two charges (+3uC on the left of the -5uC) are separated by a distance of 5um on a horizontal line. Point P is located 10um above the 3uC charges. a) Draw a sketch of the setting discussed in the question above. Make sure to label all points. b) calculate the field at point P. c) Calculate the potential at point P. d) the force on a +2uC placed at point P​

Suppose that a cylindrical tank 6 meters high with a radius of 2 meters is filled to the rim with water. the tank is buried so that the top of the tank is 1 meter below ground level. the space above the tank is not filled with water. calculate how much work needs to be done by a pump to pump the water out of the tank up to ground level. (the water weighs 9,800 newtons per cubic meter.)