The atmosphere extends from the Earth's surface to a height of about ____ miles above sea level
A) 243
B) 348
C) 16
D) 1,299
B
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If a source says “the internal energy of the methane is U = 100 J/mol,” which of the following is true?
A. In order to lower the temperature of the methane to absolute zero, you would have to remove 100 joules of heat from each mole of methane. B. In order to convert the methane from its current state to the reference state, 100 joules of heat would need to be added to each mole of methane. C. In order to convert the methane from its current state to the reference state, 100 moles of energy would need to be added to each mole of methane, but the energy added could take the form of either work or heat. D. 100 joules, divided by the number of molecules in one mole, equals the average kinetic energy of the methane molecules, but the kinetic energy of individual molecules vary widely. E. None of the above are true.
The military revolution in Europe was prompted by a need for what?
a. more firepower b. more men c. more gunpowder and firearms d. greater battlefield mobility
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Indicate whether the statement is true or false