2013_NYJC_H2_Physics_P2_QP

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2 © NYJC 2013 JC2/Prelim/H2/9646/02 Data Formulae uniformly accelerated motion, s = ut + ½at2 v2 = u2 + 2as work done on/by a gas, W = p∆V hydrostatic pressure, p = Ρgh gravitational potential,  = /Gm r displacement of particle in s.h.m. x = xo sin ωt velocity of particle in s.h.m. v = vo cos ωt =  22 xxo  mean kinetic energy of a molecule of an ideal gas E = 3 2 kT resistors in series, R = R1 + R2 + … resistors in parallel, 1/ R =1 / R1 + 1/R2 + … electric potential, V = Q / 4πεor alternating current/voltage, x = xo sin ωt transmission coefficient, T α exp(-2kd) where k =  2 2 8 mU E h   radioactive decay, x = xo exp (-λt) decay constant λ = 21 693.0 t speed of light in free space, c = 3.00 x 10 8 m s-1 permeability of free space, μo =4 π x 10-7 H m-1 permittivity of free space, εo = 8.85 x 10 -12 Fm-1 (1 / (36 π)) x 10-9 Fm-1 elementary charge, e = 1.60 x 10 -19 C the Planck constant, h = 6.63 x 10 -34 J s unified atomic mass constant, u = 1.66 x 10 -27 kg rest mass of electron, me = 9.11 x 10 -31 kg rest mass of proton, mp = 1.67 x 10 -27 kg molar gas constant, R = 8.31 J K -1 mol-1 the Avogadro constant, NA = 6.02 x 10 23 mol-1 the Boltzmann constant, k = 1.38 x 10 -23 J K-1 gravitational constant, G = 6.67 x 10 -11 N m2 kg-2 acceleration of free fall, g = 9.81 m s -2

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