What can accurately be said about a resultant wave that displays both reinforcement and interference? a. maximum interference occurs where the troughs of the two cmponent waves are in phase b. the crests of the two compnent waves are in phase c. the component waves have different frequencies d. molecules remain in their normal positions at spots reinforcement

The situation that can accurately be said about a resultant wave that displays both reinforcement and interference is that crests of the two component waves are in phase. The answer is letter B.

it would be c. predictability

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.