If you blow across the top of an empty soft-drink bottle, a pulse of sound travels down through the air in the bottle. at the moment it pulse reaches the bottom of the bottle, what is the correct description of the displacement of elements of air from their equilibrium positions and the pressure of the air at this point?
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Physics, 22.06.2019 16:30
A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.
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Physics, 22.06.2019 17:00
What equation is used to calculate the weight of an object on a plant ?
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Physics, 22.06.2019 19:30
Petroleum contains energy. a. light b. kinetic c. chemical d. mechanical
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If you blow across the top of an empty soft-drink bottle, a pulse of sound travels down through the...
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