A Uniform Wire Is Bent into a Semi-Circle of Radius $\pi$

question 19

Multiple Choice

A uniform wire is bent into a semi-circle of radius R and laid out such that it is entirely in the x-y plane .The semicircle has its ends fixed on the x axis at x = -R and x = +R.With the exception of its end points,the semicircle is entirely above the x-axis (i.e.the y-coordinates of all points on its arc are positive) .What is the y coordinate of its center-of-mass?

• A)2R/\(\pi\)
• B)R/3
• C)R/2
• D)2R
• E)R/ 

Understand how to calculate and record depreciation expense using the straight-line method.

Grasp the impact of failing to record adjusting entries on financial statements.

Learn to prepare adjusting entries for accrued expenses and understand their impact.

Understand the concept and accounting treatment of accrued revenues.

---

Definitions:

Cerebral Cortex

The outer layer of the cerebrum composed of gray matter and consisting mainly of nerve cell bodies.

Alpha Rhythm

A pattern of smooth, regular electrical oscillations in the human brain typically occurring when a person is awake but relaxed, usually in the frequency range of 8-12 Hz.

Theta Rhythm

A pattern of brainwave activity, typically in the range of 4-8 Hz, associated with stages of sleep and meditative states.

Limbic System

In vertebrates, an action system of the brain. In humans, plays a role in emotional responses, motivation, sexual behavior, autonomic responses, and biological rhythms.