Power=work over time
= watts(W)
To calculate 200 J of work in 20 seconds would be to calculate the power. You would use the equation power equals work divided by time. This gives you 10 W of power.
Wattage, you mean power. Power = V * I. V - the voltage and I the current.
current=watts(power)/voltage
Divide Watts by Volts ; this gives you Amps.
power multiplied by time
How do you calculate 3ph AC motor power?
To be able to calculate a mi to the second power you need to
You can't "calculate" it...
If you know the power you do not need to calculate it by anything. And if you don't, the answer will depend on what measure you do know!
If you have 3 to the power 2 to the power 2, without any parentheses, you have to calculate from right to left. In this case, calculate 2 to the power 2; then calculate 3 to the power (whatever the result you get). If there are parentheses, do the calculation in parentheses first.
This calculation will give you the ratio, in decibels, between two power values. For example, you can calculate the difference in dB between two amplifiers with different power output specifications calculate in dB Power Ratio.
Usually there is not.
Not enough information. Power = current x voltage. Since voltage can be anything, there is no way to calculate power. Time is irrelevant; though once you have the power, it can help you calculate energy (energy = power x time).
Power = Work/Time Time = Work/Power Work = Power * Time See related links for a power calculator. Insert work and time to calculate power.
17W
magic
the objective lens has the power of that lens inscribed on it