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Which consequence results when Inca trapezoidal stone masonry joints loosen?

A)Structure experiences resonant amplification.
B)Sismic energy dissipates via friction.
C)Stone thermal expansion induces shear.
D)Water permeates causing freeze-thaw.

💡 Explanation

Resonant amplification occurs because the Frequency Matching Mechanism allows seismic waves to constructively interfere when joints fail. This matching exposes inherent weaknesses, therefore creating resonance, rather than damping due to joint friction as intended for quake resistance.

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