An Object Consists of a Rod (Of Length 3

question 41

Multiple Choice

An object consists of a rod (of length 3.00 m and negligible moment of inertia) to which four small 3.50-kg masses are attached,one at each end and one at each point on the rod spaced at 1.00-m intervals.The moment of inertia of this object about an axis perpendicular to the rod and through one of the end masses:

• A)is 49 kg·m².
• B)is 21 kg·m².
• C)is 31.5 kg·m².
• D)is 10.5 kg·m².
• E)cannot be uniquely determined until it is stated which inner mass the axis goes through.

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Definitions:

Pia Mater

The inner membrane covering the brain and spinal cord; the innermost of the meninges; also see dura mater and arachnoid.

Arachnoid

The middle of the three meningeal layers that cover and protect the brain and spinal cord; see pia mater and dura mater.

Procedural Memory

A type of long-term memory that is responsible for knowing how to perform certain tasks without conscious awareness of the learning process.

Limbic System

A complex system of nerves and networks in the brain, involving several areas near the edge of the cortex and within the forebrain, responsible for the control of basic emotions and drives.