water is pumped from a borehole whose elevation is 564m to a tank in a school compound at an elevation of 2096m. the radius of the pipe at the inlet is 4cm while pressure is 400 kpa. at the exit the radius of the pipe is 2cm. calculate the pressure at the exit.(inlet = 2 m/s)

Assume that two of the electrons at the negative terminal have attached themselves to a nearby neutral atom. there is now a negative ion with a charge -2e at this terminal. what are the electric potential and electric potential energy of the negative ion relative to the electron? the electric potential and the electric potential energy are both twice as much. the electric potential is twice as much and the electric potential energy is the same. the electric potential is the same and the electric potential energy is twice as much. the electric potential and the electric potential energy are both the same. the electric potential is the same and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron. the electric potential is twice as much and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron.