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Masteriza [31]
3 years ago
15

Which items did Mendeleev write down on note cards while he was observing

Physics
1 answer:
leva [86]3 years ago
4 0
What is the picture of the cards that Mendeleev put on the notes?
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The ball is moving at a constant speed of 0.5 m/s for 2.3 seconds how far does it go?
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Distance = (speed) x (time)

Distance = (0.5 m/s) x (2.3 s)

Distance = (0.5 x 2.3) m

Distance = 1.15 meters

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27% helium and 71% hydrogen

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The length of the slope of a mountain is 2780 m, and it makes
Vedmedyk [2.9K]

Answer:

677 m

Explanation:

Using the definition of the sine of an angle, we can write

sin 14.1 = (height of mountain) / (slope length of mountain)

sin 14.1 = H / (2780 m) ---> H = (2780 m) x sin 14.1

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