3. A wave in a 12m rope is shown in a diagram in one second
l<- 12m
a) What is the wavelength of this wave
b) If the frequency of the wave is 2 Hz, what is the wave speed?

Iassume the answer is 75 feet. inwards to outwards rather than outwards to inwards. probably be 75.hachures are stokes drawn in direction of the steepest slope. a series of short parallel lines drawn on a map to indicate topographic relief. it is actually called hachures on contour lines. the small marks in the center of the feature are called hachures.observe the picture attached