A question is scientific if you can answer it using which of the following? O A. A survey of other scientists
O B. Thoughts and feelings
C. Observations and measurements
D. A survey of nonscientists

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

This chart shows characteristics of three different types of waves. which statement is best supported by the information in the chart? wave x and wave y are mechanical waves, and wave z is an electromagnetic wave. wave x and wave y are electromagnetic waves, and wave z is a mechanical wave. wave x and wave z are electromagnetic waves, and wave y is a mechanical wave. wave x and wave z are mechanical waves, and wave y is an electromagnetic wave.

Efficiency is the ratio of to for a system a)power in to power in b)power in to power out c) power out to power out d) power out to power in