Find the rates of heat transfer and work neglecting kinetic
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A manufacturer of automobile purchases machine bolts from a supplier who claims that no more than 5% of suppliers bolts are defective. From a sample of 400 bolts, it is found that 28 are defective. Is there sufficient evidence to reject the suppli
A beam that lies horizontal is subject to vertical loads resulting in maximum moment of 431 kn.m. The cross section of the beam is rectangular with the base width of 72 mm.
Assuming that this radiation was distributed uniformly over the surface of the Earth, what was the activity per square meter? (The actual activity was not uniform; even within Europe wet areas received more radioactivity from rainfall).
The system contains a sharp-edged entrace, 6 threaded 90 degree elbows, and a sharp edged exit. Determine the required pipe diameter for the given flow conditions. Assume the SG of the liquid=1.05.
An expander receives 1 lbm/s air at 300 psia, 540 R with an exit state of 60 psia, 540 R. Assume the process is reversible and isothermal. Find the rates of heat transfer and work neglecting kinetic and potential energy changes.
A normal population has a mean of 20. after an experimental treatment, a sample yields the following scores: 15,25,30,20 and 22. What is the t-score for a hypothesis test for the effect of the treatment. What conclusion would you reach about the n
Estimate the pressure drop across the honeycomb. the density of the air is 1.12 kg/m3 and the kinematic viscosity is 1.5E-5 m2/s. You may neglect inlet and outlet minor losses.
The automatic transmission in a car receives 25 kW shaft work and gives out 24 kW to the drive shaft. The balance is dissipated in the hydraulic fluid and metal casing, all at 45oC, which in turn transmits it to the outer atmosphere at 20oC.
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