Help please it’s urgent A fisherman notices that one wave passes the bow of his anchored boat
every 3 seconds. He measured the wavelength to be 8.5 meters. How fast
are the waves traveling?

1.)2.83m/s
2.)0.283m/s
3.)28.3m/s

Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.