Aconical shaped container has 2.4 meters of oil (sg=0.9) and 1.5 meters of water (sg=1). it has a 1.2m diameter top and a 3.0m bottom with a constant slope between these diameters over the total height of 3.9 m. it is open to the atmosphere at the top. calculate the force on the bottom of the container (answer in kn)

Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c