Astatic electric field with spherical symmetry is described by , where c and r are constants. rcre r, where e and r are constants. (a) determine the charge density, p(r). [8 points (b) find the total charge of the system. [8 points] (c) find the static electric potential v(r). [8 points] (d) find the total energy stored in the electric field. [8 points] (e) a small test charge +q is released at rest at the radial location r r. what is the kinetic energy when it reaches a point far away?

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

Write the function getkthdigit(n, k) that takes a possibly-negative int n and a non-negative int k, and returns the kth digit of n, starting from 0, counting from the right

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.