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ddd [48]
3 years ago
12

The difference in the composition of the terrestrial planets and the gas giants can be explained by the different condensation

Physics
1 answer:
miv72 [106K]3 years ago
6 0
The inner planets are usually rocky because the gravitational pull is stronger closer to the star or in this case the sun. The dust and rocky particles that are left over after a super nova or in a nebula will tend to orbit closer to a proto-star when a solar system is in its early days. In our solar system these planets are Mercury, Venus, Earth and Mars. Gases are less dense and will be less affected by the pull of gravity because rocky particles have more mass. The outer planets are gas giants formed from clouds of gas that would be further out in the spinning disk around a proto-star. 
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Lee has a mass of 40.0 kg and ice skates with a speed of 4.6 m/s.
faltersainse [42]

Their common speed is 1.53 m/s.

<h3>What is speed?</h3>

Speed can be defined as the ratio of the distance to the time of a body in motion.

  To calculate their final speed, we use the formula below.

Formula:

  • mu+m'u' = V(m+m')............. Equation 1

Where:

  • m = mass of the Lee
  • m' = mass of Mat
  • u = initial speed of Lee
  • u' = initial speed of Mat
  • V = Their common speed.

make V the subject of the equation

  • V = (mu+m'u')/(m+m')........... Equation 2

From the question,

Given:

  • m = 40 kg
  • m' = 80 kg
  • u = 4.6 m/s
  • u' = 0 m/s

Substitute these values into equation 2

  • V = [(40×4.6)+(80×0)]/(40+80)
  • V = 184/120
  • V = 1.53 m/s.

Hence, Their common speed is 1.53 m/s.

Learn more about speed here: brainly.com/question/3004254

6 0
2 years ago
Dust particles in air have a typical mass of 5.0 x 10-16 kg. They undergo irregular motion due to collisions with air molecules.
Mars2501 [29]

Answer:

Rms speed of the particle will be  38.68\times 10^8m/sec

Explanation:

We have given mass of the air particle m=5\times 10^{-16}kg

Gas constant R = 8.314 J/mol-K

Temperature is given T = 27^{\circ}C=273+27=300K

We have to find the root mean square speed of the particle

Which is given by v_{rms}=\sqrt{\frac{3RT}{m}}=\sqrt{\frac{3\times 8.314\times 300}{5\times 10^{-16}}}=38.68\times 10^8m/sec

So rms speed of the particle will be 38.68\times 10^8m/sec

5 0
3 years ago
What is an analogy of two different roads or rivers to compare a series and parallel circuit?
faltersainse [42]

Answer:

In a series circuit, the same amount of current flows through all the components placed in it. On the other hand, in parallel circuits, the components are placed in parallel with each other due to which the circuit splits the current flow.

5 0
2 years ago
Scientists _____. Select all that apply.
Annette [7]
The true answer is the choice A
Scientists <span>can predict volcanic eruptions as long as adequate resources are available.Volcanic eruptions are one of the earthly activities which can be predicted by means of adequate resources (w</span><span>arming of the earth's crust, appearance of volcanic lava etc...). By contrast, earthquakes is a dangerous natural </span>disaster<span> that scientists cannot be predicted or mastering the time where it occurs.</span>
5 0
3 years ago
When two pool balls collide, what happens to the momentum of each one?
Schach [20]

Answer:

They slow down.

Explanation:

The collided so the slow down till they stop.

7 0
3 years ago
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