Find the amplitude and frequency of the following waves:

Question

Find the amplitude and frequency of the following waves:

20 sin 377t

12 sin 2π 120t

10⁶ sin 10000t

-8 sin 10058t

Answer 1

A wave function is defined as

A * sin ( 2* pi * f * t)

|A| = amplitude

f = frequency

for 20 sin (377t), the amplitude is 20, frequency is 377/6.28 ~ 60