The Iron Ball Shown Is Being Swung in a Vertical

question 45

Multiple Choice

The iron ball shown is being swung in a vertical circle at the end of a 0.7-m string. How slowly can the ball go through its top position without having the string go slack?

• A) 1.3 m/s
• B) 2.6 m/s
• C) 3.9 m/s
• D) 6.9 m/s
• E) 9.8 m/s

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Definitions:

Capillary Walls

The thin, permeable barriers of capillaries through which exchange of gases, nutrients, and wastes occurs between blood and tissues.

Simple Squamous Epithelium

A solitary layer of flattened cells lining areas engaged in diffusion and filtration, including blood vessels and lung air sacs.

Keratinized Epithelium

A type of epithelial tissue that has become hardened or cornified through the incorporation of keratin, often found in the outer layers of the skin, hair, and nails.

Squamous Epithelium

A type of epithelial tissue composed of flat, scale-like cells found in various body sites, including the skin and lining of body cavities.