Answer:
The electric field dE due to charge dQ is given as:
dE = (KdQ/r) * r^.
r^ is vector position
r^ = sqrt(x2 + a2). Pythagoras theorem.
K is electrostatic constant. K = 1/4πe(0)
Step-by-step explanation:
Good question. It is important to know the answer.
The 9 means that there are a total of 20 objects. You want to select just 9 of them.
The situation is well described by C.
23/137
im guessing i hope u get it right.
