Monday

April 21, 2014

April 21, 2014

Number of results: 38,673

**Psychology**

Optimum physical health usually occurs: a. between the ages of 15 and 21. b. between the ages of 18 and 25. c. between the ages of 25 and 40. d. between the ages of 40 and 55. I think it is either c or d.
*Monday, November 7, 2011 at 4:26am by Kasey*

**psychology**

optimum physical health usually occurs a) between the ages of 15 and 21 b) between the ages 18 and 25 c) between the ages of 25 and 40 d)between the ages of 40 and 55 i want to say it it is a
*Monday, March 7, 2011 at 2:48pm by Anonymous*

**Psychology**

Optimum physical health usually occurs: A. between the ages of 15 and 21. B. between the ages of 18 and 25. C. between the ages of 25 and 40. D. between the ages of 40 and 55. The answer is B
*Friday, April 12, 2013 at 9:40am by Angela*

**algebra**

The difference between the ages of two friends is 2 years. The sum of their ages is 74 years. Find the age of the older friend.
*Monday, December 14, 2009 at 11:30pm by kara*

**Math**

The difference between the ages of two friends is 2 years. The sum of their ages is 74 years. Find the age of the older friend.
*Monday, January 11, 2010 at 10:35pm by Tony*

**math**

The difference between the ages of two friends is 2 years. The sum of their ages is 74 years. Find the age of the older friend.
*Sunday, March 28, 2010 at 8:19pm by Anonymous*

**Math**

The difference between the ages of two friends is 2 years. The sum of their ages is 74 years. Find the age of the older friend. (Points : 1) 38 36 39 37
*Tuesday, June 7, 2011 at 10:46pm by CC*

**business**

Baby boomers are those who were born between 1946 and 1964. These people are between ages 43 and 62, the prime ages for home owners in the suburbs. Please check the ages of the other groups. Urban professionals who prefer apartment living tend to be under 30 and just getting ...
*Wednesday, February 6, 2008 at 8:28pm by Ms. Sue*

**This answer is wrong - MATH**

Constantine's logic is flawed. The difference in ages between the two siblings stays the same, but the ratio of their ages changes Just because at some point you are 3 times as old as your brother, e.g. 15 vs 5 in five years that ratio is no longer 3:1 but rather 2:1 15 + 5 = ...
*Thursday, April 18, 2013 at 3:28pm by Reiny*

**mat**

Write an equation about the difference in ages between these two children. Ann is 13. Lisa is 9 ?
*Monday, January 24, 2011 at 6:40pm by Anonymous*

**algebra 1**

Marcia is 3 times as old as Kate. The difference between their ages is 12 years. Find the age of each.
*Sunday, December 4, 2011 at 1:44pm by kit kat*

**early childhood education**

your budget allows you to purchase only one math software package for your children ages 5-8.Which one of the following packages would probably be best for this age group? (a) ages 4-7 (b) ages 6-9 (c) ages 7-9 (d) ages 6 and up
*Monday, June 20, 2011 at 2:41pm by alana*

**business**

Your budjet allows you to purchase only one math software package for your children ages 5-8. Which one of the following packages would probably be best for this age group? A. Ages 4-7 B. Ages 6-9 C. Ages 7-9 D. Ages 6 and up. Can someone check this answer for me. D.
*Tuesday, January 13, 2009 at 8:17pm by Cynthia*

**Chid Care**

Your budget allows you to purchase only one math software package for your children ages 5-8. Which one of the following packages would be probably be best for this age group? A. Ages 4-7 B.Ages 6-9 C.Ages 7-9 D. Ages 6 and up I pick the ltter B can anyone tell me if I am right.
*Tuesday, February 3, 2009 at 10:14am by Brenna*

**software**

your budget allows you to purchase only one math software package for your children ages 5-8. which one of the following packages would probably be best for this age group? A Ages 4-7 C Ages 7-9 B Ages 6-9 D Ages 6 and up
*Friday, October 16, 2009 at 11:19pm by Rosa*

**Chid Care**

Your bugjet allows you to purchase only one math software packages for your children ages 5-8. Which one of the following packages would probaly be best for this age group? A.ages 4-7 B.ages 6-9 C. ages 7-9 D. ages 6 and up. I chose the letter B and that answer was wrong.
*Thursday, February 5, 2009 at 3:32pm by Cynthia*

**maths**

a teen age boy wrote his own age after his father's from this new four place he subtracted the absolute value of the difference of their ages bto get 4289 the sum of their ages was
*Tuesday, October 5, 2010 at 8:09pm by sushma*

**Physics**

The difference in potential energy between A and B does not depend upon where you define the zero level to be. It is M g H, where H is the vertical distance between the two positions. It is not clear if they are asking for the PE difference between A and B or between A and the...
*Tuesday, January 25, 2011 at 10:15am by drwls*

**Hum205**

Assume you are a Humanities instructor tasked with explaining the social role of the arts in the Middle Ages. What are three relationships between the arts and Early Middle Ages culture you would want your students to know? What are three relationships between the arts and ...
*Wednesday, April 21, 2010 at 9:35pm by patricia*

**HUM 205**

What are three relationships between the arts of Middle Ages and Early Middle Ages culture? What are three relationships between the arts and Late Middle Ages culture?
*Tuesday, September 1, 2009 at 8:49am by Latoya*

**Chemistry**

What's the difference between relative and percentage abundance? What's the difference between realtive and average atomic mass? Is there a difference?
*Monday, August 19, 2013 at 10:09pm by Taylor*

**Math**

Sylvia is four times as old as kim if the difference between their ages is 24 how old is Sylvia
*Tuesday, February 17, 2009 at 3:55pm by Anonymous*

**physics**

In a double-slit experiment, two beams of coherent light traveling different paths arrive on a screen some distance away. What is the path difference between the two waves corresponding to the third bright band out from the central bright band? The path difference between the ...
*Saturday, March 22, 2014 at 12:44pm by Anonymous*

**Science**

Geologists use radioactive dating to... - determine the relative age of rock layers. - tell the difference between molds and casts. - tell where one soil horizon begins and the next one ends. - determine the absolute ages of rocks. I think it is to determine the absolute ages ...
*Tuesday, January 14, 2014 at 6:15pm by Rainshine*

**Solving linear equations**

You need to look at the differences between each number. At some point a pattern will repeat, and you follow the differences to determine the next number in a sequence. Do you have an example you can post? Example: 2,5,6,8,11,12 The difference between 2 & 5 is 3 The difference...
*Friday, February 8, 2013 at 10:43pm by Sam*

**AED**

give an example of what a child would go through physically with each stage. explain what each age group will physically go through From being a newborn (ages 0–1 month); infant (ages 1 month – 1 year); toddler (ages 1–3 years); preschooler (ages 4–6 years); school-aged child...
*Wednesday, June 11, 2008 at 11:28pm by dawn*

**algebra**

brian is 26 years older than his daughter kim. the sum of their ages is twice the differences of their ages. find their ages.
*Saturday, February 4, 2012 at 11:30am by erika*

**Algebra**

Brian is 26 years oldr than his daughter Kim. The sum of their ages is twice the differences of their ages. Find theri ages.
*Thursday, March 29, 2012 at 9:12pm by Anonymous*

**vivekanand H s SCHOOL**

the difference of ages between 2 sisters is 10 years, 15 years ago elder 1 was twice as old as younger age. find the both present age?
*Friday, July 19, 2013 at 10:14am by shankar*

**math**

Which of the following is a subset of set A? A: {children between the ages of 3 and 7} a.children over 7 b.children3 years old c.children of all ages d.children under 3
*Wednesday, August 25, 2010 at 10:56pm by star*

**Math - Number Properties**

The positive difference between the integers u and v is 6. If w is also an integer and the positive difference between v and w is 5, what is the positive difference between u and w?
*Tuesday, September 10, 2013 at 10:26pm by Venus*

**Math**

first of all , write them down in nice column forms Now look at the columns the first column is obvious 2nd column: look at the numerators. 1 3 6 10 15 .. notice that the difference between them increases by 1 each time, so the next few are 1 3 6 10 15 21 28 ... look at the ...
*Saturday, July 30, 2011 at 3:17pm by Reiny*

**algebra**

The present ages in years of four cousins are consecutive multiples of 3. Five years ago the sum of their ages was 46. What is their ages now?
*Thursday, November 17, 2011 at 8:17pm by Zephine*

**Algebra**

Ella is twice Bella's age, and Stella is three times Bella's age. The difference between Stella's and Bella's ages is 8 yrs. How old is each girl?
*Sunday, April 5, 2009 at 1:36pm by Kim*

**algebra**

Yes. The difference of their ages is the key.
*Friday, February 7, 2014 at 9:27am by Albert*

**algebra**

Yes. The difference of their ages is the key.
*Friday, February 7, 2014 at 9:27am by Albert*

**Theory to Practice**

I certainly hope you don't go with B!! Have you ever found "indifferent" children between those ages??? Have you actually watched children of those ages?
*Friday, September 7, 2012 at 11:20pm by Writeacher*

**Chemistry**

•Find the difference in electronegativity between H and F. •Find the difference in elctronegativity between H and I. •Compare the two differerences. The larger difference indicates the larger polarity.
*Monday, January 4, 2010 at 8:30pm by GK*

**English**

1. Most boys grow a lot between the age of 9 and 14. 2. Most boys grow a lot between the ages of 9 and 14. (Which one is correct? Do we have to use 'ages' or 'age' in the sentence?)
*Wednesday, May 26, 2010 at 2:45am by rfvv*

**Algebra 2**

"My husband's age," remarked a lady the other day, "is represented by the figures of my own age reversed. He is my senior, and the difference between our ages is one-eleventh of their sum." 10x + y = husband's age 10y + x = wife's age (10x+y) - (10y+x) = ((10x+y) + (10y+x)) ...
*Tuesday, October 25, 2011 at 7:10pm by Anonymous*

**Math**

Jack is married to Jill. Their son, Junior, asked each of them to reveal their ages. Junior’s parents decided to tell him, but in the form of a puzzle. Jack told Junior, “If you reverse the digits in my age, you get your mother’s age. Jill told her son, “The sum of my age and ...
*Tuesday, May 29, 2012 at 3:52pm by Erica*

**Math-Triangles**

I think it is 36. The difference between side A is 4 and the differences between side B is 6, so the difference between side c would be 8, I just don't know how to show the calculations.
*Saturday, October 17, 2009 at 1:11pm by Anonymous*

**stats**

You would use a one-tailed test for the difference between means. The difference between the means needs to be divided by the standard error (SE) of the difference between means. SE of the difference between means equals the square root of the sum of the squared SEs of the two...
*Tuesday, August 12, 2008 at 9:41pm by PsyDAG*

**Geometry**

the midpoint is halfway between the two values. The difference between -9 and 6 is 15. (That is, 6 - (-9)) Half that difference is 15/2. So, add half the difference to the smaller value: -9 + 15/2 = -3/2 or, subtract half the difference from the larger value: 6 - 15/2 = -3/2 ...
*Monday, September 17, 2012 at 3:08pm by Steve*

**Science**

Each step on the richter scale is a factor of ten. So an earthquake of magnitude 3 has ten times the energy of one of magnitude 2. Or if you like a difference of 1 between the magnitudes is a factor of 10 increase, a difference of 2 is a factor of a hundred increase, a ...
*Monday, March 16, 2009 at 10:08pm by Dr Russ*

**statistics**

From past experience it is felt that the random variable, X, the age of a mother at the birth of her first child, is normally distributed with a mean of 21.3 and a variance of 16. Find the probability that a randomly selected mother: (a) has her first child before age 16 (b) ...
*Wednesday, January 26, 2011 at 1:17am by Tian*

**Pre-algerbra**

Ok, It is riddle. Jack is married to Jill. There son wants to know their age. Jack says,"if you reverse the digits in my age, you get your mother's. Jill said" The sum of my age is your dad's age equal to 11 times the difference in oour ages. Remember that I am older than your...
*Thursday, September 4, 2008 at 10:12pm by Cole*

**US History**

What is the difference between Nixon's policies of engagement and foreign policy strategies. I already have almost the entire question answered, I am just confused on what the difference between these two are.
*Thursday, July 31, 2008 at 11:11am by Sarah*

**Algebra please help!**

Well, first of all let's find a point halfway between P and Q. That point will have an x value halfway between 2 and -7 That is (2-7)/2 = -5/2 = -2.5 The vy value of that halfway point will be halfway between 4 and -2 That is (4-2)/2 = 2/2 = 1 so our halfway point is ( -2.5 , ...
*Wednesday, December 10, 2008 at 4:03pm by Anonymous*

**i kno...it should b easy**

Draw a number line. On the left write 1/2. On the right write 2/3. What is the difference between 2/3 and 1/2. I have 1/6 but you need to confirm that. Then divide that 1/6. You want the number that is 3 times farther from 1/2 than 2/3 so 3x = 1/6 = 1/18, now add 1/18 to 1/2. ...
*Sunday, November 29, 2009 at 8:01pm by DrBob222*

**English**

1. Excuse me. Are you Bora? 1-1. Tell me. Are you Bora? (Are both OK?) 2. Oh, I'd like to introduce my friend. 2-1. Oh, I'd love to introduce my friend. (Are both OK? What is the difference between them?) 3. Nice to meet you. 3-1. Nice to see you. (What is the difference ...
*Wednesday, March 4, 2009 at 5:14am by John*

**algebra**

What is the difference between y=sqrtx +3 and y=2sqrtx +3 (I put spaces between x and the + to show that only the x is a squareroot) And what is the difference between y=2sqrtx +3 and y=sqrt2x+3 When I mean the difference, I mean how they would look differently when graphed. ...
*Monday, March 26, 2007 at 5:50pm by Lydia*

**Statistics**

testing for the differences between means of 2 independent populations where the variances in each population r unknown, u must first perform the F-test for the difference between 2 variances. Which of the following is correct? a)If the null hypothesis of the F-test is ...
*Tuesday, August 12, 2008 at 3:00pm by Student*

**Statistics**

Age at onset of dementia was determined for a sample of adults between the ages of 60 and 75. For 15 subjects, the results were SumX=1008, and Sum(X-M)^2=140.4. Use this information to answer the following: a. What is the mean and SD for this data? b. Based on the data you ...
*Monday, February 10, 2014 at 11:27am by daniel*

**math**

In her art class, Ms. Walter has 12 students whose ages are listed below: 19, 20, 20, 20, 21, 22, 24, 24, 25, 25, 56, 60 She calculated the mean and the median of their ages. What is the relationship between these two values?
*Thursday, November 10, 2011 at 3:12pm by Sally*

**Statistics**

Age at onset of dementia was determined for a sample pf adults between the ages of 60 and 75. For 15 subjects, the results were SumX=1008, and Sum(X-M)^2=140.4. Use this information to answer the following: a. What is the mean and SD for this data? b. Based on the data you ...
*Monday, February 10, 2014 at 9:03am by daniel*

**SCIENCE**

What is the difference between (aq) and (l) ...what do they mean. I know Aq is a aueous solution while (l) is a liguid with only one element...but what is the difference between them? thanks duplicate post.
*Monday, December 11, 2006 at 9:18am by Krissy*

**not sure**

my mom says it means pretty much the difference between logic and what yu know, or the difference between listening to your head and listening to your heart... do you agree with this?
*Sunday, January 15, 2012 at 8:56pm by kathy*

**Math**

x decreased by 1 x-1 half of x 2/x twice x increased by 3 1 less than 3 times x 3x-1 the difference between 3 and x 3-x the difference between 2 and x 2-x the product of 4 and x 4x the sum of 6 and twice x 2x+6
*Monday, November 18, 2013 at 6:01pm by Jerald*

**mathematics**

the difference between two positive numvers is 2 and the difference between their squares is 40. taking x to be the smaller of the two numbers, form an equation in x and solve it. thank you in advance!
*Wednesday, August 6, 2008 at 8:52am by jessica*

**geometry**

Not too sure if I understand the question correctly"the distance between them" ? who is the "them", the circles ? e.g. radius of first circle = 8 radius of second circle = 3 difference between them is 5 So the distance between them is the difference of the two radii.
*Sunday, October 11, 2009 at 1:54pm by Reiny*

**Math**

The same as the difference between likely and unlikely! What's the difference between theory and practice? In theory, there is no difference, but in practice, there is!
*Tuesday, November 29, 2011 at 6:22pm by Steve*

**Statistics**

The notion of statistical significance is frequently used in business to distinguish between true and spurious between-group differences (such as a difference between the response rates to two different promotions). Hence, when the difference between the baseline (no ...
*Saturday, August 20, 2011 at 5:07pm by George*

**Difference between position and distance**

What is the difference between position and displacement? Would the only difference be that position is a scalar and displacement is a vector?
*Saturday, November 13, 2010 at 3:55pm by Anonymous*

**math**

Between a bar graph and a line graph which one is more appropriate for displaying the number of individuals of dffering ages at a picnic. We are provided the ages brackets and frequency. I say it is a bar graph since line graphs are better for over time instead of a single ...
*Thursday, November 18, 2010 at 2:50pm by m*

**MATHS**

In 2006, the digits in Perry's age were the same as the digits in Laura's age, but in reverse order. In 2005, Perry was twice Laura's age. What is the difference between Perry's and Laura's ages?
*Monday, October 21, 2013 at 9:15am by SARAH*

**Geography!!!!!!!!!!!!!!!!!!!!!!!!**

1) What is the difference between folding and faulting? 2) What is the difference between intrusive vulcanicity and extrusive vulcanicity?
*Sunday, October 21, 2012 at 12:14am by Nicole*

**ethics and values**

1.What is egoism? What is psychological egoism? What is the difference between the two? 2.What is the difference between utilitarianism and egoism? Need some ideas
*Friday, July 15, 2011 at 1:57pm by Steph*

**statistics**

The alternative hypothesis for an independent-measures t test states ______. a. There is no mean difference between the two populations being compared. b. There is no mean difference between the two samples being compared. c. There is a non-zero mean difference between the two...
*Sunday, November 11, 2012 at 9:12pm by Robbie*

**statistics**

To find the significance of the difference between two means, we need to divide this difference by the standard error of the difference between means. To find the standard error of the difference between means, we need to know the standard deviation (SD) of both groups. To get...
*Wednesday, June 11, 2008 at 1:18am by PsyDAG*

**Math (need more help Reiny)**

I tried to explain it by using the arrangement of billiard balls, but I guess you don't play pool. let me try to "draw" the billiard balls . . .o . . o o . .o o o . o o o o o o o o o o sum of one row = 1 sum of two rows = 3 sum of three rows = 6 sum of four rows = 10 sum of ...
*Thursday, June 25, 2009 at 2:19pm by Reiny*

**Chemistry**

For binary compounds, a difference in electronegativity leads to a polar compound. For example, CsF. Cs as EN of about 0.8 or so and F has EN of about 4.0. The difference is >3.0 and this is an ionic (polar) compound. For molecules, two criteria must be satisfied. a. There ...
*Thursday, April 15, 2010 at 5:23pm by DrBob222*

**physics**

A water tower sits on top of a hill and supplies water to citizens below. The difference in pressure between the water tower and the Dailey's house is 1.1x10^5 Pa, while the difference in pressure between the tower and the Stearns' house is 3.2x10^5 Pa. a)which house sits at a...
*Tuesday, July 27, 2010 at 5:35pm by Riley*

**math**

When converting Farrenheit to Celcius, why is there only 32degrees difference between the freezing points of 32 and 0, but 110 degrees difference between the boiling points of 210 and 75 degrees?
*Wednesday, April 1, 2009 at 1:30pm by michelle*

**geography**

1)give two properties of gold which makes it an economically valuable mineral 2)what is the difference between gold and an ordinary rock? 3)what is difference between gold mine and gold prospect?
*Wednesday, July 28, 2010 at 6:39am by kila*

**Reiny (this was the one you helped me with)**

I tried to explain it by using the arrangement of billiard balls, but I guess you don't play pool. let me try to "draw" the billiard balls . . .o . . o o . .o o o . o o o o o o o o o o sum of one row = 1 sum of two rows = 3 sum of three rows = 6 sum of four rows = 10 sum of ...
*Saturday, June 27, 2009 at 11:41am by Keira*

**Algebra**

The four oldest people in Golden City have lived a total of 384 years put together. The difference in ages for the youngest and the second oldest is 14. The second youngest is 3 years older than the youngest. The oldest is 20 years older than the average of the second oldest ...
*Thursday, June 6, 2013 at 1:26pm by Shepp*

**health...help plzz**

Explain the difference between a Doctor of Dental Surgery and Doctor of Medical Dentistry. Explain the difference between an allopathic and osteopathic physician.
*Sunday, January 30, 2011 at 4:47pm by brian*

**Math**

The difference between the first and second number is zero. Find the numbers such that the difference between thrice the first and twice the second is 18.
*Sunday, January 12, 2014 at 11:42pm by Ashley Kate*

**English - Native speakers**

Hello once again! Can you tell me the difference between Don't underestimate me! and Don't underrate me! Which one is more used in English and what's the difference between those two words? Is there any other similar word? My second question. Can we say both I'm Croatian and I...
*Tuesday, March 8, 2011 at 5:28am by Mark*

**physics**

The lower house gets the higher pressure. difference in pressure between 2 houses = (3.2-1.1)*10^5 Pascals or Newtons/meter^2 difference in pressure = rho g * difference in height
*Tuesday, July 27, 2010 at 5:35pm by Damon*

**French**

What is the difference between premier and premiere? Is it depend on masculine and feminine of the noun? How about deuxieme, is there a difference between masculine and feminine?
*Saturday, October 20, 2007 at 3:55pm by Miche*

**math**

Cynthia is three years old than Dina. The sum of their ages is 31. Find their ages.
*Wednesday, July 28, 2010 at 9:06pm by joy*

**algebra**

A man and a woman's ages total 98. He is twice as old as she was when he was her age now. What are their ages?
*Friday, February 7, 2014 at 9:27am by Albert*

**History**

Is dark ages same as early middle ages???
*Saturday, November 9, 2013 at 5:37am by jason*

**Algebra**

1. The sum of the ages of James and Remy 5 years ago was 44. Twenty-two years from now, James' age will be 52 less than twice3 Remy's age then. Find their present ages. 2. Two numbers have a sum of 41. Their difference is 5. What are the numbers? 3. The perimeter of a football...
*Saturday, January 4, 2014 at 3:23am by McKenna Louise*

**History**

Sorry. I just need some help coming up with a good thesis for this.. I know in the High Middle Ages agriculture and art was popular at that era. This era represented medieval culture and politics and there was a strong leadership by the popes. Late Middle Ages black death ...
*Saturday, January 22, 2011 at 2:48pm by Anonymous*

**math**

the sum of the ages is 48, Bailey's mom is 15 more than twice his age. what is the ages of the two?
*Thursday, May 5, 2011 at 1:34am by heath*

**math**

The ages of two children are 11 and 8years.In how many years time wil the product of their ages be 208
*Wednesday, December 7, 2011 at 10:13pm by David*

**Physics**

1.) a charge of -2x10^-9 C in an electric field between two metal plates 4cm apart is acted upon by a force of 10^-4 N. a.) what is the strength of the field? b.) what is the potential difference between the plates? my question: how will going to solve this kind of problem? ...
*Sunday, February 8, 2009 at 6:50am by konan*

**Math**

there is a difference of x=+4 between 5, 9 There is a multiply difference of 14/20=.7 between the two. f(13)=14*.7 f(17)=14*.7*.7 f(21)=14(.7*.7*.7)
*Sunday, February 19, 2012 at 5:55pm by bobpursley*

**physics **

Which of the following is true for the transition of electrons from a higher energy to a lower energy state? Choose one answer. a. The greater the energy difference between the levels, the more is the wavelength of the photons emitted. b. The greater the energy difference ...
*Thursday, April 28, 2011 at 7:59pm by ashley --*

**physics **

Which of the following is true for the transition of electrons from a higher energy to a lower energy state? Choose one answer. a. The greater the energy difference between the levels, the more is the wavelength of the photons emitted. b. The greater the energy difference ...
*Sunday, May 1, 2011 at 3:30pm by ashley --- HELP PLEASEE!!!*

**Math**

Three students came to the bake sale to shop. The sum of their ages is 33. The product of their ages is 1,320. How old are they?
*Tuesday, December 2, 2008 at 8:25pm by Sara*

**math**

The sum of the ages of the three Romano brothers is 63. If their ages can be represented as consecutive integers, what is he age of the middel brother?
*Friday, April 10, 2009 at 8:17pm by Anonymous*

**Math**

Three students came to the bake sale to shop. The sum of their ages is 33. The product of their ages is 1320. How old are they?
*Monday, November 7, 2011 at 2:13am by Wendy*

**math**

Three students came to the bake sale to shop. The sum of their ages is 33. The product of their ages is 1,320. How old are they?
*Tuesday, October 2, 2012 at 9:46pm by Michael Florent*

**eth-revision**

Your answer is mostly right. But I don't know why you started the second sentence with "Therefore." If you take it out, your answer will make more sense. I think you need to understand the word, "differentiates." It means to know the difference between. Your question is asking...
*Monday, June 16, 2008 at 9:49pm by Ms. Sue*

**physics**

The energy difference between states A and B is twice the energy difference between states B and C (C > B > A). In a transition (quantum jump) from C to B, an electron emits a photon of wavelength 600 nm.
*Tuesday, May 18, 2010 at 8:50pm by Rachel *

**English/History**

The Early and Late Middle Ages both went through bad times with all the wars and dieseases. The High Middle Ages were growing agriculture, trading, and their cities were growing. It was the best era out of the Middle Ages and altered society in such good ways. Can you tell me ...
*Tuesday, January 25, 2011 at 12:29am by Anonymous*

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