What are fluid and heat exchanger properties that determine the overall heat exchanger conductance?
What will be an ideal response?
Simply, the convective heat transfer coefficient of the fluid with its associated
properties, and the thermal conductivity of the material separating the two
fluids are most significant
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The resistivity of the material of a wire is 1.76 × 10-8 ?m. If the diameter of the wire is 2 × 10-3 m and its length is 2 m, what is its resistance?
A) 112 ? B) 11.2 ? C) 1.12 ? D) 0.112 ? E) 0.0112 ?
In free space, electromagnetic waves travel at a
A) variety of speeds. B) single speed. C) speed depending on frequency.
A circular orbit would have an eccentricity of
A) 0. B) between 0 and 0.5. C) between 0.5 and 1. D) exactly 1.0. E) infinity.
What color are the stars with the hottest photosphere?
a. White b. Yellow c. Red d. Blue