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Toughness is hard to measure, but it will usually refer to the strength of someone, or how confident they act, and go about themselves. People that are tough are usually more masculine, and are generally athletic.

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9y ago
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14y ago

Unit of Toughness is Joules per cubic meter J/m3 and inch-pound-force per cubic inch (in-lbf/in3, in US customary units .

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Q: What is toughness?
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