A straight wire of length L has a positive charge Qdistributed along its length. Find the magnitude of the electric field due to the wire at a point located a distance d from one end of the wire along the line extending from the wire . Find

Enet, the magnitude of the electric field at point P due to the total charge.
Express your answer in terms of some or all of the variables Q, L, and d, and the constants ? and ?0.
From what I have done so far the answer does include ?0.

Distinguish between a transverse wave and a longitudinal wave.

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

You are a sales representative for a company that makes a new alternate fuel for vehicles. you have prepared a presentation for the environmental engineers to sell your new product. what question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment? a. do we have to change any parts of the vehicle to use this alternate fuel? b. will the vehicles get better fuel mileage with the alternate fuel? c. how much greenhouse gas does your fuel produce compared with current fuel sources? d. is the alternate fuel more expensive than fossil fuel?