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Space Race
Defend Earth from alien invaders
first kinematic
V = (Vo) + at

second kinematic
delta x = (Vo)t + .5at^2

third kinematic
V^2=(Vo)^2 +2a*change in x

force of gravity between two objects of mass m
GM*M/(r^2)

the electric force between two objects of charge Q
K |q||Q|/r^2

formula for finding the qacceleration due to gravity at the surface of a planet of mass M and diameter d
G M/((d/2)^2)

formula for energy of a spring mass when spring is at maximum displacement
.5KA^2

formula for energy of a spring mass when spring is neither at maximum displacement nor at equilibrium
.5mV^2 + .5KA^2

formula for period of a pendulum
2Pi * sqrt(l/g)

formula for impluse involving time
J= Ft

formula for impulse involving momentum
mV-m(Vo)

formula for height of the block (at the start of a pendulum string) in terms of theta and L
L-LCostheta

isobaric
constant pressure

isothermal
no temp change

isometric
constant volume

heat required to change temperature of a substance
MC(deltaT)

heat required to melt a substance
M(Lf)

heat during an isometric process
n(Cv)(deltaT)

heat during a cyclic process (net heat)
deltaU -deltaW

formula for efficiency of a heat engine using work out
(Wnet)/(Qin)

formula for efficiency not using work out
((Qin)-(Qout))/(Qin)

formula for Carnot efficiency
((Th)-(Tl))/(Th)

what direction is friction?
opposite motion

force of friction
(Fn)(mu)

force of frction on an incline
mgCostheta(mu)d

EMF of a battery having internal resistance R
V+IR

equation for the first law of thermodynamics
deltaU = deltaQ + deltaW

formula for the wavelength (debroglie wavelength) of a moving particle
h/mv

formula for change in internal energy in a cosnstat volume PV process
(3/2)nRdeltaT

formula for finding the momentum of a photon
h/wavelength

formula for current through the resistor when the ten coils are removed from the B field in an amount of time t
(EMF)Rt/10

voltage induced in a rod moving through a uniform magnetic field
BLv

formula for power with current and resistance
(I^2)R

formula for power with current and voltage
VI

formula for power with Voltage and resistance
(V^2)/R

forgotten power equation
FV

formula for finding magnetic flux
BA

new wavelength of light as it enters a new substance
(No)(wavelength)=(Nn)(new wavelength)

new frequency of light as it enters a new substance
frequency never changes for light problems

formula for finding the work function of a metal if the cutoff frequency is known
h(Fo)

formula used to find the heat generated by a resistor after a certain amount of time if the current through the resistor is known
(I^2)RT

units for voltage other than volts
Joules/Columb

change in internal energy during a cyclic process
0

formula relating voltage and electric field
Ed=V

formula for charge stored in a capciator
Q=CV

energy stored in a capacitor
.5CV^2 or .5 Q^2/C or .5QV

electric field in a distance r from a charge
k|Q|/r^2

electric potential a distance r from a charge
KQ/r

formula for finding the stopping potential of a metal for a wavelength if the cutoff frequency is known
(hc/wavelength)=h(Fo) +(Vs)

formula for finding the energy required to move a charged particle from infinity to a point a certain distance away from a charged particle
qV

formula for finding the magnetic field a distance r from a current carrying wire
KI/r

velocity of an electrion as it exitws from the hole
qrB/m

radius of curvature of a charged particle as it enters a uniform magnetic field
m(v^2)/qvB

the units of current other than amps
Columbs/second

the units of power other than watts
joules/second

the force on a charge in an electric field
qE

the force on a charge moving parallel to a magnetic field
no force (right hand rule)

formula to find the gauge pressure at the bottom of a pool
roegh

formula to find the absoluate pressure at the bottom of a pool
(Patm) + (Pgauge)

equation of continuity
AV=(A2)(V2)

velocity of waves on a string if tension is known
sqrt(T/(m/))

formula for centripetal acceleration
(V^2)/r

work energy theorum
net work = delta K

total capacitance of capacitors in series
1/((1/C)+(1/C)..........)

velocity of a molecule of gas
sqrt(3KT/m)

snells law
nSintheta=nsintheta

formula equating energy and mass
e=mc^2

energy of a photon if wavelength is known
hc/wavelength

lens/mirror equation
(1/Do) + (1/Di) = (1/f)

natural frequency of an open tube of length L
1/2wavelength

natural frequency of a closed tube of length L
1/4wavelength

resistance of a wire
pL/A

force a charge in a Bfield
qVB

magnification equation
(Di)/(Do) or (Hi)/(Ho)

formula for constructive interference in a diffraction grating (the chart!)
dSintheta=mwavelength

formula for buoyant force
roeVg

formula for critical angle
(N2)/(N1)

hooke's law
force of a spring = -KA

velocity of a charge traveling at a constant veloc ity through crossed E and B fields
E/B

focal length of a mirror with radius d
d/2

formula for constructive interference in a thin membrane with two phase changes
2nt=mwavelength

type of collision where K is conserved
elastic collision

type of collision where K is not conserved
inelastic collision

type of collision where objects stick togerther
perfectly inelastic collision

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