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Leviafan [203]
2 years ago
15

A boy who weighs 30 kg is skateboarding at a speed of 5 m/s. What is the boys kinetic energy?

Chemistry
1 answer:
Assoli18 [71]2 years ago
6 0

the answer is 375 joules

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What is the #1 or main component of the earths ancient atmosphere?
mars1129 [50]
I am pretty sure it was composed of mostly CO₂.  
8 0
3 years ago
The more gravity pulls down on an object the less the object weighs true or false
Contact [7]

false

Explanation:

The more gravity pulls down on an object it gets heavier. Weight is just the amount of force gravity is putting on something. So if gravity is pulling it down more ut would get heavier.

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3 years ago
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Why is this mars landing a new era for space exploration
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3 0
3 years ago
NaCl is ___ formula of common salt
MrMuchimi

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None of them, D

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5 0
3 years ago
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How many polar bonds are found in this molecule
Law Incorporation [45]
A bond is non polar if it is between same atoms and polar if it is between different atoms.

Same atoms are like two dogs of same strength pulling a bone towards towards each other. But when it’s different atoms it’s like a big dog and small dog then the bone is more towards bigger dog. So it’s the same way in bonds.

Bonds are made up of electrons, when the more stronger pulling atom is present than other the electrons are more towards it and as a result we have polar bond. There is development of a kind of a negative pole and a positive pole.

The stronger atom has electrons towards itself so it has a little more negative charge while the other atom has positive charge. This makes bond polar.

So just look for bond between two different atoms, it would be polar.

Look at the pic below to see the answer.

Marked with green is bond between same atoms... one carbon and another carbon so it is not polar and test marked with blue are polar.

Well the answer should have been 10 but since the bonds at 3 and 8 are two of same type we count only one of them.


The answer is 8... well the answer should be 10 otherwise... discuss it with ur teacher

6 0
3 years ago
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