Use gauss' law and symmetry to find the electrostatic field as a function of position for an infinite uniform line of charge. let the charge lie along the z-axis and denote the charge per unit length by a (b) repeat part (a) for an infinite cylinder of charge whose axis coincides with the z-axis and whose density is given in cylin- drical coordinates by p(r) = 10. pab. por r

It may possibly be c i think |-/

Iwannasay c is the most accurate

Since you have not included the experiment situation and the data, of course, i can not give you specific details about it. but i can you with this question.1) i will assume that the motion is projectile (parabolic) motion.2) yes, the horizontal distance depends on the horizontal velocity as, naming vx the horizontal velocity and t the time, it is: x = vx × t3) now, observe that the flight time depends on the vertical velocity as, naming voy the initial vertical velocity, t the time and y the vertical distance before reaching the ground: y = yo + voy×t - gt² / 2.the higher the initial vertical velocity (voy) the longer the object will be flying and so t will be higher in the equation for the horizontal distance.that explains the relationship between the horizontal distance and the horizontal velocity.