Please help with this problem, thank you in advance. LECTURE NOTES C Secure l ht
ID: 1533693 • Letter: P
Question
Please help with this problem, thank you in advance. LECTURE NOTES C Secure l https/Awww.webassign netweb/Student/Assignment Responses submit?dep 15291141 Q4 O on points t Prmvious Answert KatzPSE 124 P015. My Nokes o Ask your teacher The figure below shows three charged particles arranged in the xy plane at the coordinates shown, with qa qn 3 02 nc and qc 480 nc. What is the electric field due to these particles at the origin? (Express your answer in vector form.) (-7.60 cm, 3.50 cm) C 60 cm, 3.50 cm) (0, 10.0 cm) submit Answer save Progress Practice Another Version Notes o Ask You 5. O 02 points Previous Answers KatePSE124 P020.Explanation / Answer
given
qA = qB = -3.02 nC ,
qC = 4.8 nC
using the equation
for the electric field " E "
E = K [ ( qA rA / | rA |3 ) + ( qB rB / | rB |3 ) + ( qC rC / | rC |3 ) ]
rA = 7.6 i - 3.5 j
| rA | = 8.36 cm
rB = - 7.6 i - 3.5 j
| rB | = 8.36 cm
rC = 10 j
| rC | = 10 cm
E = K [ ( qA rA / | rA |3 ) + ( qB rB / | rB |3 ) + ( qC rC / | rC |3 ) ]
E = 9 X 109 [ ( -3.02 X 10-9 ( 7.6 i - 3.5 j / 8.363 ) + ( - 3.02 X 10-9 (- 7.6 i - 3.5 j / 8.363 ) + ( 4.8 X 10-9 ( 10 j / 103 ) ]
E = ( - 0.35 i - 1.23 j ) + ( 0.35 i + 1.23 j ) + 0. 432 j
E = 0. 432 j N/C