Assertion: wave's amplitude | /r/HasProperty | proportional
Facets:
value: to cosine
type: LOCATION
Source sentences:
text: A simple transverse wave can be represented by a sine or cosine curve, so called because the amplitude of any point on the curve—i.e., its distance from the axis—is proportional to the sine (or cosine) of an angle.
text: This represents a wave at the original frequency, traveling to the right like the components, whose amplitude is proportional to the cosine of φ / 2 {\displaystyle \varphi /2} .