Chemistry, 02.10.2019 16:30 roxanneee2145
Dolphins communicate using compression waves (longitudinal waves). some of the sounds dolphins make are outside the range of human hearing.
upon spotting a hungry shark, dolphin a sends a message to dolphin b. to send this message as effectively as possible, dolphin a would
make a softer sound because the shark will not hear the softer signal.
send the message above the water when it jumps because air is more dense than water, and the sound would be louder above the water.
send the message underwater because a more dense medium would make the sound travel faster.
make a higher pitched signal because a higher pitch is a louder sound.
Answers: 1
Chemistry, 22.06.2019 09:00, alydiale584
Particles vibrate in a rigid structure and do not move relative to their neighbors.
Answers: 1
Chemistry, 22.06.2019 10:30, jahmira96
Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive
Answers: 2
Dolphins communicate using compression waves (longitudinal waves). some of the sounds dolphins make...
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