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
Kamila [148]
3 years ago
11

Electromagnetism consists of what two processes?

Physics
2 answers:
kherson [118]3 years ago
5 0

Answer: it’s A and B

Explanation: everyone else on this post was giving you the wrong answer.

3241004551 [841]3 years ago
4 0

Answer:

A: An electric current produces a magnetic field, and B. A moving magnet produces an electric current

Explanation:

I know I'm late and you've probably already done this. Hope you had a Merry Christmas and a Happy New Year!

You might be interested in
How does the temperature of water change when it is heated on a stove top and then begins to boil?
guapka [62]

Answer:

C

Explanation:

First the water heats up to the boiling point ( temp increases)

  then, as it boils it remains at constant temp ( boiling point)

5 0
2 years ago
A dog travels 18 meters south across the backyard in 11 seconds. What is the dog's speed?
o-na [289]
The dog’s speed is
A) 0.61 m/s
4 0
4 years ago
In scientific notation, (6.2 x 10^4) x (3.3 x 10^2 ) equals ____________________.
castortr0y [4]
You will get 20460000 as your answer which is broken down into, 2.046 x 10^7 as your number has to be between 1-10.
5 0
3 years ago
Read 2 more answers
If the current through a 20-Ω resistor is 8.0 A , how much energy is dissipated by the resistor in 1.0 h ? Express your answer w
marshall27 [118]

Answer:

P(3600)=593.247W

Explanation:

First, let's find the voltage through the resistor using ohm's law:

V=IR=20*8=160V

AC power as function of time can be calculated as:

P(t)= V*I*cos(\phi)-V*I*cos(2 \omega t-\phi)  (1)

Where:

\phi=Phase\hspace{3}angle\\\omega= Angular\hspace{3}frequency

Because of the problem doesn't give us additional information, let's assume:

\phi=0\\\omega=2 \pi f=2*\pi *(60)=120\pi

Evaluating the equation (1) in t=3600 (Because 1h equal to 3600s):

P(3600)=160*8*cos(0)-160*8*cos(2*120\pi*3600-0)\\P(3600)=1280-1280*cos(2714336.053)\\P(3600)=1280-1280*0.5365255751\\P(3600)=1280-686.7527361=593.2472639\approx=593.247W

5 0
4 years ago
If you could shine a very powerful flashlight beam toward the Moon, estimate the diameter of the beam when it reaches the Moon.
grin007 [14]

To develop this problem it is necessary to apply the Rayleigh Criterion (Angular resolution)criterion. This conceptos describes the ability of any image-forming device such as an optical or radio telescope, a microscope, a camera, or an eye, to distinguish small details of an object, thereby making it a major determinant of image resolution.  By definition is defined as:

\theta = 1.22\frac{\lambda}{d}

Where,

\lambda= Wavelength

d = Width of the slit

\theta= Angular resolution

Through the arc length we can find the radius, which would be given according to the length and angle previously described.

The radius of the beam on the moon is

r = l\theta

Relacing \theta

r = l(\frac{1.22\lambda}{d})

r = 1.22\frac{l\lambda}{d}

Replacing with our values we have that,

r = 1.22*(\frac{(384*10^3km)(\frac{1000m}{1km})(550*10^{-9}m)}{7*10^{{-2}}})

r = 3680.91m

Therefore the diameter of the beam on the moon is

d = 2r

d = 2 * (3690.91)

d = 7361.8285m

Hence, the diameter of the beam when it reaches the moon is 7361.82m

8 0
4 years ago
Other questions:
  • Which is colder, 0°C or 20°F?
    14·2 answers
  • Which of the following would be the least reliable source of information?
    5·1 answer
  • The sunlight hits the surface of a lake this will like caused
    10·2 answers
  • The Sl unit for speed is
    5·1 answer
  • The copernican model of the universe was supported by
    8·1 answer
  • Water on a smooth floor can made you slip, which means water is also a lubricant. Can you think of reasons why oil and grease an
    13·1 answer
  • Thirty-five percent of all school-age pedestrians killed in school transportation-related crashes were between the ages of
    12·1 answer
  • The Clean Air Act emphasizes that one way to prevent and reduce air pollution is to involve public participation true or false
    6·2 answers
  • What is the difference between what happens to the light waves when they reach the "golden" colored mask
    15·2 answers
  • Respostas <br> 100 J<br> 200 J<br> 300 J<br> 400 J<br> 500 J
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!