5/17/10

Everything I Ever Learned In Physics

This isn't even the half of it! It's been a long haul.

s = x1 - x0
x = vxt
v1 = v0 + at
x = v0t + 1/2at2
x = 1/2(v0 + v1)t
v12 = v02 + 2ax
(In two dimensions use x & y components)
Net Force F = ma
Fg = Gm1m2/r2
FN = mg sin(theta)
Ff = mu FN
W = Fs
Ek = 1/2mv2
W = Ekf - Ek0
Ug = mgh
E = Ek + Erot. + Ug + Us + Wf + ... (Other forms)
Ef = E0
P = W/t
P = Fv
J = Ft
p = mv
Ft = mv1 - mv2
m1v1f + m2v2f = m1v10 + m2v20
xcm = (m1x1 + m2x2 + ...)/(m1 + m2 + ...)
v = 2*pi*r/T
ac = v2/r
Fc = mv2/r
tan(theta) = v2/(rg)
v2 = GMp/r
T2 = 4*pi2r3/(GMp)
Wap = mg + ma
s = r(theta)
vT = r*omega
aT = r*alpha
omega1 = omega0 + alpha*t
theta = 1/2(omega1 + omega0)t
theta = omega0t + 1/2*alpha*t2
omega12 = omega02 + 2*alpha*theta
theta = omega*t
ac = r*omega2
torque = Fr
xcg = (W1x1 + W2x2 + ...)/(W1 + W2 + ...)
I = k*mr2 (k tends to = 1/2, 2/5, etc.)
WR = (tau)*(theta)
EkR = 1/2I*omega2
PR = I*omega
F = kx
Us = 1/2kx2
x = Acos(omega*t)
v = -A*omega*sin(omega*t)
vmax = A*omega
omega = (k/m)1/2
2*pi*f = (mgL/I)1/2
rho = m/V
P = F/A
mdot = dm/dt
A1v1 = A2v2
Q = Av
P2 - P1 = (1/2mv22 + mgy2) - (1/2mv12 + mgy1)
delta L = alpha*L0*delta T
delta V = beta*V0*delta T
Q = cm*delta T
Q = mL
delta U = Q - W
W = P*delta V
W = nRT*ln(Vf/V0)
Q = Cn*delta T
e = W/QH
QH = W + QC
QC/QH = TC/TH
delta S = (Q/T)R
f = 1/T
v = F*lambda
v = (T/m/L)1/2
y = A*sin(2*pi*ft - 2*pi*x/lambda)
I = P/(4*pi*r2
decibels = 10*log(I/I0)
fo = fs(v +- vo)/(v +- vs)
sin(theta) = lambda/D or 1.22*lambda/D
fbeat = f2 - f1
fn = n(v/2L) n = 1,2,3,4... or n(v/4L) n= 1,3,5,7...
e = 1.60 x 10-19 C
F = kq1q2/r2
k = 8.99 x 109Nm2/C2
E = F/q0
E = kq/r2
E = q/A/eo
WAB = EPEA - EPEB
V = EPE/q0
VB - VA = -WAB/q0
V = kq/r
E = delta V/delta x
q = CV
k = E0/E
C = keoA/d
E = 1/2CV2
I = delta q/delta t
V = IR
R = rho*L/A
rho = rho0*[1 + alpha*(T - T0)]
R = R0*[1 + alpha*(T - T0)]
P = IV
P = I2R
P = V2/R
RS = Sum (Rn)
1/RP = Sum (1/Rn)
CS = Sum (1/Cn)
CS = Sum (Cn)
F = qvB*sin(theta)
r = mv/qB
F = ILB*sin(theta)
torque = NIAB*sin(theta)
B = mu0I/(2*pi*r)
B = Nmu0I/(2R)
B = mu0nI
c = f*lambda
c = (e0mu0)-1/2
u = 1/2e0E2 + 1/(2mu0)B2
E = cB
S = S0cos2(theta)
theta i = theta r
f = R/2
1/do + 1/di = 1/f
M = hi/ho = -di/do
n = c/v
n1sin(theta 1) = n2sin(theta 2)
sin(crit. theta) = n2/n1
sin(theta) = m*lambda/d, m = 0,1,2,3...
sin(theta) = m*lambda/W, m = 1,2,3...
theta = 1.22*lambda/D
Ei - Ef = hf
Ln = n*h/(2*pi), n = 1,2,3,...
rn = 5.29 x 10 -11n2/Z
En = -(13.6eV)Z2/n2
1/lambda = RZ2(1/nf2 - 1/ni2)
E = nhf, n = 0,1,2,3,...
E = hf
Kmax = hf - work function
p = h/lambda
E = mc2

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