Tensile Stress and Strain: a 1000-Kg Object Hangs from the Lower

question 14

Multiple Choice

Tensile stress and strain: A 1000-kg object hangs from the lower end of a steel rod 5.0 m long that is suspended vertically. The diameter of the rod is 0.80 cm and Young's modulus for the rod is 210,000 MN/m². What is the elongation of the rod due to this object?

• A) 1.2 cm
• B) 0.46 cm
• C) 0.12 cm
• D) 1.8 cm
• E) 0.047 cm

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Definitions:

Suppressor T-cells

A type of T cell that regulates the immune response to avoid attacking one's own cells or causing excessive reactions.

Serous Exudate

A clear, thin, and watery fluid that leaks out of blood vessels into nearby tissues, often seen in inflammation or as a result of injury.

Inflammatory Response

The body's protective reaction to infection, irritation, or injury, characterized by redness, warmth, swelling, and pain.

Infection

The invasion and multiplication of microorganisms such as bacteria, viruses, and fungi in body tissues, which may cause disease or inflammation.