Friday

December 9, 2016
**Chemistry**

Even when a mechanism is consistent with the rate law , later experimentation may it to be incorrect or only one of several alternative. As an example, the reaction between hydrogen and iodine has the following rate law: rate=k[H]^3[I]2. The long accepted mechanism proposed a ...

*Saturday, February 28, 2015 by Munavvar*

**Chemistry**

Why is the slowest elementary step "the rate determining step"?

*Monday, February 16, 2015 by Student*

**chemistry**

Based on reaction kinetics, which of the following pairs of reactions and reaction rate equations represent elementary reactions? You may choose more than one reaction. Ti + 2Cl2 = TiCl4 Rate = k[Ti][Cl2] 2SO2 + O2 = 2SO3 Rate = k[O2][SO2]2 Na2S + CuSO4 = CuS + Na2SO4 Rate = k...

*Saturday, February 14, 2015 by danny*

**Math**

Q. Lincoln valley elementary held its annul skating party and 3 fourths of the 400 students came. Of the students who came,1 fifths brought skates from home. How many students rented skates? A. Do I mulpite 400 by 3 fourths than get the answer than mulpite 1 fifths by the ...

*Monday, February 9, 2015 by Destinee*

**Not a subject for course-off topic question**

Hello, I don't know where else to post the question but since this website has many teachers helping students and probably the appropriate place to ask. ----------------------------------------- So today I was just thinking about the past in my life and one thing ...

*Sunday, February 1, 2015 by John Doe*

**elementary differential geometry**

Suppose that all the tangent lines of a regular plane curve pass through some ﬁxed point. Prove that the curve is part of a straight line. Prove the same result if all the normal lines are parallel.

*Saturday, January 31, 2015 by thida*

**english**

School has increased in its difficulty over the years. In the past, kindergarten was carefree; all I had to do was finger paint, crafts, and daily nap-times, which gave me the rest I needed. During my elementary years, math went from adding and subtracting to multiplication ...

*Monday, January 26, 2015 by john234 *

**Math**

Q. As a project,the fifth grade students at Scott Elementary School collected newspaper to recycle. During the first week, they collected 212 pounds of newspapers. For each of the next four weeks,they doubled the previous week's amount of the newspaper collected. What was ...

*Friday, December 5, 2014 by Phoebe*

**5th grade math**

Q. John Brown elementary school Art Club was recycling paper towel tubes for their holiday crafts project. The school enrollment was 629 students. If the art club asked every student to bring 6 empty paper towel tubes to make the project. How many paper tubes will they need? A...

*Thursday, December 4, 2014 by Phoebe*

**Math**

Q.Bettler Elementary School was recycling thier copier paper after the students had completed worksheets. they found that when they filled the barrel with paper it weighed an avearge of 463 pounds. if they collected 16 barrels of paper during the year. what was the approximate...

*Thursday, December 4, 2014 by Phoebe*

**Elementary Alegebra**

jon's age is 120% of Sara's age. If their age difference is 5 years, how old are jon and sara?

*Tuesday, December 2, 2014 by Nae*

**math**

Q. As a project,the fifth grade students at Scott Elementary School collected newspapers to recycle. During the first week,they collected 212 pounds of newspapers. For each of the next four weeks,they doubled the previous week's amount of newspaper collected. What 6th was ...

*Monday, December 1, 2014 by Destinee *

**Foundation of a Healthy Lifestyle**

One reason early childhood education centers have become increasingly important providers of health education is that A. younger, healthier teachers and classroom aides have emerged. B. schools are more sanitary than 70 percent of home environments. C. working parents are ...

*Thursday, November 20, 2014 by Amanda*

**Math Elementary Linear Algebra**

determine whether or not the given set forms a basis for the indicated subspace: #1 {1,1,0), (1,1,1)} for the subspace of R^3 of all (x,y,z) such that y= x+z #2 {[1,2,-1,3), (0,0,0,0)} for the subspace of R^4 of all vectors of the form (a,b, a-b,a+b) and #3 {(2,0,2), (1,1,1)} ...

*Sunday, November 16, 2014 by Anna*

**Elementary Math**

Miriam is four years older than Ricardo. Ten years ago Miriam was 3 times as old as Ricardo was then. How old are they now?

*Sunday, November 16, 2014 by Enis*

**Biochem**

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 Grade 4th Grade 5th Grade 6th Grade 7th Grade 8th Grade High School 9th Grade 10th ...

*Thursday, November 13, 2014 by Pop*

**Elementary Math**

X+(x+)+ (X+2)=3x+ 3 then anotgher student wrote (X-1)+ X + (X+1)=3X which one is correct

*Friday, November 7, 2014 by Edward P*

**Preschool Creative Thinking**

The eclectic theoretical approach that most teachers use means that: a. the major development theories are used on different days of the week on a rotating basis. b. one major developmental theory is used for toddlers, another for preschool, another for kindergarten, and the ...

*Friday, November 7, 2014 by Anonymous*

**Elementary manth**

Jose said that the square root -X=3 has no solutino since the square root is a negative, is this true. I think it does has a solution

*Wednesday, November 5, 2014 by Molly *

**The practice of working with school age children**

_______ offer summer specialty activities that often interest teens. A. Camps B. Child care facilities C. Public elementary schools D. Libraries A.

*Wednesday, October 29, 2014 by Amanda*

**Theories and issues in working with school-age chi**

According to the National Center for Educational Statistics, which of the following is a false statement? A. Boys are more likely than girls to fail or drop out of school. B. When it comes to grades and homework, boys outperform girls in elementary, secondary, high school, ...

*Friday, October 24, 2014 by Amanda*

**Algebra**

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 Grade 4th Grade 5th Grade 6th Grade 7th Grade 8th Grade High School 9th Grade ...

*Thursday, October 9, 2014 by Anonymous*

**coolkid1234567890**

Purple Blue elementary school is 187 miles from washington dc. According to google maps it should take about 3 hours and 5miutes to get there. What is our speed. Please tell me how you did it and the answer. Thank you

*Thursday, October 9, 2014 by alexander*

**Reading**

I would like someone to revise this for me. Thanks! *** **** 10/5/14 Ever since I can remember I have lived in Philadelphia. I have many nice memories from Philadelphia, and I am fortunate enough to have a relatively normal life without having to experience pain of suffering. ...

*Wednesday, October 8, 2014 by Joe :)*

**Language Arts**

Hello everyone! I was just wondering if you could revise this autobiographical essay for me? Thanks for your time! *** **** 10/5/14 Ever since I can remember I have lived in Philadelphia. I have many nice memories from Philadelphia, and I am fortunate enough to have a ...

*Tuesday, October 7, 2014 by Joe :)*

**Physics**

The current density of an ideal p-n junction under illumination can be described by: J(V)=Jph−J0(e^qV/kT−1) where Jph is the photocurrent density, J0 the saturation current density, q the elementary charge, V the voltage, k the Boltzmann's constant, and T the ...

*Friday, October 3, 2014 by qwerty*

**Economics**

State of the good is pure private, pure punlic, or mixed. 1. County zoo 2. UPS Delivery 3. Air conditioning 4. Flood control projects 5. Elementary education 6. Pollution 7. Math tutor I think they are: 1. Mixed 2. Mixed 3. Mixed 4. How is a project a good? 5. Pure private 6. ...

*Thursday, October 2, 2014 by AnaGloria1020*

**Elementary Satistics**

Test the following function to determine whether it is a probability function. If it is not, then make it into a probability function. (Give your answers correct to one decimal place.) R(x) = 0.2, for x = 0, 1, 2, 3, 4 (a) List the distribution of probabilities. R(0) =0 ...

*Sunday, September 21, 2014 by Vickie Huff*

**psychology**

Carrie is a fifth grader at Gorrie Elementary school—a school near an affluent neighborhood in a suburb of a major city. Carrie, who lives with her divorced mother—a high school dropout with a steady job as a minimum wage housekeeper—seems to have limited ...

*Wednesday, September 17, 2014 by tunya*

**elementary**

Magic square 13.6

*Wednesday, September 17, 2014 by aj*

**Psychology**

Carrie is a fifth grader at Gorrie Elementary school—a school near an affluent neighborhood in a suburb of a major city. Carrie, who lives with her divorced mother—a high school dropout with a steady job as a minimum wage housekeeper—seems to have limited ...

*Monday, September 15, 2014 by Shirine *

**English Grade 9 Essay Check/SUggestions For improv**

Hi, so my name is Katherine, and I am in grade 9. Hello Ms.Fowlks. The three classes I am taking are spanish, english, and oklahoma history. Sorry, I have to give a bit of information so my teacher knows I wrote this and it is not plagiarized. :D Anyways, can you give any ...

*Saturday, September 13, 2014 by Katt*

**Curriculum**

When are children who live with overly critical or controlling adults particularly vulnerable? A. During years two and three, when they're exercising increased autonomy B. During elementary school, when involved in real task completion C. During preadolescence, when they ...

*Saturday, September 13, 2014 by Daniela*

**The Curriculum**

When are children who live with overly critical or controlling adults particularly vulnerable? A. During years two and three, when they're exercising increased autonomy B. During elementary school, when involved in real task completion C. During preadolescence, when they ...

*Friday, September 12, 2014 by Daniela*

**The Curriculum**

When are children who live with overly critical or controlling adults particularly vulnerable? A. During years two and three, when they're exercising increased autonomy B. During elementary school, when involved in real task completion C. During preadolescence, when they ...

*Sunday, September 7, 2014 by Daniela*

**Precedence rules for the algebra community**

Precedence of operators In simple algebra, there is a set of precedence (priority) of operations that should be respected in order that everyone evaluates mathematical expressions in the same way. Although these rules have been taught in elementary school or junior high school...

*Tuesday, September 2, 2014 by MathMate*

**POL201 **

A policy area in the middle of these cross-currents is elementary and secondary education – a subject traditionally under local control, with some oversight by the states. However, during the last four decades – especially since 2001 – the national government&#...

*Friday, August 1, 2014 by Sara*

**statistics**

M&M’s The candy company claims that 10% of the M&M’s it produces are green. Suppose the candies are packed at random into small bags containing about 25 M&M’s per bag. A class of elementary students learning about percentages opens several bags, counts the ...

*Monday, July 14, 2014 by Anonymous*

**statistics**

M&M’s The candy company claims that 10% of the M&M’s it produces are green. Suppose the candies are packed at random into small bags containing about 25 M&M’s per bag. A class of elementary students learning about percentages opens several bags, counts the ...

*Sunday, July 13, 2014 by help*

**Lake Arbor Elementary**

Marjorie has 28 feet of trim to use as edging on a rectangular blanket she wants to make. What is the length and width of two blanket sizes she could make

*Tuesday, June 3, 2014 by Kemi*

**PE--Check my answers :)**

Which resource would be the best choice to learn more information about studying martial arts? dance studio *** local bait shop phone book public golf course 2. At the 8th grade dance, Myron asks Janelle if she would like to dance with him seconds before Octavio asks Janelle ...

*Tuesday, May 20, 2014 by Anonymous*

**Statistics**

A study found that 82% of elementary students buy lunch at school at least once a month. How large a sample would be necessary to estimate the true proportion within four percentage points with 95% confidence

*Wednesday, May 14, 2014 by Statistics*

**troy Academy**

based on the results of the studies, what should an elementary school teacher do to ensure that a child with an unusual name develops normal intellectual ability

*Thursday, May 8, 2014 by lee*

**PLEASE HELP!! Org. & Admin. of Sports & Recreation**

The least valid qualification in hiring a coach is: (A) A College superstar B Thorough knowledge of rules and techniques C Ability to teach D Understanding of players E Desirable personality The interests of all athletes participating are best served if: (C) A The present ...

*Saturday, May 3, 2014 by Patti *

**Homework helpline?**

Is there a homework helpline for college level I can call and ask homework questions through the phone? I know there is one that is available for elementary school and middle school, and it would seem a little ludicrous for one to be available for this level, but are there any...

*Monday, April 28, 2014 by Dana*

**Statistics**

Prof. C is studying a population of the elementary school pupils in a school district with data on all its children. Another prof. suggests he calculate a confidence interval to estimate the mean age of the children. Prof C responds that it is not necessary. Explain why Prof. ...

*Wednesday, April 23, 2014 by Kevin*

**ENGish**

1. What are the characteristics of an effective television newscaster? Explain. 2. Why are so many people over the age of twenty-one entering college? Discuss. 3. What could be done to make the public less hesitant to report crime? 4. Do Americans seem unable to relax in ...

*Monday, April 21, 2014 by DYLAN*

**math (Matrix algebra)**

solve the equations by using a) the adjoint matrix b) elementary row operations i) x+y+z=6 2x-y+z=3 x+4y-z=6 ii) 3p-3q+r=1 -3p+5q-2r=-1 p-2q+r=3 iii)-12a+b+17c=-14 2a-b+3c=5 8a+b-13c=-3 thanks sir/madam

*Wednesday, April 16, 2014 by munir*

**math (Matrix)**

solve the equations by using a) the adjoint matrix b) elementary row operations i) x+y+z=6 2x-y+z=3 x+4y-z=6 ii) 3p-3q+r=1 -3p+5q-2r=-1 p-2q+r=3 iii)-12a+b+17c=-14 2a-b+3c=5 8a+b-13c=-3 thanks sir/madam

*Tuesday, April 15, 2014 by MARYSE*

**maths (matrix)**

solve the equations by using a) the adjoint matrix b) elementary row operations i) x+y+z=6 2x-y+z=3 x+4y-z=6 ii) 3p-3q+r=1 -3p+5q-2r=-1 p-2q+r=3 iii)-12a+b+17c=-14 2a-b+3c=5 8a+b-13c=-3 thanks sir/madam

*Tuesday, April 15, 2014 by shiha*

**Elementary Algebra**

"The university of Oklahoma maintains a fleet of vehicles to rent to university departments. To transport equipment, the School of Drama needs to rent either a cargo can or a pickup truck for one day. The cargo van costs $28 for a day, plus $0.22 per mile. The pickup ...

*Tuesday, April 15, 2014 by Taba*

**math (Matrix)**

solve the equations by using a) the adjoint matrix b) elementary row operations i) x+y+z=6 2x-y+z=3 x+4y-z=6 ii) 3p-3q+r=1 -3p+5q-2r=-1 p-2q+r=3 iii)-12a+b+17c=-14 2a-b+3c=5 8a+b-13c=-3 thanks sir/madam

*Tuesday, April 15, 2014 by shahira*

**Calculus Help Please Urgent!!!**

find the limit algebraically. Use L'Hospital's Rule where appropriate. If there is a moare elementary method, consider using it. If L'Hospital's Rule doesn't apply, explain why lim -> 0 (cot(x)-(1/x)) show work please!!!

*Sunday, April 13, 2014 by Selda*

**Elementary Statistics**

There are 100 questions from an SAT test, and they are all multiple choice with possible answers of a,b,c,d,e. For each question, only one answer is correct, find the standard deviation for the numbers of correct answers for those who make random guesses for all 100 questions.

*Friday, April 11, 2014 by Confused*

**Math**

In Mrs. Julie's classroom the ratio of boys to girls is 12 to 8. If the entire elementary school has a population of 400 students, how many would you expect to be girls?

*Sunday, March 30, 2014 by Anonymous*

**MATH**

there are 400 students at smith Elementary school 1/4 of the students are in fourth and fifth grade, 1/10 of the students are in grade 3, 2/8 are in second grade and 2/5 are in first grade . How many kids are in each grade? (4th and 5th have an equal amount)

*Monday, March 24, 2014 by MANISH*

**Physics**

An ice puck of mass m revolves on an icy surface in a circle at speed v at the end of a horizontal string of length L. The tension in the string is T Write the equation for centripetal force, and substitute the values T and L appropriately. Then with a bit of elementary ...

*Thursday, March 20, 2014 by James *

**Algebra **

1) There are two pet stores in zacharys town. There are dogs, cats, and hamsters at the first pet store. The second store has dogs, rabbits, and fish. Write a set that represents all of the different pets stores in the town. 2) of the 125 students in an elementary school, 89 ...

*Saturday, March 15, 2014 by Math Help? Please*

**Algebra **

1) There are two pet stores in zacharys town. There are dogs, cats, and hamsters at the first pet store. The second store has dogs, rabbits, and fish. Write a set that represents all of the different pets stores in the town. 2) of the 125 students in an elementary school, 89 ...

*Friday, March 14, 2014 by Math Help? Please*

**Algebra **

1) If N is the set of natural numbers that are factors of 18, represent this set in roster form. 2) Suppose U={1,2,3,4,5,6,7,8,9,10} is the universal set and A={1,4,5,9,10} What is A? 3) The wrestling team is holding a car wash. The teams goal is to raise at lease 252 and each...

*Friday, March 14, 2014 by Math Help? Please*

**Algebra **

1) There are two pet stores in zacharys town. There are dogs, cats, and hamsters at the first pet store. The second store has dogs, rabbits, and fish. Write a set that represents all of the different pets stores in the town. 2) of the 125 students in an elementary school, 89 ...

*Thursday, March 13, 2014 by Adrian Gunter *

**Math Geometry **

Marisol is painting on a piece of canvas that has an area of 180 square inches. The length of the Painting is 1 1/4 times the width. What are the dimensions of the painting this is for elementary school so make it simple

*Friday, March 7, 2014 by Donald*

**AED **

Read the following scenario: You are a second-grade teacher at Happy Valley Elementary School. You are teaching language arts and social studies. Your classroom of 21 students consists of 7 white students, 5 Latino students, 4 African American students, 3 Native American ...

*Thursday, February 27, 2014 by Sarah*

**Hiram Elementary School**

Maniac Magee

*Tuesday, February 25, 2014 by Blessing Adusei*

**Thesis statement**

The subject of this paper is my experience with teaching elementary school children” Is this a weak or strong thesis statement how can you make it stronger or improve it? what makes it weak?

*Tuesday, February 18, 2014 by Anonymous*

**Thesis Statement**

“The subject of this paper is my experience with teaching elementary school children” Is this a weak or strong thesis statement

*Monday, February 17, 2014 by Anonymous*

**Math**

The 80 students in the 5th grade at north side elementary school voted for their favorite animal after a trip to the zoo.the elephant received 3/5 of the votes.how many votes did the elephant receive.

*Wednesday, February 5, 2014 by Martha*

**Statistics**

WEB CALCULATOR EXERCISE Descriptive Statistics 1 The table below presents data for a sample of people who completed a religious survey. Age Gender Denomination Church Attendance 56 1 7 4 46 2 6 5 49 2 6 5 49 1 1 5 27 2 9 5 51 1 4 2 47 2 2 3 67 1 5 4 49 2 2 6 33 1 12 6 55 2 9 5...

*Tuesday, January 28, 2014 by Joe*

**intro to computers**

what type of device is characteristic of an enterprise environment? a workstation used by a retired person. a workstation used at an engineering firm. a tablet computer used by an elementary school student a notebook used by a college student

*Tuesday, January 21, 2014 by mary*

**Grammatical errors?**

Dear Prospective Host Teacher and Principal: Thank you for allowing me to be a part of your learning community. I am quite jubilant to have my first PPIE experience with you. Education has interested me for a large portion of my life and I often find myself volunteering with ...

*Friday, January 17, 2014 by mathidislikeperson*

**Literature Essay (Writeacher and/or Ms.Sue)**

What are your opinions? Have I written according to the topic I was give? "Write an essay explaining in what ways people today are more fearful than people in past generations. You may use examples from real life, the selection you just read, books, movies, or television ...

*Sunday, January 12, 2014 by Victoria *

**Spanish Foreign Language**

Hi, My current Spanish class is performing an oral presentation on advice for losing weight or being fit. I was wondering if somebody could proofread my Spanish speaking portion and point out the obvious errors? I'm terrible at Spanish so there's probably quite a few ...

*Tuesday, January 7, 2014 by Eschew Obfuscate*

**Elementary Math**

This is going to seem like a simple question but how do i solve this without dividing.. 5th grade math mom Question: Lester's car can go 15.4 miles on 1 gallon of gas. How far can he go on 0.7 gallons? Thanks

*Thursday, January 2, 2014 by Sara *

**Statistics**

Can someone please help with this problem to advise how to set up and in the book Essential of Statistics for the Behavioral Sciences. A researcher is investigating the effectiveness of a new study-skills training program for elementary school children. A sample of n=25 third-...

*Friday, December 20, 2013 by Lyn*

**Math**

"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 surprise, the only things available to work with are two pieces of rope. Explain how you can use the rope to find the ...

*Friday, December 20, 2013 by Amanda*

**English**

What is a PERFECT essay about Sandy Hook Elementary School?

*Sunday, December 15, 2013 by Alexis*

**Math2**

A "quick picture" is an estimate than? 5 x 2.7 ..... 5 x 3= 15 Its been a long time since elementary school and I do not remember "quick picture" The question was How can you use a "quick picture" to find 5 x 2.7? the answer is 13.5.......an ...

*Thursday, December 5, 2013 by Donald*

**Physical Science**

What are the noninvasive benefits of the medical technologies that rely on physics of elementary particles?

*Monday, December 2, 2013 by Harold*

**Physical Science**

What are three medical technologies that rely on the physics of elementary particles?

*Monday, December 2, 2013 by Harold*

**5th grade math**

In the fourth grade class at Baker Elementary, 9 students are left-handed. The fifth grade has 7 left-handed students and the sixth grade has 6. The number of students in the fourth grade is 3 times the number of left-handed students in the class. The sixth grade has 3 more ...

*Sunday, December 1, 2013 by Stephon*

**elementary statistics**

A statistics professor is used to having a variance in his class grades of no more than 100. He feels that his current group of students is different, and so he examines a random sample of midterm grades (listed below). At 0.05 alpha level can it be conculded that the variance...

*Saturday, November 30, 2013 by David*

**elementary statistics**

A statistics professor is used to having a variance in his class grades of no more than 100. He feels that his current group of students is different, and so he examines a random sample of midterm grades (listed below). At 0.05 alpha level can it be conculded that the variance...

*Saturday, November 30, 2013 by David*

**TRIPLE JUNCTION SOLAR CELL - I **

The figure below presents the EQE of a triple junction solar cell with junctions A, B and C under short circuited (V = 0 V) condition. EQE table is: A: EQE = 0.7 wavelength= 300 to 650 nm B: EQE = 0.9 Wavelength= 650 to 850 nm C: EQE = 0.8 Wavelength= 850 to 1250 nm a) What is...

*Saturday, November 23, 2013 by UNO*

**Chemistry**

I am working on a solid chemistry problem, but I do understand what e^ means. Is it the elementary charge? or Faraday constant. Please help.

*Saturday, November 16, 2013 by FHD*

**Statistics**

A random sample of 50 students chosen from an elementary school with 400 students was found to have a mean allowance of $26 per week with a standard deviation of $8. Obtain a 98% confidence interval for the total amount of allowance money given to students in this school per ...

*Wednesday, November 13, 2013 by Cam*

**Language**

I miss placed my word list and my assignment is due tomorrow and I need to access my word list from my teacher Shirley Carr at Adlai Stevenson elementary second grade class can this site help me with that I am not a member and do not know if my teacher or school is either

*Monday, November 11, 2013 by Samarah*

**English**

We heard tommy's loud drumming clearly despite the _______ of the elementary school band practice. A. Esprit B. Concordance C. Animadversion

*Monday, October 28, 2013 by Charles*

**Solar Energy Please Help**

Figure 1 shows a simplication of the AM1.5 solar spectrum at 1000W/m2. The spectrum is divided in three spectral ranges: A for 0nm<λ<620nm B for 620nm<λ<1240nm C for 1240nm<λ<1860nm The photon flux in each spectral range is also shown in the ...

*Saturday, October 26, 2013 by Anonymous*

**Solar Energy Please Help**

The figure below presents the EQE of a triple junction solar cell with junctions A, B and C under short circuited (V = 0 V) condition. a) What is the bandgap (in eV) of the absorber layer of the junction A? b) What is the bandgap (in eV) of the absorber layer of the junction B...

*Saturday, October 26, 2013 by Anonymous*

**Psychology/ Ms Sue**

Please check my answers 1. During puberty, boys testosterone production increases up to 5 times the level in childhood? True 2. Babies of teenagers have a higher risk of birth complications? True 3. Most STIs are fatal if not treated properly? False 4. Analytic thinking and ...

*Sunday, October 20, 2013 by Lisa*

**Solar Energy Help ASAP**

The current density of an ideal p-n junction under illumination can be described by: J(V)=Jph−J0(eqVkT−1) where Jph is the photo-current density, J0 the saturation-current density, q the elementary charge, V the voltage, k the Boltzmann's constant, and T the ...

*Thursday, October 17, 2013 by Anonymous*

**ET3034TUx Solar Energy**

The current density of an ideal p-n junction under illumination can be described by: J(V)=Jph−J0(eqVkT−1) where Jph is the photo-current density, J0 the saturation-current density, q the elementary charge, V the voltage, k the Boltzmann's constant, and T the ...

*Wednesday, October 16, 2013 by Anon*

**help**

Assume that the salaries of elementary school teachers in the U.S. are normally distributed with a mean of $37,000 and standard deviation of $3500. The cutoff salary for teachers in the bottom 12% is

*Sunday, October 13, 2013 by Anonymous*

**English**

I am writing a personal narrative and we have to include significance like what we learned from that memory. My memory is about me getting stung by a bee in elementary school but I can't think of any significance. Help please? Thanks!

*Thursday, September 26, 2013 by Emma*

**elementary functions**

f(x)=x(squared)+x-3. compute the difference quotient: (f(x+h)-f(x))/h

*Tuesday, September 17, 2013 by Megan*

**Math**

There are 648 students in 5th grade at oak elementary school. For the upcming field trip,they need to be split into groups of 25. About how many groups are needed?

*Thursday, September 12, 2013 by Nazariyah*

**statistics**

Researchers conducted a survey of parents of 66 kindergarten children. The parents were asked whether they played games with their children. The parents were divided into two groups: working class and middle class. The researchers wanted to know if there was an association ...

*Friday, August 23, 2013 by dd*

**Math/Statistics**

A statistics teacher believes that the final exam grade for her elementary stats class have a normal distribution with a mean of 82 and a standard deviation on 8. Find the score which separates the top 10% of the scores from the lowest 90% of the scores.

*Sunday, August 11, 2013 by Sean*

**Elementary mechanics**

Given that the mass and radius of jupiter are respectively 190000000kg 7150000km.Calculate the escape velocity from the surface of the planet(a)11.2 km/s(b)33.3km/s(c)59.5km/s(d)110.4km/s

*Monday, July 15, 2013 by jane*

**Elementary mechanics**

what is common to the variation in the range and the hieght of a projectile. I'm thinking of horizontal acceleration pls what do u think

*Monday, July 15, 2013 by jane*