form_t2_s11

# form_t2_s11 - Formula Sheet for LSU Physics 2102, Exam 2,...

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Unformatted text preview: Formula Sheet for LSU Physics 2102, Exam 2, Spring 11 Constants, definitions: o = 8 . 85 10- 12 C 2 /Nm 2 k = 1 4 o = 8.99 10 9 Nm 2 /C 2 o = 4 10- 7 T m/A c = 3 . 00 10 8 m/s e = 1 . 60 10- 19 C 1 eV = e(1V) = 1.60 10- 19 J dipole moment: ~ p = q ~ d charge densities: = Q L , = Q A , = Q V m e = 9 . 11 10- 31 kg m p = 1 . 67 10- 27 kg g = 9.8m/s 2 Area of a circle: A = r 2 Area of a sphere: A = 4 r 2 Volume of a sphere: V = 4 3 r 3 Kinematics (constant acceleration) : v = v o + at x- x o = 1 2 ( v o + v ) t x- x o = vt- 1 2 at 2 x- x o = v o t + 1 2 at 2 v 2 = v 2 o + 2 a ( x- x o ) Coulombs law: | ~ F | = k | q 1 || q 2 | r 2 Force on a charge in an electric field: ~ F = q ~ E Electric field of a point charge: | ~ E | = k | q | r 2 Electric field of a dipole on axis, far away from dipole: ~ E = 2 k~ p z 3 Electric field of an infinite line charge: | ~ E | = 2 k r Torque on a dipole in an electric field:...
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## form_t2_s11 - Formula Sheet for LSU Physics 2102, Exam 2,...

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