Monday

March 2, 2015

March 2, 2015

Post a New Question | Current Questions

**math**

An elementary school has a large lunch room containing many tables. One day at lunch, the children at one table decide to see how long it will take to spread a rumor throughout the entire room. Each minute, the number of tables that know the rumor doubles in size. If it takes ...
*Friday, August 3, 2012 at 12:10am*

**math**

An elementary school has a large lunch room containing many tables. One day at lunch, the children at one table decide to see how long it will take to spread a rumor throughout the entire room. Each minute, the number of tables that know the rumor doubles in size. If it takes ...
*Thursday, August 2, 2012 at 1:57pm*

**Elementary Algebra**

How do I solve the system of equations by graphing? example:4x+y+2, x= 1/2+5
*Wednesday, August 1, 2012 at 4:41pm*

**Elementary Algebra**

Simplify:2x-9 Divided by 9-2x
*Wednesday, August 1, 2012 at 11:27am*

**Elementary Algebra**

I need an explanation on how to work out negative exponents. Example: (3a^-2b^3)^-2
*Saturday, July 28, 2012 at 10:07am*

**english**

Structure an ESA (straight arrow pattern) based lesson for an elementary level class in which the learners would learn the vocabulary of clothes and be able to use it when describing what people wear and are wearing
*Wednesday, July 11, 2012 at 11:54am*

**College Essay**

One seemingly normal day in junior year, my friend and I were taking a train together home from school. We were on an extremely crowded F train headed for Queens. Packed against the door that separated one train car from another, overly warm and squished with no pole nearby to...
*Monday, June 18, 2012 at 5:31pm*

**Elementary Math**

If a class choose these color RED 2/16 Blue 5/16 Green 3/16 What fraction of the class chooses one of these three colors? Am I correct if I said 5/16 of the class chooses one of these three colors?
*Saturday, June 16, 2012 at 2:13pm*

**math**

in one elementary school class the following information on sports preferences was obtained: 7 liked tennis; 11 liked baseball; 9 liked soccer; 5 liked tennis and baseball; 3 liked baseball and soccer; 2 liked tennis and soccer; and 2 liked all three sports. How many students ...
*Wednesday, June 13, 2012 at 3:44pm*

**Elementary Statistics**

Given a level of confidence of 95% and a population standard deviation of 13, answer the following: (A) What other information is necessary to find the sample size (n)? (B) Find the Maximum Error of Estimate (E) if n = 82.
*Tuesday, June 12, 2012 at 8:31pm*

**Elementary Statistics**

1) Construct a confidence interval of the population proportion at the given level of confidence. x=60,n=300, 99% confidence. The 99% confidence interval is (_,_) 2) A researcher wishes to estimate the proportion of adults who have high-speed internet access. What size sample ...
*Wednesday, June 6, 2012 at 10:22pm*

**communication**

Do you think the following is a weak or strong thesis statement: “The subject of this paper is my experience with teaching elementary school children”? If yes, why is it weak? How could you improve it? If no, what qualities do you think it has that make it adequate?
*Saturday, June 2, 2012 at 8:17pm*

**math**

the letters elementary are placed in a bag. one letter is randomly selected from the bag. what is the probability the letter selected is a consonant?
*Saturday, May 26, 2012 at 2:49pm*

**I need correct answers for all please !**

1. Regarding management and leadership, which statement is most accurate? A. Leaders can be good managers, and good managers can be leaders. B. Leaders aren’t managers, and managers aren’t leaders. C. Leadership and management are entirely unrelated. D. Most ...
*Thursday, May 24, 2012 at 11:53pm*

**chemistry kinetics**

1. Statement-I : Fractional order reactions are not elementary reactions. Statement-II : For an elementary reaction, order must be same as molecularity. are these statements true? give reason.
*Thursday, May 24, 2012 at 1:06am*

**Management**

1. Regarding management and leadership, which statement is most accurate? A. Leaders can be good managers, and good managers can be leaders. B. Leaders aren’t managers, and managers aren’t leaders. C. Leadership and management are entirely unrelated. D. Most ...
*Thursday, May 17, 2012 at 12:28pm*

**Please Proofread Any Suggestions Will Help**

Every morning, I drive to work; as I get closer I can hear the cadence calling of all the basic training units on Fort Benning, Georgia. Regardless of what is on the training schedule for the rest of the day, we conduct Army Physical Readiness Training (APRT). At a minimum the...
*Sunday, April 22, 2012 at 1:44pm*

**calculus**

The Institute finds that the average student taking Elementary Shorthand will progress at a rate given by dQ/dt=k(80-Q) in a 20 -wk course, where Q(t) measures the number of words of dictation a student can take per minute after t wk in the course. If the average student can ...
*Saturday, April 21, 2012 at 1:27pm*

**Inttroduction To Business**

1. Regarding management and leadership, which statement is most accurate? A. Leaders can be good managers, and good managers can be leaders. B. Leaders aren’t managers, and managers aren’t leaders. C. Leadership and management are entirely unrelated. D. Most ...
*Thursday, April 19, 2012 at 4:03am*

**science**

How do quarks differ from other elementary particles?
*Friday, April 6, 2012 at 3:47pm*

**math for elementary teachers**

Suppose that carpeting cost $12.36 per square yard at a carpet store. what will be the cost to carpet a conference room if the rooms dimensions are 110 ft by 42 ft. (the conference room should seat 380 people using 6' diameter tables each seating 10 people.)
*Monday, March 19, 2012 at 1:54pm*

**Catering(Gourmet Essentials)**

THURSDAY March 8, 2012 SCHOOL SUBJECTS - Art - Business - Computers - English - Foreign Languages - Health - Home Economics - Math - Music - Physical Education - Science - Social Studies GRADE LEVELS - Preschool - Kindergarten - Elementary School - 1st Grade - 2nd Grade - 3rd...
*Thursday, March 8, 2012 at 6:03am*

**Chemistry**

At a given temperature, the elementary reaction A <=> B in the forward direction is first order in A with a rate constant of 2.60 x 10^-2 s^-1. The reverse reaction is first order in B and the rate constant is 8.50 x 10^-2 s^-1. What is the value of the equilibrium ...
*Monday, March 5, 2012 at 11:37pm*

**elementary statistics**

56% of families had no children under the age of 18;17% had no child;18% had two children;6% had three children; and 3% had four or more children. If a family is selected at random, find the probabilty that the family has less than three children(express your answer in percent...
*Saturday, March 3, 2012 at 8:32pm*

**Chemistry(Urgent, please check!!!)**

The equation A + 2 B = C + D describes an elementary reaction, which takes place in a single step. Thus, the rate law must be? My answer is k(A)(B)^2 Is this correct?
*Wednesday, February 29, 2012 at 8:20pm*

**elementary algerba**

add 3y-5 to y+16
*Wednesday, February 29, 2012 at 11:30am*

**Elementary statistics **

Nine apples, four of which are rotten, are in a refrigerator. Three apples are randomly selected without replacement. Let the random variable x represent the number chosen that are rotten. Construct a table describing the probability distribution, then find the mean and ...
*Wednesday, February 29, 2012 at 12:35am*

**Math for the middle school and elementary teacher**

3 red balls, 4 green balls, and 5 yellow balls are in a bag. If 2 balls are drawn randomly (without replacement) find the probability that the balls are different colors. I got 47/66 that the balls are different colors...is that right?
*Tuesday, February 28, 2012 at 9:51pm*

**math for the middle school and elementary teacher**

Which one of the following situations a permutation? a) the number of ways 10 people can be lined up in a line for basketball tickets. b) The number of possible four member bowling teams from a family of six siblings. c) The number of ways to choose a committee of three from ...
*Tuesday, February 28, 2012 at 8:58pm*

**Math for the middle school and elementary teacher**

A prof. teaches 2 calc. classes. The first class has 25 students and their mean on the 1st test was an 82. The 2nd class has 15 students and their mean on the same test was a 74. What is the mean on this test if the prof. combines the score for both classes? Is the answer the ...
*Tuesday, February 28, 2012 at 8:55pm*

**PED 212**

Using the databases listed within the Ashford Online Library you will evaluate a research-based article from a peer reviewed journal. Your critique must be grammatically correct, properly cited, and utilize APA style of writing. Choose one of the following topics that can be ...
*Sunday, February 26, 2012 at 3:49pm*

**Chemistry(Please check answers)**

1) The decomposition of hydrogen peroxide in solution and in the presence of iodide ion was studied in laboratory, and the following mechanism proposed based on the experimental data. H2O2 + I - = H2O + IO - (slow) H2O2 + IO - = H2O + O2 + I - (fast) Which one of the ...
*Sunday, February 26, 2012 at 12:56pm*

**elementary statistics **

The number of calls received by a car towing service averages 21.6 per day (per 24-hour period). Find the probability that in a randomly selected hour the number of calls is fewer than 4. What requirement for the Poisson distribution is probably not valid in the scenario ...
*Saturday, February 25, 2012 at 7:13pm*

**Chemistry(Please check)**

1) The decomposition of hydrogen peroxide in solution and in the presence of iodide ion was studied in laboratory, and the following mechanism proposed based on the experimental data. H2O2 + I - = H2O + IO - (slow) H2O2 + IO - = H2O + O2 + I - (fast) Which one of the ...
*Saturday, February 25, 2012 at 6:34pm*

**Chemistry(Please check)**

1) The decomposition of hydrogen peroxide in solution and in the presence of iodide ion was studied in laboratory, and the following mechanism proposed based on the experimental data. H2O2 + I - = H2O + IO - (slow) H2O2 + IO - = H2O + O2 + I - (fast) Which one of the following...
*Saturday, February 25, 2012 at 3:40pm*

**chemistry**

The equation A + 2 B = C + D describes an elementary reaction, which takes place in a single step. Thus, the rate law must be a. rate = k(A]2 b. rate = k(B]2 c. rate = k(A][B] d. rate = k(A][B]2 e. none of the above represents the rate law for this elementary reaction. help
*Saturday, February 25, 2012 at 10:09am*

**chemistry**

The equation A + 2 B = C + D describes an elementary reaction, which takes place in a single step. Thus, the rate law must be a. rate = k(A]2 b. rate = k(B]2 c. rate = k(A][B] d. rate = k(A][B]2 e. none of the above represents the rate law for this elementary reaction.
*Friday, February 24, 2012 at 8:19pm*

**Chemistry**

A + 2 B = C + D describes an elementary reaction, which takes place in a single step. Thus, the rate law must be a) rate = k (A)^2 b) rate = k (B)^2 c) rate = k (A) (B) d) rate = k (A) (B)^2 I think its D because there are 2 moles of B and 1 mole of A. Do you agree with my ...
*Friday, February 24, 2012 at 2:34am*

**elementary stats**

On a multiple choice test with 11 questions, each question has four possible answers, one of which is correct. For students who guess at all answers, find the mean for the number of correct answers.
*Thursday, February 23, 2012 at 11:18pm*

**elementary stats**

the participants in a television quiz show are picked from a large pool of applicants with approximately equal number of men and women.Among the last 11 participant there have been only 2 women.If participants are picked randomly,what is the probability of getting 2 or fewer ...
*Thursday, February 23, 2012 at 11:04pm*

**law**

Identify and analyze the different crimes for which students are most at risk for in K-12, include some of the differences in victimization found across elementary, middle school, high schools, and college. why you think these crimes occur within the schools. Mention at least ...
*Tuesday, February 21, 2012 at 7:07pm*

**law**

Identify and analyze the different crimes for which students are most at risk for in K-12, include some of the differences in victimization found across elementary, middle school, high schools, and college. Provide reasons why you think these crimes occur within the schools. ...
*Monday, February 20, 2012 at 12:12am*

**Physics**

An electron and a proton are each placed at rest in an electric ﬁeld of 363 N/C. What is the velocity of the electron 76.1 ns after being released? Consider the direction parallel to the ﬁeld to be positive. The elementary charge is 1.60218 × 10 −19 C...
*Friday, February 17, 2012 at 8:15pm*

**physics**

What is the magnitude of an electrostatic force experienced by one elementary charge at a point in an electric field where the field intensity is 3.0 x 10^3 newtons per coulomb? a) 1.0 x 10^3 N b) 1.6 x 10^-19 N c) 3.0 x 10^3 N d) 4.8 x 10^-16 N
*Wednesday, February 15, 2012 at 6:01pm*

**social studies**

Interview a) Interview a teacher in the elementary grades regarding the teacher's social studies instruction. Include at least eight questions. b) Create your own questions such as: i) Do you use a textbook? ii) What do you think of the standards for social studies? iii) ...
*Wednesday, February 15, 2012 at 5:03pm*

**math**

Sunae's group of close friends are going to fifth grade in September. All are going to Belleview Elementary and their homerooms will be rooms 12, 14,or 16. All of her friends but 4 are going to room 12, all but 4 are going to room 14, and all but 4 are going to room 16. ...
*Wednesday, February 15, 2012 at 2:13pm*

**Business**

Employed persons 2006-07 in Australia: -Proffestionals 19.3% -Intermediate clerical and service workers 16.5% -Associated professionals 12.9% -Tradespeople and related work 12.7% -Elementary clerical and service workers 9.3% -Labourers and related workers 8.6% -Managers and ...
*Wednesday, February 8, 2012 at 2:22pm*

**math**

each of the 15 student council members of Blakemore Elementary School is responsable for telling exactly 2 other students about the upcoming school pep assembly. Each of those 2 is then responsable for telling 2 other students. It takes 15 minutes for each round of stundents ...
*Sunday, February 5, 2012 at 1:15am*

**8th grade math**

1. The area shown below will be used for the elementary school playground. What is this area? How much fencing is needed to enclose the playground? Use 3.14 for the value of pi. d= 4 yds for the half circle, w=10 yds. for width of rectangle, and length = 4 yds. and 3 yds for ...
*Tuesday, January 31, 2012 at 8:14pm*

**geometry**

you have been asked to help build a rectangular play area at the new tracy elementary school. you arrive at the site eager to begin. much to your suprise, the only things available to work with are two pieces of rope. Explain how you can use the rope to find the vertices of ...
*Monday, January 16, 2012 at 10:32pm*

**geometry**

you have been asked to help build a rectangular play area at the new tracy elementary school. you arrive at the site eager to begin. much to your suprise, the only things available to work with are two pieces of rope. Explain how you can use the rope to find the vertices of ...
*Monday, January 16, 2012 at 12:38pm*

**Math**

The library at Miller Elementary School has an odd number of tables. Some tables will seat 4 students and some tables taht will seat 6 students. A total of 32 students can sit at the tables with no empty seats. What is the number of tables of each type?
*Tuesday, January 10, 2012 at 2:22pm*

**Science Fair **

S/I/T Exhibition 2012 The exhibition will be held on Sunday, March 25th, 2012 at Pfizer in Pearl River, New York. In case of cancellation due to inclement weather, the snow date is Sunday, April 1st, 2012. Registration opens Sunday, January 1, 2012 and closes on Monday, ...
*Thursday, December 29, 2011 at 5:19pm*

**English(Review Paper)**

Will you also proofread this? Cut By Patricia Mccormick Bryce Romig If I had the opportunity to ask Patricia Mccormick two questions about the main character, I would ask her why the main character Callie feels as though she has to self mutilate as a way to express her ...
*Wednesday, December 7, 2011 at 7:37pm*

**myer park elementary**

What is the analogy for honestly
*Thursday, December 1, 2011 at 7:18am*

**statistics**

Suppose that weights of 5th grade elementary boys are normally distributed with mean µ =90 lbs and variance ó2 = 4 lbs. Find the weight that corresponds to Q3 and interpret this measure of position.
*Monday, November 28, 2011 at 12:36pm*

**ELEMENTARY STATISTICS**

50 MATH PROFESSORS WERE ASKED HOW LONG IT TAKES TO GRADE A STUDENT'S HOMEWORK ASSIGNMENT. THE MEAN GRADING TIME FOR THE SAMPLE WAS 36.2 MINUTES WITH A STANDARD DEVIATION OF 4.8 MINUTES. WHAT IS THE 99% CONFIDENCE INTERVAL FOR THE MEAN GRADING TIME OF ALL MATH PROFESSORS?
*Friday, November 25, 2011 at 3:59pm*

**calculus**

You are given the four points in the plane A = (-3,7), B = (-1,-6), C = (4,6), and D = (6,-1). The graph of the function f(x) consists of the three line segments AB, BC and CD. Find the integral interval -3 to 6 f(x)dx by interpreting the integral in terms of sums and/or ...
*Thursday, November 17, 2011 at 5:51pm*

**English**

Analyze the realtion between Angela nd Gracey. It is correct? The book “Angela”, written by James Moloney, deals with the friendship of Angela and Gracey, which drifts apart by a historical conflict, because the girls come from two completely different social ...
*Sunday, November 13, 2011 at 9:09am*

**pschology**

An article published in the "New York Times" reported the results of a large-scale study on homework for elementary school children. The study indicated that the lowest-achieving students spent more time on homework than children who received higher grades. Using ...
*Saturday, November 5, 2011 at 10:06am*

**EED 364**

1) Observe an elementary mathematics lesson. Write an essay of 1,500-1,750 words that addresses the following issues and summarizes your observations: a) What is the importance of having standards in mathematics? How do standards improve mathematics instruction? Compare and ...
*Friday, October 28, 2011 at 4:59pm*

**MATH**

A town decides to build a playground using one of the existing walls beside an elementary school. What is the maximum area they can enclose using only 100ft of donated fence?
*Friday, October 28, 2011 at 2:23pm*

**Proof read please**

I am entering an essay scholarship and would love if some of you could proof read my essay. Thanks so much! Title: Be a Part of Something Greater “You have to get involved!” From the first day of school, freshman year of high school, those were the words that ...
*Saturday, October 15, 2011 at 11:22am*

**elementary statistics**

at a particular school with 200 male students, 58 play football 40 plays basketball and 8 plays both. what is the probablity that a randomly selected male student plays neither
*Monday, October 10, 2011 at 11:10am*

**Math Elementary**

Carol reads four times as many pages than John. They read 40 pages together. How many more pages did Carol read than John. My answer is Carol read 16 pages more than John. Am I correct.
*Friday, October 7, 2011 at 3:59pm*

**math elementary**

add. write the doubles fact used to solve each one. 0+1=1 6+7 =13 4+3=7 please explain how to use doubles plus 1 and doubles minus 1
*Tuesday, October 4, 2011 at 7:44pm*

**science**

Why can neutrinos travel immense distances through matter whereas other elementary particles cannot?
*Sunday, October 2, 2011 at 6:52pm*

**science**

Why can neutrinos travel immense distances through matter whereas other elementary particles cannot?
*Saturday, October 1, 2011 at 11:30pm*

**cultural diversity **

1. Advocates of social skills building and role modeling would not be inclined to choose a Western style of play because Western play: A. Has a people focus, not an object focus B. Is impossible for many non-mainstream children to master. C. Lacks a rule-based orientation. D. ...
*Thursday, September 29, 2011 at 8:30pm*

**early childhood education**

1)according to the national center for education statistics which of th following is a false statement a)when it comes to grade and homework boys outperform girls in elementary secondary high school college and even graduate school. b)boys are more likely than girls to be ...
*Wednesday, September 28, 2011 at 8:19pm*

**96 Elementary **

what is the subject and predicate in this sentence. 1.I love my new basketball. also I need to know what the compound subject and , or compound predicate is for this sentence. 1. Amy and her coach worked out a plan.
*Wednesday, September 21, 2011 at 5:05pm*

**math**

Polk Elementary School has three classes for each grade level,kindergarten through fifth grade.If there is an average of 27 students per classroom,about how many students attend Polk Elementary School?
*Wednesday, September 14, 2011 at 2:55pm*

**statistics**

In one elementary school, 200 students are tested on the subject of Math and English. The table below shows the mean and standard deviation for each subject. Mean SD Math 67 9.58 English 78 12.45 One student’s Math score was 70 and the same individual’s English score...
*Monday, September 12, 2011 at 10:48pm*

**Chemistry**

At 473 K, for the elementary reaction 2NOCl <=> 2NO + Cl_2 k(1) =0.078 L/mol*s k(-1)=470 L^2/mol^2*s A sample of NOCl is placed in a container and heated to 473 K. When the system comes to equilibrium, [NOCl] is found to be 0.49 mol/L. Find Cl_2 and NO concentrations
*Thursday, September 8, 2011 at 10:16pm*

**physics**

A small droplet of oil with mass of 1.84×10-15 kg is held suspended in a region of uniform electric field directed upward with a magnitude of 6625 N/C. Is the excess charge on the droplet positive or negative? NEGATIVE b.How many excess elementary charges reside on the ...
*Thursday, September 1, 2011 at 10:47pm*

**Math for the middle school and elementary teacher**

what number am I? I am a 3-digit number. I am equal to the sum of the cubes of my digits. I am between 100 and 200. My digits are odd. Explain whether or not other solutions to the riddle are possible. My answer was 153...is that correct? please let me know. could 135 work too?
*Thursday, September 1, 2011 at 4:50pm*

**teachers aide curriculum comtent**

when are children first developmentally ready to begin learning science? (a)kindergarten (my answer) (b)fifth grade (c)junior high (d)high school according to recent science curriculum guidelines what percent of class time should students spend in hands on learning experiences...
*Saturday, August 27, 2011 at 9:39am*

**maths**

Every day, a bakery owner buys either butter(B) or ghee(G).The type of item purchased in consecutive days is to be recorded.List the sample space.If a different type of item is purchased than in the previous day, we say that there is a switch.Let X denote the number of ...
*Saturday, August 13, 2011 at 5:23am*

**elementary and intermediate algebra**

Barry can do a certain job in 9 hours, whereas it takes Samuel 12 hours to do the same job. How long would it take them to do the job working together?
*Friday, July 29, 2011 at 8:20pm*

**english**

can you check to see if i identified the verbs correctly and used the correct tense. 1. For as long as I can remember, education has been a constant factor in my life. ( present progressive) 2. I received my first academic award in elementary school and it changed my whole ...
*Friday, July 22, 2011 at 12:21am*

**english**

I needed to change my thesis statement(last sentence). It was too long. Please review. Imagine being 6’3” in the eighth grade and everyone in the school making comments about your height. There are definitely advantages and disadvantages to being tall. My best friend...
*Monday, July 18, 2011 at 8:44pm*

**english**

This is the first paragraph of my essay, how does it look? Imagine being 6’3” in the eighth grade and everyone in the school making comments about your height. There are definitely advantages and disadvantages to being tall. My best friend’s mother sent me a ...
*Wednesday, July 13, 2011 at 9:26am*

**english**

Here is my first paragraph of my essay: Imagine being 6’3” in the eighth grade and everyone in the school making comments about your size. There are definitely advantages and disadvantages to being tall. My best friend’s mother found a quote written by Bill ...
*Tuesday, July 12, 2011 at 10:56pm*

**Elementary Statistics**

A machine has 7 identical components which function independently. The probability that a component will fail is .2. The machine will stop working if more than three components fail. Find the probability that the machine will be working?
*Wednesday, June 8, 2011 at 7:56pm*

**Elementary Statistics**

A manager needs to fill three positions, computer softer engineer, team-leader, and test engineer. The manager finds 5 applicants that qualify for all three jobs. How many different ways can the manager place those 5 people into the three possible positions?
*Wednesday, June 8, 2011 at 7:44pm*

**Elementary Statistics**

A class consists of 39 woman and 42 men. If a student is randomly selected, what is the probability that the student will be male?
*Wednesday, June 8, 2011 at 7:29pm*

**science **

what have you learned in elementary science with meaning?
*Wednesday, June 8, 2011 at 4:42am*

**elementary statistics**

The distribution of cholesterol levels in teenage boys is approximately normal with u=170 and o=30. Levels above 200 warrent attention. Find the probability that boy has a cholesterol level greater than 225.
*Sunday, May 29, 2011 at 9:21pm*

**math**

Sunae's group of close friends are going to fifth grade in September. All are going to Belleview Elementary and their homerooms will be rooms 12, 14, or 16. All of her friends but 4 are going to room 12, all but 4 are going to room 14, and all but 4 are going to room 16. ...
*Saturday, May 28, 2011 at 12:36pm*

**Elementary Algebra **

I need to translate to an algebraic expression. 3/10 decreased by the product of 7 and the difference of A and 4
*Friday, May 27, 2011 at 5:50pm*

**kettering elementary school**

what do you do when you have 10 or more ones
*Tuesday, May 24, 2011 at 5:53pm*

**elementary math**

Sabino took the ACT in 2003 and received a composite score of 22. If the mean and standard deviation for that year were, respectively, 20.8 and 4.8, what percent of all of the students who took the exams scored better than him?
*Monday, May 16, 2011 at 9:27pm*

**Education **

MS. SUE can you please see if these answers are correct. I would greatly appreciate it. Thank you Which of the following statements best describes the instructional level achieved in an Informal Reading Inventory a. the student is unable to read a text b. the student can read ...
*Monday, May 9, 2011 at 9:41pm*

**Physics**

Three charges are arranged in an equilateral triangle with sides of 4 cm. The coordinates and corresponding charge values are as follows: +4q at (-2,0); +2q at (2,0); -q at (0,3.464). The elementary charge of an electron is given by q = -1.602 x 10^-19 C. Determine the torque ...
*Wednesday, May 4, 2011 at 10:08am*

**physics**

The physics of the DNA molecule. The two strands of the DNA molecule are held together by electrostatic forces. There are four bases which make up the DNA molecule, thymine (T), adenine (A), cytosine (C), and guanine (G). In two of the bases, thymine and adenine, an oxide ion ...
*Thursday, April 28, 2011 at 12:55am*

**elementary statistics**

compute the variable of the random varible X
*Monday, April 25, 2011 at 10:24pm*

**physics - please hellp**

I need help with two questions: 1) An object can only have a charge that is an integral multiple of the charge on the ___. Am I correct with "electron" as the answer? or possibly elementary charge? 2) The difference in potential between any two points in a field is ...
*Tuesday, April 19, 2011 at 7:52pm*

**math**

Mary's group of close friends are going to fifth grade in September. All are going to Belleview Elementary and their homerooms will be room 12, 14, or 16. All of her friends but 4 are going o room 12, all but 4 are going to room 14, and all but 4 are going to room 16. Not ...
*Sunday, April 10, 2011 at 11:31pm*

**elementary**

Plane A left Vancouver for Winnipeg, a distance of 2232 km, travelling at an average speed of 560km/h. At the same time, Plane B left Winnipeg for Vancouver travelling at an average spped of 430km /h. how long after take-off did the planes pass each other?
*Sunday, April 3, 2011 at 10:08pm*

**Discrete Mathematics**

How many elementary operations are used in the following algorithm? Step 1 Set S = a, k = 0 , and t = a Step 2 while k < n (a) Replace t with t+d (b) Replace S with S+t (c) Replace k with k+1 endwhile Step 2 Print S ------------------------ My answer was: 4*n+1 I don't ...
*Wednesday, March 30, 2011 at 10:10pm*

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