Chemistry, 09.07.2019 08:00 brittany1903
The following table lists the speed of sound in various materials. use this table to answer the question. substance speed (m/s) glass 5,200 aluminum 5,100 iron 4,500 copper 3,500 salt water 1,530 fresh water 1,500 mercury 1,400 hydrogen at 0°c 1,284 ethyl alcohol 1,125 helium at 0°c 965 air at 100°c 387 air at 0°c 331 oxygen at 0°c 316 how long would it take for a sound impulse to travel through an aluminum rod 25 kilometers long? 0.0049 sec 0.071 sec 4.9 sec 0.14
Answers: 2
Chemistry, 21.06.2019 23:00
An electrons position cannot be known precisely only it's probability of being in a certain location can be known
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Chemistry, 22.06.2019 08:30
In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?
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Chemistry, 22.06.2019 13:00
If two objects at different te,peraure are in contact with each other what happens to their temperature
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Chemistry, 22.06.2019 16:40
Let the ed50 of a recreational drug be defined as the amount required for 50% of a test group to feel high or get a buzz. if the ed50 value of ethanol is 470 mg/kg body mass, what dose would a 70 kg party goer need to quickly consume in order to have a 50% chance of getting a buzz? 235 mg 470 mg 32,900 mg 35,000,000 mg
Answers: 3
The following table lists the speed of sound in various materials. use this table to answer the ques...
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