College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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- 6.) A cylindrical oil storage tank is 50 meters all and has a diameter of 40 meters is sitting on a concrete pad. Do not change system of units - keep answer in decimal form Mass and Weight Density Values: Oil - 870 kg/m3 Mass Density, and 54.2 lb/ft3 Weight Density. Concrete - 2300 kg/m3 Mass Density and 140 lb/ft3 weight density. Air - 1.29 At 0 degrees C and 1 atm pressure, 0.081 at 32 degrees F and 1 atm pressure. a.) What is the pressure inside the tank at 10 meters above the concrete pad? _____________________ Pa b.) what is the total force acting on the bottom of the tank? ____________ N c.) What is the total force acting on the side of the tank? _____________ Narrow_forwardThree glass containers containing water of the same temperature have different shapes and thickness. The distance between the top surface of the water and the bottom of each glass container is the same. Which of the following statements correctly characterizes the pressure at the bottom of the glass containers? (explain why) 2 3 a. Pressure at the bottom of all glass containers is the same. b. Pressure at the bottom of (2) and (3) are the highest because they have the same volume. c. Pressure at the bottom of (2) is the highest because it is wide. d. Pressure at the bottom of (1) is the highest because it is narrow. e. Pressure at the bottom of (3) is the highest because it is vertically aligned.arrow_forward9. A liquid is flowing through a horizontal pipe whose radius is 2.22 x10-2 m. The pipe bends straight upward through a height of 9.8 m and joins another horizontal pipe whose radius is 3.82 x10-2 m. What is the speed of the liquid in the lower horizontal pipe if the pressure in both horizontal pipes is the same? x L0228) m/sarrow_forward
- Lossless Bernoulli's equation can be used, when Select one or more: a. no heat is brought into the fluid and no work is done on the fluid. b. the flow is steady. heat is brought into the fluid or work is done on the fluid C. Od. the flow is compressible. Oe. the flow is incompressible f. the flow can be assumed frictionless. g. continuity equation is not valid.arrow_forward5 How high would the level be in a gasoline-filled barometer (as shown in the figure below) at a pressure of 0.443 atm? The mass density of gasoline is 737 kg/m3. Assume that the vapor pressure of gasoline in the closed end of the barometer’s tube is negligible. Group of answer choices 60.9 m 6.21 m 4.58 m 14.0 m 2.77 marrow_forward6. A solid aluminum bar weighs 89 N in air. a. What is its volume? b. If it is suspended from a rope and totally submerged in water, what is the tension in the rope?arrow_forward
- 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.arrow_forward2. DETAILS S An incompressible fluid flows with velocity 12.00m through a round pipe with radius 2.30cm. If the pipe changes size and has a new, smaller radius of 0.20cm, what is the speed of the fluid moving through the narrower segment of pipe? m S What is the total volume flow rate for this pipe, in units of O 19.94- 11965698.10 L min L min L min 0.02- 1196.57- L min 1.20- L min L min MY NOTES (1000L=1m³ )? ASK YOUR TEACHERarrow_forward#3arrow_forward
- 10. A 40 kg mass is attached to one end of a spring, which has a spring constant of 700 N/m. The other end of the spring is attached to the bottom of a full tank of water. The mass has a volume of 0.25 m3 and is completely submerged in the water.a. Will the mass float, sink, or remain stationary?b. If the mass sinks or floats, determine how far the spring will compress or stretch?arrow_forward4. A raft is made of 12 logs lashed together. Each is 30.5 cm in diameter and has a length of 6,00 m. How many people (whole number) can the raft hold before they start getting their feet wet, assuming the average person has a mass of 66.0 kg? Do not neglect the weight of the logs. Assume the density of wood is 600 kg/m3 People (whole number) 741 n na741 naarrow_forward5. DETAILS 777777.78 Pa MY NOTES A 70.00kg ballroom dancer wearing high heels accidentally steps on her partner's foot. If her entire weight was momentarily supported by the heel of her shoe, which has a surface area of 0.90 cm², what amount of pressure does this apply to her partner's foot? 762.22 Pa 76222.22 Pa 7622222.22 Pa ASK YOUR TEACHER Suppose she instead stepped on her partner's foot with her forefoot instead of her heel (i.e., larger surface area). Would the pressure on her partner's foot be greater, less than, or equal to if she stepped on her partner with her heel? The pressure from the forefoot would be greater than the pressure from her heel. The pressure from the forefoot would be equal to the pressure from her heel. The pressure from the forefoot would be less than the pressure from her heel.arrow_forward
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