A Wire of Circular Cross Section of Diameter D and Length

question 54

Multiple Choice

A wire of circular cross section of diameter d and length L is stretched an amount $\Delta$ L by a steady force F.An equal force would produce how much stretch in a similar wire of diameter 2d and length 2L?

• A)\(\Delta\)L/8
• B)\(\Delta\)L/4
• C)\(\Delta\)L/2
• D)2\(\Delta\)L
• E)4\(\Delta\)L

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Definitions:

Internal Iliac Vein

A vein that drains blood from the pelvis and lower limbs back towards the heart, merging with the external iliac vein to form the common iliac vein.

Femoral Vein

A major blood vessel in the thigh that carries deoxygenated blood from the lower limb back to the heart.

Anterior Tibial Vein

The anterior tibial vein is a blood vessel that drains oxygen-depleted blood from the front portion of the lower leg to the popliteal vein.

Elastic Tissue

A type of connective tissue composed of elastic fibers that allows many tissues in the body to resume their shape after stretching or contracting.