Friday

May 27, 2016
Total # Posts: 623

**math**

an object accelerates only if the forces acting on it in one drection are greater than the forces in the opposite direction, all of the following objects will accelerate except
*January 17, 2009*

**4th Grade Eng**

Yesterday some people were practicing musical numbers. were practicing--is that the correct helping verb for the sentence
*January 9, 2009*

**english**

were
*January 8, 2009*

**4th grade english**

were
*January 8, 2009*

**4th grade english**

Yesterday some people (was, were) practicing musical numbers.
*January 8, 2009*

**algebra**

A train left Podunk and traveled north at 75km/h. Two hours later, another train left Podunk and traveled in the same direction at 100 km/h. How many hours had the first train travelee when the second overtook it?
*January 8, 2009*

**9th grade**

It's not a buoyant girl ant
*January 7, 2009*

**social studies**

in what city was the declaration of independece approved?
*January 3, 2009*

**I know the answer**

ALINEOFCHORUSGIRLS
*December 3, 2008*

**4th grade English**

What would be the possessive form of friends in the sentence--The homework of my friends.
*November 23, 2008*

**chemistry**

I need help with this question. What should be the cell potential if the [Cu2+] is 1.0 x 10-5 mol/L? please help
*November 11, 2008*

**chemistry/please double check**

Hi, I just need to know if I finally got this exercise right. Calculate the amount of heat in kilojoules released when 50 grams of steam at 125 Celsius are converted to 50 grams of ice at -125 Celsius. so, qw= 50*4.184J/g C (125 C-o)= 26.15 x 10^3 qi= 50*2.09*(-125)=-13.065 KJ...
*October 28, 2008*

**Help with math**

Hi, adding on to Manny's response, a simplified answer would be 19/20, by diving both the numerator (95) and denominator (100) by 5. Thanks. Hope I helped.
*October 28, 2008*

**chemistry**

sorry it was a typo and yes they didn't ask for the freezing point thanks so much
*October 28, 2008*

**chemistry**

so the molecular formula will be? c= 3.30/3.29=1, H=7.75/3.29=2, O=3.29/3.29=1 2(C3H7O3)= C6H17O6 Delta T= Kf * m T= -1.86 C/m * 0.33m/g T= o.613 C am i correct?
*October 28, 2008*

**chemistry**

I need to know if I have th right molecular formula for Sorbito 39.56g C 7.75g H 52.7g O Empirical Formula is CH2O 30.026 amu how I how calculate the molecular mass and how I figure out the melecular formula? please help
*October 28, 2008*

**chemistry**

thanks
*October 27, 2008*

**chemistry**

for K3PO4 is it potassium phophate or tripotassium phosphate? or both? confuse which one we use more often?
*October 27, 2008*

**Spanish**

Gamberras? what does it mean? never heard that word before? help
*October 27, 2008*

**Spanish**

1. por sus habilidades de actuacion(put a period on top of o for actuacion. 2. y usualmente adquiere roles de muchachas de gran temperamento in peliculas de acion. 3. Ella da una actuation expectacular...don't traslate literally it has to have the same meaning as it does ...
*October 27, 2008*

**chemistry**

what are the properties affected by intermolecular forces? please help
*October 27, 2008*

**Chemistry/please check**

Calculate the amount of heat in kilojoules reased when 50 of steam at 125 C are converted to 50 grams of ice at -125 C. AHsteam = m * Cp steam * At q1= 50g * 4.184 J/g C * (125-100)C= 5.23 x 10^J q2= m * AH 50g * 5230 J/g = 2.61 x 10^5 J q3= 50g *4.184 J/g C * (100-0)C= 2.10 ...
*October 27, 2008*

**chemistry**

is this the right anser? for this problem please let me know thanks calculate the amount of heat in kilojoules released when 50 grams of steam at 125 C are converted to 50 grams of ice at -125 C so 50 grams of H2O Ti= 124 C Tf= -125 C q=? J=? q=m *Cp * At J= 50g * 4.184J/g C...
*October 27, 2008*

**chemistry**

oh i see m ok thanks
*October 27, 2008*

**chemistry**

if so then the solution will be Delta T= Kf * M T= 7.0 C/m * O.474mol/g T=3.32 C The freezing point of the solution will be 5.7 C - 3.32 C = 2.38 C please let me know if this is correct? please
*October 27, 2008*

**chemistry**

from the texbook K(f)= 5.12 C/m but from the exercise is 7.0 C/m which one should i use to solve fro the freezing point? please help
*October 27, 2008*

**chemistry**

thansk
*October 27, 2008*

**chemistry**

i need to know if I am in the right tract please let me know...I am calulating the molality of the following exercise so I could be able to apply the formula T=Kf * molality calculate the freezing point of a solution containin 12.2 grams of benzoic acid, dissolved in 250 grams...
*October 27, 2008*

**Chemistry**

calculate the freezing point of a solution containing 12.2 grams of benzoic acid, dissolved in 250 grams of nitrobenzene. the freezing point of nitrobenzene is 5.7 celsius and its freezing point depression constant is 7.0 celsius/m. please help
*October 27, 2008*

**Chemistry**

thanks I think i got it now
*October 27, 2008*

**Chemistry**

Calculate the amount of heat in kilojoules released when 50 grams of steam at 125 C are convert to 50 grams of ice at 125 C please help
*October 27, 2008*

**Chemestry**

where you got the 7.7 from? and how you calculate the molality for it. I am stuck please help
*October 26, 2008*

**History**

I just have one more question on this matter; does the Congress's power to declare treason to a person/ establish inferior courts in states pertain to the federal territories as well?
*October 19, 2008*

**History**

Thank you for your help.
*October 19, 2008*

**History**

What authority does Congress have over other states according to Article III of the Constitution? Over federal territories?
*October 19, 2008*

**Math**

Thanks drwls for the good explanation =)
*October 17, 2008*

**Math**

Hi drwls, Just wondering, does the word "under" in the question influence the question at all? Thanks for your reply! =)
*October 17, 2008*

**Math**

Hi guys, In the question "It is given that P (0, 3), Q(7, 5), R(9, -2) and S are vertices of a square. A circle A passes through the points P, Q, R and S. Find the equation of this circle. Hence or otherwise find the equation of circle B which is the image of A under the ...
*October 17, 2008*

**Writing prompt**

Hi Jherica Holland, You have posted several questions regarding the 18th century. What I suggest is for you to search "the 1800's" on Google. There are some personal recounts which you could use as reference material. Hope I helped. Thanks! :)
*October 16, 2008*

**Chemistry**

Hi Bo, we have several indicators, including litmus, universal indicator, bromothymol blue, methyl orange, and screened methyl orange. There are many, and the list can go on forever, but these are most commonly used. The best, in my case, would be universal indicator or litmus...
*October 16, 2008*

**writeing promot on the 1800's**

O_o didn't consider that haha :)
*October 16, 2008*

**writeing promot on the 1800's**

Hi brittany lasseigne, what do you need help with? There are many points of comparison you could consider jotting down. You could try to talk to grown ups who have lived through the 1800's as children. Here's some starting material for you (Please do not copy, this is ...
*October 16, 2008*

**Math Calculus**

Thanks ^^
*October 16, 2008*

**Math Calculus**

Hi, I don't have any question specifically but I'm very confused on this. In integration to find area under/above a curve, when do you integrate: 1) with respect to y 2) with respect to x 3) using x coordinates 4) using y coordinates Thanks for your help! :)
*October 16, 2008*

**chemistry**

Hi Anonymous, Truthfully speaking I don't know much about ozone cracking. However, seeing that no one has answered your query for almost two hours, I will try to help. The definition of ozone cracking as stated in Britannica Encyclopedia is as such: "Atmospheric ozone...
*October 16, 2008*

**chemistry**

Hi Lili, I'll try this one. You could add silver carbonate to the solution. A white precipitate is produced, while a colorless, odorless, gas is evolved which produces a white precipitate in limewater (calcium hydroxide). Hope I helped! :)
*October 16, 2008*

**Wellness, puberty**

might not*, spelling error.
*October 15, 2008*

**Wellness, puberty**

Hi Max, well, in short, we need the knowledge for adulthood after marrying etc. Also, this knowledge is classified as general knowledge, some might need it, some might now :) Though most do, like how many people are reliant on common knowledge
*October 15, 2008*

**math-3rd grade**

together with 1100 + 1600, 1100 - 500, and I'm not sure if you also want to include those with negative answers..
*October 15, 2008*

**math-3rd grade**

Oops, missed out some equations such as 500 + 1600, sorry about that
*October 15, 2008*

**math-3rd grade**

Hi elaine, Yup, that is all correct. Well done!
*October 15, 2008*

**Math**

Hi Tina, A palindromic number is a symmetrical form, in this case, xyx, where x has to be 2 as the number is between 200 and 300. We'll ignore the y to move on to finding the x. Create two numbers where the difference of the hundreds place = 2. For example, 9y9 and 7y7. Or...
*October 15, 2008*

**calculus**

Hi Meghan, If you differentiate a constant (i.e. any number, fraction or yeah...a constant), you always get 0. Hope I helped :)
*October 14, 2008*

**Math**

You're welcome ^^ :)
*October 14, 2008*

**Math**

Okay, we'll do it by completing the square. :) From 3x^2 + 4x = 224, x^2 + 4/3 x = 224/3 x^2 + 4/3x + 4/9 = 224/3 + 4/9 (x+2/3)^2 = 75/1/9 x + 2/3 = square root of 75/1/9 x + 2/3 = 8/2/3 or -8/2/3 x = 8 or -9/1/3( Not applicable as positive integer cannot be a negative ...
*October 14, 2008*

**Math**

Your formula is correct. Assuming you add up the 3x and x to form 4x, you have to use the general solution of a quadratic equation. Do you know how to use it? =) By the way, x should be 8 if you use it right.
*October 14, 2008*

**Mathematics**

Thanks for the help =) Clear and detailed explanation.
*October 14, 2008*

**Mathematics**

Hi there, Can someone help me with the question: "Prove that the value of 7sinx +3cos2x cannot be greater than 5/1/24 for all values of x between 0 degrees and 360 degrees" Thanks lots. =) I've already simplified 7sinx + 3cos2x into (2sinx-3)(3sinx+1).
*October 14, 2008*

**5th grade math**

i am a number less than 10.my hundreds digit is 3 more than my thousands digit,my tenths is 2 less than my hundreds and my ones is the sum of my tenths and hundreds digits.what number can i?
*October 10, 2008*

**rounding decimals**

whay is the difference between rounding decimals to the greatest to the nearest whole
*September 7, 2008*

**ecology**

WHICH WEATHER SITUATION WILL BE THE LEAST COMFORTABLE FOR A LONG DISTANCE RUNNER? A.20* CELCIUS (68f) WITH RELATIVE HUMIDITY OF 40% B. 20* CELCIUS (68f) WITH RELATIVE HUMIDITY OF 90% C.25* CELCIUS (77 f) WITH RELATIVE HUMIDITY OF 90% D.35* CELCIUS (95 f) WITH RELATIVE HUMIDITY...
*September 6, 2008*

**biology**

what is the the equation for photosynthesis?
*August 4, 2008*

**Math**

Differentiate population from sample
*June 12, 2008*

**geometry**

what are the problems?
*May 31, 2008*

**geometry**

What are if then statments .Ill need examples please .its for a project .
*May 28, 2008*

**HELP WITH MATH**

Sorry the caps lock was on. Can you help me with this pre calculus question. I'm not quite sure how to do this. Here are the instructions. Find the area between each curve and the x-axis for the given interval: y=2x^2+x+1 from x=3 to x=6
*May 14, 2008*

**chemistry**

Suggest a type of reaction and the conditions required to breakdown polyamides into their monomers.
*May 7, 2008*

**Psychology-Opinions wanted**

i love psychology
*May 1, 2008*

**physics**

What is the wavelength of a proton traveling at a speed of 6.87 km/s
*April 22, 2008*

**trig**

What kind of reflections are the following trig functions? y = 3cos(x-1) y = sin(-3x+3) y = -2sin(x)-4
*April 21, 2008*

**trig**

What kind of reflections are the following trig functions? y = 3cos(x-1) y = sin(-3x+3) y = -2sin(x)-4
*April 20, 2008*

**trig**

y = 3cos(x-1) Shift along x: Shift along y: Kind of reflection:
*April 20, 2008*

**us history**

Thanks, much appreciated, very nice of you to look.
*March 12, 2008*

**us history**

Is there any way someone can provide me with either a synopsis, or a link to a synopsis to the lincoln steffens book The struggle for self-government? Thanks
*March 12, 2008*

**math**

s^2 - s - 6 What you're looking for is a number that when you multiply it, it equals -6 and when you add them it equals -1. these values -6 and -1 are derived from the equation. so number could be --> -/+ 3, -/+ 2 but since there's only one way of getting -1 when ...
*March 7, 2008*

**Math**

( 2 3/4 miles ) / ( X feet) = ( 1 mile)/ ( 5280 feet ) then cross multiply (2 3/4 mi)*(5280 feet)= (x feet)(1 mi) (2 3/4 )(5280) = x feet that equals your total feet for 2 3/4 miles.
*March 5, 2008*

**math**

7,2 ---> 2,7 5,4 ----> 4,5 1,8 ----->8,1 9,0 -----> can't be reversed because it doesn't become a two digit number. 3,6 ----->6,3 ----------------------------------- all these two digit numbers add up to 9, and if reversed, you should subtract 72- 27= ...
*March 5, 2008*

**chemistry**

Match the correct mole ratio to the substances in the reactions below. carbon monoxide to iron in the reaction: Fe2O3 + CO ==> Fe + CO2 water to manganeese(II) chloride in the reaction: HCl + MnO2 ==> H2O + MnCl2 + Cl2 sodium to oxygen in the reaction: Na + O2 ==> ...
*February 29, 2008*

**geography**

how do i find countries with rank classes?
*February 28, 2008*

**chemistry**

When 0.627 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 102C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. The molar heat of reaction, H rxn, for the reaction ...
*February 24, 2008*

**math**

2. since you want to know for 20 days, how much gas you waste, 20*( 1 1/2) = 30 So , you waste 30 gallons of gas in 20 days, How much money do you spend on 30 gallons of gas. 30*($2)= $60 for 30 gallons of gas which covers 20 workdays)
*February 23, 2008*

**math**

1. its a basic subtraction question. (3/4)-(1/2)=1/4 you subtract because he sold it.
*February 23, 2008*

**math**

(3/4)^(-1). Just switch the fraction to 4/3 , because its the whole fraction raised to -1. if ( 3^(-1) ) / 4 ==> 1/(3*4)=1/12
*February 23, 2008*

**math**

-7^ (-2), put it divided by 1. -1/(7^2) when you place the exponent to the denominator, change the sign, same goes if you have a negative exponent on the denominator, bring it to the numerator and change the sign. -1/49
*February 23, 2008*

**algebra**

(m+5/6)= -19 (m+5/6) *6 = -19 *6 (m+5) -5= -114 -5 m= -119
*February 17, 2008*

**pre- algebra**

(5t-9/ 4 ) = 14 5t-9 =14*4 multiply 4 to both sides, and it cancels the 4 on the left side. 5t-9=56 add 9 to both sides, and it cancels on the left side. 5t=56+9 5t=65 divide by 5 on both sides t= 13
*February 17, 2008*

**pre- algebra**

Do have trouble finding t?
*February 17, 2008*

**pre- algebra**

30= new racket 30= 3x-6, where x=old racket so x=12, old racket cost 12 dollars
*February 17, 2008*

**criminology**

what are the three major kinds of crime statistics used by criminologists? What are the advantages and disadvantages of each measure of crime? What kinds of questions about crime does each measure address most usefully?
*January 16, 2008*

**Math adding fractions**

i need help!
*November 30, 2007*

**Japanese - translate & construct sentences**

Wow! Thank you so much^^
*November 3, 2007*

**Japanese - translate & construct sentences**

I need help translating the following into japanese. -Clan of the Shadow. -Village of the Shadow. -Hidden Village of the Shadow. -Country of the Shadow. -Land of the Shadow. -Second Royal Family of the Village of the Shadow This is what I have so far: #Shadow: kumori, kage, ...
*November 3, 2007*

**Japanese (extramural: linguistics/culture/history)**

|SraJMcGin| No problem!^^ Thank you very much for those links! Very interesting sources.
*November 3, 2007*

**Japanese (extramural: linguistics/culture/history)**

|Anonymous| Oh, you're right. Thanks mate! Good luck to you too. |drwls| My apologies^^ ... but the statement is meant to be taken in a personal sense (nothing foreign for me) ... Impressed that you feel so strongly about me homeland^^ Japan, very very interesting indeed...
*November 3, 2007*

**Japanese (extramural: linguistics/culture/history)**

...sorry for any of the grammatical errors... kinda in a hurry today^^
*November 3, 2007*

**Japanese (extramural: linguistics/culture/history)**

Hallo, my name is Joshua. I'm currently doing my matric in south africa, which is most unfortunate, because south africa doesn't have much to offer in terms of "foreign languages/culture." (Moving to england in a month. Perhaps it has more to offer^^) I am ...
*November 3, 2007*

**Algerbra**

w=42.5
*October 23, 2007*

**Askk**

What is the worlds tallest man
*October 21, 2007*

**History**

Was pope gregory justified in excommunicating Henry? explain?
*October 20, 2007*

**History**

What is excommunication? what role did it play in the struggle between popes and kings?
*October 20, 2007*