Question

0. 1) Three point charges, 0, -0., and are on the comers of an equilateral triangle with sides of length i as shown. What is the magnitude of the total electric force on charge 0,? 1) 0.-.-53x19"CO. - -6 4x10C 0.075 A2314 N 0637N C) 0.940N D) 1.085 NEON 2004 N 03 N 93.766N - 12 210,- -310-9C9,- -410 C1-0.075 A) 222 m) 923 C) 10m 1 E) 165 m 146 6659 H 614 m) 2) Consider the charges shown in question 1.0, is released from rest starting at the position shown, what is the kinetic energy of this charge when it reaches the ongin? Consider only the electric interactions, do not consider gravity in this problem. (1 m. 10 J) 3 & 12 SV, H.-25 R-480 A) 487 W 0.781 W C) 45 W 19 W E60 W 4W G) 105 W 3.25 W

Answer 1

PAGE 03 D 609 60' a + For y Q 360 Q2 > xd 1 - 1 ♡ = Q = 5.3x10-tc Q3 = -6.4x10²C 0.075 m = Electric force on charge da due to to d, and do Enet FK + for on fi - on a first force Oz due to a force Iz due to a 1.0, 02. Cos 60° (-i) toute 0,03 Sun 60*127) Oo O3 Costo (1) + Sinbo 631] 4te la I Os Q3 Ut to lo LIGO l2 Q = 0, 5.3x107c As =

= tods hun 60 (-f) + 0.03 Sen 66 (-)) LITE (12 41T to 12 x 53 & - 2x 910 x 5:3x107x 6.4x107 10.0752 (-9 w 11 93890.56 x 107479 N (-i) 93890,56 x 10 N (-2) 0.9389 N 1-j) Enet 0.94 2 Work 03 done when released rest by electrie forme from of charge when it origin on charge Kinetic reaches energy the Distance covered by charge of is given as A 102 t वा B o, e o % 03

In st. 6 angled triangle AOB, ď ll 4 कार 3 e 2 4. d = 3 l d- 1.73 x 0.075 2 d = oo 64875ba 0.0 6495m electrie forme - work done Fret, d by ł = 0.069905 1-7) m w= 094x 0064875 I as 0.06098 I work done = 0.94 x 0.06495 = 0.06105 Joule 61.05 m

when it reaches Kinetic energy of charge origin 61.05mJ