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Calculate the force of attraction between a K+ cation and a O2- anion, the centers of which are separated by a distance of 1.5 nm.
Air exits from the nozzle at 800m/s. find the air exit temperature from the compressor.
Water at 150C flows in 1½-inch Sch 40 steel pipe with a flow velocity of 2.86 m/s. The pipe expands to 4-inch Sch 40.
Write a literature review and the title is "the effect of fluid cooling on the performance of building integrated photovoltaic thermal systems. Using some BIPVT prototypes measure their thermal and electrical output and dtermine their effectiveness"
A piston-cylinder device contains 0.8kg of steam at 300 degrees C and 1 MPa. Steam is cooled at constant pressure until one-half of the mass condenses.
A 15cm cube of mass 3kg is lubricated with SAE 10 oil at 20oC (dynamic viscosity of 0.104Ns/m2) slides down a 10o inclined plane at a constant velocity. Estimate the speed of the body if the oil film has a thickness of 2mm and the velocity distrib..
Two kilograms of air within a piston-cylinder assembly execute a carnot power cycle with maximum and minimum temperatures of 750k and 300k, respectively.
determine the electrical power input to the pump. the density of water is 1kg/l.
A satellite is in Earth orbit with an altitude at perigee of 555.0 km and an altitude at apogee of 1200.0 km. a. What is the semi-major axis of the orbit? b. What is the eccentricity? c. If the true anomaly is 160 degrees, what is the satellite's ..
Questions set on Entropy, Exergy, Cycles, Otto Cycle, Rankine Cycle. In a coal fired thermal power station, indicate where the exergy contained in the coal is destroyed. For each exergy destruction mechanism, explain whether there is a small..
The humidity of air can be determined by use of two different thermometers; a 'dry bulb' thermometer and a 'wet bulb' thermometer. explain how these thermometers can be used to estimate the amount of water vapour in the air.
How is the technology utilized effectively or ineffectively? What are some barriers to more effective usage, and what are some recommendations you would make to overcome these barriers?
Determine the tensions developed in wires , and and the angle required for equilibrium of the 30-lb cylinder E and the 60-lb cylinder F.
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