Which one of the following are vectors: Power, decibel, work, frequency, amperage?
107239
Work. All of the others don't have a "direction" associated with them.
763289
You need to post some details - then I can post an answer...\n\nIn general, P = V*I = V^2/Z\nso calculate the complex impedance Z (= R+jX)\nthen take the real component of the complex power.
876892
Pressure, volume/specific volume, temperature, entropy, enthalpy, specific heat, atomic weight, and thats all I can think of off the top of my head
391607
greater frequency = greater energy\ngreater energy = shorter wavelength\ngreater wavelength= lower frequency
38597
P= work/time and work is = to force x distance so its 500x4 =2000joules\nand 2000/4 =500 watts
463421
KE = mv\nWrong: energy <> momentum\n\n2y = (2 m)cos(kx)\nRight: a lenght =  lenghth x a number between -1 and +1\n\nvf = vi + ax\nWrong: x should be t\n\ndensity = volume/mass\nWrong: fraction should be inverse
158584
Try,\n\nhttp://www.personal.psu.edu/faculty/d/x/dxh40/MBLemma.pdf
8457
Amp is a measure of current, which is HOW MUCH electricity flows. There is a relation that can be found between an AMP and how many electrons per unit time.\nVolt is a measure of electric FORCE.\n\nSo, with more FORCE, you can push MORE electrons through a restriction, OHMS.
268227
Power is directly related to amperage by the voltage, P=I*V.
129024
ohm, or om is correct. om is supposedly the sound vibration when the universe was created
249841
Work equals the vectors of energy.
1130014
V=IR\n\nWire 1:\n50 = 2 * R1 => R1 is 25 ohms\nCurrent = 2 amps\npower = V*I = 2*50 = 100 watts\n\nWire 2: \n100= 2* R2 => R2 = 50 ohms\nCurrent=2amps\npower = V*I = 100*2 = 200 watts\n\nare you looking for ratios when you say "compare" ?\nif yes: ratio of resistances is  1:2\nratio of currents is 1:1\nand ratio of power is 1:2
1002547
OK...power factor is not only because of phase shift...\n\nPower factor is the ratio of real power P as measured in watts to apperent power S as measured in volt-amperes.\n\nwhich in simple, time-inverant, linear systems (circuits) which can only have the following items:\n\n1. resistors\n2. capacitors\n3. inductors.\npower factor reduces to VI cos(theta).\n\nif there are any non-linearities in you circuit (such as transistors, diodes, scr's, transformers, etc.) your power factor will not be different.\n\nNote: the core of a transformer is nonlinear and as such your power factor is off from the convention of VI Cos(theta).  This is generally taken into account with the "stray losses" of your transformer.
794735
tonic, major, duet, measure, flat,duration
802388
Power factor is a term used when referring to electricity. Power as it is commonly referred to is made up of three different types of Power. They are measured in Watts (W), Volt-Amps (VA), and Volt-Amps Reactive (VARs). Power Factor is a Percentage that represents the relationship of the three types of power. If you have a purely resistive load, W=VA and there is 0 VARs, thus there is 100% power factor. VARs are created when there are inductive or capacitive loads in the circuit. So when there are VARs, the amount of "W" will be less than "VA".\n\nPlease refer to this website to help clarify this mess: http://www.powerstudies.com/content/resources/Diane%20Power%20Factor.pdf \n\nIn short Power Factor=Watts/Volt-Amps.
851884
They are unitary vectors in that their magnitude = 1 so that i dot j = i dot k =j dot k =1 . one being unity.\n\nThey do not have _units_ like displacement, velocity, magnetic field strength associated with them as they are designed to provide a general standardised framework for vector analysis where the vector quantities manipulated may be any sort of physical vector property.
332766
Force is a vector quantity as it has both magnitude (size) and direction.