Explanation:
The given data is as follows.
Electric field between plates without dielectric, 
Electric field between the plates with dielectric, 
.
Permittivity of free space, 
= 
Now, we will determine the charge density as follows.
= 
= 
Thus, we can conclude that the charge density on each surface of the dielectric is .
The correct answer is The electromagnetic waves appear more in red color.
<span>Since red is at the low-frequency end of the visible spectrum, we say that light from a receding star is shifted toward red, or redshifted.</span>
Answer:
For sound waves to travel, there is a requirement of medium and density of the medium is considered to be one of the factors on which the speed of sound depends. When the medium is dense, the molecules in the medium are closely packed which means that the sound travels faster.
Explanation:
Answer:
(D) energy from one place to another
Answer:
I do not have enough information to tell
Explanation:
This is deduced due to the fact that if the net force due to B and C on A is zero, the charges on B and C could either be positive or negative depending on the charge on A.
