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Physics Investigation - Young's Modulus

Hey,
How do you calculate the Young's Modulus of a material if the speed of sound and the material density is known?

Any help would be appreciated more than you know x
Reply 1
Original post by JennyBlair
Hey,
How do you calculate the Young's Modulus of a material if the speed of sound and the material density is known?

Any help would be appreciated more than you know x


In simplistic terms (a one dimensional solid), the following for a longitudinal wave (sound) is true:

vp=Eρv_p = \sqrt{\dfrac{E}{\rho}}

Where the phase velocity vpv_p is the speed of sound in the material, ρ\rho is the density and EE is the Young's Modulus.
Reply 2
Original post by Phichi
In simplistic terms (a one dimensional solid), the following for a longitudinal wave (sound) is true:

vp=Eρv_p = \sqrt{\dfrac{E}{\rho}}

Where the phase velocity vpv_p is the speed of sound in the material, ρ\rho is the density and EE is the Young's Modulus.


Thank you so much, you are a life saver x :biggrin:
Reply 3
Original post by JennyBlair
Thank you so much, you are a life saver x :biggrin:


No worries, just remember to use S.I units.
Reply 4
Original post by Phichi
No worries, just remember to use S.I units.


Will do - thanks.

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