(06.01 MC) A student made the following observations about astronomical bodies.

Observation 1: The sun rises and sets.
Observation 2: The stars move daily across the sky.

Which observation(s) can be explained using the geocentric model?

Select one:
a. Only observation 1
b. Only observation 2
c. Both observation 1 and observation 2
d. Neither observation 1 nor observation 2

C. Both observation 1 and observation 2

Explanation: A geocentric model shows the stars and the sun and where they move to.

God bless. <3

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.

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray