1 Watt = 1 N-m/sec
1800 N-m/sec = 1800 Watts
Without being plugged in the machines will not work. The power comes along the wire into the machine.
The first law might allow a perpetual energy machine where energy is extracted from the surroundings to power the machine, but the second law explains why such a perpetual motion machine won't actually be able to work.
1800 saw the very beginning of work in factories. Some of the jobs available then were in the steel and construction industries as the industrial revolution took shape.
1.8 g = 1800 mg1.8 g = 1800 mg1.8 g = 1800 mg1.8 g = 1800 mg1.8 g = 1800 mg1.8 g = 1800 mg
The work done by a machine.
1800 joules / 1 minute = 1,800 joules / 60 seconds = 30 joules per second = 30 watts.
Power
power
Power
This is not true - the machine will work with out power
Force is the ratio of the amount of work the machine can do over the amount of time it takes to do the work.
rate of doing work
It will be often desirable to know the power which is being consumed in operating a lathe on certain work for which data is required. For most purposes this can be sufficiently approximated by calculating the power of the lathe from the width of the belt and its speed in feet per minute. For such purposes it is usual among mechanical engineers to consider that a one-inch belt traveling a thousand feet per minute will transmit one horse-power. This will give us a key to the entire calculation.
"Power" is the rate of work, or of energy transfer.
The efficiency of a machine is found by dividing the amount of work done by a machine by the amount of energy used by a machine. The answer is then multiplied by 100 to give a percentage.
In a real machine, part of the energy (or power) is always wasted.
How long will it take a machine with the power rating of 60 W to 368 rules of work