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Consider an object of characteristic length 0.01 m and a situation for which the temperature difference is 30°C. Evaluating thermophysical properties at the prescribed conditions, determine the Rayleigh number for the following fluids: air (1 atm, 400 K), helium (1 atm, 400 K), glycerin (285 K), and water (310 K).
liquid sodium leaves a nuclear reactor at 80 degrees celsius and is used as the energy source in a steam power plant.
a shaft which rotates at a constant speed of 160 r.p.m. is connected by belting to a parallel shaft 720 mm apart which
two low-carbon steel plates of 12 mm thickness are butt-joined by welding. sketch to show the expected weld bead
A string π m long is stretched until the wave speed is 40 m/s. It is given an initial velocity of 4 sin x from its equilibrium position. Determine the maximum displacement and state its location and when it occurs.
by itself the 2500-kg pickup truck executes a 0-100 kmh acceleration run in 10 s along a level road. what would be the
1.Discuss whether you think OSHA's air contaminant standards are important, and why. Do you think they are adequate to protect employees in the workplace from airborne contaminant hazards? Explain.
an interior well is producing from a reservoir developed on a 40-acre square pattern which has the following
Which chromium plating is more eco-friendly - trivalent or Hexavalent? Justify your answer in the light of environmental issues caused.
the water in a 8m diameter 3m high above ground swimming pool is to be emptied by unplugging a 3cm diameter 25m long
Comparison of the infrared intensities of the v = 1 S 2 transition inds a ratio of 0.100 for DI molecules (ve = 1640cm-1 ) in the v = 1 state to HI molecules (ve = 2310cm-1 ) in the v = 1 state. What is the ratio nDI>nHI in the entire sample?
How much energy storage capacity would Scotland need to satisfy all its electricity needs with renewable generation and provide a stable grid
bc company wishes to enter a new market arena on the basis of its strength in core technologies and financial staying
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