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I need help on parts b-e please

(11 select part em 10: Four point charges of equal magnitude \( Q=35 \mathrm{nC} \) are placed on the corners of a rectangle of sides \( D_{1}=25 \mathrm{~cm} \) and \( D_{2}=12 \mathrm{~cm} \). The charges on the left side of the rectangle are positive while the charges on the right side of the rectangle are negative. Use a coordinate system where the positive \( y \)-direction is up and the positive \( x \)-direction is to the right.
Hints: \( \quad \) deduction per hint. Hints remaining: 3 Feedback: \( 2 \% \) deduction per feedback. A 20\% Part (c) Calculate the vertical component of the net force, in newtons, on the charge which lies at the lower left corner of the rectangle. A 20\% Part (d) Calculate the magnitude of the net force, in newtons, on the charge located at the lower left corner of the rectangle. A 20\% Part (e) Calculate the angle of the net force vector relative to the \( +x \) axis, with the positive direction being counterclockwise from the positive orizontal axis. Enter an angle between \( -180^{\circ} \) and \( 180^{\circ} \).