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3 years ago

Which BEST describes the physical properties of the Earth’s core?

Physics

1 answer:

Sonja [21]3 years ago

4 0

C) a solid lower part and a liquid upper part

Explanation:

The physical nature of the earth's core is made up of a solid lower part and a liquid upper part.

The core is the innermost part of the earth and it is made up of metallic minerals.

It has the highest temperature and pressure of all the layers of the earth.
The core is divided into two. Outer and inner core.
Outer core is made up of molten metallic minerals. It is the layer where the earth geomagnetic field originates.
The inner core is solid metallic ball.
Evidence from seismic waves has furnished geoscientists with this knowledge.

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When NASA was communicating with astronauts on the Moon, the time from sending on the Earth to receiving on the moon was 1.33 s.

frez [133]

To solve this problem it is necessary to apply the concepts related to the kinematic equations of movement description, which determine the velocity, such as the displacement of a particle as a function of time, that is to say

$v = \frac{x}{t}\rightarrow x = v*t$

Where,

x = Displacement

v = Velocity

t = Time

Our values are given as,

$v=3*10^8m/s$

$t = 1.33 s$

Replacing we have that,

$x=v*t$

$x=(3*10^8)(1.33)$

$x = 399'000.000m$

Therefore the distance from Earth to the Moon is 399.000 km

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3 years ago

A uniform plane wave traveling in air is incident upon a flat, lossless, and infinite in extent dielectric interface with a diel

dexar [7]

Answer:

Check the explanation

Explanation:

Kindly check the attached images below to see the step by step explanation to the question above.

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3 years ago

An example for curvilinear motion.

Shkiper50 [21]

Ball thrown into the air at an angle.

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What is the name for the bunched up region of<br> air particles in the sound wave?

Leviafan [203]

Answer:

These regions are known as compressions and rarefactions respectively. The compressions are regions of high air pressure while the rarefactions are regions of low air pressure.

Explanation:

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How was the formation of the outer planets affected by their distance from the sun?

djverab [1.8K]

The formation of the outer planets are affected by their distance from the sun with having them to maintain the lighter elements that they are composed of such as the hydrogen and helium, having them far away will also make their planet more cooler as the sun is distant from them.

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