Answer:
angle of refraction is the same as angle of incidence
Explanation:
I think that peeing might be the correct answer? xD
Answer:
this is just a black bar, I do not understand.
Explanation:
Answer:
C. 4.0 J
Explanation:
Work is equal to the change in kinetic energy or kinetic energy final - kinetic energy initial. 1/2 mv^2 is the equation for kinetic energy. SInce the mass is the same, you don't have to include it when solving. 1/2 times 1^2 = 1/2. 1/2 times 3^2 = 4.5. 4.5 - 0.5 = 4 J