The spring of the pressure gauge shown in the figure below has a force constant of 1 350 N/m, and the piston has a diameter of 1.40 cm. As the gauge is lowered into water in a lake, what change in depth causes the piston to move in by 0.700 cm? 4.635 x Your response differs from the correct answer by more than 10%. Double check your calculations. m Vacuum 0
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- 9The pressure drop along a length of artery is 103 Pa, the radius is 9.5 mm, and the flow is laminar. The average speed of the blood is 16.5 mm/s.Randomized Variables P = 103 Par = 9.5 mms = 16.5 mm/s a. What is the net force on the blood in this section of artery in N? b. What is the power expended maintaining the flow in mW?In a hydraulic lift, the radii of the pistons are 2.11 cm and 10.0 cm. A car weighing W = 10.0 kN is to be lifted by the force of the large piston. A) What force Fs must be applied to the small piston? in N B) When the small piston is pushed in by 10.0 cm, how far is the car lifted? in mm C) Find the mechanical advantage of the lift In numeric Response
- A sphygmomanometer is a device used to measure blood pressure, typically consisting of an inflatable cuff and a manometer used to measure air pressure in the cuff. In a mercury sphygmomanometer, blood pressure is related to the difference in helghts between two columns of mercury. The mercury sphygmomanometer shown in the figure below contains air at the cuff pressure P. Po The difference in mercury heights between the left tube and the right tube is h= 109 mmtg - 0.109 m, a normal systolic reading. What is the gauge systolic blood pressure Poauge in pascals? The density of mercury is p 13.6 x 10 kg/m and the ambient pressure is Po1.01 x 10 Pa. HINT PaAn 7.0 cm -diameter, well-insulated vertical cylinder containing nitrogen gas is sealed at the top by a 5.3 kg frictionless piston. The air pressure above the piston is 100 kPa.THER The four tires of an automobile are inflated to a gauge pressure of 1.9 x 10° Pa. Each tire has an area of 0.023 m in contact with the ground. Determine the weight of the automobile. N Need Help? Read It
- I Review I Constants I Periodic Ta Water flowing through a 2.5-cm-diameter pipe can fill a 200 L bathtub in 3.3 min . ▼ Part A What is the speed of the water in the pipe? Express your answer in meters per second. ? V = m/s Submit Request AnswerA house weighs 12,000 pounds. a. Air normally has a density of 1.29 kg/m^3 but at 250 degrees air has a density of 0.9 kg/m^3. What volume of hot air balloon is needed to float this house off the ground? b. At standard temperature and pressure Helium has a density of 0.16 kg/m^3. How many 30 cm diameter helium balloons will it take to float the house?The figure illustrates flow through a pipe with diameters of 1 mm and 2 mm and with different elevations. px is the pressure in the pipe, and vx is the speed of a non-viscous incompressible fluid at locations x = Q,R,S,T, or U. T R D=1mm D= 2 mm Select the correct answers. Less than V PQ is PU. Less than V VT is ... 2vQ. Greater than Pu is ... PT. Submit Answer Incorrect. Tries 11/12 Previous Tries Post Discussion S Send Feedback
- A chemistry graduate student is designing a pressure vessel for an experiment. The vessel will contain gases at pressures up to 150.0 MPa. The student's design calls for an observation port on the side of the vessel (see diagram below). The bolts that hold the cover of this port onto the vessel can safely withstand a force of 2.80 MN. W 0 -pressure vessel cm bolts port Calculate the maximum safe diameter w of the port. Round your answer to the nearest 0.1 cm. zide TO 0.P d 220لابد B A These four containers are filled with the same volume of water. Which has the highest pressure at the bottom? A B CThe three containers in the figure below are filled with water to the same level. Rank the pressures at the bottom of the containers. HINT A C O PA = PB = PC O PA> PB = PC O PA = PB > PC O PA PB > PC Need Help? Read It s docun