Power mesured in ft lb: the mass of the bullet (weight in grains) times the speed (velocity in feet per second)
how to choose rate of voltage according to power
According to most historians, the first handguns appeared around 1450.
There is no such thing as the 'rate of mechanical power', because power itself is a rate. There's also no such thing as 'mechanical' power as power is a rate, not something that is tangible.
According to http://www.rossiusa.com/company/history.cfm, yes, since 1997.
Yes, handguns have a serial number.
Yes, handguns were used in WWI, and WWII.
Yes, power is the rate at which work is done.
There is no such thing as 'electric power'. Power is simply a rate: the rate at which energy is expended.
Most historians believe handguns were first invented in the mid 1400s.
In most U.S. States, handguns don't require registration.
The term that represents the rate at which work is done is the watt. It is defined as 1 joule per second.
Power is the rate of flow or usage of energy. 1 Watt = 1 Joule per second