16. (a) For the net force to be in the +xdirection, the ycomponents of the individual forces must cancel. The angle of the force exerted by the q1=40µC charge on 320qC=is 45°, and the angle of force exerted on q3by Qis at –θwhere =FHGIKJ=°−tan....12030337 Therefore, cancellation of ycomponents requires ()( )13322||sin 45sin0.02 2(0.030)(0.020)qqQ qkk°=+from which we obtain |Q| = 83 C. Charge Qis “pulling” on
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This note was uploaded on 09/06/2009 for the course PHYSICS 14358 taught by Professor Bolton during the Spring '09 term at Kansas State University.