A 8 g object displaces 50ml of water, what is its specific gravity? 0.16
400
16
8.3

What do radio waves and microwaves have in common? both are at the side of the spectrum that has the shortest wavelengths. both are at the side of the spectrum that has the lowest radiant energy. both are at the side of the spectrum that has the lowest frequency. both are found next to visible light on the electromagnetic spectrum.

May someone explain how to do this question?

Metals are good conductors of electricity because they