physics1029cheat sheet

physics1029cheat sheet - Equations Newton’s 1 st Law F...

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Unformatted text preview: Equations: Newton’s 1 st Law: F netx , y = ΣF x,y = 0 2 nd Law: F netx , y = ΣF x,y = m*a x,y 3 rd Law: F Ab = -F Ba |F| = √F x 2 + F y 2 Weight = m*g W= |F|*|Δy| or |F|*|Δy|*cos θ or F x * Δ x + F y * Δ y ½ * Q * ΔV final W = Δq * ΔV (potential difference) W= F ext /A *(A* Δ x) = -p* Δ V = –p *(V f-V i ) q = C * ΔV W = ΔE = σ* ΔA = σ* l x* Δl y c ions = σ/e | F up | = p*A |F down | =( p+ Δp) *A Pascal’s: p = p atm + ρ*g*d p gauage = p absolute-p air p brain-p feet = -ρ*g*( y brain-y feet ) F net = F up-F down-W object = W F-W object F net = ρ air *V gas cells *g – W ship – W payload – ρ gas *V gas *g = 0 ρ = n*M/V m payload = (ρ air- ρ gas ) V gas cells- m ship Fraction: W - F buoyant /W = ρ brain- ρ fluid / ρ brain ΔE el = ½* C *( ΔV final ) 2 (while charging , V is battery voltage ) |E| = ΔV/y ΔE el = Q 2 /2*C (potential energy when battery is disconnected) q = C* ΔV ΔE el ,final = 1/ κ * ΔE el,initial ( potential energy after dielectric is placed between plates ) C initial = ε *A/b (capacitor when filled with air) C= ε *A/b C final = p= F perpendicular /A p = 1/A* F * n F = p*A A circle = π*r 2 = (π/4)*d 2 A sphere = 4* π *r 2 A Triangle = base*height/2 A cylinder = 2* π *r*h E kin = ½* m*v 2 E pot = m*g*h v final = √(2*W/m)+V 2 initial y at top = E pot /(m*g) Q = c*m* Δ T or C*n* ΔT Q = ΔE thermal ΔU closed = W+ Q t = r 2 * ρ *c/ λ-mb lock *g*Δy = c H2O *m H2O *ΔT ΔT = ΔE thermal / ρ*V*c Charles’s: V/T Boyle’s Law: p*V P=W/ Δ t = F* Δ y/ Δ t = F*v V dead space /V total = f exhaled – f alveoli /f inhaled – f alveoli V tidal /T outside = V lungs / T lungs p pleura = p gap – p atm p alveoli = p lungs- p atm PV = nRT p*V = (m/M)*R*T n= m/M M = (m/V)*(R*T/p) = ρ(R*T/p) M = ρ *V m=n*M v = speed/velocity (m/s) a = acceleration c = specific heat capacity (J/kg* ° C) c = concentration (mol/m 3 ) C = molar heat capacity (J/mol* ° C) W = work (J) / weight p = pressure (Pa) / object distance f = fraction/ focal length q = image distance F = force (N) E = energy (J) A = area (m 2 ) L = length (m) V = volume (L or m 3 ) ρ = density (kg/ m 3 ) m = mass (kg) T = temp (K) / tension (N) Q = heat (J) r = radius/ centre of curvature y = displacement n = moles M = molar mass (kg/mol) Σ = sum of P = power (J/s) or (watts) t = time (s) λ = thermal conductivity (J/(m*s*K)) g = gravitational acceleration R = universal gas constant N A = Avogadro’s constant k = Boltzmann’s constant N = number of = 1/Probability U = internal energy (J) h = height relative to 0 C v = molar heat capacity at constant V ε = internal energy per particle (J/K) v rms = root-mean-square speed η = efficiency coefficient Q/t = flow of heat per time (J/s) D = diffusion coefficient (m...
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This note was uploaded on 11/06/2011 for the course PHYSICS 1029 taught by Professor Zinke-allmang during the Summer '10 term at UWO.

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physics1029cheat sheet - Equations Newton’s 1 st Law F...

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