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Q7: Fred really likes Wilma and would like
Q8: After a stone dropped from a cliff
Q9: A 100-kg astronaut ejects 4 g of
Q9: Of the following energy sources, the one
Q17: Which one of the following attributes is
Q21: DNA controls the development and functioning of
Q28: At the summer solstice, usually June 22,
Q32: The number of formula units in a
Q37: Which of the following quantities is independent
Q49: Temperature differences between summer and winter are