Ascallop forces open its shell with an elastic material called abductin whose elastic modulus is about 2.5× 10% n/m2 . if this piece of abductin is 3.0 mm thick and has a cross sectional area of 0.50 cm2 , how much potential energy does it store when compressed 1.0 mm?

U= 4.1×10^{-3} J

Explanation:

Given:

Young's modulus E= 2.5×10^5 N/m^2

thickness of material L_o =3.0 mm

Area A= 0.50 cm^2

ΔL= 1.0 cm

The potential energy is given by

U= 1/2FΔx

therefore

now putting values we get

U= 4.1×10^{-3} J

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