A 30-N Stone Is Dropped from a Height of 10

question 95

Multiple Choice

A 30-N stone is dropped from a height of 10 m and strikes the ground with a speed of 13 m/s. What average force of air friction acted on the stone as it fell?

• A) 4.1 N
• B) 2.9 N
• C) 7.2 N
• D) 1.2 N
• E) 0.13 kN

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Definitions:

Aeration

The process of introducing air into a material, such as soil or water, to improve oxygenation and reduce compaction or concentration of gases.

Nutrient-holding Capacity

The ability of soil to retain nutrients and make them available to plants, influencing soil fertility and agricultural productivity.

Soil Textures

Describes the feel, look, and consistency of soil based on the size and distribution of its particles, such as sand, silt, and clay.

Chemical Properties

Characteristics of a substance that become evident during a chemical reaction, revealing the substance's composition.