1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Shtirlitz [24]
3 years ago
10

¿Qué es una onda electromagnética?

Physics
1 answer:
Leya [2.2K]3 years ago
3 0

Answer:

Son aquellas ondas que no necesitan un medio material para propagarse. Incluyen, entre otras, la luz visible y las ondas de radio, televisión y telefonía. Todas se propagan en el vacío a una velocidad constante, muy alta (300 0000 km/s) pero no infinita.

You might be interested in
URGENT!! An astronaut on the International Space Station is doing a spacewalk to fix a solar panel that has malfunctioned. While
aleksley [76]

C because the air will push him closer to the space station

3 0
3 years ago
Read 2 more answers
A train station bell gives off a fundamental tone of 500 Hz as the train approaches the station at a speed of 20 m/s. If the spe
Brut [27]

Answer: 529.9 Hz

Explanation:

Here we need to use the Doppler equation, so we have:

f' = f*(v + v0)/(v - vs)

Here, f is the frequency = 500Hz

v is the velocity of the wave, = 334m/s

v0 is the velocity of the observer = 20m/s

vs is the velocity of the source = 0m/s

Then we have:

f' = 500Hz*(334m/s + 20m/s)/(334m/s) = 529.9 Hz

8 0
3 years ago
The law of reflection says that the angle of incidence is
nekit [7.7K]
The law of reflection states that the angle of incidence is equal to the angle of reflection. Furthermore, the law of reflection states that the incident ray, the reflected ray and the normal all lie in the same plane.

hope this helps :)

4 0
3 years ago
Which of the following statements can be inferred given the food web shown above? A. Energy flows from consumers to producers wi
Zarrin [17]

Answer:A.

Explanation:

4 0
3 years ago
Read 2 more answers
Mass of trolley (m):
Nookie1986 [14]

Answer:

ij

Explanation:

4 0
3 years ago
Other questions:
  • Give a physical description of radio waves and compare and contrast it with the frequency, wavelength, energy and wave speed wit
    6·1 answer
  • 17. Ms. Lopez is being chased by a Komodo dragon. She has an initial velocity of 7 m/s
    6·1 answer
  • A rocket, weighing 4.36 x 10^4 N, has an engine that provides an upward force of 8.90 x 10^5 N. It reaches a maximum speed of 86
    6·1 answer
  • The magnetic field due to the loop always opposes the external magnetic field.(b) The flux due to the loop always has the opposi
    15·1 answer
  • A solid conducting sphere of radius R carries a charge Q. Calculate the electric-field energy density at a point a distance r fr
    7·1 answer
  • A force of 350N is applied to a body. If the work done is 40kJ, what is the distance through which the body moved?
    7·1 answer
  • A 15.0 kg medicine ball is thrown at a velocity of 10.0 m/s to a 60.0 kg person who is a rest on ice. The person catches the bal
    8·2 answers
  • Is the net force on an object moving with uniform velocity zero or not zero?
    8·1 answer
  • 3. A car does an emergency stop from 144 km\h in 4s<br> What was its deceleration?
    11·1 answer
  • Please help I have no idea how to do this
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!