The answer is B. The wave is very long.
Answer:
Explanation:
A turbine and generator produce the electricity
"A hydraulic turbine converts the energy of flowing water into mechanical energy. A hydroelectric generator converts this mechanical energy into electricity.
Answer:
True
Explanation:
Magnetic field lines outside of a permanent magnet always run from the north magnetic pole to the south magnetic pole. Therefore, the magnetic field lines of the earth run from the southern geographic hemisphere towards the northern geographic hemisphere.
Having a vacuum prevents conduction from occurring completely bc there are no molecules to transfer the heat...since air is a poor conductor of heat, having trapped air in the sponge and hollow plastic stopper help prevent heat loss by conduction