A projectile leaves the ground at an angle of 60° to the horizontal. It's kinetic energy is E. Neglecting air resistance, find in terms of E it's kinetic energy at the highest point of the motion.​

Uppose we consider the system of the three capacitors as a single "equivalent" capacitor. given the charges of the three individual capacitors calculated in the previous part, find the total charge qtot for this equivalent capacitor. express your answer in terms of v and c.