A large diffuse surface has spectral absorptivity of a = 0.9 for 2 <1 jam and a = 0.2 for à 2 1 jam. The surface is insulated in the bottom, and exposed to two different conditions on the top: Insulated Insulated Case (2) Case (1) 6-1) Case 1): What is the value of the total hemispherical absorptivity of the large diffuse surface? Note that the sun emits approximately as a blackbody at 5800 K. Blakdy Radiation Function AT AT BLOKKE 6.40677 6516014 LAV 0000016 6.37820 LIND GOME AND 02134 BA33747 140 5300 BAWY70 LIND GOINTIK 5.40 GANTHO 0009341 6.300 5.000 230 6.JOH 6737418 0.140256 8.180130 6769234 0227997 8.273232 3.000 130 3,400 740 7:00 0403607 0443382 7NW BAINS 6-2) Case 1): The surface is exposed to the sun and G.= 1200 W/m². Flowing air temperature Te is 300 K. Assuming the surface temperature of 7,- 320 K, what is the convective heat transfer coefficient ? The unit of W/(m²K)

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Fluid Kinematics

The branch of science that deals with objects which are either in motion or stationary are studied under the branch of classical mechanics. Fluid mechanics is a subcategory of classical mechanics that deals with the behavior of fluids at rest (fluid statics) or in motion (posing some velocity). In fluid kinematics, studies focus on the associated motion of fluid particles or groups of particles, and its associated parameters like displacements, velocity, and acceleration without concerning about the forces that caused the motion. All the laws of classical mechanics are applied in the study of fluid kinematics.