You have a summer job working for a swimming pool construction company. Your boss gives you the following task. He is preparing to install a swimming pool that measures (10.0 ± 0.1) m by (17.0 ± 0.1) m. The homeowners have asked for a sidewalk to be constructed around the pool. The sidewalk is to measure (1.00 ± 0.01) m wide by (8.0 ± 0.5) cm thick. Your boss asks you to determine the volume of concrete needed for the sidewalk, along with the approximate uncertainty of this volume.

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.