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KatRina [158]
2 years ago
14

A yellow train of mass 100 kg is moving at 8 m/s toward an orange train of mass 200 kg traveling in the opposite direction on th

e same track at a speed of 1 m/s. They collide and stick together! What is the final momentum of the new combined train?
A. 100 kgm/s
B. 600 kgm/s
C. 800 kgm/s
D. 80 kgm/s
Physics
1 answer:
Art [367]2 years ago
6 0

Answer:

Let the momentum of the orange train be positive

P = 100 * 8 - 200 * 1 = 600 kg-m/s

P(final) = 600 kg-m/s

P / M = 600 kg-m/sec / 300 kg = 2 m/s    

Answer-B     final momentum = 600 kg-m/s

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Keith_Richards [23]

Answer:

They have the same amount of energy

Explanation:

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3 years ago
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Given that the density of heptane is

d_h=\frac{0.684g}{mL}

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The volume of heptane will be

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The total volume of liquid in the cylinder will be

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The total volume of liquid in the cylinder will be 82.32 mL.

7 0
10 months ago
From Earth to the center of our galaxy is about 300,000 light years, meaning that light coming from a star in the center of our
natima [27]
<span>it takes about about 37,200 years for light to travel 1 light year. So the answer would have to be false. It would take way longer than 300k years

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the calculation would be:
</span><span>
t = d / s </span>
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Answer:hi

Explanation:

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