= 4. For a small spherical air bubble rising in water, the drag is approximated by Fp 31uVd, where u is the water viscosity, V is the bubble velocity, and d is the bubble diameter. Find the maximum speed of the bubble starting from rest and the time it takes to reach 95 percent of this speed. Plot the speed (m/s) as a function of time. Assume a bubble diameter of 1 mm and use properties of air and water at 1 atm and 300 K