12.5 times 14 and convert to meters its 1.75 meters per second
If he’s walking at a constant velocity there is no acceleration.
Wavelength = velocity/frequency
wavelength = v/f
v= 13km/s = change this to m/s = 13000m/s
f= 14Hz
wavelength = 13000m/s÷14Hz =928.7 m
Oxygen... Hope this Warner helps
