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clc
disp("(a)the dynamic and kinematic viscosities of the oil")
d=0.00475; // m
g=9.81; // m/s^2
rho_s=1151; // kg/m^3
rho=880; // kg/m^3
u=0.006; // m/s
F=%pi/6*d^3*g*(rho_s-rho);
rat_d=0.25; // ratio of d/D
rat_F=1.8; // ratio of F/Fo
dynamic=F/(1.8*3*%pi*u*d);
kinematic=dynamic/rho;
disp("Dynamic viscosity = ")
disp(dynamic)
disp("kg/m/s")
disp("Kinematic viscosity =")
disp(kinematic)
disp("m^2/s")
disp("(b) Reynolds number of sphere =")
Re=rho*u*d/dynamic;
disp("Reynolds number =")
disp(Re)
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