(a) 
The frequency of an electromagnetic wave is given by:
where
is the speed of the wave in a vacuum (speed of light)
is the wavelength
In this problem, we have laser light with wavelength
. Substituting into the formula, we find its frequency:
(b) 427.6 nm
The wavelength of an electromagnetic wave in a medium is given by:
where
is the original wavelength in a vacuum (approximately equal to that in air)
is the index of refraction of the medium
In this problem, we have
n = 1.48 (index of refraction of glass)
Substituting into the formula,
(c) 
The speed of an electromagnetic wave in a medium is
where c is the speed of light in a vacuum and n is the refractive index of the medium.
Since in this problem n=1.48, we find
c) migration
Push factors are the reasons why people leave an area. Pull factors are the reasons why people move to a particular area.
<span>The tides are produce by the difference in the moon’s gravitational force across
the earth, creating a bulge on the surface of the ocean and a bulge on the
opposite side of the earth. With this, an </span>oval is seen around
Earth that points toward and away from the moon to show the tidal bulges. This
image shows that the ocean
bulges on both the side of the earth facing the moon and the side opposite the
moon.
Answer:
6180
Explanation:
if he is riding at 10.3 meters per second, and is riding for 10 minuets you multiply 10.3 by 60 for 1 minuet and get 618. Then multiply 618 by 10 for 10 minuets and you get 6180
Answer:
c yan alam konayan e good lock
