With explanation please Friday homework is due no be ndwritten, not typeset. The

Question

With explanation please Friday homework is due no be ndwritten, not typeset. The multiple- choice at the beginning of Friday lecture. must of the answer is must be answers must be circled. In the the problem, short justification included the space after The open-response answers good physics presentation and will be graded must be worked out clearly using on correctness and in the the on the how carefully the explained. The problems should be worked space after without assignment printout: additional paper may be used needed. No credit will be given for answers any a propriate supporting requires the following: expression with (2) work. Minimum numbers units, (4) of symbolic expressions, not numeric ons, (3) Substitution of Reporting final to allow the with correct and vector expressions. (5) Enough English description reader to have some idea what you are doing without looking at the math. Multiple-Choice Problems Friday Homework Problem 3.1 13 pt(s) J the system of point charges drawn to the right. Two objects with y charge +q and -2q are placed near the origin, 1cm apart on the y axis. What is the approximate direction of the field at a point P a distance 1m along the axis? Select One of the Following: (a) positive a direction (b) negative z direction (c) positive v direction (d) negative y direction (e) The field is zero at point P. Friday Homework Problem 3.2 [3 pt(s) J The figure to the right shows a uniform electric field. Compare the magnitude of the acceleration of a charged particle with charge +g placed at points A and B Select One of the Following

Explanation / Answer

3.1] negative x axis.

it is because the net charge at origin will be -q whichh will cause field at P towards -xaxis

3.2] option a, acceleration is same at both location as mass and forces are same. a=F/m

3.3] E= 2k lambda/r

3 = 2*9e9*0.3e-6/r

r = 2*9e9*0.3e-6/3

= 1800 m

3.4] option a as field do not intersect, and move away from positive charge.

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