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-Dominant- [34]
3 years ago
15

Who reported four “element” classifications, but included some substances that were combinations of elements rather than true el

ements in his listing?
Physics
1 answer:
notsponge [240]3 years ago
7 0
Antoine-Laurent Lavoisier was the first person to report the four element classification system but also ended up including some compounds rather than elements.
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Out of hypothesis, theories and laws “can help predict future events”
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Answer:

true

Explanation:

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3 years ago
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Answer:

v = 33.66 m/s

Explanation:

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so here we have

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so time taken by the puck to strike the wall is given as

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now time taken by sound to come back at the position of shooter is given as

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so we know that total time is 1.9 s

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A simple model of a hydrogen atom is a positive point charge +e (representing the proton) at the center of a ring of radius a wi
Norma-Jean [14]

Answer:

Now e is due to the ring at a

So

We say

1/4πEo(ea/ a²+a²)^3/2

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Next is E due to a point at the centre

So

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Finally we get the total

Et= E²-E

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So the direction here is away from the ring

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damaskus [11]

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Explanation:

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tigry1 [53]

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