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Matter in Our Surroundings
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07/11/2021 4:09 pm
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Explain why, we can easily move our hand in air but to do the same through a plank of wood, we need a karate expert.
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07/11/2021 4:10 pm
There will be a weak force of attraction between the particles in air. So we can move our hands on air whereas the particles in solid plank are closely packed and a strong force of attraction exists between them. Hence it needs a huge force to overcome the attraction which a karate expert can do.