What is the unit for rate of work?
One joule
One joule is defined as the amount of work done when a force of one newton is exerted through a distance of one meter. In the English system of units, where force is measured in pounds, work is measured in a unit called the foot-pound (usually abbreviated ft-lb).
What does the unit’s stand for?
Time – second
The seven SI base units, which are comprised of: Length – meter (m) Time – second (s) Amount of substance – mole (mole)
What is the abbreviation that represents the unit for the rate of current?
Table of the SI units, symbols, & abbreviations
| SI Units & SI Unit Symbols | ||
|---|---|---|
| SI Unit Name | SI Unit Symbol | Quantity measured |
| ampere | A | Electric current |
| ampere per meter | A/m | Magnetic field strength |
| ampere per square meter | A/m^2 | Current density |
How do you find rate of work?
Your new formula is R * T * N = W (Rate for each * time * number of workers = total work done).
What is the meaning of base units?
Definition of base unit : one of a set of fundamental units in a system of measurement that is based on a natural phenomenon or established standard and from which other units may be derived The base units of the International System of Units are the meter, kilogram, second, ampere, kelvin, mole, and candela.
What is SI unit short answer?
The answer to what is SI unit is that it is an abbreviation of the French word Système International. The International System Of Units (SI) is the metric system that is used universally as a standard for measurements. It is made up of 7 base units which are used for defining 22 derived units.
Why is A the unit of abbreviation for current?
The ampere (/ˈæmpɛər/, US: /ˈæmpɪər/; symbol: A), often shortened to amp, is the base unit of electric current in the International System of Units (SI). It is named after André-Marie Ampère (1775–1836), French mathematician and physicist, considered the father of electromagnetism.
What is an abbreviation used for A unit time?
Table 4
| Quantity | Unit name | Symbol |
|---|---|---|
| time | minute | min |
| hour | h | |
| day | d | |
| year | a |
How is the rate of doing work related to power?
Power may be defined as the rate of doing work or the rate of using energy. These two definitions are equivalent since one unit of energy must be used to do one unit of work. Often it is convenient to calculate the average power. In the straightforward cases where a constant force moves an object at constant velocity, the power is just P = Fv.
Which is the correct unit to measure power?
The standard unit for power is the watt (abbreviated W) which is a joule per second. The rate of doing work is equal to the rate of using energy since the a force transfers one unit of energy when it does one unit of work. A horsepower is equal to 550 ft lb/s, and a kilowatt is 1000 watts. 1 hp = 745.8 watts.
Is the rate of using energy the same as power?
Power may be defined as the rate of doing work or the rate of using energy. These two definitions are equivalent since one unit of energy must be used to do one unit of work. Often it is convenient to calculate the average power.
Is the time rate of doing work a scalar quantity?
The time rate of doing work. Like work, power is a scalar quantity, that is, a quantity which has magnitude but no direction. Some units often used for the measurement of power are the watt (1 joule of work per second) and the horsepower (550 foot-pounds of work per second).