat [919]
3 years ago
5

List and describe the three types of galaxies.

Physics
1 answer:
Andrei [34K]3 years ago
5 0

Answer:

According to NASA and their Hubble Space Telescope, we have 4 different types of galaxies, the 3 main ones being elliptical, spiral, and irregular.

Explanation:

Elliptical galaxies are shaped almost like an oval. They do not have any "arms" like you imagine in most galaxies, like our own Milky Way. An example would be galaxy ESO 325-G004.

Spiral galaxies are shaped almost like a circle and has arms "spiraling" out from the center. An example of a spiral shaped galaxy would be our own galaxy, the Milky Way.

Irregular galaxies do not have a definite shape. They are usually shaped randomly and can consist of any shape. An example would be galaxy NGC 1569.

The 4th and obscene type of galaxy is called the Lenticular galaxy. This is simply almost like a cross section between an elliptical galaxy and a spiral galaxy combined together. It is shaped like a disk and has no arms. An example would be galaxy NGC 5010.

You might be interested in
How does the force of gravity affect the rate of acceleration?
Vesnalui [34]
Gravity lets all objects fall to the ground at the same speed, 9.8 m/s/s. If the force of gravity were stronger, such as 10 m/s/s, the rate of acceleration would be faster.
3 0
3 years ago
Racing greyhounds are capable of rounding corners at very high speeds. A typical greyhound track has turns that are 45 m diamete
Readme [11.4K]

Answer:

In m/s^2:

a=11.3778 m/s^2

In units of g:

a=1.161 g

Explanation:

Since the racing greyhounds are capable of rounding corners at very high speed so we are going use the following formula of acceleration for circular paths.

a=\frac{v^2}{r}

where:

v is the speed

r is the radius

Now,

a=\frac{16^2}{45/2}\\ a=11.3778 m/s^2

In g units:

a=\frac{11.3778\ g}{9.8}\\ a=1.161\ g

7 0
3 years ago
A constant power is supplied to a rotating disc .the relationship of angular velocity of disc and number of rotations made by th
Bogdan [553]
A rotating disc supplied with constant power where the relationship of the angular velocity of the disc and the number of rotations made by the disc is governed by Newton's second law for rotation. This law is specially made for rotating bodies which is extracted from Newton's second law of motion. 
6 0
3 years ago
What safety feature melts to protect a circuit?
N76 [4]
A fuse melts to protect a circuit.
7 0
3 years ago
Define the upper mantle and the lower mantle as well give both the thickness and temperature
defon

Answer:

A

Explanation:

because thats what I put and got it right

8 0
3 years ago
Other questions:
  • A 5 inch tall balloon shoot doubles in height every 3 days. if the equation y=ab^x, where is x is the number of doubling periods
    10·1 answer
  • Which of the following ways is usable energy lost?
    14·2 answers
  • I THINK I KNOW THE ANSWER BUT I NEED VERIFICATION!!!!!!!
    12·2 answers
  • After a parallel-plate capacitor has been fully charged by a battery, the battery is disconnected and the plate separation is in
    9·2 answers
  • A 912-kg car is being driven down a straight, level road at a constant speed of 31.5 m/s. When the driver sees a police cruiser
    5·1 answer
  • Why doesnt the moon crash towards earths surface?
    15·2 answers
  • Most of the motion generated by joints in the human body are examples of levers. An example of a third class lever is the forear
    15·1 answer
  • A 25.0kg girl pushes a 50.0kg boy so that he accelerates at 4.00m/s2. What is the force of the boy on the girl? A. 200N B. 100N
    10·1 answer
  • 1. boiling point of water
    15·1 answer
  • I need help with these questions :<br>(see image )​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!