1.

The velocity of sound waves through any material depends on:

A. the material's density 'd' as well as its modulus of elasticity 'E'
B. the material's density 'd' only
C. neither the material's density 'd' nor its modulus of elasticity 'E'
D. the material's modulus of elasticity 'E' only
Answer» B. the material's density 'd' only


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