Find the rate of rise of level of solution if depth is given
A solution is poured into a conical filter of base radius 12m and vertical height 15 m at a uniform rate of 8.4 m3/s and filters out at 6.4 m3/s. What is the rate of rise of the level of the solution when the depth is 9 m?
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Determine the microstructure for eutectoid steel that has undergone the following heat treatment. For each heat treatment you may assume that you start with austenite at 760ºC.
In a survey of 9000 females. 6431 say they change their nail polish once a week. Construct 90% and 95% confidence intervals for the population proportion,. Interperet the results and compare the widths of the confidence intervals.
The objective mirror of the Mt. Palomar telescope has a 200-inch diameter. If an ocular with a diameter of 0.90 inches is used, what is the ratio of the intensity of light emerging from the ocular to the intensity of incident light?
What is the angular separation between two stars that are barely resolved by the average eye, when viewed through a good-quality astronomical telescope with an angular magnification of 73.3? (The minimum angular separation that can be resolved by
A coil of wire is connected to an ideal 9.0-V battery at t = 0. At t = 15.8 ms, the current in the coil is 204 mA. One minute later, the current is 270 mA. a.) Find the resistance of the coil. b.) Calculate the inductance of the coil.
A Gallup Poll used telephone interviews to survey a sample of 1025 U.S. residents over the age of 18 regarding their use of credit cards. The poll reported that 76% of Americans said that they had at least one credit card. Give the 95% margin of e
A water tank with an open top and square horizontal cross-section is to have a capacity of 5 m2. Find the minimum cost of lining this tank with a waterproof material at £ 200 per m2.
Calculate the heat transfer from the plate assuming plate is not long enough and therefore flow is part laminar and part turbulent.
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