Refraction Problem #1 Goal: Find the angular displacement of the ray after having passed through the prism. Hints: 1. Find the first angle of refraction using Snell's law. 19.4712° 2. Find angle ø. (Hint: Use Geometry skills.) 79.4712° Air, n = 1 30° 3. Find the second angle of incidence. 10.52889 Horiz. ray, 4. Find the second angle of refraction, 0, using Snell's Law 15.9° parallel to base 0 Glass, n = 1.5​

true tan speed = ang vel x radius

the area between the graph and the t axis

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.

electrical potential energy =0.072 j

explanation:

electrical potential energy is given by

u= q δv

q= charge=6 c

δv= potential difference and is given by

δv= e d

e= electric field

d= distance=5 mm=0.005 m

δv=2.4 (0.005)=0.012 v

now electric potential energy= u= q δv

u=6 (0.012)

u=0.072 j