Answer:
The value of Q is - 8 C
Explanation:
Given;
the magnitude of first charge = 2 C
position of the first charge = 0
_ (2m) 0(+2C) +(2m)(Q)
------------------------------------------------------------------------------------
E₁ --------------------------------->
<------------------------------------------------------------------ E₂
E₁ and E₂ are equal in magnitude but opposite in direction
| E₂ | = | E₁ |

Thus, since E₂ is opposite in direction to E₁, the Q = - 8 C
Answer:
C
Explanation:
when it's cold,the water vapour that atmosphere can hold is much lower....and when moist air have so much water vapour in it...perfect condition for precipitation
B. The location of an object.
The term position describes the location of a place with respect to some reference point called origin.
The speed of the mass : <em><u>v = 0.316 m/s</u></em>
<h3>Further explanation</h3>
The energy used to press a spring is included as the potential energy
Can be formulated:

Ep= potential energy
k = spring constant
x = change in spring length
If the spring is released from its pressure, this potential energy will turn into kinetic energy
so applies the law of conservation of mechanical energy (Em)
Ek = Ep
A mass of 2 kg is attached to a spring, a spring constant of 20 N/m, and the spring is compressed 0.1 m past its natural length.
m = 2 kg
k = 20 N/m
x = 0.1 m

<h3>Learn more</h3>
Hooke's law
brainly.com/question/2648431
Keywords : spring,mass, spring constant,compressed position
Answer:modeled as an electromagnetic wave. In this model, a changing electric field creates a changing magnetic field.
Explanation: