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Oliga [24]
3 years ago
7

HELPPPP

Physics
1 answer:
Arisa [49]3 years ago
3 0

Answer:

A. nuclear fusion reactions

C. it's still hot from the big bang

Explanation:

The inside of the earth is hot due to some reasons. This heat provides the internal energy the drives processes within the earth interior. Here are some of the ways in which the heat has accumulated:

  • Nuclear reactions within the earth interior by fusion and other radioactive processes releases a large amount of heat.
  • Some heat accreted during the early formation of the earth and has not been lost till this day.
  • Heating due to friction

These are some of the sources of the earth's internal heat.

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What can scan tiny details inside the human body by using principles of electromagnetism.
bija089 [108]

Answer:

magnetic resonance imaging (MRI)

6 0
3 years ago
You are at the park with your little brother, when you notice a small merry-go-round with a radius that looks to be about 1.5 m.
Elodia [21]

Answer:

Explanation:

angle covered in one rotation = 2π radian

θ = ωt + 1/2 αt²

θ is angle rotated in time t with initial angular velocity of ω and angular acceleration α .

Putting the values

2π = 0 + 1/2 x α x 3²

α = 1. 4 radian / s²

linear acceleration =  α x r = 1.4 x 1.5 = 2.1 m / s².

Initial acceleration = 2.1 m /s²

final angular velocity = α t = 1.4 x 3 = 4.2 radian / s

linear velocity = 4.2 x 1.5 = 6.3 m /s

centripetal acceleration = v² / R = 6.3² / 1.5 = 26.46 m /s²

radian acceleration = 26.46 m /s

tangential acceleration = 2.1 m /s²

Total final acceleration = √ ( 26.46² + 2.1² )

= √ ( 700.13 + 4.41)

Final acceleration = 26.53 m / s²

7 0
3 years ago
Which receptors are responsible for the production of saliva (A) auditory receptors (B) optic receptors (C) skin receptors (D) t
Fudgin [204]

Answer:

\large \boxed{\sf D. \ taste \ receptors}

Explanation:

When activated, the receptor most likely prompting the production of saliva is the taste receptor. When food enters the mouth, the salivary glands produce the saliva upon the sensation of taste.

8 0
3 years ago
What is the difference between a psychologist and a psychiatrist?
vfiekz [6]

Answer:

Psychiatrists are medical doctors, psychologists are not. Psychiatrists prescribe medication, psychologists can't. Psychiatrists diagnose illness, manage treatment and provide a range of therapies for complex and serious mental illness. Psychologists focus on providing psychotherapy (talk therapy) to help patients.

Explanation:

5 0
3 years ago
Read 2 more answers
Youre driving on a straight road (in the +x direction) at a constant speed of 27 m/s. In 10 seconds, you speed up to 34 m/s to p
aleksley [76]

To solve this problem we will apply the concepts related to the kinematic equations of linear motion. For such an effect we will define the average speed, as the distance traveled in the established time.

Our values are given under the following conditions:

v_i = 27m/s

x_1 = v_1 *t

x_1 = 27*10 = 270m

The final distance covered in those 10 seconds at 34 m / s would be

x_2 = 34*10

x_2 = 340m

Therefore the average speed would be the sum of those distances in the total travel time

v_{Avg} = \frac{340+270}{20}

v_{Avg} = 30.5m/s

Therefore the average velocity is 30.5m/s

6 0
3 years ago
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