If the same quantity of heat is added to both a 1-liter and a 2-liter container of water, the temperature change in the 1-liter container will be
A) less.
B) the same.
C) greater.
Answer: C
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One of the harmonics of a column of air in a tube that is open at one end and closed at the other has a frequency of 448 Hz, and the next higher harmonic has a frequency of 576 Hz. What is the fundamental frequency of the air column in this tube?
A) 32 Hz B) 64 Hz C) 88 Hz D) 128 Hz E) 256 Hz
A common 5-liter metal can will float in air if it is
A) evacuated of air. B) filled with a very large amount of helium. C) thrown high enough. D) no way, unless the displaced air weighs more than the can and its contents!
The spring tides occur during the new and full lunar phases
a. True b. False Indicate whether the statement is true or false
Luminous (normal) matter makes up approximately what percentage of the known matter in the universe?
A) 15% B) 5% C) 60% D) 95%