A sphere of radius R has a (non-uniform) volume charge density of rho = A r 3 . a) What is the unit of A. b) Calculate the total charge of the sphere. c) What is the electric filed outside of the sphere? d) What is the electric field inside of the sphere? (20 points) 5) Find the potential energy of the sphere in problem (4)

Awalk up the phase change graph worksheet

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.

Question part points submissions used let p be a point not on the line l that passes through the points q and r. the distance d from the point p to the line l is d = |a × b| |a| where a = qr and b = qp. use the above formula to find the distance from the point to the given line. (3, 1, −1); x = 1 + t, y = 2 − 2t, z = 3 − 3t