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	Equations Motion & Kinematic Equations vf = vi + at d = 0.5(vf + vi)t d=vit+0.5 * at2 vf2 = vi2 + 2 * ad p = mv pa + pb = p'a + p'b y = vyt + 0.5 * at2 x = vxt + 0.5 * at2 Electricity & Circuits Req = R1 + R2 + R3 + Rn (1/Req) = (1/R1) + (1/R2) + (1/R3) + (1/Rn)   Energy & Heat P = VI = I2R = W/t V = IR E = I2Rt V = Ed   Energy & Work W = Fd = change in KE = mg = ma KE = 0.5 * mv2 PE = mgh KEi + PEi = KEf + PEf PE = Vq efficiency = (Wo / Wi) * 100 F = ma Light & Waves f = (1 / T) (1 / f) = (1 / di) + (1 / do) m = (hi / ho) = (-di/do) Gases Boyles Law: P1V1 = P2V2 Charles Law: V1/T1 = V2/T2 Combined Boyles & Charles Laws: PV = nRT