First slide

Elastic Modulie

Question

A cube is shifted to a depth of 100 m in a lake. The change in volume is 0.1% the bulk modulus of the material is nearly

Moderate

A

10pa
B

$10^{4} Pa$
C

$10^{7} Pa$
D

$10^{9} Pa$

Solution

$K = \frac{ΔP}{(ΔV / V)} = \frac{ρ gh}{(ΔV / V)} = \frac{10^{3} \times 10 \times 100}{(0 .1 / 100)} N / m^{2} = 10^{9} Pa$

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