According to the de Broglie hypothesis, which of the following statements is applicable to the wavelength of a moving particle?
a. directly proportional to its energy
b. directly proportional to its momentum
c. inversely proportional to its energy
d. inversely proportional to its momentum
d
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Which of the following statements about Betelgeuse is not true?
A) It is distinctly red in color. B) We now know that it is a very massive star near the end of its life. C) Its Arabic name means "the demon star." D) It is one star of the three stars of the Winter Triangle, along with Procyon and Sirius. E) It is the upper left shoulder star of the constellation Orion.
The most underlying feature of machines is
A) energy conservation. B) that energy input always equals energy output. C) that power input always equals power output. D) all of the above E) none of the above
Heat exchangers are important. Explain their use in power plants, including large scale solar power plants
What will be an ideal response?
What happens on or about March 20th, and what does the name signify?
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