A fast ferry takes 4 hours to cross a lake an average speed of 108km/h. On a particular day, it travaled at an average speed of 94km/h for 4 hours. What was the remaining distance?

50.)the diagram below represents the wave fronts produced by a point source moving to the right in a uniformmedium. observers are located at points a and b.compared to the wave frequency and wavelength observed at point a, the wave observed at point b has a(1) higher frequency and a shorter wavelength(2) higher frequency and a longer wavelength(3) lower frequency and a shorter wavelength(4) lower frequency and a longer wavelength