Q/ Four point charges Q. 2Q, -Q. -20 are located at (0,0.a). (0,0.2a). (0.0,-a). and (0,0-2a) respectively. Derive an expression for the potential and the electric field intensity E at the point (x, y,z). Hint: assume what you think is suitable.​

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters