Given that p = fluid density, V = fluid velocity, L = characteristic length, and p = dynamic ?viscosity. Which of the following quantities is dimensionless

Suppose that a force equal to 7 N is pushing the piston as in (figure 1) and it attains a steady state speed of 3.5 m/s. find the viscosity of the fluid to be used in the system.

1 (a) A plate 0.05mm distant from a fixed plate moves at 1.15 m/s and required a force per unit area of 3.2 N/m? to maintain this speed with using an oil of specific gravity 0.8. Find the dynamic viscosity and kinematic viscosity of the fluid between the plates. 1 (b) Calculate the specific weight, density, and the specific gravity of a liquid having a volume of 663050 cm and weight of 67 kN (ENTER ONLY THE VALUES BY REFERRING THE UNITS GIVEN) 1 (a) The dynamic viscosity of the fluid (in Centipoise) The kinematic viscosity of the fluid (in stokes) 1 (b) Specific Weight in (kN/m³) Density of liquid (in kg/m³) Specific gravity of liquid

% ParametersD = 0.1; % Diameter of the tube (m)L = 1.0; % Length of the tube bundle (m)N = 8; % Number of tubes in the bundleU = 1.0; % Inlet velocity (m/s)rho = 1.2; % Density of the fluid (kg/m^3)mu = 0.01; % Dynamic viscosity of the fluid (Pa.s) % Define the grid size and time stepdx = D/10; % Spatial step size (m)dy = L/10; % Spatial step size (m)dt = 0.01; % Time step size (s) % Calculate the number of grid points in each directionnx = ceil(D/dx) + 1;ny = ceil(L/dy) + 1; % Create the velocity matrixU_matrix = U * ones(nx, ny); % Perform the iterationsfor iter = 1:100    % Calculate the velocity gradients    dUdx = (U_matrix(:, 2:end) - U_matrix(:, 1:end-1)) / dx;    dUdy = (U_matrix(2:end, :) - U_matrix(1:end-1, :)) / dy;        % Calculate the pressure gradients    dpdx = -mu * dUdx;    dpdy = -mu * dUdy;        % Calculate the change in velocity    dU = dt * (dpdx / rho);        % Update the velocity matrix    U_matrix(:, 2:end-1) = U_matrix(:, 2:end-1) + dU;        % Apply…