Calculating power and force
Power calculation formula: 1. P = w / T (average power) 2. P = FV; P=Fvcos α Instantaneous power)
because w = f (f force) × S (s displacement) (the definition of work), so the formula of power can also be derived P = f · V:
extended data:
power economy:
1. The unit of apparent power is KVA, which is used to express the capacity of transformer and UPS in China
The active power is 0.8 times of the apparent power, and the unit is kW The rated power of diesel generator set refers to the power that can run continuously for 12 hours The maximum power is 1.1 times of the rated power, but it can only be used for one hour within 12 hours The economic power is 0.75 times of the rated power, which is the output power of diesel generator set that can run for a long time without time limit. At this power, the fuel consumption is the lowest and the failure rate is the lowestHorsepower is a unit of power. The conversion between them is 0.73, that is to say, when you know the power, the number obtained by dividing power by 0.73 is horsepower. For example, if the power is 73 kW, its horsepower is 100 hp
Definition of work: if an object is affected by a force and has a displacement in the direction of the force, we say that the force has done work on the object
Calculation formula of work: w = f * s (where W is work, f is force, s is the distance in the direction of force)definition of power: power refers to the amount of work done by an object in unit time, that is, power is a physical quantity describing the speed of work
Calculation formula of power: P = w / S = f * V (where p is power, W is work, s is distance, f is force, V is velocity)
extended data:
in one-dimensional motion:
1
If the resultant force on the object is f, and the displacement direction of the initial motion and the final motion is the same as F, then the total work of the object is greater than zero If the resultant force is f, and the displacement direction of initial motion and final motion is opposite to F, then the total work of the object is less than zero Note: there is a difference between the total work and the work of a certain forcepower measurement is used to measure the power consumption of electrical equipment, which is widely used in research and development or proction lines of household appliances, lighting equipment, instrial machines, etc
There are four ways to measure power:(1) diode detection power method
(2) equivalent thermal power consumption detection method (3) true RMS / DC (TRMS / DC) conversion detection power method (4) logarithmic amplification detection power methodI see. Please take it
now the so-called virtual currency is deceptive. Many of them are pyramid schemes
moreover, the central bank has never issued virtual currency at all, and it is illegal for other institutions or indivials to issue virtual currency
or it can be converted to digital format and then summed.