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If $1 equals 17 South African rand one year, and the next year it equals 19 South African rand, the dollar has

Why is it difficult to add competition to a market that has a natural monopoly such as an electric power company?

“Our economic growth this year is lower than last year’s growth. So we need to boost our economic growth.” The first statement is a ________________ statement, and the second statement is a ______________ statment.

If the U.S. protects its T-shirt industry by, for example, levying tariffs on Chinese T-shirts, what happens to the American T-shirt market?

According to this headline, what will happen to the market for cannabis?

How should countries decide what to trade?

The United States produces many different products. What should it export, and what should it import?

Complete the following statements: The FWHM is a measure of the [answer1] of a scintillation detector. When the FWHM is used to compare two scintillation detectors, a [answer2] (larger or smaller) value indicates a [answer3] (better or worse) detector.   

Explain the principles of energy determination in energy-sensitive detectors, by answering the following questions: What transformations must occur in the scintillation crystal and photomultiplier tube in order to convert a gamma ray into an electronic signal?   What factors affect the photomultiplier tube and signal strength? How does this series of transformations relate to the determination of gamma ray energy? What factors of a scintillation detector defines the broadness of the peaks seen on scintillation detector energy spectra? 

(Extra credit: up to 6 points) What is the purpose of the chi-square test and what information does it provide us about the performance of the scintillation detector?