Dust Particles in a Grain Elevator Frequently Have Masses of the Order

question 76

Multiple Choice

Dust particles in a grain elevator frequently have masses of the order of 1.0 × 10^-9 kg.If,to a first approximation,we model the dust particles as an ideal gas,what would be the rms speed of such a particle in air at 27°C? The Boltzmann constant is 1.38 × 10^-23 J/K .

• A)3.5 × 10^-6 m/s
• B)5.6 × 10^-5 m/s
• C)7.8 × 10^-4 m/s
• D)5.2 × 10^-3 m/s
• E)4.9 × 10^-2 m/s

---

Definitions:

Indentured Servants

Individuals who agreed to work for a specified number of years in exchange for passage to a new country, room, board, and often eventual freedom, a common practice in colonial America.

Barbados

is an island country in the Lesser Antilles of the West Indies, in the Caribbean region of North America, known for its beaches, British colonial architecture, and vibrant culture.

Apalachee

A Native American people historically living in the Florida Panhandle, known for their agricultural practices, involvement in the de Soto expedition, and subsequent decline following European colonization.

Iroquois

A confederation of six Native American tribes in the Northeast United States, known for their influential political system and contributions to democratic thought.