A Measurement of an Electron's Speed Is 2

question 31

Multiple Choice

A measurement of an electron's speed is 2.0 × 10⁶ m/s and has an uncertainty of 10%.What is the minimum uncertainty in its position? ( h = 1.055 × 10^-34 J • s,

• A) 0.15 nm
• B) 0.29 nm
• C) 0.44 nm
• D) 0.60 nm
• E) 0.80 nm

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Definitions:

Cerebellum

A part of the brain at the back of the skull in vertebrates, responsible for coordinating and regulating voluntary muscle movements, balance, and posture.

Coordination

The organization of different elements or activities to enable them to work together effectively.

Short-Term Memory

A cognitive system with a limited capacity that is capable of temporarily holding information available for processing.

Reticular Formation

A network of nerves in the brainstem involved in regulating wakefulness and sleep-wake transitions.