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CaHeK987 [17]
3 years ago
13

How does the density of the Earth’s core compare to the other layers of the Earth?

Physics
2 answers:
Annette [7]3 years ago
4 0
<h2>Answer; A). the core is the densest layer</h2>

Because....... <em>The Earth's core is far denser than any of the Earth's other layers. The high density is due to the immense pressure being exerted at the center of the Earth.</em>

Delvig [45]3 years ago
3 0
The answer is A) for sure
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How do I find the cosine of theta.
NNADVOKAT [17]

The value of cos θ in the given figure is 0.98.

<h3>What is cosine of an angle?</h3>

The cosine of an angle is defined as the sine of the complementary angle.

The complementary angle equals the given angle subtracted from a right angle, 90.

cos θ = sin(90 - θ)

For example, if the angle is 30°, then its complement is 60°

cos 30 = sin(90 - 30)

cos 30 = sin 60

0.866 = 0.866

<h3>Cosine of an angle with respect to sides of a right triangle</h3>

cos θ = adjacent side / hypotenuse side

adjacent side of the given right triangle is calculated as follows;

adj² = 10² - 2²

adj² = 100 - 4

adj² = 96

adj = √96

adj = 9.8

cos θ = 9.8/10

cos θ = 0.98

Thus, the value of cos θ in the given figure is 0.98.

Learn more about cosine of angles here: brainly.com/question/23720007

#SPJ1

5 0
1 year ago
A wave pulse traveling to the right along a thin cord reaches a discontinuity where the rope becomes thicker and heavier. What i
Talja [164]

Answer:

the reflected wave is inverted and the transmitted wave is up

Explanation:

To answer this question we must analyze the physical phenomenon, with an wave reaching a discontinuity, we can analyze it as a shock.

Let's start when the discontinuity is with a fixed, very heavy and rigid obstacle, in this case the reflected wave is inverted, since the contact point cannot move

In the event that it collides with an object that can move, the reflected wave is not inverted, this is because the point can rise, they form a maximum at this point.

In the proposed case the shock is when the thickness changes, in this case we have the above phenomena, a part of the wave is reflected by being inverted and a part of the wave is transmitted without inverting.

The amplitude sum of the amplitudes of the two waves is proportional to the lanería that is distributed between them.

When checking the answers the correct one is the reflected wave is inverted and the transmitted wave is up

8 0
3 years ago
Read 2 more answers
Consider what happens at the moment when the block leaves the surface of the globe. Which of the following statements are correc
erma4kov [3.2K]

Answer:

Statement 1 and 3 are correct.

Explanation:

1. The mass moves  downward, so the net acceleration of the block is straight downward.

2.The mass is sliding through the globe, so only the force of gravity is acting on the mass which pulls it in downward direction. The force of gravity has two components [mg sin∅] and [mg cos∅].

6 0
4 years ago
Read 2 more answers
A 50.0-kg wolf is running at 10.0 m/sec. What is the wolfs kinetic energy
Fiesta28 [93]
Kinetic energy = mass time squared speed divided by 2 
W=mv^2/2 = 50*10*10/2 = 2500 J

4 0
3 years ago
Which of the following best describes the velocity of an object
max2010maxim [7]
The definition of volocity is <span>the speed of something in a given direction.</span>
6 0
3 years ago
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