Answer:
A. f = 8 Hz
B. T = 0.125 s
C. λ = 0.0166 m = 16.6 mm
D. d = 7.98 m
Step-by-step explanation:
A.
The frequency of the wave can be given as:

f = 8 Hz
B.
The time period will be:

T = 0.125 s
C.
The wavelength is given as:

λ = 0.0166 m = 16.6 mm
D.
The distance traveled in 1 minute can be found out as follows:

d = 7.98 m