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# Phys final

### I just want to pass the class

FB = pgVdisplaced buoyancy
P = 2Y/r pressure (employing surface tension)
P = pgh pressure
ar = w^2 r radial acceleration
0 = 1/2 at^2 angles and
P + pgy + 1/2 pv^2 bernoulli's
F = (P1-P2) A F = 1/2 p(v2^2 - v1^2)A another Bernoulli's I guess
dP = pv^2/2 change in pressure
F = dP l w surface area and pressure to find force
F = nvA/L finding force with viscosity, velocity, area, and length
Q = dP/r discharge with Pressure and radius
Q = (pi d^2/4)v flow rate with radius and velocity
specific gravity just compares the density of something to the density of water. so basically will it float?
pascals principle pressure anywhere at the same depth under the surface will be the same
v = ∆x/∆t find average velocity find change in distance find change in time
a = ∆v/∆t find acceleration find change in velocity find change in time
v = v0 + at find final velocity find original velocity find acceleration find time or change in time
vavg = v0+v/2 find average velocity find final velocity find original velocity
x = x0 + v0t +1/2 at^2 find position find original position find original velocity find time find acceleration
v^2 = v0^2 + 2a(x − x0) find final velocity find original velocity find acceleration find change in position, position, original position
R = v0^2/2g sin^2 2θ find R (radius of projectile motion) find original velocity find angle
h =v0^2/2g sin^2 θ find max height (of a projectile) find original velocity find angle
Fnet = ma find net force find mass find acceleration Newton's 2nd law
FBA = −FAB every action has an equal and opposite reaction, Newton's 3rd law
W = mg find weight find mass find gravity
0 ≤ fs ≤ µsN find force of static friction find coefficient of static friction find Normal force
fk = µkN find force of kinetic friction find coefficient of kinetic friction find Normal force
F/A = Y ∆L/L find force find area find pressure (force/area) find Young's modulus (tensile or elastic modulus) find change in length find original length
Fk = −kx find force find spring constant find compression of spring
W = F d cos θ find work find force find displacement find angle
Wnet = −∆PE = ∆KE find net work find change in potential energy find change in kinetic energy
KE = 1/2 mv^2 find kinetic energy find mass find volume
PEk = 1/2 kx^2 find potential energy of a spring find spring constant find displacement
PEg = mgh find potential energy of gravity find mass find height
KEi + PEi + Wnc = KEf + PEf conservation of energy find initial kinetic energy find initial potential energy find work due to nonconservative forces find final kinetic energy find final potential energy
P = W/∆t find power find work find elapsed time
Eff = Wout/Ein find efficiency find work output find energy input
FG = G mM/r^2 find gravitational force find gravitational constant find mass of object 1 (small) find mass of object 2 (large) find radius of rotation (distance between objects' centers)
I = Favg ∆t find moment of inertia find average force find change in time
p = mv find momentum find mass find velocity
Fnet = ∆p/∆t Linear momentum find net force find change in momentum find change in time
v1 − v2 = v′2 − v′1 conservation of velocity when masses are equal
θ = s/r find angle find arc length find radius
v = rω find velocity find radius find angular velocity
f = 1/T Hertz find frequency find period
ω = 2πf = 2π/T find angular velocity find frequency find period
ac = v^2/r = rω2 find centripedal acceleration find velocity find radius find angular velocity
Fc = m v^2/r = mrω^2 find centrifugal force find mass find velocity find radius find mass find angular velocity
KEtrans = 1/2 mv^2 find translational kinetic energy find mass find volume
KErot = 1/2 Iω^2 find rotational kinetic energy find moment of inertia find angular velocity
Ipoint = MR^2 find moment of inertia find mass find radius
Idisk = 1/2 MR^2 find moment of inertia find mass find radius
Isphere = 2/5 MR^2 find moment of inertia find mass find radius
τ = rF sin θ = r⊥F find torque find radius find angle find perpendicular force
ω = ∆θ/∆t find angular velocity find angle find time
α = ∆ω/∆t find angular acceleration find angular velocity find time
τ = Iα find torque find moment of inertia find angular acceleration
L = Iω find angular momentum find moment of inertia find angular acceleration
τ = ∆L/∆t find torque find change in angular momentum find change in time
P = F/A find pressure find force find area
Pgauge = P − Patm find gauge pressure find specific pressure find atmospheric pressure
ρ = M/V find density find mass find volume
Q = ∆V/∆t = Av find discharge find change in volume find change in time find cross sectional area find velocity
Q = ∆Pπr4/8ηL find discharge find change in pressure find radius of tube find viscosity find length of tube
Power = P Q find power find absolute pressure find discharge (flow rate)
A · v = constant find cross sectional Area find velocity
P + ρgy + 1/2 ρv^2 = constant Bernoulli's find absolute pressure find density find height find velocity
FST = γL find force of surface tension find surface tension find length over which the force acts
P = 4γ/R more surface tension find change in pressure (pin-pout) find surface tension find radius of curvature
h = 2γ/ρgr find height find surface tension find density find radius
RE = ρvL/η = 2ρvr find reynolds number find density find length find velocity find viscosity find radius
xrms = √ 2Dt diffusion find root mean square distance find Diffusion constant find time
x(t) = A cos ωt and xmax = A find displacement as a function of time find Amplitude find time find 2pi/period
v(t) = −Aω sin ωt and vmax = Aω find velocity as a function of time find amplitude find 2pi/period find time find maximum velocity
a(t) = −Aω^2 cos ωt and amax = Aω2 find acceleration as a function of time find Amplitude find 2pi/period find time
E = 1/2 kx^2 + 1/2 mv^2 = 1/2 kx^2max = 1/2mv^2max find energy find force constant find displacement from equilibrium
v = √T/µ with µ =m/L find velocity find period
y(x, t) = A cos(ωt ± kx) with − for left moving wave find find amplitude find 2pi/T * t find constant find displacement
ω = 2π/T and k = 2π/λ find period (T) find k (constant) find wavelength
v = λf = ω/k find velocity of sound find wavelength find wave frequency find 2pi/T find rigidity constant
λn = 2L/n, fn = nv/2L with n = integer string find wavelength find integer find length find frequency
λn = 4L/n, fn = nv/4L with n = an odd integer open-open pipe find wavelength find integer (count full nodes & antinodes) find length of pipe find speed of sound find frequency
λn = 2L/n, fn = nv/2L with n = any integer open-closed pipe find wavelength find integer (count nodes) find length of pipe find speed of sound find frequency
fobs = fs v/v±vs with − for src moving towards obs stationary observer find observed frequency find source frequency find speed of sound find speed of source
fobs = fs v±vobs/v with + for obs moving towards src moving observer find observed frequency find source frequency find speed of sound find speed of observer
fbeat = |f1 − f2| find beat frequency find frequency 1 find frequency 2
I = P/A = P/4πr2 find intensity find power find area find radius
β = 10 log I/I0 in dB with I0 = 10^−12 W/m2 find sound intensity level in decibels find I0 (reference intensity, lowest threshold of hearing) find sound intensity
Created by: haleyBUGoxox

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