What must be true about the domains in a powerful iron magnet?

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form