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Romashka-Z-Leto [24]
3 years ago
11

How many oxygen atoms are in Ca (NO3)2

Physics
1 answer:
Lapatulllka [165]3 years ago
5 0

There are 6 atoms of oxygen in Ca (NO3)2.

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A bird flying straight upward at 5 m/s drops a berry when it is 300 m above the ground. How fast is the berry going when it hits
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Answer:

v=77.62 m/s

Explanation:

Given that

h= - 300 m

speed of the bird ,u= 5 m/s

Lets take Speed of the berry when it hit the ground = v m/s

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v² = u² - 2 g h

u=Initial speed

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Now by putting the values

v² = u² - 2 g h

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Therefore the final speed of the berry will be 77.62 m/s.

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