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Illusion [34]
3 years ago
15

What is dark energy?

Physics
1 answer:
expeople1 [14]3 years ago
4 0
Dark energy is a theoretical repulsive energy that causes the acceleration to the expansion of the universe. Among the choices, the nearest answer would be D. Dark energy can also be defined as a new form of energy, that is a dynamic field that fills up space but has an effect opposite to that of normal energy.
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Two objects, each with a charge of +0.15 C are separated by a distance of 3 meters.
Mrac [35]

Answer:

A . Are the masses repelling or attracting

answer:

<em><u>So, positive energy densities ("masses") attract each other by gravitational interaction. This is the general idea.</u></em>

<em><u>B</u></em>. What is the magnitude of the electrical force between the objects<em><u>?</u></em>

<em><u>answer</u></em><em><u>:</u></em>

<em><u> </u></em><em><u>The magnitude of the electrostatic force F between two point charges q1 and q2 is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them.</u></em>

C. What would the magnitude of the force be if one of the charges was 1/3 the amount?

answer:

<em><u>0.45</u></em>

D. ) What would the force be if the distance between the charges was only 1 meter (with the original charges)?

answer;

<em><u>Fmin=2.3×10^−28</u></em><em><u>N</u></em>

<em><u>E</u></em><em><u>:</u></em><em><u> </u></em>What would the force be if one of the charges was 1/3 the amount AND the distance was 1 meter?

answer;

<em><u>Electrostatic force is directly related to the charge of each object. So if the charge of one object is doubled, then the force will become two times greater.</u></em>

<em><u>#</u></em><em><u>CARRYONLEARNING</u></em><em><u>:</u></em><em><u>)</u></em>

<em><u>LOVEUALL</u></em>

6 0
3 years ago
Displacement is which of the following types of quantities?A. vectorB. scalarC. magnitudeD. dimensional
agasfer [191]

Answer: A. vector

Explanation:

Movement is the change of position of a body at a certain time. The body that experiences this change of position is called mobile.

In this sense, the <u>displacement</u> is the distance in a straight line between the initial and final position of this mobile, which differentiates it from <u>the trajectory, </u> which is the <u>path followed by the body in its movement and a scalar magnitude.</u>

Hence, the displacement is a vector.

6 0
3 years ago
The less energy a wave has, the ________
Softa [21]

Answer:

The less energy a wave has, the smaller the amplitude

Explanation:

Hope this helps!!!

5 0
3 years ago
A fan spins at 6.0 rev/s. You turn it off, and it slows at 1.0 rev/s2. What is the angular displacement before it stops
Komok [63]

Answer:

Angular displacement before it stops = 18 rev

Explanation:

Given:

Speed of fan w(i) = 6 rev/s

Speed of fan (Slow) ∝ = 1 rev/s

Final speed of fan w(f) = 0 rev/s

Find:

Angular displacement before it stops

Computation:

w(f)² = w(i) + 2∝θ

0² = 6² + 2(1)θ

0 = 36 + 2θ

2θ = -36

Angular displacement before it stops = -36 / 2

θ = -18

Angular displacement before it stops = 18 rev

4 0
3 years ago
Select the correct answer.
Eddi Din [679]

Answer:

I think it would be using a battery recet

Explanation:

7 0
3 years ago
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