Question

please help me with 13th​

Answer 1

(1) wave velocity

since b is coefficient of t , and c is coefficient of x,

v = coefficient of t/ coefficient of x

also known as

v = omega/k

Answer 2

Answer: velocity

Explanation:

b = w = 2(pi)/t

c = k = 2(pi)/(lambda)

b/c = lambda/t = velocity