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If you tap on them, one of them may "sound hollow". In general, certain waves (like sound) will be affected differently, depending on whether the balls are hollow or solid.

If you tap on them, one of them may "sound hollow". In general, certain waves (like sound) will be affected differently, depending on whether the balls are hollow or solid.

If you tap on them, one of them may "sound hollow". In general, certain waves (like sound) will be affected differently, depending on whether the balls are hollow or solid.

If you tap on them, one of them may "sound hollow". In general, certain waves (like sound) will be affected differently, depending on whether the balls are hollow or solid.

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14y ago

If you tap on them, one of them may "sound hollow". In general, certain waves (like sound) will be affected differently, depending on whether the balls are hollow or solid.

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Q: How do you identify two balls having same external radius and weight one hollow and the other solid of different materials?
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