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formulae-t1-f08[1]

# formulae-t1-f08[1] - Constants and Formulas for Test 1 Phys...

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Unformatted text preview: Constants and Formulas for Test 1, Phys 2306 CONSTANTS 1 m N m2 C2 1 , k= = 8.85 10 12 = 9 109 , 0 = 2 s 40 C 4k N m2 e = 1.6 10 19 C, me = 9.1 10 31 kg, NA = 6.02 1023 , I0 = 10 12 W/m2 c = 3 108 TRYGONOMETRY cos + cos = 2 cos 2 cos + , 2 sin + sin = 2 cos 2 sin + 2 * 2 * 2 * 2A cos cos \$t kx + 2 * A cos (\$t kx) + A cos (\$t + kx + *) = 2A cos \$t + cos kx + 2 A cos (\$t kx) A cos (\$t + kx) = 2A sin kx sin \$t A cos (\$t kx) + A cos (\$t kx + *) = A sin (\$t WAVES C 2 y(x, t) C 2 y(x, t) = v2 2 Ct Cx2 v vstring Pav, string fL = = \$ = f = , T k s 2 k= , s B v uid/gas = , \$= Cy(x, t) 2 = 2f, vy = T s Ct r r Y p RT vsolid = , v= = , M kx) + A sin (\$t + kx) = 2A sin kx cos \$t 5 7 F , mono = , dia = , pmax = BkA 3 5 p p 1 1 Pav Pav 1 1 = F \$ 2 A2 = v\$ 2 A2 , I = , I= , Isound wave = B\$ 2 A2 = v\$ 2 A2 2 2 S 4r2 2 2 I = (10 dB) log10 , I0 = 10 12 W/m2 , fb eat = |f1 f2 | , I0 v vL v = fS (L moving), fL = fS (S moving) v v vS ELECTRICITY F=k q1 q2 ^, r r2 E= F , q0 E=k q ^, p = qd, r r2 Edip ole, U= on the axis = 1 qd 1 p = 3 20 z 20 z 3 = p E, = pE sin *, Some SI prexes: f = 10 15 pE , p = 10 12 , n = 10 9 , = 10 6 , m = 10 3 , k = 103 , M = 106 ...
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