All categories

3 years ago

Which type of galaxy has arms that contain sites of active star formation and start close to a bulge in the center?

Physics

2 answers:

valentinak56 [21]3 years ago

7 0

Answer:

Spiral Galaxy

Explanation:

Spiral galaxies are named by their spiral structures that extend from the center into the galactic disc. The spiral arms are sites of ongoing star formation and are brighter than the surrounding disc because of the young, hot OB stars that inhabit them.

Talja [164]3 years ago

6 0

Answer:D:normal spiral

Explanation:

You might be interested in

Why do we use atomic models?

vlabodo [156]

Models help us to understand systems and their properties

3 0

2 years ago

A wave is a disturbance that carries

viktelen [127]

Answer:

(D) energy from one place to another

6 0

3 years ago

Which atom contains exactly 15 protons

VMariaS [17]

Every atom with 15 protons in its nucleus
is an atom of Phosphorus.

5 0

3 years ago

Read 2 more answers

A 0.5 kg yellow bouncy ball rolls to the right at a speed of 8 m/s while a 0.25 kg blue bouncy ball rolls

inessss [21]

Explanation:

Let yellow ball be m1 = 0.5kg with u1 = 8 m/s and blue ball be m2 = 0.25 kg with u2 = - 4 m /s respectively.

After collision, blue ball travels 12 m/s.

<u>Using conservation of Linear Momentum</u> :

m1u1 + m2u2 = m1v1 + m2v2

0.5* 8 + 0.25 * - 4 = 0.5 * v1 + 0.25 * 12

v1 = 0 m/sec i.e. <u>Yellow ball comes to rest</u>.

3 0

3 years ago

The potential difference between A and B is 5.0 V. A proton starts from rest at A. When it reaches B what is its kinetic energy?

Aleksandr [31]

Answer:

total kinetic energy is 8 × $10^{-19}$ J

Explanation:

given data

potential difference = 5 V

e = 1.60 × $10^{-19}$ C

to find out

what is kinetic energy

solution

we will apply here conservation of energy that is

change in potential energy is equal to change in kinetic energy

change potential energy is e × potential difference

change potential energy = 1.60 × $10^{-19}$ × 5

change potential energy = 8 × $10^{-19}$ J

so change in kinetic energy = 8 × $10^{-19}$ J

and we know proton start from rest that mean ( kinetic energy is 0 ) so

change in KE is total KE

total kinetic energy is 8 × $10^{-19}$ J

3 0

4 years ago