How many grams of water can be produced by the combination of 8 grams of oxygen and 8 grams of hydrogen?
A) 16 grams
B) 10 grams
C) 9 grams
D) 8 grams
Answer: C
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At the longest look-back times, we see ____
a. redshifted irregular galaxies b. redshifted dwarf elliptical galaxies c. redshifted dwarf spiral galaxies d. blueshifted dwarf spiral galaxies e. blueshifted dwarf elliptical galaxies
An airplane that flies at 100 km/h in a 100-km/h crosswind has a ground speed of
A) 0 km/h. B) 100 km/h. C) 141 km/h. D) 200 km/h.
Which of the following represents a continuation of the basic general idea of the "Copernican revolution"?
A) The idea that our sun is just one star among billions of similar stars. B) The idea that the universe was not made just for us. C) The idea that the human species is not very different biologically from the other species. D) All of the above. E) None of the above.
A small, hot object makes thermal contact with a more massive, equally hot object. Consequently,
1.there will be a net flow of energy from the smaller object to the larger object. 2.there will be a net flow of energy from the larger object to the smaller object. 3.there will be zero net flow of energy. 4.more information is required to determine the direction of the net flow of energy.