Material 1 Has Young's Modulus Y1 and Density ρ1,material 2

question 60

Multiple Choice

Material 1 has Young's modulus Y1 and density ρ1,material 2 has Young's modulus Y₂ and density ρ₂,and material 3 has Young's modulus Y3 and density ρ​₃.If Y1 > Y₂ > Y3 and if ρ1 < ρ2 < ρ​3,which material has the highest speed of sound?

• A)material 1
• B)material 2
• C)material 3
• D)They could all have equal speeds of sound.

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Definitions:

IRR Method

The Internal Rate of Return method, a capital budgeting technique used to evaluate and compare the profitability of investments or projects.

Hurdle Rate

The minimum rate of return on an investment required by a manager or investor.

Capital-Budgeting

The process that a company undergoes to evaluate potential major projects or investments, such as new machinery or expansion plans.

Risk-Free Rate

The expected yield from an investment that carries no risk of losing money, often shown through the interest rates of government securities.