Saturday

July 23, 2016
Total # Posts: 2,415

**Physics**

A hollow plastic sphere is held below the surface of a freshwater lake by a cord anchored to the bottom of the lake. The sphere has a volume of 0.600m^3 and the tension in the cord is 840N . What is the mass of the sphere? And Calculate the buoyant force exerted by the water ...
*February 15, 2009*

**Chemistry**

How is polonium-210 used in anti-static products? Why is its presence in commercial products (eg. anti-static hair brushes) a concern?
*February 15, 2009*

**Chemistry**

What is the purpose of a nuclear reactor?
*February 14, 2009*

**french**

Merci Mme! So would I put "Il me faut une douzaine d'oeufs ou des oeufs"? In French would it not make sense if I didn't put the word for "some"?
*February 11, 2009*

**french**

when i'm putting an amount of a food item (comme une douzaine d'oeufs) will the article always be "de" or "d'"? this is the same for the phrase "avoir besoin de", correct?
*February 11, 2009*

**ap world history**

_______do not distort the size of areas but do distort their shapes. Answer: Equal-area projections Orthographic projections Conformal projections Mercator projection
*February 11, 2009*

**arithmetic**

yes, good job
*February 10, 2009*

**arithmetic**

the number is 7, so 7-2=?
*February 10, 2009*

**french**

Merci beaucoup! Y como se dice "Happy Valentine's Day"? (Et Bonne Saint-Valentin sur samedi, Mme!!)
*February 10, 2009*

**french**

what are some common phrases for valentine's day in France? besides "je t'aime" merci
*February 10, 2009*

**Earth Science**

Why is the Colorado river in central nevada not part of a larger river system? Please help!! i am stuck in this quetion. Please help!!!!!!
*February 9, 2009*

**Algebra**

wait! i got 45 for the 1st one
*February 1, 2009*

**Algebra**

yes! they are both correct! good job!
*February 1, 2009*

**substitution method**

for #'s 2-5, set them equal to each other, so for #2: 2x-5=3x-10, then simplify for #6, subtract 2x from the second equation, so it's y=2x+8, then set it equal to y=x-7 for #1, is it supposed to be y=3x?
*February 1, 2009*

**french**

this is confusing. so sometimes when a phrase using "en" is translated into english, the "en" doesn't mean anything? do you know what year of french this is taught in? merci beaucoup!! vous etes super!
*February 1, 2009*

**french**

what is the difference between "en" and "dans"? is "dans" used as a prepositional phrase like "dans mon sac a dos"?
*February 1, 2009*

**chem**

For substance A the emlting point is 16.61 degrees C and the specific heats of the solid and the liquid form are 2.662 and 5.188 JgC respectively. It requires 38600 joules to move 120g of A from 0 degrees C to 32.5 degrees C. This leads to the conclusion that the enthalpy of ...
*February 1, 2009*

**Chemistry**

I followed through all of your steps but I am not getting any of the multiple choice answers. The answers that are listed are 91.8, 100.8, 105, 110.4, 119.4 kJ. When I worked the problem out following your steps I came up with the answer 138.3
*February 1, 2009*

**Chemistry**

Substance A has a normal fusion point of -10 degrees C, an enthalpy of fusion = 150 Jg^-1; specific heats for the solid and the liquid are 3 and 6.2 Jg^-1C^-1 respectively. To change 150 grams of A from a solid at -40 degrees C to a liquid at 70 degrees C will require how many...
*February 1, 2009*

**Chemistry**

Dioxane C4H8O2 has an enthalpy of fusion = 145.8 Jg-1 and its melting point temp is 11 degrees C. How much energy is required to transform 142g of solid dioxane at 11 degrees C into liquid dioxane, also at 11 degrees C?
*February 1, 2009*

**Chemistry**

I also need help with this.
*February 1, 2009*

**english**

How can you tell what kind of infinitive is: -a noun -an adjective -or a verb?
*January 19, 2009*

**SOCIAL**

look here: wiki. answers. com /Q/ What_were_the_effects_on_ Rome_of_the_Punic_wars put everything together to get to the site.
*January 19, 2009*

**Literature 10th grade**

What is a Specialized form of informal english used by Traesmen among themselves? A boorrowed word which has been made to resemble English has been what??? Threee Major North American Dialects are what??
*January 12, 2009*

**physics**

PLEASE!!!!!!I really need help. I dont understand it at all!
*January 4, 2009*

**physics**

a 500 N person stands on a uniform board of weight 100 N and length 8 m. the board is supported at each end. if the support force at the right end is three times that at the left end, how far from the right end is the person? please explain
*January 4, 2009*

**psychology**

I am looking at my book right now and it says that Chromosomes are rod-shaped structures found in cells.
*December 16, 2008*

**Math**

A club of 10 members is to select 3 officers (president, vice-president and secretary). In how many ways can they do this? A club of 10 members is to select a committee of 3 persons. In how many ways can they do this?
*December 12, 2008*

**college-Organic Chemistry**

Why is cyclooctatetraene neither aromatic or anti-aromatic? (I can explain why it isn't aromatic (4n+2 fails), but i can't explain why it isn't anti-aromatic)
*December 11, 2008*

**College Algebra**

5x+2>1
*December 10, 2008*

**ancient egypt**

What substance was used to stuff the nostrils?
*December 10, 2008*

**ap biology**

,jjhfjskarhgjfhbkfdsjkvdonfdkj. About fwvjkdsufdsknj
*December 7, 2008*

**Enlightenment- Mary Wollstonecraft**

Can anyone give me a website detailing the education of Mary Wollstonecraft? It's urgent.
*December 3, 2008*

**Biology**

A dominant gene does not "subdue" or "cover" a recessive gene. Explain using round and wrinkled peas as your example.
*December 3, 2008*

**french**

Wow merci!! Yes can you translate it into Spanish and Japanese(I know this is a HOMEWORK HELP website, but I only know I a little Spanish, not nearly enough to get me anywhere though) because a lady I'm giving the present to teaches Spanish 3, and my best friend who is in ...
*December 2, 2008*

**french**

I have a PC and Windows. And my teacher gave us a list of how to put accent marks, but can you still send me the list to put the accent marks because i don't know where mine is.... (I'm making Christmas presents for all my teachers, and I decided to put the rhyme in ...
*December 2, 2008*

**french**

Bonjour Mme! Pouvez-vous correcter mon paragraghe pour moi? En anglais, it's supposed to say: We looked for a stocking, but we couldn't find a spare, so we ended up stuffing Santa's red underwear! Nous cherchons pour un bas, mais nous ne trouvons pas un autre, donc...
*December 2, 2008*

**chemistry**

I seriously need help with this too. I'm just not understanding it.
*November 29, 2008*

**Chemistry**

I love whoever said "let's just all get high". Amen brother or sister!! <3
*November 29, 2008*

**science**

what must designers consider when planning a project?
*November 27, 2008*

**French for Amanda**

*gasp*! Oh thank you it's so cool!!! Merci beaucoup!!!!!!!!!!!!!!!!!!!
*November 26, 2008*

**french**

Hey I got some of it right!!!! How exciting!!!!! It was written By Edgar Allan Poe. It's called "To Helen". My penpal and I have been talking about poetry, and she sent me this poem by Victor Hugo called "Demain, dès l'aube..." and I ...
*November 25, 2008*

**french**

k, here it goes Mme! Helen, thy beauty is to me Like those Nicean barks of yore, That gently, o'er a perfumed sea, The weary, wayworn wanderer bore To his own native shore. On desperate seas long wont to roam, Thy hyacinth hair, thy classic face, Thy Naiad airs have ...
*November 25, 2008*

**french**

Salut Mme! (or anyone else) Can you translate this poem for me into French? I emailed it to my penpal(Helene) in France and she asked for the French translation. Merci!! Helen, thy beauty is to me Like those Nicean barks of yore, That gently, o'er a perfumed sea, The weary...
*November 25, 2008*

**math**

their windows fall out
*November 22, 2008*

**Biology**

I dont no lolz..... sorry
*November 20, 2008*

**English**

I have to write a interpeting atory paper on Sunday in the Park in my texted book. My three reasons are: Reason 1: she sees everything that her father does and expects her husband to do the same. Reason 2: views on men in society Reason 3: men are the head of the household. I ...
*November 18, 2008*

**Resume**

I recently asked a teacher for a letter of reccomendation for a program that i am applying for. She told me she would but she first she wanted a resume. I have no idea what she wants and i was wondering if anyone had a sample resume. Thanks
*November 18, 2008*

**6th grade science**

How does your body look like after forty days without food?
*November 17, 2008*

**math B**

i need help using the foil method when multipling with i and radicals
*November 17, 2008*

**History**

could you think of one??? for E Thanks for the help!
*November 17, 2008*

**History**

i got the following: I- Is commander in chief of the US military D-Decides whether to approve laws or veto them. i just have a E remaining. Can somebody help please!!!
*November 17, 2008*

**History**

thank you so much.... can you help me with the others too???
*November 17, 2008*

**History**

Write a sentence about the role, job, postition, qualification, checks and balances, and/or amendments having to do with the job of the presidency. i got the following.... can't think of others! P-President must be atleast 35 years old, 14 years resident and native born. R...
*November 17, 2008*

**science**

a cell membrane protects the interior contents present in the cell from spilling out into the external environment. it also protects the cell from harmful substances present in the external environment from entering into the cell!
*November 17, 2008*

**10th grade**

I really need help with this homework.Its like this:f(x)=x-1/2 g(x)=x+2/3
*November 17, 2008*

**arithmetic**

please help me cuze i think that its hard homework.
*November 17, 2008*

**arithmetic**

please,can you help me with this? f(x)=x-1/2 g(x)=x+2/3
*November 17, 2008*

**medical coding and billing**

I am also doing this paper and I am also having a really hard time as well!!
*November 15, 2008*

**french(MME! M'AIDER!)**

comment dit-on: Italian Filipino Indian et European? so she is italian would be: elle est ...? merci!!!!
*November 13, 2008*

**Biology**

is it the nucleus?
*November 11, 2008*

**french**

Mme: Michael(Michel!) is 4 months old. Comment dit-on ".. is four months old"? (that's why he likes to barf everywhere) I am in French 1B, so next year when I'm a freshman, I can go right into French 2. (7th grade=1A, 8th grade=1B =French 1)
*November 11, 2008*

**french**

Michael(Michel!) is 4 months old. Comment dit-on ".. is four months old"? (that's why he likes to barf everywhere) I am in French 1B, so next year when I'm a freshman, I can go right into French 2. (7th grade=1A, 8th grade=1B =French 1)
*November 10, 2008*

**french**

pouvez-vous m'aider avec mon paragraghe? La famille d'Amanda J'ai plus personnes en ma famille. Ma mère s'appelle Emilie. Elle est très sympa. Mon père s'appelle Rodney. Il est fort. J'ai deux frères. Mon frère Aaron ...
*November 10, 2008*

**french**

in french, do they use the inversion form of questions a lot? comme "I miss you" est "Tu me manques" ne pas "Je te manques"?
*November 9, 2008*

**math**

2 times the cube root of radical 3. plus the cube root of radical 4.
*November 8, 2008*

**french**

Q'est-ce que veut dire "n'est-ce pas"?
*November 8, 2008*

**french**

merci! i understand all the other ways to ask a question, but why would you put "n'est-ce pas" at the end? or what does "n'est-ce pas" mean?
*November 8, 2008*

**french**

comment dit-on "donuts"? so "do you like donuts?" would be "tu aimes ....?" merci
*November 8, 2008*

**college- Linear Algebra**

Give example of two non-zero matrices A and B such that A^2=0, B^2=0 but AxB and BxA do not equal zero.
*November 6, 2008*

**Linear Algebra**

Give example of two non-zero matrices A and B such that A^2=0, B^2=0 but AxB and BxA do not equal zero.
*November 6, 2008*

**MATH**

I think it just means writ your equation as y= whatever...In your case it would be y=x+2-1 y=x+1
*November 6, 2008*

**french**

is this correct? Ashlee Simpson est la femme de Pete Wentz. Homer et Marge sont les parents de Maggie. Miley est la fille de Billy Ray. Kevin Jonas est le frere de Nick. would i use any forms of de (du, de la, de l', des) for any of these?
*November 6, 2008*

**french**

Merci Madame! Is it true that you know 19 languages?!
*November 5, 2008*

**french**

comment dit-on "Happy Halloween"?
*November 5, 2008*

**french**

are all of these nouns masculine?: musee cinema stade what are some other irregular nouns? when asked why it's this way by some of my classmates, my french teacher replied,"they just decided it to be that way when they were creating the french language!" is that ...
*November 5, 2008*

**french**

merci cynthia!!
*November 5, 2008*

**french**

merci pour clarifying the 24 hour clock time. what is the difference between "je voudrais" et "je veux"? do you know any good websites that are either translators or like grammar helpers?
*November 5, 2008*

**slope(using intercepts)**

a bamboo plant is growing 1 foot per day. when you first measure it, it is 4 feet tall. a. write an equation to describe the height y, in feet, of the bamboo plant x days after you measure it. would it be: x+y=4? b. what is the y intercept?
*November 5, 2008*

**slope(again)**

sorry, what's the decimal if the slope is 158/110? i don't have a scientific calculator
*November 2, 2008*

**french**

do you only use military time in formal and written french? what do i use for conversational french? like for 6:35 pm, would i say: six heures trente-cinq ou dix-huit heures trente-cinq? merci beaucoup!
*November 2, 2008*

**slope(algebra1)**

can a slope be 158/120? if there are multiple data points on a graph that aren't the same (ex: up 2 over 3), do i use the first and last points to find the slope?
*November 2, 2008*

**slope(algebra 1)**

i know that slope is rise over run, but how do i find the slope of a line with data points with a positive correlation that vary on the line? because there are points that the line doesn't go through. the data points represent number of heartbeats per second. what do i do?
*November 2, 2008*

**Math**

Write the ratio of 4 1/3 to 6 in simplest form. I am not sure how to do this can someone explain how?
*November 2, 2008*

**chemistry**

a)indium-115 has a half life of 4.5 hours. if you start with a 12.0-mg sample of indium-115, how much will remain after 13.5 hours? b)how much of a 3.50-mg smaple of nickel-63 will remain after 368 years? the half-life of nickel-63 is 92 years?
*October 31, 2008*

**psy**

I don't know if we are in the same school or even have the same textbook, but until I came to this site I could not get the gist of them material either. My text book is like reading stereo instructions.
*October 30, 2008*

**college-Linear Algebra**

Let V={f(x)=c0 + c1x + c2x2 : ç01 f(x)dx=1}. In other words, V is the set of all polynomials of degree 2 or less such that their integral from 0-1 is equal to 1. a)Show that the sum of two polynomials in V is not in V b)Show that an affine combination of two ...
*October 29, 2008*

**Linear Algebra**

Suppose A and B are non-zero matrices such that A^2=0 and B^3=0(But B^2 does not =0) find in simplst form: a)(A+B)^2 b)(A+B)^3 c)(A+B)^4 d)(A+B)^5 e)(A+B)^6
*October 29, 2008*

**Math**

Let V={f(x)=c0 + c1x + c2x2 : ç01 f(x)dx=1}. In other words, V is the set of all polynomials of degree 2 or less such that their integral from 0-1 is equal to 1. a)Show that the sum of two polynomials in V is not in V b)Show that an affine combination of two ...
*October 29, 2008*

**Math**

Suppose A and B are non-zero matrices such that A^2=0 and B^3=0(But B^2 does not =0) find in simplst form: a)(A+B)^2 b)(A+B)^3 c)(A+B)^4 d)(A+B)^5 e)(A+B)^6
*October 29, 2008*

**statistics**

A box of tickets averages out to 75 and the SD is 10. One hundred draws are made at random with replacement from this box. a)Find the chance that the average of the draws will be in the range 65 to 85. b)repeat for the range 74 to 76.
*October 27, 2008*

**Math**

When Tammy was 4, the ratio of Tammy's age to fer father's age was 1:7. What will the ratio of their ages be when Tammy's father is 48. If so what would it be in simplest form.
*October 27, 2008*

**grade seven**

A scale on a map is 1cm to 250km. What does this mean?
*October 27, 2008*

**7th grade**

At a certain time of day, a person's shadow is twice her height. What ratio describes this relationship? At this time of day, Gene's shadow measures 320cm. What is his height?
*October 27, 2008*

**math**

The ratio of height of an object in a photograph to the actal height is 1:100. The height of a statue in the photograph is 5cm. How tall is the statue?
*October 27, 2008*

**6th grade**

HOW DO YOU CHANGE AN IMPROPER FRACTION INTO A WHOLE OR MIXED NUMBER
*October 26, 2008*

**Math**

The ratio of seven dimes to three quarters. It wants me to write this ratio in simpliest form. I really need to understand how to do this. I have a few more like this that I have to do. Thank You
*October 25, 2008*

**Mnemonic Device**

Thanks!
*October 22, 2008*

**Mnemonic Device**

Can someone help me make a mnemonic device for the order of my scales? Here is the order... D G C F B flat E flat A flat D flat F sharp B E A
*October 22, 2008*

**6th grade**

well, you could always wear a togo. or something like that.
*October 19, 2008*