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s344n2d4d5 [400]
3 years ago
15

Astronomers have seen stars forming within a nebular cloud. As the nebular cloud condenses and its own gravitational attraction

collapses it, heat and energy build up creating _____.
nuclear fusion
a planet
nuclear differentiation
dust and gas
Physics
2 answers:
forsale [732]3 years ago
7 0
Nuclear fission is the answer
hope it helped!
Alenkasestr [34]3 years ago
3 0
Nebular cloud should be the answer, but i believe nuclear fusion is the closest answer, because it fuses together to become a cloud 

hope this helps
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Physics is really confusing...is there anyone that can show it to me?
coldgirl [10]

Answer:

1.0×10³ N

Explanation:

μs is the static coefficient of friction.  That's the friction that acts on a stationary (non-moving) object when being pushed or pulled.

μk is the kinetic coefficient of friction.  That's the friction that acts on a moving object.

To budge the pig (while it's still stationary), we need to overcome the static friction.

F = N μs

For a non-moving object on level ground, the normal force N equals the weight.

F = mg μs

Given m = 130 kg and μs = 0.80:

F = (130 kg) (9.8 m/s²) (0.80)

F = 1019.2 N

Rounded to two significant figures, the force needed to budge the pig is 1.0×10³ N.

3 0
3 years ago
If I was to build a functioning Scale Model of a dam, what would I need?
anyanavicka [17]
You will need rocks brick and water.
8 0
3 years ago
How to how to how to how
loris [4]

Answer:

Not sure what how to how to how to how means but if you tell me what you need id be happy to help

6 0
2 years ago
Read 2 more answers
A proton in a uniform electric field moves along a straight line with constant acceleration. Starting from rest it attains a vel
Sav [38]

a) The acceleration of the proton is 5.0\cdot 10^{13} m/s^2

b) The time required to reach the given velocity is 2\cdot 10^{-8}s

Explanation:

a)

This is a motion at constant acceleration, so we can use the following suvat equation:

v^2-u^2=2as

where

v is the final velocity

u is the initial velocity

a is the acceleration

s is the distance covered

For the proton in this problem, we have:

v=1,000,000 m/s is the final velocity

u=0 is the initial velocity (it starts from rest)

s = 0.01 m is the distance covered

Solving for a, we find the acceleration:

a=\frac{v^2-u^2}{2s}=\frac{(1,000,000)^2-0}{2(0.01)}=5.0\cdot 10^{13} m/s^2

b)

For this part, we can use the following suvat equation instead:

v=u+at

where:

v is the final velocity

u is the initial velocity

a is the acceleration

t is the time taken for the velocity to change from u to v

We have here the following data:

v=1,000,000 m/s is the final velocity

u=0 is the initial velocity (it starts from rest)

a=5.0\cdot 10^{13} m/s^2

Solving for t, we find

t=\frac{v-u}{a}=\frac{1,000,000}{5.0\cdot 10^{13}}=2\cdot 10^{-8}s

Learn more about accelerated motion here:

brainly.com/question/9527152

brainly.com/question/11181826

brainly.com/question/2506873

brainly.com/question/2562700

#LearnwithBrainly

5 0
3 years ago
Research has shown ____ often depends on one's current status, circumstances, and expectations.
larisa86 [58]

Answer:

A. subjective well-being

Explanation:

A subjective well being does indeed often on the status, expectations and circumstances according to the theory of emotion. Also, there are flashcards on quizlet about this subject so if you want to learn more go there!

6 0
3 years ago
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