A blackbody is a perfect emitter of the radiation it generates
Indicate whether the statement is true or false
TRUE
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A heat pipe having an effective length of 80 cm uses methanol as the working fluid. At an operating temperature of 20ºC the methanol flow rate is 12 mg/s, and the heat pipe uses an axially grooved wick arrangement with 60 equally spaced 2.1-mm-deep grooves. Determine the width of the grooves.
What will be an ideal response?
If a foreign atom is more than _____________% larger than its host, it normally does not form a continuous substitutional solid solution.
Fill in the blank(s) with the appropriate word(s).
In what region of the solar system is Pluto found?
A) the asteroid belt B) the Kuiper belt C) the Oort cloud D) the terrestrial planet region
An object is placed a distance d from a converging lens. The object is then moved to a distance 2d from the converging lens. Which of the following statements is false?
a. The image in the second case with the object at distance 2d can be the larger one. b. If both images are real, the image in the second case is smaller. c. If the image in the first case is real, the image in the second case is upright. d. The image in the first case with the object at distance d can be the larger one.