Irregular galaxies are very large. True or False?

Answers

Answer 1

Answer:

Answer:

False , irregular galaxies are not large galaxy.

Explanation:

False , irregular galaxies are not large galaxy.

There is no specific shape of irregular galaxies. They are one of the tiniest galaxies, filled with gas and dust. Having lots of dust and gas means there's a lot of star formation heading at these galaxies. This process can make them very clear. some examples of these type of galaxies are the Major and minor Magellanic Clouds.

Answer 2

Answer: it's false i hope this helps :)

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Which of the following stars would be the most luminous?2. Yellow star
3. Red star
4. Blue star
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Answers

The correct answer to the question that is stated above is the fourth option which is :Blue star.
Blue stars are uncommon but very bright. It has an average luminosity of 1,400,000 ( the Sun =1) with a strong UV continuum. The blue stars average mass is 60 ( the Sun =1) and its average radius is 15 ( the Sun =1).

Answer: Blue star.

Explanation:

A carousel is spinning at a speed of 100 cm/s, with the outermost horse at a distance 5 m from the center.Calculate the inward force on the outermost horse, if it weighs 1.5 kg.

A) 3 x 10-3 N
B) 3 x 10-2 N
C) 3 x 10-1 N
D) 3 x 10 N

Answers

The speed is 100/100=1 meter per second, so acceleration is 1^2/5=.2. Then, the net force is 0.2*1.5 kg = 0.3 N, or 3*10^-1 N.

Centripetal acceleration occurs because an object isSelect one:
a. slowing down.
b. changing direction.
c. speeding up.
d. none of these choices.

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Answer:

changing direction

............

True or false:when a plant falls from a window it's thermal energy is transformed into kinetic energy.

Answers

FALSE. The energy transformation is from gravitational potential energy (due to height) to kinetic energy (due to speed).

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