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KiRa [710]
2 years ago
12

What makes the planets gravity?

Physics
1 answer:
anyanavicka [17]2 years ago
3 0
The presence of mass makes gravity. Doesn't matter whether it's a planet, a black hole, a puppy, or a speck of dust.
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He discovered that the orbits of planets are ellipses.
bezimeni [28]

Answer:

Kepler

Explanation:

Kepler discovered that the orbits of planets are ellipses.

6 0
3 years ago
Read 2 more answers
A truck of mass 8000 kg is moving with a velocity of 50 km/h and collides with a bus of mass 5000 kg coming from opposite direct
liraira [26]

Answer:

A: 456

B: Because the shoes press down on the mud and get taken in

C:643

D:Because e = mc2 divided by 3 equals a = 3 equals 4.321a

Explanation:

6 0
2 years ago
A train travelling at 20 m/s has 2 000 000 J of kinetic energy. What is the mass of<br> the train?
Svetlanka [38]

Answer:

<h2>10,000 kg</h2>

Explanation:

The mass of the train can be found by using the formula

m =  \frac{2k}{ {v}^{2} }  \\

k is the kinetic energy

v is the velocity

From the question we have

m \frac{2(2000000)}{ {20}^{2} }  =  \frac{4000000}{400}  =  \frac{40000}{4}  \\

We have the final answer as

<h3>10,000 kg</h3>

Hope this helps you

3 0
3 years ago
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How long does it take a wave to travel 1200 meters with the speed of 3 X 108m/sec?
Vladimir79 [104]
Around 3.70 seconds unless traveling through media

5 0
3 years ago
Use the vocabulary in the Word Bank to complete the following explanation.
ahrayia [7]
Where’s the vocabulary?
5 0
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