The atomic mass unit is the atomic number of an element plus the number of neutrons in an element. Elements such as carbon, copper and lithium on the periodic table. Atomic Mass = Atomic number + Number of Neutrons.
Answer:

Explanation:
We can solve the problem by using Snell's law:

where
n1 = 1.33 is the index of refraction of the first medium (water)
n2 = 1.00 is the index of refraction of the second medium (air)
is the angle of incidence of the wave in water
is the angle of refraction of the wave in air
Solving for the angle of refraction,

Answer:
3
Explanation:
During a crash 3 types of collisions can occur.
Answer:
Funny answer but works!
Explanation:
Not enough air. Go outside, crack open the window and blow air into the room like you would a balloon then close the window quickly. If it doesn't start bouncing, try giving the house a push. Good luck.
When it is directed at a mirror it is reflected
When it is directed at a glass block it refracts
When it is directed through a prism the light splits to form a spectrum ( red orange yellow green blue indigo and violet )
Hope this is ok