Answer Happy

(3%) Problem 9: Two charges are to be placed on the x axis. The first, a -2.5 µC charge, is placed at x = 45 cm. ▷ 50% Part (a) If the second charge is +4.5 µC, where should it be placed, in centimeters, to achieve a net zero electric field at the origin? x = cm Grade Summar Deductions Potential Late Work % Late Potential sin() cos tan() 7 HOME T ( EM^^ 8 9 4 5 6 cotan() asin() acos atan() acotan() 1 2 3 sinh() cosh() tanh() cotanh() Degrees O Radians Submissions Attempts remain (0% per attemp detailed view + 0 . END VO BACKSPACE DEI CLEAR 1 2 Submit Hint Feedback I give up! 4 Hints: for a 0% deduction. Hints remaining: 0 Feedback: 0% deduction per feedback. -First do a qualitative assessment of where the charge should be placed in order to get a contribution to the electric field at the origin that is in the right direction. Then relate the magnitudes of the different contributions. A 50% Part (b) If instead the second charge is -4.8 μC, where should it be placed, in centimeters, to achieve a net zero electric field at the origin? 3