Material a is air, material b is water with index of refraction 1.33 and material c is glass with index of refraction 1.52. the incident ray from the air makes a 30 degree angle with the norma, travel through water and to glass. find the directions of the refracted rays, and the displacement between the starting point of the second refracted ray to the incident ray.

the answer is to check all of them! they all apply well at least i think so!

the answer is a. the yacht traveled from the dock north to the 200-meter marker in the bay in less than 5 minutes, giving the passengers several more hours to fish.

im doing peak rn so sry if its wrong

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.

there are no contact forces mentioned on the list of choices that you've provided.