1 W is 1 joule per second so I reckon it's 300x60 = 18000 Joules.
(600 Watts) x (4 minutes) = (600 joules per second) x (240 seconds) = 144,000 joules =
144 kilojoules
The answer is 6 Joules ignore the others they think there funny
60000 J
43
60 W
as work done is dot product of force and displacement so cos(90)=0;therfore work done is zero
Work done is equal to Force multiplied by distance:Wd = FxdWd = 324x3Work done = 972 Joules.
as power=P=W/t=Fd/t=(10)(10)/10=10Watt
Work is said to be done where certain displacement is involved. Ex. Of work not done is Coolie carrying Load on his head..
27,000 J
Power input = 700 WEfficiency = 75% so power output = 75% of 700 = 525 W Time = 30 seconds => Work done = 525W * 30s = 15750 W.s = 15750 Joules = 15.75 kiloJoules.
Zero.
If a human adult uses energy athe rate of 100 watts, or 100 joules per second, and sustains this rate for 10 seconds, the work done equals 1 kilojoule.
120 V x 0.75 A = 90 watts2 minutes = 120 seconds90 watts for 2 minutes = (90) x (120) = 10,800 watt-seconds = 10,800 joulesThe motor consumes 10,800 joules of electrical energy during that 2 minutes.If the motor is perfectly (100%) efficient, then that's the amount of work youcan get out of it.In the general case, the amouunt of work the motor can do is (10,800 joules) x the motor's efficiency.
In general the frontal lobe although much of the work is done by the pre-central gyrus.
work = f x s. work = 1000 x 40 40000J
Use the definition of power as energy / time (or the equivalent work / time). Do the calculation for both cases, then compare.
Work done at a rate is measured in HorsePower Knowing that you can convert with Kilowatt hours. 1KWH = 1,000 Watt-hours 30/3600 seconds per hour =120 Watt-hours 125 WATTS = .125KW .125 kW * 120 Watt Hours = 15KWH = (for 30 seconds) 1KWH = 1.3428 HPH (Horse Power Hours) 15KWH = 20.142 HPH 20.142 HPH = 1hp/3600 seconds 20.142 HPH /120Horse Hours = .016785 HP for the work done by your microwave in 30 seconds.
A dc motor running on a potential difference of 25 volts draws 9.8 A. It lifts a load of 48 pounds 12 feet in 5.5 seconds. How much work does the motor do? How much power does it deliver? How much poser does it consume? What is its efficiency?
Multiply the watts by the seconds: 500 x 300 = 150,000 Joules is the answer.
I have no idea, but don't put a regular motor under water, i just did, and it stop working in 3 seconds...