Question1
1. Directions of electric field are indicated on field lines. Why don't you have a direction indicated on an equipotential line?
2. Where is location of the largest electric field on an equipotential plot (of a line and a sharp point)?
3. Does silver paint on a conducting sheet form an equipotential? Why or why not give reasons?
Question2
Assume the volume V of some object happens to depend on time t according to the equation V (t) = At3+Bt , where A and B areconstants. Let L and T denote dimensions of length and time, correspondingly. What is a dimension of the constant A?
Question3
All through World War 1, the Germans had a gun called BIg Bertha that was used to shell Paris. The shell had an initial speed of 1.45km/s at initial inclination of 33.2 degrees to horizontal. The acceleration of gravity is 9.8m's^2. How far id shell hit? Answer in km. How long was it in air?