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An inflatable backyard swimming pool is being filled from a garden hose with a flowrate of 0.12 gal/s.
a. If the pool is 8 ft in diameter, determine the time rate of change of the depth of water in the pool.
b. Suppose that the pool has a drain port with a diameter 0.5 in. Immediately after the drain is opened, the rate of change of the depth of the water in the pool is observed to decrease to 80% of the value calculated in part (a). Determine the average fluid velocity at the drain port.
A rigid tank contains 40 lbm of air in 20 psia and 70 degrees F. More air is added to the tank untill the pressure and temperature rise to 35 psia and 90 degrees F, respectively.
If not, how are concerns about differences in machine architectures-for example, the different representation of integers on different machines-addressed?
Design and detail a brick veneer cladding for a multistory building that you are designing. Rather than trying to conceal the ashings and soft joints, work out a way of expressing them boldly as part of the architecture of the building.
A 3105 Aluminum alloy wire is to be drawn to give a 1-mm diameter wire having a yield strength of 20,000 PSI. assume that there is no friction in the wire drawing process
A Rankine cycle with R-410a has the boiler at 3 MPa superheating to 180?C, and the condenser operates at 800 kPa. Find all four energy transfers and the cycle efficiency
How many extractions are required to decrease the concentration of phenol below 100 mg/L in a wastewater containing 2000 mg/L of phenol if an ether-to-watewater ratio of 0.2 by volume is used in each extraction
two identical spheres of radius 8 in and weighing 2 lb on the surface of the earth are placed in contact. find the gravitational attraction between them.
A Pelton wheel, located at an elevation of 200.0 m, is used to extract power from a reservoir at an elevation of 800 m. A penstock 1500 m long and 0.8 m in diameter connects the reservoir with the nozzle of the Pelton wheel.
A 10ft x 10 ft square footing is subjected to an eccentric compressive load Of PL = 50 kips and PD = 60 kips. The eccentricity of load is 18 inches. There is a 24 in x 24 in concrete pier concentrically located on the footing. The footing is 24 i..
Congress banned the production of the speedy dry cleaning company's dry cleaning fluid in 2000. Speedy is using a new cleaning fluid. The new dry cleaning fluid has one-sixth the volatility of the former dry cleaning fluid.
A pickup truck has a width of 78.7 in. Ifit is traveling north at 39 m/s through amagnetic field with vertical component of 32 µT, what magnitude emf is induced between the driver and passenger sides of the truck?
Car A is moving with constant speed v on the straight and level highway
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