Physics, 26.11.2020 19:10, lowemadison047
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 length of the tube in centimeters?
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What is the earliest point in the universe that we can observe? why can’t we see back further than this?
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Acompound machine is also called a machine. a. force b. simple c. complex d. directional
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Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a. a piece of paper b. a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block
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