Physics, 24.10.2019 21:43 jaqwannewsome
The average speed of a nitrogen molecule in air is about 6.70 β 102 m/s, and its mass is about 4.68 β 10-26 kg. (a) if it takes 4.20 β 10-13 s 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), what is the average acceleration of the molecule during this time interval? m/s2 (b) what average force does the molecule exert on the wall? n
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Physics, 22.06.2019 01:30
Ajet plane has a sound level of 120 db at a distance of 60 m. what is the q23. sound level at a distance of 6.0 km? (60)2 (6000)? om solution 80db db, hint: 16x assume ultrasound waves travel through the body of an animal at 1540 q24. m/s. if a 30,000 hz signal were reflected off a portion of a heart which was moving toward the source at 3 m/s, what frequency signal would return to the stationary source? solution 30.117hz
Answers: 3
Physics, 22.06.2019 14:30
What was the first instrument to ever record an earthquake?
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The average speed of a nitrogen molecule in air is about 6.70 β 102 m/s, and its mass is about 4.68...
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