One kilowatt hour (kwh) is the amount of work or energy generated when one kilowatt of power is supplied for a time of one hour. a kilowatt hour is the unit of energy used by power companies when figuring your electric bill. determine the number of joules of energy in one kilowatt hour.

The definition of Power tells us that it is the amount of Energy supplied during a certain period of time.

In this case 1 kWh is the amount of energy released during a period of 60 minutes to replace a given task.

In practical terms 1kW hour is the equivalent of one thousand Watts, that is

Where

P = Power

E = Energy

t = time

The power is equal to 1000W or 1000J/s through a hour, then

Therefore the number of Joules of energy in one Kilowatt hour are

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.

i believe the answer is a hope it and is correct