Alarge boulder falls from an underwater ledge and crashes on the floor of the ocean. a pod of dolphins is 800 meters away. determined how long it takes for the soundof the crash to reach the dolphins.
o.5 sec
o.3 sec
2.3 sec
1.9 sec

Explain in physical terms how a microwave oven works. what would happen when you put a conductor in the microwave oven? explain.

Patricia is trying to compare the average rainfall of new york to that of arizona. a comparison between these two states for the months of july through september would best be measured in

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.