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3 years ago

How do snowflakes form?

Physics

2 answers:

BaLLatris [955]3 years ago

8 0

Answer:

✍️A snowflake begins to form when an extremely cold water droplet freezes onto a pollen or dust particle in the sky. This creates an ice crystal. As the ice crystal falls to the ground, water vapor freezes onto the primary crystal, building new crystals – the six arms of the snowflake

✍️ All snowflakes contain six sides or points owing to the way in which they form. The molecules in ice crystals join to one another in a hexagonal structure, an arrangement which allows water molecules - each with one oxygen and two hydrogen atoms - to form together in the most efficient way.

✍️ Snowflakes are symmetrical because they reflect the internal order of the water molecules as they arrange themselves in the solid state (the process of crystallization). ... These ordered arrangements result in the basic symmetrical, hexagonal shape of the snowflake.

✍️ At just below freezing temperature (0 C) a snowflake might look like a tiny plate, while a few degrees colder sees snowflakes that are shaped like columns or needles. There are even triangular snowflakes, which are thought to be caused by dust particles mixed in with the crystals.

✍️ All snowflakes are unique, sort of. The short answer is, yes, because each ice crystal has a unique path to the ground. They will float through different clouds of different temperatures and different levels of moisture, which means the ice crystal will grow in a unique way.

$\bold \red {Miss \: Beautiholic}$

posledela3 years ago

6 0

Answer:

in the air the freeze when it’s freezing outside

Explanation:

I hope this helps

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3 years ago

Compare the force of air resistance and the force of gravity on an object falling at its terminal velocity.

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3 years ago

Marina is staring at an optical illusion where he sees a version of the American flag that is colored green, yellow, and black.

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Explanation:

The reason why Marina sees the colour red, white and blue or the original colour of the American flag is that because of a phenomenon known as Afterimage. The retina in our eyes have mainly three receptors that are colour sensitive known as cones. These receptors can perceive the colour green, red and blue. Now when we look or stare at a particular colour for a long time, what happen is that our retina becomes tired and they ignore the colours that stared at. And now they work to form other colours at the retina just like the way when we produce other colour from the primary colour.

If the red receptor gets exhausted we will see the colour red. Likewise when we see the colour orange when we stare at the colour blue.

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2 years ago

1. A cyclist accelerates from 0 m/s to 9 m/s in 3 seconds. What is his<br>acceleration?

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The cyclist accelerates from 0 m/s to 9 m/s in 3 seconds with an acceleration of 3 m/s².

Answer:

Explanation:

Acceleration exerted by an object is the measure of change in speed or velocity of that object with respect to time. So the initial and final velocities play a major role in determining the acceleration of the cyclist. As here the initial velocity of the cyclist is the speed at rest and that is given as 0 m/s. Then after 3 seconds, the velocity of the cyclist changes to 9 m/s.

Then acceleration = change in velocity/Time.

$Acceleration = \frac{Change in velocity}{Time taken}$

Acceleration = (9-0)/3=9/3=3 m/s².

So the cyclist accelerates from 0 m/s to 9 m/s in 3 seconds with an acceleration of 3 m/s².

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