The angle between the two force of magnitude 20n and 15n is 60 degrees (20n force being horizontal) determine the resultant in magnitude and direction

The magnitude of the resultant is 30.4 N.

The resultant angle direction is 25.3°.

Explanation:

To find the resultant of the magnitude and direction for given forces “P” and “Q” are 20 N and 15 N respectively, the angle (θ) between them is 60°.

We know that from triangle law of forces,  

Substitute the given values in the above formula,

R = 30.4 N

The magnitude of the resultant is 30.4 N.

To find the direction of the resultant we know that

Substitute the given values in the above formula,

Resultant angle=25.3°

The resultant angle direction is 25.3°.

the gas collects in coils that then becomes a liquid that then flows through the coils inside the refrigerator

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.