A 23 m3 box is completely submerged in a fluid. What volume of fluid is displaced by the box if the fluid is air ? Density of air = 1.2 kg /m3. choose one correct answer with correct unit of measure. A. 23 L B. 1.2 kg/L C. 23 m3 D. 1.2 L

What pressure does this produce in the gas? E2. A 150-lb woman puts all of her weight on one heel of her high-heeled shoes. The heel has an area of 0.25 in². What is the pressure that her heel exerts on the ground in pounds per square inch (psi)?

9. A fountain shoots water 8 m straight up. a. What is the pressure at the point where the water exits the pipe at ground level and when it reaches it maximum height of 8 m? b. How fast must the water be moving when it exits the pipe at ground level?

Using the appropriate equations, predict the effects in each scenario. a. Vessels X and Y have the same diameter. X is 5 cm long and Y is 10 cm long. Which has the faster velocity of flow for the same fluid? b. A blood vessel has a radius of 4 cm. Vasoconstriction reduces the radius to 1 cm. In order to maintain the same flow, by what factor must pressure increase? c. The blood vessel in B above dilates from 1 cm to 4 cm. Does the flow rate increase or decrease?