The Stanford Linear Accelerator Contains Hundreds of Brass Disks Tightly $\degree$

question 66

Multiple Choice

The Stanford linear accelerator contains hundreds of brass disks tightly fitted into a steel tube (see figure) . The coefficient of linear expansion of the brass is 2.00 *10^-5 per C $\degree$ . The system was assembled by cooling the disks in dry ice (-57 $\degree$ C) to enable them to just slide into the close-fitting tube. If the diameter of a disk is 80.00 mm at 43 $\degree$ C, what is its diameter in the dry ice?

• A) 78.40 mm
• B) 79.68 mm
• C) 80.16 mm
• D) 79.84 mm
• E) none of these

Understand the process and principles involved in phylogenetic analysis.

Discern the differences in evolutionary rates among genes and organisms.

Acknowledge how traits, such as wing numbers and color patterns, convey evolutionary history.

Differentiate between monophyletic, paraphyletic, and polyphyletic groups.

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Definitions:

Simple Cuboidal

Epithelial cells shaped like cubes or squares; these cells are found in glands and ducts and function in secretion or absorption.

Epithelium

a layer of cells forming the epidermis of the skin and the surface layer of mucous and serous membranes, playing roles in protection, secretion, and absorption.

Flat Cells

Cells that are flattened in shape, often found lining surfaces such as the skin or blood vessels, contributing to the formation of epithelial tissues.

Epithelial Tissue

Epithelial tissue is a layer of cells that forms the outer covering of the body and the lining of internal organs and structures, serving protective, absorptive, and secretory functions.