Trabalho Individual de Fisica 2

Lista 1 L12 = L23 L132 = 0 Responde con modulo q1/q2 = 4 q1/q2 = -4 q2 = q1 + 1,0 u.C q2 = -3,0 u.C L = 10 cm F13 = F23 K.q1.q3 (x) K.q2.q3 (x+L)^2 1/x = 3/(x+L)^2 1/x = (L+L) X+L = √3X X + 10 = √3X 10 = √3X - X 10 = X(√3 - 1) X = 10/(√3 - 1) X = 13,66 cm X = -13,66 cm = -13,7 cm Lista 2 Ep = 0 d = 3R q1/q2 ? K.q1.R^2 (R^2 + R^2)^{3/2} K.q2.2R^2 [(2R)^2 + R^2]^{3/2} q1/q2 = 2/[(2R)^2]^{3/2} q1/q2 = 2.9R √2.5 d=3R d = 3R d = 3R Et = 2TR L=3^2 + = 9 + 16 4^2 = 25 = 5.0 m SenQ = 3/5 CosQ = 4/5 Epy - Epy = 0 Et = 2.Ex ET = 2.sen.Q . 9 . 10^9.3.20 x 10^-19 / 25 Et = 2.3/5 . 9 . 10^9.3.2 x 10^-19 / 25 ET = 1,38 . 10^-10 N/C Lista 3 Ls = 3,2 mm = 0,0032 m E = 1800 N/C E . A . cos B φ = 1800 . 0,0032 . 0,0032 . cos 145° φ = 0,018432 . cos 145° φ = -0,015 N.m^2/C E = 3,0 mm N/C E . A . cos B φ = E . A . cos B φ = 3 . 10^-3 . 3,1416 . 0,11 . 0,11 . cos 180° φ = 0,1140 = 1,14 . 10^-4 N.m^2/C