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A flat plate solar collector, 6ft by 12ft, is mounted on the roof of a house. The outer surface of the collector is at 110°F and its emissivity is 0.9. The outside air is at 70°F and the sky has an effective temperature for radiation of 45°F. The collector transfers heat by natural convection to the air with a heat transfer coefficient of 3.2 Btu/h.ft^2.°F and also transfers heat by radiation to the sky. Calculate the total heat loss from the solar collector.
the force f of magnitude 800 n is to be resolved into two components along the lines a-a and b-b. determine by
a smaller power plant produces steam at 3 mpa 600 c in the boiler. it keeps the condenser at 45 c by transfer of 10 mw
Explain what is meant by an overall heat transfer coefficient and explain what is mean by failing and what its effect will be on the value of the overall heat transfer coefficient.
Specifies that just the data points be marked with a circle. Showing the general trend of safety as a function of dia, with the actual data points marked by a circle. Is that explanation of the plot command still a little opaque?
advanced stress analysisin all but a very few vehicles today crush or crumple zones are employed as a method to reduce
a steam turbine receives water at 15 mpa 600oc at a rate of 100 kgs shown in figure q4 below. in the middle section 20
What is the acceleration of the truck if the coupling at C suddenly fails? The car wheels are free to roll. Neglect the mass of the wheels.
The lamp has a mass of 15 kg and is supported by a pole AO and cables AB and AC. If the force in the pole acts along its axis, determine the forces in AO, AB, and AC for equilibrium.
I would expect somthing like the requirement to execute the equation, please explain each term in the equation with its engineering units.
a man having the mass of 73 kg sits in the chair which is pin-connected to the frame bc. if the man is always seated in
the arm of the robot has a fixed length of r3ft and it grips a moves along the path z3sinthetaft where theta is in
Determine the minimum coefficient of static friction between the crate and the truck so that the crate does not slide relative to the truck.
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