What is one way a glassy texture forms?
Ans: Lava cools rapidly
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Water is to be condensed at 1 atmosphere pressure in a compact heat exchanger having vertical stainless steel plates at 40ºC. Plot the condensation boundary layer thickness flowing down the vertical surface as a function of the distance down the plate, assuming laminar flow. At what point would you assume the condensate flow to become turbulent?
What will be an ideal response?
Larger batteries have higher output voltages
Indicate whether the statement is true or false
Semiconductors: In a good conductor, the highest energy band containing electrons is
A. only partially filled. B. completely filled. C. completely empty.
All the following statements are true. Which one follows directly from Kepler's third law?
A) Venus takes longer to rotate than it does to orbit the Sun. B) Venus has a thicker atmosphere than Mercury. C) Venus orbits the Sun at a slower average speed than Mercury. D) Venus is more massive than Mercury.