answer all the questions plz

b) It is proposed to install a tidal energy farm at a site where velocity measurements have been taken that are shown in the table below. For design purposes you are required to estimate the key parameters to characterise the site conditions. Seawater kinematic viscosity and density for typical conditions are 1.05106m2/s and 1025kg/m3, respectively. Assuming the data represent a logarithmic layer over a hydraulically fully rough seabed consisting of sand with an unknown grain size diameter, find: 1) the shear velocity and bed shear stress. [10 marks] 2) the grain size diameter of the sand and the shear Reynolds number. [6 marks]