The power rating of a resistor is the maximum power the resistor can safely dissipate without too great a rise in temperature and hence damage to the resistor.
a) if the power rating of a 15kω resistor is 5.0 w, what is the maximum allowable potential difference across the terminals of the resistor?
express your answer using two significant figures.
b) a 9.0kω resistor is to be connected across a 120-v potential difference. what power rating is required?
express your answer using two significant figures.
c) a 100.0 ω and a 150.0 ω resistor, both rated at 2.00 w, are connected in series across a variable potential difference. what is the greatest this potential difference can be without overheating either resistor?
d) what is the rate of heat generated in a 100.0 ω resistor under these conditions?
e) what is the rate of heat generated in a 150.0 ω resistor under these conditions?

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.

false

hope this : d