Which statement is true about wavelengths in the electromagnetic spectrum? A. Microwave wavelengths are longer than visible light wavelengths.
B. Microwave wavelengths are longer than radio wavelengths.

Apebble is thrown into a calm lake, ripples are formed from the center and move outward. the water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels a) diagonally. b) downward. c) horizontally. d) upward.

Am i correct on these two physics questions?

Acircular ring of charge with radius b has total charge q uniformly distributed around it. what is the magnitude of the electric field at the center of the ring? 0 keq/b2 keq2/b2 keq2/b none of these answers