What is the cost of operating a 3.00 w electric clock for an entire year if the cost of electricity is $0.0900 per kwh? (b) a large household air conditioner may consume 15.0 kw of power. what is the cost of operating this ac unit 3.00 h per day for 30 days if the cost of electricity is $ 0.110 per kwh? (c) what is the average power consumption in watts of an appliance that uses 5.00 kwh of energy per day?

Amount  paid = $2.36

amount will  paid = $148.50

average power consumption is 208.33 W

Explanation:

Given data

cost of electricity = $0.0900 per kWh

power = 3 W

power consume  = 15.0 kW

time = 30 days

cost of electricity = $ 0.110 per kWh

to find out

cost of operating , average power consumption

solution

we know that

total hour in year = 365 × 24 = 8760 hours

and amount of electricity consumed in a year = 3W × 8760hr = 26.280 kWh

Amount paid =  8760 hours × 3W × $0.0900

Amount  paid = $2.36

and

we know Amount of electricity consumed in day = 15kW × 3h/day

Amount of electricity = 45 kWh

so in 30 days Amount of electricity = 30 × 45 kWh  = 1350 kWh

so amount will  paid = 1350 kWh × $ 0.110 per kWh

amount will  paid = $148.50

and

here we know average power consumption is = energy consumed / time

so  average power consumption  = 5kWh / 24hr  × 1000

hence average power consumption is 208.33 W

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.

higher potential

explanation:

because it is in a high speed so it must move into a of high potential