Solve and answer the following questions. 1. If an object sinks in fluid, a.) the density of the fluid is less than the density of the object b.) none of the above c.) the density of the fluid is more than the density of the object d.) the density of the fluid is equal to the density of the object 2. Water is flowing at 8.0 m/s in a circular pipe. If the diameter of the pipe increases twice its former value, what is the velocity of the water downstream? a.) 8 m/s b.) 2 m/s C.) 16 m/s d.) 32 m/s 3. A natural gas pipeline with a diameter 0.275 m delivers 2.25 cubic meters of gas per second. What is the flow speed of the gas in the pipeline? a.) 30 m/s b.) 32 m/s C.) 27 m/s d.) 38 m/s 4. The following statement is FALSE except a.) When the weight of submerged object is more than the buoyancy force, the object will float b.) It acts in the upward direction C.) A completely submerged object displaces a volume of liquid twice its own value d.) It acts in the downward direction 5. Bernoulli's principle is a statement of a.) Mechanical equilibrium in fluids b.) Energy conservation in dynamic fluids C.) thermal equilibrium in fluids d.) hydrostatic equilibrium6. Water flows continuously through a pipe with different cross-sectional areas. Which section has the greatest flow rate? a.) D b.) A C.) D d.) None. Flow rate is constant. 7. Blood is flowing at the rate of 150 cm^3/s in a capillary of cross section 0.75 m^2. The velocity of the flow is: a.) 20 m/s b.) 200 m/s C.) 2x10^-4 m/s d.) 4x10^-4 m/s 8. What will happen if an object, less dense than the fluid, is immersed in the fluid? a.) It will neither sink nor float b.) It will float C.) It will break d.) It will sink