Second Law of Thermodynamics: The second law of thermodynamics leads us to conclude that
A. the total energy of the universe is constant.
B. disorder in the universe is increasing with the passage of time.
C. it is theoretically possible to convert heat into work with 100% efficiency.
D. the average temperature of the universe is increasing with the passage of time.
E. the entropy of the universe remains constant.
Answer: B
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Which of the following is true of ribonucleic acid (RNA)?
A) It carries the genetic code out of the nucleus. B) It remains safe in the nucleus of a cell. C) It is the building block of compounds such as proteins and carbohydrates. D) It is a long spiral molecule that stores the genetic code.
The most important idea in Copernicus' De Revolutionibus was placing the _______________ at the center of the Universe
Fill in the blank(s) with correct word
A speaker can be used as a crude microphone
Indicate whether the statement is true or false
A planetary nebula:
a) is the ejected envelope of a low to intermediate mass star b) is what stars and planets are made of c) contains a black hole at the center d) lasts very long in the life of every star e) is a fuzzy planet