As part of a science project, you study traffic patterns in your city at an intersection in the middle of downtown. You set up a device that counts the cars passing through this intersection for a 24-hour period during a weekday. The graph of hourly traffics was discussed earlier.? d. Provide a hypothesis explaining the trend in numbers of cars over the course of the day.

As part of a science project, you study traffic patterns in your city at an intersection in the middle of downtown. You set up a device that counts the cars passing through this intersection for a 24-hour period during a weekday. The graph of hourly traffics was discussed earlier.? c. Briefly describe the trend in the number of cars over the course of the day.

Animal energy. Adult cheetahs, the fastest of the great cats, have a mass of about $70 \mathrm{~kg}$ and have been clocked at up to $72 \mathrm{mph}(32 \mathrm{~m} / \mathrm{s})$.
(a) How many joules of kinetic energy does such a swift cheetah have?
(b) By what factor would its kinetic energy change if its speed were doubled?

As part of a science project, you study traffic patterns in your city at an intersection in the middle of downtown. You set up a device that counts the cars passing through this intersection for a 24-hour period during a weekday. The graph of hourly traffics was discussed earlier.? b. At what time(s) does the lowest number of cars pass through the intersection?

Although, in general, science has advanced our standard of living tremendously, there is sometimes a “dark side” to science. Give an example of the misuse of science and explain how this has had an adverse effect on our lives

As part of a science project, you study traffic patterns in your city at an intersection in the middle of downtown. You set up a device that counts the cars passing through this intersection for a 24-hour period during a weekday. The graph of hourly traffics was discussed earlier.

At what time(s) does the highest number of cars pass through the intersection?

True or false? If a theory is disproven, then all of the observations that support that theory are also disproven . Explain.

Use a change of variables to find the volume of the solid region lying below the surface z = f(x, y) and above the plane region R. f(x, y) = √x+y R: region bounded by the triangle with vertices (0, 0), (a, 0), (0, a), where a > 0

Several words are used in this section that students sometimes may find hard to distinguish. Write your own definitions of the following terms, and bring them to class for discussion with your instructor and fellow students: theory, experiment, natural law, hypothesis.

Here is a small part of the data set that describes the students in an AP Statistics class. The data come from anonymous responses to a questionnaire filled out on the first day of class.

$$\begin{array}{l} \text{ } & \text{ } & \text{ } & \text{ } & \text{Homework} & \text{ }\\ \text{ } & \text{Grade} & \text{ } & \text{Children} & \text{last night} & \text{Android or}\\ \text{Gender} & \text{level} & \text{GPA} & \text{in family} & \text{(min)} & \text{iPhone?}\\ \hline \text{F} & \text{9} & \text{2.3} & \text{3} & \text{$0-14$} & \text{IPhone}\\ \text{M} & \text{11} & \text{3.8} & \text{6} & \text{$15-29$} & \text{Android}\\ \text{M} & \text{10} & \text{3.1} & \text{2} & \text{$15-29$} & \text{Android}\\ \text{F} & \text{10} & \text{4.0} & \text{1} & \text{$45-59$} & \text{IPhone}\\ \text{F} & \text{10} & \text{3.4} & \text{4} & \text{$0-14$} & \text{IPhone}\\ \text{F} & \text{10} & \text{3.0} & \text{3} & \text{$30-44$} & \text{Android}\\ \text{M} & \text{9} & \text{3.9} & \text{2} & \text{$15-29$} & \text{IPhone}\\ \text{M} & \text{12} & \text{3.5} & \text{2} & \text{$0-14$} & \text{IPhone}\\ \end{array}$$

What are the variables? Classify each as categorical or quantitative.

As discussed earlier, the statement is made that it is worthwhile for scientists, auto mechanics, doctors, politicians, and poets to take a scientific approach to their professions. Discuss how each of these people could use a scientific approach in his or her profession.

True or false? Once we have a set of hypotheses that agrees with our various observations, we assemble them into a theory that is often called a model.

Sketch a flowchart of the steps in the scientific method. Then define each part of the method.

As stated in the text, there is no one scientific method. However, making observations, formulating hypotheses, and performing experiments are generally components of “doing science.” Read the following passage, and list any observations, hypotheses, and experiments. Support your answer.
Joyce and Frank are eating raisins and drinking ginger ale. Frank accidentally drops a raisin into his ginger ale. They both notice that the raisin falls to the bottom of the glass. Soon, the raisin rises to the surface of the ginger ale, and then sinks. Within a couple of minutes, it rises and sinks again. Joyce asks, “I wonder why that happened?” Frank says, “I don’t know, but let’s see if it works in water.” Joyce fills a glass with water and drops the raisin into the glass. After a few minutes, Frank says, “No, it doesn’t go up and down in the water.” Joyce closely observes the raisins in the two glasses and states, “Look, there are bubbles on the raisins in the ginger ale but not on the raisins in the water.” Frank says, “It must be the bubbles that make the raisin rise.” Joyce asks, “OK, but then why do they sink again?”