An Electron Inside a Hydrogen Atom Is Confined to Within

question 40

Multiple Choice

An electron inside a hydrogen atom is confined to within a space of about 0.110 nm. If the electron mass is 9.11 x 10^-31 kg, what is the uncertainty in the electron's velocity?

• A)1.05 × 10⁶ m/s
• B)1.50 × 10⁶ m/s
• C)1.05 × 10⁸ m/s
• D)1.50 × 10⁸ m/s
• E)1.05 × 10¹⁰ m/s

---

Definitions:

Ground Line

In paintings and reliefs, a painted or carved baseline on which figures appear to stand.

Engraved Line

A technique in printmaking and drawing where lines are incised onto a surface with a sharp tool, often used for detail and texture.

Megalithic Architecture

Structures made of large stones without the use of mortar or concrete, famous examples include Stonehenge and various dolmens, menhirs, and cromlechs across Europe.

Mudbrick Fortifications

Defensive structures made from sun-dried bricks, commonly used in ancient times across various civilizations for protection against invasions or attacks.