Large Cranes Have Stabilizers That Extend Beyond the Wheels of the Machines

question 59

Multiple Choice

Large cranes have stabilizers that extend beyond the wheels of the machines. If a crane has stabilizers that extend out by the width of the machine, by what factor can the load be increased before it tips over? Assume that the center of gravity of the crane without the load is in the middle of the crane.

• A) 1
• B) 2
• C) 3
• D) 4
• E) 5

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Definitions:

Attachment

A deep emotional bond that connects one person to another, often discussed in the context of the bond between a child and caregiver.

Artificial Cloth Mothers

A term from psychological experiments that refers to surrogate mother figures made of cloth used to study attachment behaviors in primates.

Limbic System

A complex system of nerves and networks in the brain, involved with instinct and mood. It controls the basic emotions (fear, pleasure, anger) and drives (hunger, sex, dominance, care of offspring).

Frontal Lobes

The part of the brain located at the front of each cerebral hemisphere, responsible for higher cognitive functions, such as reasoning, planning, parts of speech, movement, emotions, and problem solving.