Brody and ethel are arguing about waves. brody says that waving his hand back and forth is a scientific wave. ethel says that it is not. which statement best describes who is correct?
-brody is correct because the wave involves an input of energy.
-ethel is correct because energy is not carried from one place to another.
-brody is correct because the pattern repeats.
-ethel is correct because the motion has no pattern.



khalad is measuring the amplitude of a wave. what can be known about this wave?
-it is a sound wave.
-it is a transverse wave.
-it is an electromagnetic wave.
-it is a mechanical wave.