Get the answers you've been looking for with the help of IDNLearn.com's expert community. Join our interactive Q&A community and access a wealth of reliable answers to your most pressing questions.
Answer:
0.61
Explanation:
The general equation of a progressive wave:
y = A sin (wt ± kx) where A is the amplitude, w = angular frequency and k = phase number.
Therefore, a transverse travelling wave represented by D = 0.61 sin (4.2x + 47t),
the amplitude of this wave is 0.61