Question

please help to solve bothe these questions and the answer should as wht you will see in second photo for both

1.) Two charges are positioned on a grid as shown, where each division is 1 cm. The magnitude of each charge is 2 uc Determine the magnitude and direction of the force vector on EACH charge. You may express the vectors in the notation of your choice. (-1cm,1cm) (1cm,-1cm) + + + 2.) An electron with a mass of 9.11x10 kg starts from rest in a uniform electric field of 390 N/C and accelerates toward the postive plate. How much time does it take for the electron to reach a speed of 270,000 m/s? (express your answer with the most appropriate prefix) OD 0 + + + +

Answer 1

_ force on &, &d will be same (mutual force) Dion will be different ( basically in opposite din) ka,&2 Force gz on two exexted by di q=2uc 4, = 2.40 ro JBcm = 9 x109 x 4x1072 8 x 10-4 L em (by pythagonis theorm | =) 4.5 X10 Fig = 45N F2i = 45N for direction + F2, de qom tano = y Acm 2 - F12 ta- - 3 0 = 450 ] this is -45° . from X axis tanda y=1 I o'= 45° | from & axis, this is 180-45 13507u

-31 election with mass (me) - 9.11x10 kg l Electric E = 390N field) ( T11in1 (777) V = 27x104mis So force on el. =) Fe = QE so accenna So acceleration of ella) = Fe me 19 = l E L = 16 * 10779* 3.90 .68.496x 10min me . g. 11x10-31 Initial relocity (4) =0 so v= alltat : 27810*'mja = 0 + 68.496x10!2mis?xt tang. . t = 3.9 ng

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