[1]- Submerging a cube (1 ft a side) under water (10 ft below) as showing: a) FD required to hold the cube if the cube is Cork (ps = 10 b) Fo required to hold the cube if the cube is steel (ps = 490m) g 4177 Ft [2]- A sphere of 2.2 mm diameter is dropped in water (p = 1000 kg/m, = 1 x10-3 kg m/s). The sphere falls a distance of 10.5 cm in 21 seconds. Assuming steady state conditions (Use equations for Settling of Particles): a) Calculate the density of the sphere. b) If the above sphere is dropped in a fluid of a specific gravity of 0.81 and its terminal velocity was measured as 2.05 cm/s, calculate the viscosity of the fluid.