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Arrange four quarter coins touching each other as a 2-D square lattice. Calculate the area of...

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Physics

Arrange four quarter coins touching each other as a 2-D squarelattice. Calculate the area of the air-space (dead-space). (Ignorethe thickness of the quarters.) Repeat the problem for a triangularlattice.

Answer & Explanation Solved by verified expert
3.8 Ratings (723 Votes)
The radius of a quarter is 1213 mmIn the first case for square lattice the empty space inside theblack square is the dead spaceSo as    See Answer
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