Rino wants a high speed of water when it flows out from his pipe. The rate of water flows from his pipe now is about 10 m/s. (i) If he wants the rate of water flows two times from his rate of water flows now, determine the diameter of the other end of the pipe should he changes. Given the radius of his pipe is 2.0 m. (ii) With the fast rate of water flows that he has now, detemine the volume of water that he can have in 10 minutes.

Bird bones have air pockets in them to reduce their weight—this also gives them an average density significantly less than that of the bones of other animals. Suppose an ornithologist weighs a bird bone in air and in water and finds its mass is 49.3 g and its apparent mass when submerged is 4.06 g (the bone is watertight). (a) What mass (in g) of water is displaced? (b) What is the volume (in cm3) of the bone? (c) What is its average density (in g/cm3)?

(b) Water enters a house through a pipe with an inside diameter of 2.0 cm at an absolute pressure of 4.x 105 Pascal (about 4 atm). A 1.0-cm- diameter pipe leads to the second-floor bathroom 5.0 m above. When the flow speed at the inlet pipe is 1.5 m/s find, the flow speed and pressure in the bathroom.

SITUATION. A cylindrical tank 8m in height is lying in horizontal position with diameter of 3m. Oil is flowing inside the tank at a rate of 0.8 ML/min. How fast is the rate of fluid rising when the height is 1 m? (cont) What is the work done in pumping that amount of fluid at a height 1 m above the top of the tank?