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A pin fin of 10-mm diameter dissipates 30 W by forced convection to air in cross flow with a Reynolds number of 4000. If the diameter of the fin is doubled and all other conditions remain the same, estimate the fin heat rate. Assume the pin to be infinitely long.
A closed system undergoes a process in which work is done on the system and the heat transfer Q occurs only at temperature Tb. For each case, determine whether the entropy change of the system is positive, negative, zero, or indeterminate.
A force of F= (-2i+8j-6k)N is applied to an object that is constrained to move in the direction u=0.5571i+0.4481j-0.6992k. If the object has a total displacement of 10 meters in the direction of u, calculate the work done on the object by the force.
Compute the total volume V displaced by the chamber - The submersible diving chamber has a total mass of 6.7 Mg including personnel, equipment, and ballast.
A 2 cm horizontal jet of water with a velocity of 15 m/s is spraying onto a vertical plate attached to a cart moving opposite the direction of the water jet at 8 m/s. Determine the force required to keep the cart moving at a constant velocity.
obtain the finite difference formulation for the nodes
air enters the compressor of a regenerative air-standard brayton cycle with a volumetric flow rate of 60 m3s at 0.8 bar
Consider two shafts in torsion, each of the same material, length, and crosssectional area. One shaft has a solid square cross section and the other shaft has a solid circular section. Which shaft has the greater maximum shear stress and by what ..
An Al2O3 whisker is a small single crystal used to reinforce metal-matrix composites. Given a cylindrical shape, calculate the number of Al atoms and the number of O atoms in a whisker with a diameter of 1 micrometer and a length of 25 micrometers. (..
How do the different components of MITRE's KM system assist in spreading knowledge throughout its labs and in storing knowledge for use in the future - What is the benefit of MITRE's evolutionary approach to KM?
a 3.6 kg rocket body containing 1.59 kg of fuel is attached to a light rigid rod of length r 0.45 m. the rod pivots
The maximum velocity of the flow past a circular cylinder, as shown, is twice the approach velocity. What is ?p between the point of highest pressure and the point of lowest pressure in a 40 m/s wind? Assume irrotational flow and standard atmosphe..
Goals of the Project - Brief Description of the Proposed Project
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