Microwaves are electromagnetic waves used in broadcasting and telecommunications. When do these waves increase in frequency? A. when the source moves away from you
B. when the source moves toward you
C. when you move away from the source
D. when you move away from the source and the source moves away from you​

Which statement best describes resistance? resistance is a. how well a current will flow in a material and is measured in volts. b. how well a material conducts an electrical charge and is measured in ohms. c. the ability of a material to attract a positive charge to create a current. d. the ability of a material to repel neutral charges and is measured in ohms.

(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

The ability to make things happen is also called a. heat b. force c. matter d. energy