In a library or on the Internet, research a fuel cell that uses methanol for fuel. What is the reaction at the anode? What is the reaction at the cathode? What is the overall reaction? What is the standard cell potential? How many $\mathrm{kWh}$ can be generated from $1 \mathrm{~L}(0.792 \mathrm{~kg})$ of methanol?

Work with your group to research and complete each activity. For your three planets, list the ordered pairs representing (time, distance). Graph each set of ordered pairs on a coordinate plane and connect each set of points with a line. Compare the graphs. Then write equations to represent each relationship.

A researcher reported that the typical teenager needs 9.3 hours of sleep per night but gets only 6.3 hours. By the end of a 5-day school week, a teenager would accumulate about 15 hours of "sleep debt." Students in a high school statistics class were skeptical, so they gathered data on the amount of sleep debt (in hours) accumulated over time (in days) by a random sample of 25 high school students. The resulting least-squares regression equation for their data is

$$\widehat{Sleep debt} = 2.23 + 3.17(days).$$

(a) Interpret the slope of the regression line in context. (b) Are the students' results consistent with the researcher's report? Explain.

The mean area of the several thousand similar apartments in a new development is advertised to be 1250 square feet. A tenant group thinks the apartment are smaller than advertised. For this research question, describe an appropriate method for producing data to answer the question, and state an appropriate pair of hypotheses (null and alternative) to test.

The design of the automobile has changed significantly throughout the years, with safety becoming a bigger factor in the design. Conduct research to learn about safety features that have been incorporated in the design of automobiles over the years. Present your findings to the class. Use visual aids to showcase the safety features.

Research a specific example of literature from the Golden Age of Literature in England and Spain. Then, write an argument in which you argue whether the example remains relevant to today's society. Remember to consider what universal themes are presented in your example and whether it holds meaning across time and cultures.

'' In many cases, withholding the intervention from the control group is ethical since being in the study leaves them just as well off as they would have been had they not participated in the study. However, for vulnerable populations (e.g., students with disabilities) this may not be as straightforward. If researchers have good reason to believe char an intervention will benefit their study participants, denying this intervention to a control group may raise ethical questions. Conducting a pre-post test study addresses this ethical concern by offering the intervention to all study participants.'' -National Center for Technology Innovation. What does this document say about the importance of evaluating how a control group is affected by the research topic?

A research scientist for the Telektronics company obtains paired data consisting of the cost of manufacturing memory chips of different sizes and the amount of memory that can be stored on those chips. After finding that $r=0$, she concludes that there is no relationship between those two variables. Is that conclusion correct? Why or why not?

Conduct on line research to learn more about a recent class action lawsuit. Prepare a report on your findings. In the report, provide details on what company was involved in the lawsuit, the issues of the lawsuit , the types of injuries suffered, the outcome (was there a settlement or remedy, and if so, what was it), and any other pertinent information .

In Great Britain during the 1800 s political and social reforms changed people's lives for the better.

In an essay, analyze the causes and effects of British reforms during the 1800 s. To provide support for your essay, use specific examples from the chapter and from other research sources if needed.

Solve the given problems
A medical research lab is growing a virus for a vaccine that grows at a rate of $2.3\%$ per hour. If there are $500.0$ units of the virus originally, the amount present after t hours is given by $N = 500.0(1.023)^{t} .$ How many units of the virus are present after two days?

Thirty-four customers at Starbucks either ordered coffee (C) or did not order coffee (X).

Research question: At $\alpha = .05$, is the sequence random?

$$C X C X C C C C X X X X C X C X C X C C C X C X C C X C X X X C C X$$

Select one of the following agencies to research: Federal Communications Commission, Federal Reserve board, Federal Trade Commission, Food and Drug Administration, or Internal Revenue Service. Write a one-page report on the agency and what it does. Explain how the agency impacts economic, market, and employment trends.

Aerodynamics Scientists used the Transonic Tunnel at NASA Langley Research Center, Virginia, to study the dynamics of air flow. The elliptical opening of the Transonic Tunnel is 82 ft wide and 58 ft high. What is an equation of the ellipse? Plan How can a drawing help you solve this problem?