Imagine That You Are Working at an Outback Mine

question 17

Multiple Choice

Imagine that you are working at an outback mine. In part of the on-sight mineral separation plant, a slurry consisting of a mixture of mineral dust and water flows from one part of the plant to another down a pipe of diameter 10 cm. The flow needs to remain turbulent, as otherwise the mineral dust will settle to the bottom of the pipe and block it. If the density of the flurry is 2000 km m-3 and its viscosity is 0.001 Pa s, what is the minimum velocity the slurry must flow at to ensure it remains turbulent?

• A) 2.0 cm s-1.
• B) 4.0 cm s-1.
• C) 6.0 cm s-1.
• D) 12.0 cm s-1.
• E) 24.0 cm s-1.ANS

---

Definitions:

Milgram Experiment

A psychological experiment conducted by Stanley Milgram in the 1960s to study obedience to authority, where participants were instructed to administer electric shocks to another person.

Stanford University Prison Experiment

A psychological study conducted by Philip Zimbardo in 1971 at Stanford University, where students were assigned roles of prisoners and guards to explore the effects of perceived power.

Generalization

Drawing a conclusion about a certain characteristic of a population based on a sample from it.

Logical Support

The provision of reasons or evidence to justify a claim or argument.