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4. Assume that young's modulus for silver is 7.75 x 1010 N/m. If it has a density of 10.5 x 10kg/m', how fast does sound

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4. Assume that young's modulus for silver is 7.75 x 1010 N/m. If it has a density of 10.5 x 10kg/m', how fast does sound travel through the silver? 5. Copper has a density of 9 g/cm3 and a bulk modulus of 1.2 x 1011 N/m. What is the speed of a wave through it

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