Answer:
therefore critical angle c= 69.79°
Explanation:
Canola oil is less dense than water, so it floats over water.
Given 
which is higher than that of water
refractive index of water 
to calculate critical angle of light going from the oil into water
we know that

now putting values we get

c= 
c=69.79°
therefore critical angle c= 69.79°
Yes it is work because when you throw a ball, you transfer energy to it and it moves.
It’s supposed to be gamma, what are your other options
Answer:
the note is one of the harmonic frequencies for the shower.
I just took the quiz, this is correct. Hope this helps:)
Explanation: