# esheet7 - Physics 21 Fall 2007 speed of light in vacuo...

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Physics 21 Fall, 2007 Equation Sheet speed of light in vacuo c 3 . 00 × 10 8 m/s Gravitational constant G 6 . 67 × 10 11 Nm 2 /kg 2 Avogadro’s Number N A 6 . 02 × 10 23 mol 1 Boltzmann’s constant k B 1 . 38 × 10 23 J/K charge on electron e 1 . 60 × 10 19 C free space permittivity ± 0 8 . 85 × 10 12 C 2 /N m 2 free space permeability µ 0 4 π × 10 7 Tm/A gravitational acceleration g 9.807 m/s 2 Planck’s constant h 6 . 626 × 10 34 Js Planck’s constant/(2 π h = h/ 2 π 1 . 055 × 10 34 Js electron rest mass m e 9 . 11 × 10 31 kg proton rest mass m p 1 . 6726 × 10 27 kg neutron rest mass m n 1 . 6749 × 10 27 kg atomic mass unit u 1 . 6605 × 10 27 kg 1 / (4 π± 0 ) k 8 . 99 × 10 9 Nm 2 /C 2 F 2on1 = 1 4 π± 0 q 1 q 2 ( r 1 r 2 ) | r 1 r 2 | 3 F = q E d E (at r )= 1 4 π± 0 dQ ( r r ± ) | r r ± | 3 E = −∇ V E = µ ˆ i ∂V ∂x + ˆ j ∂V ∂y + ˆ k ∂V ∂z V f V i = R f i E · d l V = 1 4 π±
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## This note was uploaded on 02/29/2008 for the course PHYSICS 21 taught by Professor Hickman during the Spring '08 term at Lehigh University .

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