What is meant by thermal resistance at a surface?
What will be an ideal response?
Thermal resistance as it applies to radiation heat transfer is an algebraic result
of solving for the net radiation leaving a surface, the net radiation being the
radiosity minus the irradiation from some other surface or surfaces. The thermal
resistance is such that when multiplied by the net radiation leaving a surface is
equivalent to the difference between a black body radiation and the radiosity.
An often used way to use it is to divide it into the difference between a black
body radiator and the surface radiosity to predict the net radiation leaving the
surface
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During the period of one day, the number of high tides at a given point is about
a. one. b. two. c. three. d. four. e. none of the above.
What is the wavelength of a wave described by the following function: y(x,t) = (2.00 m)cos[(3.00 m-1)x + (5.00 s-1)t]
A) 2.09 m B) 3.00 m C) 5.00 m D) 1.26 m E) 0.333 m
An atomic nucleus has a charge of +40e. What is the magnitude of the electric field at a distance of 1.0 m from the center of the nucleus?
(k = 1/4??0 = 8.99 × 109 N ? m2/C2, e = 1.60 × 10-19 C) A) 5.4 × 10-8 N/C B) 5.6 × 10-8 N/C C) 5.8 × 10-8 N/C D) 6.0 × 10-8 N/C E) 6.2 × 10-8 N/C
Diamond is transparent to the visible spectrum. Gives the index of refraction at 589 nm. Calculate the speed of 589 nm light in diamond.
What will be an ideal response?