Which device is similar to a sandwich that has layers of semiconductors?
O A. A capacitor
O B. A battery
O c. A transistor
O D. A resistor

Astring that is fixed at both ends has a length of 1.05 m. when the string vibrates at a frequency of 91.0 hz, a standing wave with five loops is formed. (a) what is the wavelength of the waves that travel on the string? (b) what is the speed of the waves? (c) what is the fundamental frequency of the string?

Distinguish between a transverse wave and a longitudinal wave.

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity