What were some of the most significant musicals in theater history? im asking for theater class : )

Amplitude is: a. the number of waves in a certain amount of time. b. the distance between the top or bottom of a wave and the center of the wave. c. the noise floor acceptable in recording. d. the distance between two identical points on a wave.

Which filming tool represented one of the biggest advancements in filmmaking? super 8 film format betamax standard cinema verita digital video technology

Which of these is a consistent periodic pulse separated into equivalent intervals of time?