The loudness of sound refer to how loud or soft a sound seems to a listener
The best option for visually representing how one part of data relates
to a whole would likely be a circle graph. This will allow for the
entirety of a data set to be seen at once, as well as providing an easy
way to compare and contrast the different parts and how they relate to
one another.
We are asked to solve for the index of refraction and the formula is n = c/v where "n" represents the index of refraction, "c" represents the speed of light in the vacuum while "v" represents the speed of another medium.
In the problem, we have the given values below:
c = 3 x 10^8 m/s
v = 2 x 10^8 m/s
n =?
Solving for n, we have the solution below:
n = 3x10^8 / 2x10^8
n = 1.5
The answer is 1.5 for the index of refraction.
27.5 because of you divide the 55miles with the time you get your velocity which is the speed.