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mina [271]
3 years ago
7

Which diagram best shows the perceived sound wave heard by a woman after a police car has passed her?

Physics
1 answer:
zloy xaker [14]3 years ago
5 0

Answer:

A on Edg 2021

Explanation:

Just took the test

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Which structures protect the cell? Check all that apply.
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True testing means that a serious effort is made to falsify (“disprove”) each possible explanation.
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False.

Explanation:

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7 0
3 years ago
the atomic number of krypton (kr) is 36, and its mass number is 84. how many neutrons does it have? 18 36 48 72
tino4ka555 [31]

By definition, we have that the number of neutrons is given by:

# neutrons = atomic mass - # protons

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Therefore, substituting values we have:

  # neutrons = 84 - 36

  # neutrons = 48

Answer:

The Krypton has 48 neutrons

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3 years ago
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