The density of a certain metal solid is 7 × 10³ kg/m³,and its Young's modulus is 13 × 10¹⁰ N/m².What is the speed of sound in this metal?

Question

Quizplus · Accepted Answer

The speed of sound in a solid can be calculated by the formula:

v = sqrt(Y/ρ)

where Y is the Young's modulus and ρ is the density. Substituting the given values, we get:

v = sqrt(13 × 10^10 N/m^2 / 7 × 10^3 kg/m^3) = 4,345.24 m/s

Therefore, the closest option is C) 4,300 m/s.

The Density of a Certain Metal Solid Is 7 ×