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
Usimov [2.4K]
4 years ago
12

Which of the following is a true statement? A. Electromagnetic waves consist of only changing electric fields. B. Electromagneti

c waves are longitudinal waves. C. Electromagnetic waves do not always need a medium to travel. D. Electromagnetic waves can vary in speed, wavelength and frequency.
Physics
2 answers:
lora16 [44]4 years ago
8 0

Answer:

C. Electromagnetic waves do not always need a medium to travel

Explanation:

just olya [345]4 years ago
7 0
C. Electromagnetic waves don't always need a medium to travel. Note that they do vary in wavelength and frequency however their speed is fixed. Also, EM waves are always transverse and they consist of vibrating electric and magnetic fields.
You might be interested in
The two-way table below gives the thousands of commuters in Massachusetts in 2015 by transportation method and one-way length of
forsale [732]

Answer:

wow uh what? hdfgdfgf

Explanation:?

7 0
3 years ago
Read 2 more answers
Select whether the argument is an example of a deductive or an inductive argument:
viva [34]
The answer is a inductive
7 0
4 years ago
when an element tends to lose its valence electrons in chemical reactions , does it behave more like a metal or nonmetal
Juli2301 [7.4K]

It behaves more like a metal

Explanation:

When an element tends to lose its valence electrons in chemical reactions, they behave more like a metal.

Metals are electropositive.

Electropositivity or metallicity is the a measure of the tendency of atoms of an element to lose electrons.

This is closely related to ionization energy and the electronegativity of the element.

  • The lower the ionization energy of an element, the more electropositive or metallic the element is .

Metals are usually large size and prefers to be in reactions where they can easily lose their valence electrons.

When most metals lose their valence electrons, they attain stability.

Non-metals are electronegative. They prefer to gain electrons.

learn more:

Reactivity brainly.com/question/6496202

#learnwithBrainly

4 0
4 years ago
PlzHELP
Naddika [18.5K]
 Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion.Displacement<span> is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.

</span>To calculate displacement<span>, simply draw a vector from your starting point to your final position and solve for the length of this line. If your starting and ending position are the same, like your circular 5K route, then your </span>displacement<span> is 0. In physics, </span>displacement<span> is represented by Δs.
 
 For me to solve this I would need to know the time, but I can give you a handy displacement calculator I used that helped me. 
 
https://www.easycalculation.com/physics/classical-physics/constant-acc-displacement.php

Hope I helped. 

</span> 

8 0
3 years ago
Please help I need this fast
STALIN [3.7K]

Answer:

0 m/sec

Explanation:

b/c they were at rest and initial means at rest ,at rest means 0 HOPE THIS HELPS

8 0
3 years ago
Read 2 more answers
Other questions:
  • Determine the current I flowing through a solenoid, if the magnetic flux inside its core is found to be 1.30 10-4 Wb. The radius
    14·1 answer
  • A tennis ball is dropped from a height of 10.0 m. It rebounds off the floor and comes up to a height of only 4.00 m on its first
    8·1 answer
  • A strand of 10 lights is plugged into an outlet. How can you determine if the lights are connected in series or parallel? Select
    8·1 answer
  • How are sound waves different from light (and other electromagnetic, waves?
    11·1 answer
  • Tim jogs a distance of 7.2 km to the west. Then he turns south and jogs 1.4 km. West is the resultant if Tim's jog back to the b
    6·1 answer
  • What is the acceleration of a 1000 kg car subject to a 550 N net force
    10·1 answer
  • Light emitting diode (LEDs) light bulbs have become required in recent years, but do they make financial sense? Suppose a typica
    12·1 answer
  • An equiconvex lens has power 4D. what will be the radius OF curvature of each
    13·1 answer
  • For typical rubber-on-concrete friction, what is the shortest time in which a car could accelerate from 0 to 70 mph? suppose tha
    13·1 answer
  • Example of a balanced force
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!