Helium flows through a hose with a fixed diameter. After a point the diameter of the hose doubles in size. Which of the following statements is false? The velocity of the helium will decrease once it enters the larger diameter portion of the hose. The pressure at the larger diameter will be greater than the pressure at the smaller diameter. The volume of helium transported in each time frame will be the same in both diameter sized sections of the hose. You can't fool me, all the above are correct.

What is the cause of air pressure?   Why does the pressure a fluid exerts on the walls of its container decrease when the fluid starts to flow through the container (e.g. a piece of tubing)?   Why is it impossible to pull a fluid?   What does it mean to "entrain a fluid" into a flow?   When the gauge on a cylinder of gas reads zero, is the cylinder actually empty?  Explain.

If you decrease the volume of a gas to 1/2 its original volume, how much bigger or smaller is the pressure of the gas? If you increase the volume to 6 times its original volume, how much bigger or smaller will be the pressure of the gas?

A student observes air bubbles on their metal cylinder when measuring the density. How do you think the presence of bubbles might affect the students' final calculated density (i.e. would it have been to low, too high, or unchanged and why)?

Question list ✔ Question 6 ✔Question 7 Question 8 Question 9 Density of water = 1 lb₂ = 1 g/cm³ = 1000 kg/m³ = 62.4 lb/ft³ = 1.94 slug/ft³ Print Done K During processing, a polymer is pumped through the plant. The pump must produce enough power to move the material a height of 10 meters [m] at a volumetric flowrate of 0.2 cubic meters per second [m³/s]. Assume the specific gravity of the polymer is 0.6262. If the pump is 75% efficient, what is the power rating on the pump (input power) to supply the necessary potential energy in units of horsepower [hp]? Click the icon to view the table of common derived units in the Sl system. Click the icon to view the conversion table. Click the icon to view density of water. The power rating is hp. (Round your answer to one dicimal place.) - X ore Info Length 1 m = 3.28 ft 1 km = 0.621 mi 1 in = 2.54 cm 1 mi = 5,280 ft 1 yd = 3 ft Force 1 N = 0.225 lb, Print Power 1 W = 3.412 BTU/h = 0.00134 hp = 14.34 cal/min = 0.7376 ft lb/s Done X More Info…

a. This is a position vs. time plot of an experimental piston moving up and down. At what time does the piston momentarily stopped moving? b. This is a position vs. time plot of an experimental piston moving up and down. At what time does the magnitude of the velocity the greatest?