An Electron Inside a Hydrogen Atom Is Confined to Within $0.12 \mathrm {~nm}$

question 46

Multiple Choice

An electron inside a hydrogen atom is confined to within a space of about $0.12 \mathrm {~nm}$ . What is the uncertainty in this electron's speed? (melectron $= 9.11 \times 10 ^ { - 31 } \mathrm {~kg} , h = 6.626 \times 10 ^ { - 34 } \mathrm {~J} \cdot \mathrm { s }$ )

• A) \(4.8 \times 106 \mathrm {~m} / \mathrm { s }\)
• B) \(3.1 \times 10 ^ { 5 } \mathrm {~m} / \mathrm { s }\)
• C) \(3.1 \mathrm {~km} / \mathrm { s }\)
• D) \(9.6 \times 10 ^ { 5 } \mathrm {~m} / \mathrm { s }\)
• E) \(4.8 \mathrm {~m} / \mathrm { s }\)

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Definitions:

Superseding Cause

An intervening cause that alters the natural sequence of events and relieves a defendant from liability for harm caused after the intervention.

Legal Duty

An obligation imposed by law where an individual is required to adhere to a standard of reasonable care while performing any acts that could harm others.

Superseding Cause

refers to an unforeseeable event that interrupts the chain of causation and becomes the primary reason for an injury, thereby relieving the defendant from liability in a negligence claim.

Causal Chain

A sequence of events where each event is the result of the preceding one and causes the next.