Hello I am one of Mandaria’s friend who ask you the physics question before I have also had some own physics

Question

Hello. I am one of Mandaria’s friend, who ask you the physics question before. I have also had some own physics

questions. As you know, I am not very good at physics. Could you please just provide only answers please.

I have attached these questions for the attachment.

SOLUTION TO THE PHYSICS TASK Use this formula to evaluate the net electric field at the point of interest: Q
Q r
Er k inner outer 3 2
Router r
Thus,
Er 2.7284 105 N / C
Therefore,
Er 272835 N / C…
Science