A 1000-Kg Object Hangs from the Lower End of a Steel

question 8

Multiple Choice

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:

Glucagon

A hormone produced by the pancreas that works to raise the concentration of glucose and fatty acids in the bloodstream.

Insulin

A hormone produced by the pancreas that regulates the level of glucose in the blood.

Deoxyribonucleic Acid

A molecule that carries the genetic instructions used in the growth, development, functioning, and reproduction of all known living organisms and many viruses.

Endocrine Glands

Glands of the endocrine system that release hormones directly into the bloodstream, regulating various bodily functions including metabolism, growth, and mood.