Question

Sound and waves plz help physics

Answer 1

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 = (n.\ of\ waves)/(time)\\\\f = (360)/(45\ s)\\`

f = 8 Hz

B.

The time period will be:

`T = (1)/(f)\\\\T = (1)/(8\ Hz)\\`

T = 0.125 s

C.

The wavelength is given as:

`\lambda = (c)/(f)\\\\\lambda = (0.133\ m/s)/(8\ Hz)`

λ = 0.0166 m = 16.6 mm

D.

The distance traveled in 1 minute can be found out as follows:

`c = (d)/(t)\\\\d = c\ t\\d = (0.133\ m/s)(60\ s)`

d = 7.98 m