When you approach a yield sign, while trying to enter or merge onto another road, traffic already on that road has the right of way. true or false.?

True.

Explanation:

The road signs that appear on the public road have several designs and each one has a specific meaning and intends to alert or inform the driver about different things.  It is important to pay attention to the signs because they avoid accidents and injuries.

The yield signal is an example of important signals that must be respected. However it is important to remember that when you approach a yield signal, when trying to enter or enter another road, traffic already on the road has the right of way. For this reason, you should expect all the cars that are already in the traffic to pass and when you do not have any cars in sight you can complete your maneuver.

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.