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lozanna [386]
3 years ago
7

15. Describe how the speed of sound would change as it first travels through a

Physics
1 answer:
lapo4ka [179]3 years ago
4 0
Through the compact molecules of a solid sound would move at its slowest.

Through the loose molecules of a liquid sound would move moderately.

Through the very spacious molecules of a gas sound would move very fast.
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What are the4 spheres on earth
Anon25 [30]

Answer:

northen henisphere,southern hemisphere, Eastern hemisphere, Western hemisphere.

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Why is acceleration measured in meters
Setler [38]
Acceleration is measured in meters per second square.
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In the four terrestrial planets, the densest, heaviest materials are at the center and not evenly distributed throughout the pla
Gala2k [10]

<em>The question is incomplete. Please read below the missing content.</em>

B) The 4 terrestrial planets have to as soon as were hot sufficient to be molten (like a liquid).

Terrestrial planets may be described as any planet of the sun machine or any exoplanet that is "Earth-like" in the experience that it is composed primarily of metals and rock, in evaluation to a planet that's a fuel large.

In the sun machine, the terrestrial planets are the inner planets closest to the solar, i.e. Mercury, Venus, Earth, and Mars.

Scientists believe that the densest, heaviest substances are at the center and not evenly allotted can be due to the truth that they need to once be warm enough to be molten. In this example, density will take region, making the heavier below and the lighter on the pinnacle.

In the four terrestrial planets, the densest, heaviest materials are at the center and not evenly distributed throughout the planet. Scientists interpret this observation to mean that:

a.the four terrestrial planets must once have been inside the Sun

b.the four terrestrial planets must once have been hot enough to be molten (like a liquid)

c.the four terrestrial planets must have formed where Jupiter and Saturn now are

d.the four terrestrial planets must have collided with each other many times

e.none of the above

Learn more about terrestrial planets here brainly.com/question/11862047

#SPJ4

3 0
2 years ago
Describe electronegativity, and explain the trend of electronegativity in the Periodic Table
vaieri [72.5K]

Explanation:

Electronegativity is the property of an atom that attracts the shared pair of an electron to itself. There is a trend in the periodic table.

While moving down in a group, the electronegativity decreases. This is due to the reason that as we move down the number of shells added and so the electron become very far from the pull of the nucleus.

As we move across a period the electronegativity increases. This is because of the no. of charge on the nucleus increase.

8 0
3 years ago
A mail carrier leaves the post office and drives 2.00 km to the north. He then drives in a direction 60.0° south of east for 7.00
den301095 [7]

Answer:

\theta=7^o

Explanation:

<u>Displacement</u>

It is a vector that points to the final point where an object traveled from its starting point. If the object traveled to several points, then the individual displacements must be added as vectors.

The mail carrier leaves the post office and drives 2 km due north. The first displacement vector is

\vec r_1=\ km

Then the carrier drives 7 km in 60° south of east. The displacement has two components in the x and y axis given by

\vec r_2=\ km=\ km

Finally, he drives 9.5 km 35° north of east.

\vec r_3=\ km=\ km

The total displacement is

\vec r_t=\ km+\ km+\ km

\vec r_t=\ km

The direction can be calculated with

\displaystyle tan\theta=\frac{1.39}{11.28}=0.1232

\boxed{\theta=7^o}

7 0
3 years ago
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