Answer:
d. Gravity
Explanation:
In the beginning of their lives, stars are formed when clouds of dust and gas are pulled together by gravity.
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<span>Lose weight is the answer you're looking for
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<em>The correct option is</em> D. The initial momentum of the blue and green train combined during the collision is 200 kgm/s.
<h3>
Initial momentum of the blue and green train</h3>
Apply the principle of conservation of linear momentum as follows;
Pi = m1v1 + m2v2
where;
- m1 is mass of blue train
- m2 is mass of green train
- v1 is velocity of blue train
- v2 is velocity green train
- Pi is the initial momentum of the two trains
Pi = (50 x 4) + 30(0)
Pi = 200 kgm/s
Thus, the initial momentum of the blue and green train combined is 200 kgm/s.
Learn more about momentum here: brainly.com/question/7538238
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Answer: f= mass×acceleration
They said t1he scooter so 200× 4
=800N
Explanation:
I am not that sure
Energy comes from the Sun, plants and animals that we eat, to provide us with nutrients we need for energy.
