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

question 25

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

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Definitions:

PNS

The Peripheral Nervous System, which includes all the nerves that lie outside the brain and spinal cord.

Reticular Formation

Midbrain area in which nuclei and fiber pathways are mixed, producing a netlike appearance; associated with sleep–wake behavior and behavioral arousal; also called the reticular activating system (RAS).

Sleep

A naturally recurring state of mind and body characterized by altered consciousness, relatively inhibited sensory activity, and inhibition of nearly all voluntary muscles.

Orienting Responses

The instinctive redirection of attention toward a new or important stimulus, often involving physical positioning toward the stimulus.