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e = 1.6 X 10^-19 C
Dx = x2 - x1, Dt = t2 - t1
	v = dx/dt
	a = dv/dt = d^2x/dt^2
v = vo + at	g = 9.8 m/s^2
x-xo = vot + (½)at^2
v^2 = vo^2 + 2a(x-xo)
x-xo = ½( vo+ v)t
x-xo = vt -1/2at^2	,
DU = Uf - Ui = -W	U=-W∞
DV = Vf - Vi = -W/q0 = DU/q0	V = -W∞/q0
Q = CV
	(parallel)
(series)
	C = k C0
I= dQ/dt
	V = IR
P = IV	P = I^2R=V^2/R
Pemf = Ie	(series)
(parallel)	q(t)= Q(1-e^-t/RC)
I = (e/R)e^-t/RC	q(t) = Qe^t/RC
I = (Q/RC)e^-t/RC, I0 = (Q/RC)
	t =
	, m0= 4p x 10^-7 T^.m/A
B = m0I/2 pr	B = m0nI (solenoid)
F/l = (m0I1I2)/2pa
	B = (m0IN)/(2pr) (toroid)