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cluponka [151]
3 years ago
13

The neucleus of about atom contains positive or negative electrons

Physics
1 answer:
lesya [120]3 years ago
7 0
The nucleus of an atom contains neutrons and protons.
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What's the opposite of vaporization
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A horizontal line on a displacement-time graph means the object is
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traveling further away

Explanation:

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3 years ago
A sound wave travels in air toward the surface of a freshwater lake and enters into the water. The frequency of the sound does n
Shkiper50 [21]

Answer:

Explanation:

velocity of sound in air at 20⁰C is 343 m /s

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= 1481 / 119.93

= 12. 35 m .

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3 years ago
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