The flow rate in a water pipe is 8 Liters/min with a pressure difference of 55 PSI.  The radius is increased from 1.5 cm to 1.68 cm while the pressure remains at 55 PSI. What is the new flow rate?

Water flowing through a 2.0-cm-diameter pipe can fill a 300 L bathtub in 5.0 min. What is the speed of the water in the pipe?

2. Given the vectors à = i - j+ k and b = 2i - j- 2k, determine the following: a. the scalar projection and vector projection of å on b b. the angle that b makes with each of the coordinate axes c. the area of the parallelogram formed by the vectors a and b

The pulmonary artery, which provides a horizontal connection between the heart and the lungs, is 8.4 cm long and has an inner radius of 2.6 mm. Blood within the heart is basically at rest. The density of blood is 1050 kg/m3, a little greater than the density of water. If the pressure drop between the heart and lungs is 400 Pa, what is the speed of blood in the pulmonary artery?

Water enters a pipe with a diameter of 2.0 cm at a speed of 15.0 m/s. At what velocity will it come out the other end if the pipe has narrowed to a diameter of 1.5 cm? If the narrow end of the pipe is 1.0 m above the wide end, and the water enters the pipe under a pressure of 5.0 atm, what would be the water pressure when exiting the narrow end?

On a roller coaster ride the total mass of a cart - with two passengers included - is 268 kg. Peak K is at 43.2 m above the ground and peak L is at 26.0 m. At location K the speed of the cart is 17.2 m/s, and at location L it is 12.5 m/s. (The wheel mechanism on roller coaster carts always keeps the carts safely on the rail.) K How much mechanical energy is lost due to friction between the two peaks? Submit Answer Tries 0/10

A fluid passes through the tube with a mass flow rate of 1.50 kg/s. If the tube's diameter narrows to half its original diameter, then its mass flow rate will be, 0.375 kg/s 0.75 kg/s 1.06 kg/s 1.50 kg/s 2.12 kg/s 3.0 kg/s 6.0 kg/s

A water barometer is used to measure air pressure in a duct where the air is being forced to ventilate a building. One end of the barometer is open to the atmosphere, and the other end is open to the inside of the ductwork.  When the tube is bent in the shape of a U, the technician notes that the water level on the side toward the duct is lower than the side toward the atmosphere by 13.4 cm.  What is the pressure difference in N/m2?  The density of water is 1 gm/cm3  or 1000 kg/m3.   Use 9.8 m/s2 for the acceleration of gravity.

A pipe with a radius of 51 cm has water flowing at 5.3 m/s. If water goes into a new pipe with radius 21 cm, how much will the pressure decrease? ΔΡ- unit Pa

At 20°C, the viscosity of water is 1.0x10-3 Pa-s and the viscosity of molasses is 51 Pa-s. Consider two tubes of the same length L, with fixed pressure difference Ap across each pipe. If water flows through Pipe 1 and molasses flows through Pipe 2, and both have the same flow rate Q, what is the ratio of the radius of Pipe 2 to Pipe 1?