A copper cube 0.30m on a side is subject...

A copper cube 0.30m on a side is subjected to a shearing force of `F = 6.0xx10^6N` . Assuming that the shear modulus for copper is `4.2xx10^10 N//m^2` . The angle through which the cube shear is (approximately)

`0.09^@`

`0.15^@`

`0.21^@`

`0.32^@`

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