Answer: Chemical reactions involve electron rearrangements, Nuclear reactions involve changes to the nucleus.
Explanation: What is a key difference between chemical and nuclear reactions? Chemical reactions involve electron rearrangements, Nuclear reactions involve changes to the nucleus.
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A person that is standing behind a moving siren will interpret the frequency to be lower compared to the person that would be standing in front of it. This is because the sound is now moving away from the person behind the siren and at this point the sound is juts lingering but, still very low.
It’s either C or D. let me know but I would do C!
The speed changes after the point. C’mon Dude this is so easy
Miles per second right?
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