Could you please help me solve thisproblem. Note: I solved part (a) and got 7.97

Question

Could you please help me solve thisproblem. Note: I solved part (a) and got 7.97e+04, but this is not theright answer. Please help me out! Thanks!
Suppose q1 = +2.90 µC is no longerat y = 0.600 m, but is now at y = 0.315 m. The charge q2 =+2.90 µC is at x = 0 and y = 0.700 m,and the point 3 is at x = y = 0.700 m. (a) Find the new value ofEnet (in N/C) if q1 isat y = 0.315 m.

(b) Find the new value of ifq1 is at y = 0.315 m.
Could you please help me solve thisproblem. Note: I solved part (a) and got 7.97e+04, but this is not theright answer. Please help me out! Thanks!
Suppose q1 = +2.90 µC is no longerat y = 0.600 m, but is now at y = 0.315 m. The charge q2 =+2.90 µC is at x = 0 and y = 0.700 m,and the point 3 is at x = y = 0.700 m. (a) Find the new value ofEnet (in N/C) if q1 isat y = 0.315 m.

(b) Find the new value of ifq1 is at y = 0.315 m.

Explanation / Answer

the distance between q1 and point 3 is0.7*0.7+0.285*.285] E 1 due to q1=9*109q1*1/d2 similarly the distance between q2 and point 3 is 0.7m E2 due to q2=9*109*q2*1/d2 the resultant of these two will beE12+E22+2E1E2cos angle can be obtained by tan=0.285/0.7 the resultant direction will be given by tan=E2sin/E1+E2.cos

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