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
Yuri [45]
3 years ago
14

An electromagnetic wave has a frequency of and is traveling in a vacuum. The magnetic field is given by ______.

Physics
1 answer:
Reptile [31]3 years ago
4 0

Answer:

c) true. With the magnetic field you can determine the Poynting vector and this is equal to the intensity of the wave

Explanation:

An electromagnetic wave carries energy that is given by the vector of poyntíng

     S = 1 / μ₀ E x B

The electric and magnetic fields are related

     E = c B

Substituting

     S = c /μ₀ B² / 2

The two comes from the average value

Let's examine the claims

a) false to determine the wavelength the frequency is needed

b) False. To find the electric field you need the magnetic field

c) true. With the magnetic field you can determine the Poynting vector and this is equal to the intensity of the wave

You might be interested in
Sir wants to see if a new shower cleaner works better in removing soap dirt than his old cleaner.  He uses the new cleaner on on
sergeinik [125]
The independent variable in this problem would be the different types of shower cleaner. The dependent variable would be the shower tiles.
8 0
3 years ago
The catapults on the uss george h.w. bush can launch aircraft from rest to a speed of 150 mph over a distance of 270 feet. find
vlabodo [156]
Hope this helps, have a great day ahead!

8 0
3 years ago
(15 POINTS) Victor drew a diagram to show the life cycle of a low-mass star.
Evgen [1.6K]
The answer is c so the area can grow
4 0
3 years ago
Read 2 more answers
Which of the following concepts helps explain the modern technology used in 3D films?
stealth61 [152]

Answer:

a.

Explanation:

6 0
3 years ago
An object initially at rest experiences an acceleration of 0.281 m/s2 to the South for a time of 5.44 seconds. It then increases
andre [41]

Answer:

12.0 meters

Explanation:

Given:

v₀ = 0 m/s

a₁ = 0.281 m/s²

t₁ = 5.44 s

a₂ = 1.43 m/s²

t₂ = 2.42 s

Find: x

First, find the velocity reached at the end of the first acceleration.

v = at + v₀

v = (0.281 m/s²) (5.44 s) + 0 m/s

v = 1.53 m/s

Next, find the position reached at the end of the first acceleration.

x = x₀ + v₀ t + ½ at²

x = 0 m + (0 m/s) (5.44 s) + ½ (0.281 m/s²) (5.44 s)²

x = 4.16 m

Finally, find the position reached at the end of the second acceleration.

x = x₀ + v₀ t + ½ at²

x = 4.16 m + (1.53 m/s) (2.42 s) + ½ (1.43 m/s²) (2.42 s)²

x = 12.0 m

5 0
3 years ago
Other questions:
  • The Köppen classification system is used as a classification system for
    6·2 answers
  • A 1700kg rhino charges at a speed of 50.0km/h. what average force is needed to bring the rhino to a stop in 0.50s?
    8·1 answer
  • What is cumulative force?
    5·1 answer
  • Which statement best describes the explanatory powers of hypotheses and theories?
    6·2 answers
  • Half-Life refers to radiation levels<br> true or false
    7·1 answer
  • What is the force of a 24.52 kg Television dropped on Pluto (acceleration of 0.59 m/s2)
    5·1 answer
  • Newtons first law of motion states that the velocity of an object doesn’t change if the forces acting on the object are
    5·1 answer
  • What type of force is Ft?
    13·2 answers
  • A 70 kg bicyclist rides his 9.8 kg bicycle with a speed
    13·1 answer
  • 3. A Tylenol has 80 mg of acetaminophen.<br> How many grams is that
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!