1. (a) What drives current? (b) What impedes current? (c) How does Ohm’s Law relate these quantities?
2. Why isn’t Ohm’s Law universally valid?
3. What is the resistance of an automobile headlight through which 3.50 A flows when 12.0 V is applied to it?
4. If a battery supplies energy to a circuit, what does the resistor do with that energy?
5. Calculate the effective resistance of a pocket calculator that has a 6.2 V battery and through which 0.20 mA flows.

IV) Many enzymes obey simple Michaelis-Menten kinetics, which are summarized
by the equation:
rate = (V max [S])/([S]+K m ); where V max = maximum velocity, [S] = concentration
of substrate; and K m = the Michaelis constant.
It is instructive to plug in a few values of [S] into the equation to see how rate is
affected. What are the rates for [S] equal to zero, equal to K m , and equal to infinite
concentration? Show all work.

using the Oyez audio file and transcript (Links to an external site.)Links to an external site. (go to "Opinion Announcement," which is a seven minute audio clip on the court's decision on the Snyder v. Phelps case), briefly summarize the facts of the Snyder v. Phelps (2011) case. By using facts presented, clearly explain why the Supreme Court ruled in favor of the Westboro Baptist Church. Then, tell us why you agree/disagree with the Court’s decision.

Consider the following code:

values = [2, 5, 8, 12, 15]
values2 = {v % 3 for v in values}

What will be the length of values2?

Consider the following code:

values = ["moose", "giraffe", "antelope", "tortoise", "chinchilla"]
values2 = [len(s) for s in values if "a" in s]

What will be the value of values2[1]?

Consider the following code:

numbers = [1, 2, 7, 9, 13]
numbers2 = [n // 2 for n in numbers]

What will be the value of numbers2[2]?

Suppose that k is a field which is not algebraically closed. a. Show that if I ⊂ k[x1, . . . , xn ] is maximal, then V(I) is either empty or a point in kn . Hint: Examine the proof of Theorem 11. b. Show that there exists a maximal ideal I in k[x1, . . . , xn ] for which V(I) = ∅. Hint: See the previous exercise. c. Conclude that if k is not algebraically closed, there is always a maximal ideal of k[x1, . . . , xn ] which is not of the form <x1 − a1, . . . , xn − an >

Scenario: Pacific Imaging Center is a small imaging center with two analogue film or screen units. As the director of the center, Juanita Hernandez has been asked to determine if the current staffing is correct for her place or should she add another technologist. She currently uses 2 mammography units, 2 technologists, and 1 aide. She has analyzed the current costs and determined the following:

Reimbursement per screen $75 Equipment costs per month ($800 per machine) $1,600 Technologists costs per mammography $20 Technologists aide per mammography $4 Variable cost per mammography $10 Equipment maintenance per month per machine ($350 per machine) $700

A. Solve for monthly volume to break even. B. Solve for monthly volume needed to break even at desired $5,000 per month profit level. C. Solve for volume needed to break even at new reimbursement of $112 per screen and no profit. D. Solve for volume needed to break even with an additional technologist

Expert Answer

PROMT: Climate Change Effects on Marine Iguana Mortality

1. Hypothesis: If the water temperature in the Galapagos Islands changed from being hot (around 77 degrees) to cold (under 70 degrees), then the mortality rate of Marine Iguanas will increase.
2. Variables: The independent variable is the temperature of the water that the Marine Iguanas live in. The dependent variable is the mortality rate of the Marine Iguanas. The mortality rate of the Marine Iguanas at the average water temperatures of their habitat.
3. Experimental Treatments: Iguana Group 1 will be water temperatures and marine iguana mortality rates before 1998. Iguana Group 2 will be water temperatures marine iguana mortality rates after 199
4. Prediction: By comparting the average water temperatures with the mortality rates every year before the sudden drop in the iguana population and after a trend will be able to be seen. If the water temperature is truly to blame for the mortality rate increase the water temperature will decrease as the population of Iguanas decreases. The control group is intended to show the average number of Iguanas that die due to other causes.

QUESTION ----->>>>> Write a detailed summary of what is wrong with the proposed study ^^^^^????

Your answer should use scientific vocabulary words and address the following questions.

1. Is the study feasible? Will it actually be possible to conduct the proposed study in a controlled manner that produces meaningful data? If there is more than one variable changing simultaneously, no controls, or no replication, then the study is unlikely to produce meaningful data. If there is no way to monitor an experiment in the environment, or no way to conduct the experiment in a controlled environment, like a laboratory, then the experiment is unlikely feasible
2. Can you tell from the text if the experiment is designed to be conducted by performing treatments, or by analyzing observational data about a species and its habitat
3. Is there a testable hypothesis? Is the study set up so that it will be possible to measure the effects in a quantifiable way? What will be measured? Is there a control group and a treatment group? Or, an independent variable like temperature, and a dependent variable like germination time
4. Could you graph the results of this experiment? If so, how would you do it? A column chart to show treatments and controls? A scatter plot or a line graph to look at how changes in the independent variable affect the dependent variable?

Exercise 3

Step 1:

When you read Storing Data Using Sets, you learned that Python's set type allows us to create mutable collections of unordered distinct items. The items stored in a set must be immutable, so sets can contain values of type int, float or str, but we can't store lists or sets in sets. Tuples are immutable, so we can store tuples in sets. Try this experiment, which creates a set containing the points (1.0, 2.0), (4.0, 6.0) and (10.0, -2.0). What is displayed when points is evaluated? Write the question and the answer in lab11.py using python comments. >>> points = {(1.0, 2.0), (4.0, 6.0), (10.0, -2.0)} >>> points We can also initialize the set this way. Try this experiment. What is displayed when points is evaluated? Write the question and the answer in lab11.py using python comments. >>> point1 = (1.0, 2.0) >>> point2 = (4.0, 6.0) >>> point3 = (10.0, -2.0) >>> points = {point1, point2, point3} >>> points We could instead start with an empty set, and call the add method to initialize it, one point at a time. Try this experiment. What is displayed when points is evaluated? Write the question and the answer in lab11.py using python comments. >>> points = set() >>> points.add(point1) >>> points.add(point2) >>> points.add(point3) >>> points

Step 2:

What happens if we try to insert a point that is already in the set? Try this experiment: >>> points.add(point2) >>> points How many copies of point (4.0, 6.0) are in the set? Write the question and the answer in lab11.py using python comments.

Step 3:

Can individual points in the set be retrieved by specifying an index (position)? Try this experiment. What is displayed when points[0] is evaluated? Write the question and the answer in lab11.py using python comments. >>> points[0]

Step 4:

We can use a for loop to iterate over all the points in the set. What is displayed when this loop is executed? Write the question and the answer in lab11.py using python comments. >>> for point in points: ... print(point) ...

Which firms ( at least 3) have consitently reported a strong return to its shareholders? Identify firms with the most favorable earning trend?

Write a Java program to read in the 10 numbers in the example file Book1.csv provided above. The program should sum all the numbers, find the lowest number, find the highest number, and computer the average. Upon completion of the processing, the program should write a new text file named stats.txt with the information found in the following format where xxx represents a number calculated above.

The sum of the numbers is: xxx
The lowest number is: xxx
The highest number is : xxx
The average of the numbers is : xxx

Using the class Poem below. Write a complete Java program that creates three different objects of type Poem. The program shall then open a text file named poems.txt for writing and write the information about each poem to the text file. The program shall NOT write the toString() version of the object to the file, but write first the poem name on a line and then the poet name on a second line for each poem.

/**
 * Poem.java
 *
 * A class representing information about a poem for use in Chapter 5 Exercise 2
 *
 */
public class Poem
{

        private String name;
        private String poet;

        /**
         * no-arg constructor
         */
        public Poem()
        {
                // initialize attributes
                name = "unknown";
                poet = "unknown";
        }

        /**
         * @return the name
         */
        public String getName()
        {
                return name;
        }

        /**
         * @param name the name to set
         */
        public void setName(String name)
        {
                this.name = name;
        }

        /**
         * @return the poet
         */
        public String getPoet()
        {
                return poet;
        }

        /**
         * @param poet the poet to set
         */
        public void setPoet(String poet)
        {
                this.poet = poet;
        }

        @Override
        public String toString()
        {
                return "Poem [name=" + name + ", poet=" + poet + "]";
        }

}

===Exercise 3 Using the Poem class given in exercise 2, write a Java program to read from a text file named poem2.txt provided before. The program shall read the name and poet of each poem, create an object of type Poem for each name/poet pair and print all the read poem infor to the console.

We Real Cool
Gwendolyn Brooks
I Know Why the Caged Bird Sings
Maya Angelou
Hope is the Thing with Feathers
Emily Dickinson
The Road Not Taken
Robert Frost