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The average speed of a nitrogen molecule in air is about 6.70 e2m/s, and its mass is about 4.68e-26 kilogram.
a) If it takes 1.6e-13 second for a nitrogen molecule to hit a wall and rebound with the same speed but moving in an opposite direction (assumed to be the negative direction), find the average acceleration of the molecule during this time interval?
(m/s^2)
b) Find what average force does the molecule exert on the wall?
(N)
Tube A, in a 20°C room, is observed to support standingwaves at frequencies of 48 Hz, 60 Hz and 72 Hz, but not at anyfrequencies in between (but possibly at higher and lower frequencies). Meanwhile tube B, which is the same length, supports standi..
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