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Physics Formula Flashcards

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793494829Time -independent kinematics equationV^2=(V_0)^2+2ax
793494830Netforce∑F = ma
793494831Force in terms of momentumF = dp/dt
793494832ImpulseJ ⃑=∫Fdt
793494833Definition of momentump = mV
793494834Impulse - Momentum TheoremJ =Δp
793494835Force of FrictionF=μF
793494836Work done by a constant force(dot product)w = F*d
793494837Work done by a variable force(integral)W=∫F*ds
793494838Kinetic EnergyE = (1/2)mv^2
793494839Powerp = dW/dt
793494840Power - alternate expressionp = F*v
793494841Work - Energy TheoremW = ΔE
793494842Centripetal Accelerationa= V^2/r
793494843Torqueτ = r × F
793494844Newton's Second law for rotation∑τ =Iα
793494845moment of inertia of a collection particles∑m*r^2
793494846Rotational inertia of a solid sphereI = 2m*r^2/5
793494847Rotational inertia of a rod centerI = ml^2/12
793494848Angular momentum of a moving particlel = r x p
793494849angular momentum of a rigid rotation bodyL = Iω
793494850Position of center of mass for a collection of particlesr=(∑m*r)/M
793494851Conversion between linear and angular velocityω ×r =V →V=rω
793494852Rotational kinetic energyE= (1/2)Iω^2
793494853Force of a springF= -kx
793494854Potential energy of a springU = (1/2)kx^2
793494855Period of a spring mass systemT=2π√(m/k)
793494856Period of a simple pendulumT=2π√(l/g)
793494857Relationships between period, frequency and angular frequency1/T=f=ω/2π
793494858Newton's law of GravitationF=G(m_1*m_2)/r^2
793494859Gravitational Potential EnergyU=-G (m_1*m_2)/r
793494860Coulomb's law (using 4πεo)F=(1/4πϵ) ((q_1*q_2)/r^2)
793494861Definition of Electric fieldE = F/q
793494862Force on Electric Charge by both E and B ("Lorentz Force law")F =q(E +v ×B)
793494863Gauss's Law (closed integral)Φ=∯〖E *dA 〗=q_enc/ϵ
793494864Calculating the potential V from field E (integral)V=-∫E *dr 〗
793494865Electric Potential Due to a Point ChargeV=(1/4πϵ_0 ) (q/r)
793494866Electric Potential: Collection of Point charges (sigma)V=∑V(point) → ∑(1/4πϵ_0 ) (q/r)
793494867Electric Potential Due to a Continuous Distribution of charge (integral)V=1/(4πϵ_0 ) ∫dQ/R
793494868Electric Potential Energy: Collection of Point ChargesU_E=(1/4πϵ_0 ) ∑(Q_i q)/r_i
793494869Capacitance DefinedC=q/V
793494870Capacitance: Parallel-Plate CapacitorC=(kϵ_0 A)/d
793494871Energy Stored in a Charged CapacitorUcap= q^2/2C =1/2 CV^2
793494872Current Definedi = dq/dt
793494873resistanceR = pl/A
793494874Ohm's LawR = V/i
793494875Resistors in seriesR = ∑R
793494876Resistors in parallel1/R = ∑1/R
793494877Capacitors in series1/C = ∑1/C
793494878Capacitors in parallelC = ∑C
793494879capacities time constantτ=RC
793494880Ampere's law∮〖B *ds 〗=μ i_enc
793494881Law of Biot and SavartdB=(μsinθ)/(4πr^2 ) ids
793494882Magnetic Force on a Current Carrying WireF=il×B
793494883Magnetic Field of a Long Straight WireB=(μ_0 i)/2πR
793494884Magnetic Field at the Center of a Circular ArcB=(μ*iφ)/4πR
793494885Magnetic Field inside an ideal solenoidB=μ* in
793494886Inductive Time Constantτ=L/R
793494887Magnetic FluxΦ=∯〖B *dA 〗
793494888Faraday's Lawε=-N (dΦ/dt)
793494889Energy Stored in a Current Carrying InductorU=(1/2)LI^2

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