Find the electric field just above the middle of the sheet
A large, flat, horizontal sheet of charge has a charge per unit area of 9.00 mC/m2. Find the electric field just above the middle of the sheet.
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The guidance system of a ship has four modules that must maintain all function properly for the system to work. Two of the modules have reliability of .85, the other two have reliability of .95 each. Compute the reliability of the system.
The fuel is consumed at a constant rate q = dm=dt and is expelled at a constant speed u relative to the rocket. Derive an expression for the velocity of the rocket at time t, neglect the resistance of the air.
A lathe is considered to be in perfect adjustment if the average length of the steel bars it cuts is 6 centimeters. A sample of 60 bars is selected randomly and measured. It is determined that the average length of the bars in the sample is 6.08 c
A composite wall is to be constructed of 1/4 inch stainless steel (k=10.5 but/hr-ft-degrees F), 3.0 inches of corkboard (k=0.027 same units), and 1/2 inch of plastic (k=1.4); What is the individual resistance of each material layer? Report in hr-d
An instructor believes that 20% or less of the students who finish a statistics course get an "A" grade. A sample of 90 students was taken and 25 of the students in the sample received an "A" grade.
A steam turbine operates steadily under the following condions. At the inlet, p=2.5Mpa, T=450 degrees C, and V=40 m/s. At the outlet p=22Kpa, T=70 degrees C, and V=225 m/s.
A researcher believes that the retail price of new identical automobiles differs between an Urban location and a Suburban location. A random sample of 25 cars sold at Urban locations gave a sample mean of $16,496 and a sample standard deviation of
Water (15 C) flows in a horizontal schedule 40 pipe that has a nominal diameter of 0.5 in. What is the pressure drop per meter of pipe length?
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