#### Read Microsoft Word - Physics Reference Tables.doc text version

`Physics Reference TablesPhysical Constant Acceleration due to gravity on Earth Coulomb's law constant Elementary charge Electron rest mass Gravitational constant Proton rest mass Speed of light in a vacuum Speed of sound in air at STP Symbol g k e me G Value 9.8 m /s/s2 9.0 × 109 Nm 2 C1.6 × 10-19 C 9.11 × 10 -31 kg2 6.67 × 10-11 Nm 2 kgmp c1.67 × 10-27 kg 3.00 × 108 m /s 331 m /sThe Index of Refraction for Common Substances Air Alcohol Corn Oil Diamond Glass, Crown Glass, Flint Glycerol Quartz, Fused Water 1.00 1.36 1.47 2.42 1.52 1.61 1.47 1.46 1.33NCDPI Reference Tables for Physics (October 2006)Page 1Mechanicsv = x tEnergyW = Fx P = W = Fv tv = velocity t = timex = positionW = work F = forcex = positionx f = x i + vt x f = x i + vit + 1 at 2 2a = uniform acceleration F= force m = massP = power PEg = mgh KE = 1 mv2 2F = -kxt = time v = velocity PEg = gravitationalpotential energya = v tv = v + 2ax2 f 2 iFg = weight g = acceleration due to gravity on Earth G = gravitational constant d = distance between centers of mass p = momentum ac = centripetal acceleration Fc = centripetal force r = radiusF= ma Fg = mgF= Gm1m2 d2PEs = 1 kx 2 2m = mass h = height KE = kinetic energy k = spring constant PEs = potential energy stored in a springFt = p = mvac = v r22 Fc = mv rNCDPI Reference Tables for Physics (October 2006)Page 2ElectricityF = kq1 q2 d2F = force k = Coulomb's law constant2Series CircuitsV = IRIt = I1 = I2 = I3 = ...P = VI = I 2 R = V Rq = charge d = distance between centers V = electrical potential difference I = current R = resistance P = powerVt = V1 + V2 + V3 + ... Req = R1 + R2 + R3 + ...Parallel CircuitsIt = I1 + I2 + I3 + ... Vt = V1 = V2 = V3 = ...1 = 1 + 1 + 1 + ... R eq R1 R2 R3Mathematical FormulasWave Phenomenaa2 + b2 = c2a cT = 1 fT = period f = frequency v = speedbsin  = a c cos  = b c tan  = a bv = fn= c vn1 sin 1 = n2 sin  2sin  c = n2 n1 = wavelengthn = index of refraction c = speed of light in a vacuumCircumference of a circle = 2 r Area of a rectangle = length × widthn1v1 = n2v2 = angle  c = critcal angleof incidenceArea of a triangle = 1 base × height 2NCDPI Reference Tables for Physics (October 2006)Page 3Electromagnetic Spectrum(measurement in meters) 104 103 102 101 100 10 --1 10 --2 10 --3 10 --4 10 --5 10 --6 10 --7 10 --8 10 --9 10 --10 10 --11 10 --12 10 --13 Microwaves Infrared Radio waves X rays Ultraviolet Gamma raysLonger Wavelength Visible LightShorter WavelengthRedOrangeYellow GreenBlueViolet 4.2×10--7 4.0×10--77.0×10--7 6.5×10--75.9×10--7 5.7×10--74.9×10--7NCDPI Reference Tables for Physics (October 2006) Stock No. 10571Page 4`

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