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Tresset [83]
3 years ago
15

Please help I found this confusing​

Physics
2 answers:
Triss [41]3 years ago
8 0

Answer:

A

Explanation:

brainliest

34kurt3 years ago
6 0

Answer: A

Explanation:

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What characteristics of EM waves did you discover?
jarptica [38.1K]

The characteristics of electromagnetic waves typically represent as follows:

  • There are changes in the electric and magnetic fields simultaneously so that both fields have maximum and minimum values ​​at the same time and place.
  • The direction of the electric field and the magnetic field are perpendicular to each other. The direction of both is perpendicular to the direction of the wave propagation.
  • The shape of electromagnetic waves is transverse waves.
  • It has general wave characteristics like polarization, reflection, refraction, interference, and diffraction.
  • The amount of the electric field (E) is directly proportional to the magnitude of the magnetic field, with the relationship E = cB.
  • The universal constant of the velocity of electromagnetic waves in a vacuum is \boxed{ \ c = 3 \times 10^8 \ m/s. \ }
  • The speed at which electromagnetic waves propagate depends merely on the electrical and magnetic properties of the medium that it travels on.
  • Because electromagnetic waves do not contain an electric charge, they do not experience any possible deviation in the electric or magnetic fields.
<h3>Further explanation</h3>
  • Two physicists who contributed significantly to developing the concept of electromagnetic waves are Faraday and Maxwell around 1831-1864.
  • From the observations, Faraday suggested that changes in the magnetic field cause an electric charge to flow in the loop of wire, contributing in the emergence of an electric field.
  • Maxwell proposed a reverse process, which is a change in the electric field will generate a magnetic field.
  • As follows, according to Faraday's Law, changes in sinusoidal magnetic fields generate electric fields which also change sinusoidally.
  • Meantime, according to Maxwell's Hypothesis, changes in sinusoidal electric fields generate magnetic fields which also change sinusoidally.
  • Furthermore, there is a process of combining electric and magnetic fields that propagate in all directions called electromagnetic waves.
<h3>Learn more </h3>
  1. About vector components brainly.com/question/1600633
  2. Determine the shortest wavelength in electron transition brainly.com/question/4986277
  3. Particle's speed and direction of motion brainly.com/question/2814900

Keywords: the characteristics, electromagnetic waves, transverse, vacuum, electric fields, magnetic, perpendicular, propagation, Maxwell, Faraday, the speed, polarization, reflection, refraction, interference, and diffraction

4 0
4 years ago
Read 2 more answers
2. Before 0.5-kg ball is dropped from a third story window 20 m above the sidewalk. What is the potential
Flauer [41]

Answer:

C

Explanation:

C

20*9.8*0.5

98

4 0
3 years ago
Read 2 more answers
A surfer is able to stay on the surfboard as she rides the waves. Which explains the force(s) that enable her to do this? A. The
lyudmila [28]
ZC. The forward force of the surfboard's acceleration is balanced by the backward force of the surfer's mass.
3 0
4 years ago
As pitch gets higher, wavelength gets ___________.
Ostrovityanka [42]

Answer:

Shorter

Explanation:

Waves become shorter and closer together as pitch increases

5 0
3 years ago
A 4kg table pushed to the right with an applied force of 50N. The table has a net acceleration of 10 m/s^2 to the right. What is
belka [17]

Answer:

Force of friction is 10 N.

Explanation:

Given:

Mass of the table is, m=4\textrm{ kg}

Force acting towards right, F=50\textrm{ N}

Net acceleration of the table, a=10\textrm{ }m/s^{2}

Let the force of friction acting on the table to the left be f N.

Therefore, net force acting on the table is given as,

F_{net}=F-f=50-f

Now, as per Newton's second law of motion,

F_{net}=ma

Equating the above two equations, we get

50-f=ma\\f=50-ma\\f=50-(4\times 10)\\f=50-40=10\textrm{ N}

Therefore, the magnitude of the force of friction acting on the table is 10 N to the left direction.

3 0
3 years ago
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