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# Evans Physics

### Physics Formulas

Average velocity X/t
Definition of acceleration (V-Vo)/t
Displacement in terms of V, Vo and t. (1/2)(Vo+V)t
Final velocity Vo+(a)(t)
Displacement in terms of Vo,t, and a. Vo(t)+(1/2)(a)(t^2)
Final Velocity Squared Vo^2+ 2(a)(x)
Newton's Second Law (aka net force) (m)(a)
Friction (the mew sign)(Fn)
Work Fs(cosign of theta)
Net Kinetic Energy (1/2)(m)(v^2)
Work- Kinetic Energy Theorem {W=change in kinetic
Potential gravity: (m)(g)(h)
Potential elastic: (1/2)(K)(X^2)
Power in terms of work and time: W/t
Power in terms of force and velocity: (F)(V)
Momentum (M)(v)
Impulse Momentum Theorem Fav(t)=change in momentum
Centripetal Acceleration V^2/R
Centripetal Force (M)(V^2)/R
Newton's Universal Law (G)(M1)(M2)/(R^2)
Effiency Wout/Win
Torque (R)(F)(sin of theta)
Pressure F/A
Work Done On/By a Gas -P(deltaV)
1st Law of Thermo (DeltaV)= Q + W
Efficiency of a Heat Engine (QH-QC)/ QH
Hooke's Law -kx
Speed of a Wave f(wavelength)
Period of a Pendelum 2
The Mirror Equation 1/f=1/So+ 1/Si
Harmonics for a closed pipe nV/4L
Harmonics for an open pipe nV/2L
Intensity P/4(Pi)r^2
Magnification Hi/Ho= -Si/So
Created by: 93issyjan