A 5-G Coin Is Dropped from a 300-M Building

question 46

Multiple Choice

A 5-g coin is dropped from a 300-m building. If it reaches a terminal velocity of 45 m/s, and the rest of the energy is converted to heating the coin, what is the change in temperature (in °C) of the coin? (The specific heat of copper is 387 J/kg⋅°C.)

• A) 9
• B) 2
• C) 5
• D) 21
• E) 0.5

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Definitions:

Semicircular Canals

Structures in the inner ear that are key components in maintaining balance and detecting rotational movements of the head.

Sensation

The process by which sensory receptors and the nervous system receive and represent stimuli from the environment.

Sense Of Taste

A sensory experience produced by substances in the mouth reacting chemically with taste receptor cells located on the taste buds.

Severely Cold

Describing an extreme low temperature condition that can potentially cause harm or discomfort.