Question

We can easily move our hand in air but to do the same through a solid block of wood, we need a karate expert. Give reasons.

Answer 1

Because in air the molecules( atom) are not tightly packed, but in wood the molecules ( atom)are tightly packed.so we can move our hand easily in air but we cannot move our hand in solid block.

Answer 2

Answer:

this is because the particle of air are not close to each other but the particle of solid block are very close to each other there is no space between the particle of solid block

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