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
pychu [463]
3 years ago
12

Which of the following is NOT true of electromagnetic waves? A. An electric field is created in any region of space in which a m

agnetic field is changing with time. B. A magnetic field is created in any region of space in which an electric field is changing with time. C. Induction of electric fields by changing magnetic fields occurs only if a conducting material is present. D. Induction of magnetic fields by changing magnetic fields occurs even in the absence of a conducting material. Reset Selection
Physics
2 answers:
Iteru [2.4K]3 years ago
6 0
The incorrect statement about electromagnetic waves is C. induction of electric fields by changing magnetic fields only occurs if a conducting material is present.
Electromagnetic waves do not rely on any medium for propagation, which means that the generation of fields is irrespective of the presence of a conducting material. 
Savatey [412]3 years ago
5 0

. C. Induction of electric fields by changing magnetic fields occurs only if a conducting material is present.  is correct

You might be interested in
Fill in the blank: An object is most likely to sink in water if _________________.
drek231 [11]
High density
random words to fill up 20 character minimum for answering questions :P
4 0
3 years ago
Read 2 more answers
When preparing to strip insulation in order to splice conductors, a person should strip the insulation back far enough so that t
Fiesta28 [93]

Answer:

Closely fits into the connector.

Explanation:

It's one of the steps used for the splicing of aluminium conductors in the underground connections. Where we do the strip insulation to splice the conductors by using compression type connectors.

3 0
3 years ago
which characteristic of northern renaissance artworks do albrecht dürer and pieter bruegel the elder share? a. they rarely inclu
VladimirAG [237]
According to my assumptions,the answer closest to the perfection is :

c. they show royalty instead of peasants.
7 0
3 years ago
What is the frequency heard by a person driving at 15 m/s toward a factory whistle emitting a
zmey [24]

Answer:

835.29 Hz

Explanation:

When moving towards the source of sound, frequency will be given by

f*=f(vd+v)/v

Where f is the freqiency of the source, vd is the driving speed, v is the speed of sound in air, f* is the inkown frequency when moving forward.

Substituting 800 Hz for f, 340 m/s for v and 15 m/s for vd then

f*=800(15+340)/340=835.29411764704 Hz

Rounded off, the frequency is approximately 835.29 Hz

4 0
3 years ago
How much force (in Newtons) acts on a 1700 kg car going around a
Daniel [21]

Answer:

b) 4781 N

Explanation:

Because there is a redius do this question is talking about the acceleration force which= mv^2/r

so a=15^2/80=2.8125 m^2/s

so the force will be = m.a

F =1700×2.8125=4781.25 N

5 0
2 years ago
Other questions:
  • In a car how does an air bag minimize the force acting on a person during a collision
    6·2 answers
  • A phoneme is the largest unit of sound in a word. TRUE or FALSE.
    11·2 answers
  • A tennis ball of mass m = 0.060 kg is traveling with a speed of 28 m/s and θ = 35 degrees. It strikes a wall and bounces off wit
    10·1 answer
  • At room temperature, an oxygen molecule, with mass of 5.31x10^-26kg , typically has a kinetic energy of about 6.21x10^-21J. How
    13·1 answer
  • What was different about the fire Montag saw after leaving the river?
    7·1 answer
  • Let w(x)=3x-7.If w(x)=14, find x
    10·1 answer
  • Why would it probably be very difficult to determine the chemical and physical properties of a newly discovered synthetic elemen
    14·2 answers
  • In ce stare mecanica este un televizor fata de masina
    10·1 answer
  • Explain why filing cabinets are<br>designed so that only one draw<br>can be pulled out at a time.​
    7·1 answer
  • A particle begins to move with uniform acceleration. If in the first second it travels 3m
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!