Imagine That You Have Been Given the Job of Designing

question 13

Multiple Choice

Imagine that you have been given the job of designing a fountain to be the centrepiece of a new shopping mall on the Gold Coast. The fountain will consist of a single upward jet of water, launched from a pipe of radius 4 mm and length 1.5 m. The pipe is fed by recycled water, pushed by a pump which produces a pressure difference of 100 000 Pa. With what speed will the water come out of the pipe? The viscosity of water is 0.001 Pa s.

• A) 1.3 m s-1.
• B) 4.2 m s-1.
• C) 13.3 m s-1.
• D) 419 m s-1.
• E) 133 m s-1.ANS

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Definitions:

Construction Supplies

Materials and goods used in the building and construction industry.

Costs of Debt

The effective rate that a company pays on its total debt, including interests and fees.

Costs of Equity

The return that investors require for investing in a company's equity, reflecting the risk associated with owning the equity of the company.