True or false: Ultimate tensile strength increases as the thickness of a solid material sample increases. True

False

False.

Explanation:

Tensile strength should remain constant, regardless of thickness. For larger cross sections, it can slightly increase because the atoms in the center become more constricted and therefore less responsive to the applied stress.

Tensile strength should remain constant, regardless of thickness. For larger cross sections, it can slightly increase because the atoms in the center become more constricted and therefore less responsive to the applied stress.FALSE

if you already have the answer to (a), then just work out how many periods there are in 1 minute, and that's the answer to (c).