N = sin i / sin r
sin i -- incident ray angle
sin r -- refracted ray angle
n -- refractive index
so the answer is 1.49 (3s.f.)
*Refractive Index cannot go below 1
The answer that will fill in the blank is the texture gradient. This describes the things seen far from where you are standing, in which it points its different in size and the way how they look denser. It enables the person to give a sense of depth perception because of how the person sees in which it depends on how far or how the person sees it.
C
The potential energy is mgh, she knows the mass, she needs the acceleration due to gravity and the height of the ball
Answer:
An unbalanced force can change an object's motion. An unbalanced force acting on a still object could make the object start moving. An unbalanced force acting on a moving object could make the object change direction, change speed, or stop moving
Explanation:
hope this helps :)