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A vertical jet of liquid of diameter d and moving at velocity u∞ impinges on a horizontal disk rotating ω rad/s. There is no heat transfer in the system. Develop an expression for δ(r), where r is the radial coordinate on the disk.
Contrast the r dependence of δ with that of a condensing film on a rotating disk and explain the difference qualitatively.
Consider the heat transfer analog to the carburization problem. Sketch the mass and heat transfer systems. Show and explain the correspondence between variables. Provide the analytical solutions to the heat and mass transfer problems
a 6lb ball is to be fired from rest using a spring having a stiffness of k40 lbft. determine how far the spring must be
A bird flying at a constant speed at an altitude 100 m is being tracked by a person located directly below the line of flight. If this angle is decreasing at 0.02 rad/s when the angle between the horizon line and the line of site is 45 degrees.
Write the form of the heat equation and the boundary/ initial conditions that determine the variation of temperature with position and time, T(x, t), in the pan bottom during Stage 1. Express your result in terms of the parameters qo, D, L, h, and T..
an office worker claims that a cup of cold coffee on his table warmed up to 80degc by picking up energy from the
a steel pipe of 100-mm diameter is to support the loading shown. knowing that the stock of pipes available has
a circular hollow steel drill pipe should not stretch more than 5mm when it is subjected to a tensile load. knowing
steam at 7 bars and temperature t enters an adiabatic mixing tank. compressed water at 40 c and 7 bars enters at
titanium w6.94x10-19j and silicon w7.77x10-19j surfaces are irradiated with uv radiation with a wavelength of 227nm.
a disk of 180 mm radius rotates at the constant rate w212 radsec with respect to arm cd which itself rotates at the
a turbine produces 2 mw of power while accepting steam at 3 mpa and 400 c and rejecting steam at 50 kpa and 100c. find
What is regression testing? Explain how the use of automated tests and a testing framework such as JUnit simplifies regression testing.
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