Sunday

April 26, 2015

April 26, 2015

Total # Posts: 230

**math**

21.65625
*June 27, 2011*

**Physics**

.54mm & 1.2mm sorry
*June 27, 2011*

**Physics**

SI units
*June 27, 2011*

**Physics**

What hanging mass will stretch a 1.9-m-long, 0.54 - diameter steel wire by 1.2 ?
*June 27, 2011*

**Chemistry**

A buffer solution is prepared by dissolving 0.400 mol of CH3COOH and 0.200 mol of CH3COONa in 1.00 L of water. 1.00 mL of 10.0 M HCl is added to a 100 mL portion of this solution. What is the final pH of the resulting solution? Ka of CH3COOH = 1.8 x 10¯5
*June 26, 2011*

**Algebra**

If 10,000 is invested at 4.8% simple interest, how long will it take for the account balance to grow to 11,200.
*June 1, 2011*

**English-lord of the flies**

What do you think? Does girls who wear makeup sort of resemble Jack and his mask?
*May 30, 2011*

**English-lord of the flies**

Thank you Ms. Sue!
*May 30, 2011*

**English-lord of the flies**

Yes, well you see i cant think of a single thing that this book resembles in our present day world... hence why i posted the question. could you possibly give me a jump start?
*May 30, 2011*

**English-lord of the flies**

Give five present day examples of similar characteristics or situations present in the novel lord of the flies.
*May 30, 2011*

**Algebra**

The sum of two numbers is 68 and the difference is 10. What are the numbers?
*April 26, 2011*

**Algebra**

put the following into mx+b form. x+1/6y=1/2 I got either y=-x+1/12 y=-x+3 I don't know which one.
*April 9, 2011*

**Psychics**

A freight car is moving freely along a railroad track at 7.0 m/s and collides with a tanker car that is at rest. After the collision, the two cars stick together and continue to move down the track. What is the magnitude of the final velocity of the cars if the freight car has...
*March 17, 2011*

**math**

two-fifths of the voters already prefer candidate x. if he took money from a political action committee to buy television time, a third of those who do not now prefer him would be convinced to vote for him. But he would los the support of a fifth of those who support him. If ...
*March 17, 2011*

**Psychics**

Bradley, working in his 23 C kitchen, is cooking himself a crepe in an iron skillet that has a circular bottom with a diameter of .30 m. How hot must the skillet be in order for Bradley to make a 710.3 m^2 crepe that just fills the bottom of the pan? (coefficient of expansion ...
*March 1, 2011*

**Math**

What is the name for a three demensional figure that has only one circular face
*February 28, 2011*

**Physics**

are you there?
*February 24, 2011*

**Physics**

yes because it is less dense!! how would i compare the buoyant force of a can of diet soda ...
*February 24, 2011*

**Physics**

A con of soda displaces 3.79 * 10^-4 m^3 of water when completely submerged. Each 0.018 kg can contains 3.54 * 10^-4 m^3. Compare the buoyant force on a can of diet soda of density 1001 kg/m^3 to the force on a can of regular soda of density 1060 kg/m^3. If many cans of diet ...
*February 24, 2011*

**Math**

Find the quotient of l 4/5 divided by l/3
*February 14, 2011*

**Mathematics**

If a pentagon is dialated which of the folloeing characteristics change? 1.side lenght 2.area 3.the coordinates i think tis 2 & 3 but not sure.
*December 15, 2010*

**Mathematics**

ugh sorry it looks rediculous. let me try again -x+1/3y=5
*December 15, 2010*

**Mathematics**

What is the slope of the line described by the equation 1 _____________________________-x+-y=5___ ________________________________3______ i hope someone understands this problem
*December 15, 2010*

**8th grade**

how to find common factors and common multiples for prime factorization.
*September 16, 2010*

**Inequalities**

Shelby's test scores are 99, 91, and 85. If she must average at least 90 points to get an A in the class, what must she earn on the next test? Okay so this was my equation but it came out completely wrong. 99+91+85+x greater than or equal to 90 So what should the equation be?
*September 9, 2010*

**Math**

Okay, I just need the steps for simplifying this type of radical: 5 -- 3√2 thats all one problem. thanks!
*September 8, 2010*

**Algebra Help**

Okay, I just need the steps for simplifying this type of radical: 5 -- 3√2 thats all one problem. thanks!
*September 8, 2010*

**9th Grade Algebra**

Okay, I just need the steps for simplifying this type of radical: 5 -- 3√2 thats all one problem. thanks!
*September 8, 2010*

**Chemistry**

Which of the following statements is (are) true? A. The vapor pressure of CO2 is lower than the vapor pressure of water. B. Sea water has a lower vapor pressure than distilled water. C. The vapor pressure of 1 m NaCl is higher than the vapor pressure of 0.5 m KNO3, assuming ...
*August 30, 2010*

**Algebra**

Write the equation of the line that passes through the (-2,1) and is perpendicular to y=5. Okay, I don't understand how I can do this without a slope.
*August 26, 2010*

**Algebra Help**

Wait wouldn't that last part be y-1=1/2(x-5) because five is the midpoint of the x's
*August 26, 2010*

**Algebra Help**

Write the equation of a perpendicular bisector of the segment joining the points: (7,2) and (3,0). Okay, so I don't even know what a bisector is. Is there a formula for this or something? If some could someone tell me it. Or tell me the process.
*August 26, 2010*

**Math**

Well for you have to put in in y=mx+b form. So it would be y=2x. That means that your y intercept is zero. So then you would plot your first dot at 0,0. And then from there go up two and over one.
*August 26, 2010*

**Algebra Help**

It is estimated that each cigarette a person smokes shortens that person's life by the amount of time she or he took to smoke it plus ten minutes. Write an algebraic rule that determines the number of minutes (t) a person's life is shortened by smoking c cigarettes ...
*August 25, 2010*

**Algebra**

It is estimated that each cigarette a person smokes shortens that person's life by the amount of time she or he took to smoke it plus ten minutes. Write an algebraic rule that determines the number of minutes (t) a person's life is shortened by smoking c cigarettes per...
*August 25, 2010*

**General Chemistry**

PLEASE ANSWER VERY SOON I AM STUCK! Crystalline silicon has a cubic structure. The unit cell edge length is 543 pm. The density of the solid is 2.33 g/cm3. Calculate the number of Si atoms in one unit cell.
*July 14, 2010*

**UncG**

A 1300 kg sports car accelerates from rest to 90 km/h in 7.4 s. What is the average power delivered by the engine?
*June 6, 2010*

**General Chemistry**

Can you clarify do I get the moles of KCN by .14 grams of KCN/ 65.02 grams of KCN. How do I get the moles of KCN?
*May 26, 2010*

**General Chemistry**

When potassium cyanide (KCN) reacts with acids, a deadly poisonous gas, hydrogen cyanide (HCN), is given off. Here is the equation: KCN(aq) + HCI(aq) -> KCI(aq) + HCN (g) In a sample of 0.140 grams of KCN is treated with an excess of HCI calculate the amount of HCN formed ...
*May 26, 2010*

**Genera Chemistry**

Nitric oxide (NO) reacts with oxygen gas to form nitrogen dioxide (NO2), a dark-brown gas: 2NO(g) + O2(g) -> 2NO2(g) In one experiment 0.886 moles of NO is mixed with 0.503 moles of O2. Calculate which of the two reactants is the limiting reagent. Please show set up of ...
*May 26, 2010*

**Genera Chemistry**

Balance the following equations: a. C + O2 CO b. CO + O2 CO2 c. H2 + Br2 HBr d. K + H2O KOH + H2 e. Mg + O2 MgO please explain and show work.
*May 24, 2010*

**General Chemistry**

Nitric oxide (NO) reacts with oxygen gas to form nitrogen dioxide (NO2), a dark-brown gas: 2NO(g) + O2(g) -> 2NO2(g) In one experiment 0.886 moles of NO is mixed with 0.503 moles of O2. Calculate which of the two reactants is the limiting reagent. Please show set up of ...
*May 24, 2010*

**General Chemistry**

3.71 When potassium cyanide (KCN) reacts with acids, a deadly poisonous gas, hydrogen cyanide (HCN), is given off. Here is the equation: KCN(aq) + HCl(aq) -> KCl(aq) + HCN(g) If a sample of 0.140 grams of KCN is treated with an excess of HCl, calculate the amount of HCN ...
*May 24, 2010*

**General Chemistry**

Balance the following equations: a. C + O2 CO b. CO + O2 CO2 c. H2 + Br2 HBr d. K + H2O KOH + H2 e. Mg + O2 MgO please explain and show work.
*May 24, 2010*

**General Chemistry**

So do I multiply 6.022 x 10 23. By .00035
*May 17, 2010*

**General Chemistry**

Thank you I did the first part but I am still confused about how to do b. Is a mole a molecule then does the # of moles = .469/134. If so what do I do with the 1 mole 6.022x10 23. What does the proportion look like?
*May 17, 2010*

**General Chemistry**

Cinnamic alcohol is used mainly in perfurmery, particularly in soaps and cosmetics. Its molecular formula is C9H10O. a. Calculate the percent composition by masss of C, H, and O in cinnamic alcohol. b. How many molecules of cinnamic alchol, not acid ,are contained in a sample...
*May 17, 2010*

**General Chemistry**

Cinnamic alcohol is used mainly in perfurmery, particularly in soaps and cosmetics. Its molecular formula is C9H10O. a. Calculate the percent composition by masss of C, H, and O in cinnamic alcohol. b. How many molecules of cinnamic alchol, not acid ,are contained in a sample ...
*May 17, 2010*

**General Chemistry**

Calculate the number of C atoms, H atoms, and O atoms, in 1.50 grams of glucose (C6H1206). I do not understand how to calculate this. Please explain and post the correct answers.
*May 17, 2010*

**General Chemistry**

Jazz. Can you give show me how to solve for cinnamic alcohol and not acid?
*May 17, 2010*

**General Chemistry**

Cinnamic alcohol is used mainly in perfurmery, particularly in soaps and cosmetics. Its molecular formula is C9H10O. a. Calculate the percent composition by masss of C, H, and O in cinnamic alcohol. b. How many molecules of cinnamic alchol are contained in a sample of mass 0....
*May 17, 2010*

**General Chemistry**

Calculate the number of C atoms, H atoms, and O atoms, in 1.50 grams of glucose (C6H1206). Please explain and exact example of how to do this and what the correct answers are.
*May 17, 2010*

**General Chemistry**

If the molar mass and the moles of glucose is .000833. What do I do next? I don't have a scientific calculator with me now.
*May 17, 2010*

**General Chemistry**

Calculate the number of C atoms, H atoms, and O atoms, in 1.50 grams of glucose (C6H1206).
*May 17, 2010*

**critical thinking**

what is thinking
*May 6, 2010*

**algebra**

DON'T BELIEVE HIM! It's a loan arranger!
*May 4, 2010*

**math**

in order to achieve from aerobic exercise, one should maintain one's heart rate at a certain level. A fourty year old women with a reating heart beat of 80 beats per minue should keep her heart rate between 140 and 160 beats per minute while exercising. She checks her ...
*March 18, 2010*

**Math**

5.7x10^9 5.9x10^-8
*March 6, 2010*

**chemistry**

please explain why the gem-dimethyl groups appear as separate peaks in the proton NMR spectrum of isoborneol although they almost overlap in borneol
*March 2, 2010*

**Chemistry**

In the experiment Nitration of Methyl Benzoate why is it important to add the nitric acid-sulfuric acid mixture slowly over a 15 minute period?
*February 23, 2010*

**Chemistry**

why is it important to add the nitric acid-sulfuric acid mixture slowly over a 15 minute period?
*February 23, 2010*

**s.s.**

I'm am going to assume this is supposed to be answered from your book. Check your book first, and if you can't find it there, you could google it.
*February 20, 2010*

**pre-Algebra**

divide both sides by 5 to get x by itself
*February 19, 2010*

**Statistics**

sd=standard deviation
*February 8, 2010*

**english **

The number of active movie screens--that is, screens showing films or booked to do so--is higher now than at any time since World War II. You do this because you are defining active movie screens and showing the info is not necessary.
*January 31, 2010*

**science**

A Punnet square is a table that shows what traits two parents (or first generation species) have and the possible outcomes the offspring will have. You can tell the chances of getting certain genes are. I'm not quite sure how to make an example on here, but that's the ...
*January 27, 2010*

**Elimination method**

Try to get rid of the r first. Multiply the top row by -5 and the bottom row by 2. solve for s. Get rid of the s next, multiplying the top by 2 and the bottom by 5. solve for r. There should be a solution.
*January 27, 2010*

**math**

Sam received a $290 discount loan to purchase a stereo. The loan was offered at 16% for 90 days. Find the interest in dollars and the proceeds for the following problem. The interest is $12.60, $11.60, or $10.60 ? The proceeds are $279.40, $278.40, or $277.40 ? Curtis ...
*January 26, 2010*

**science**

thigh bone-femur shin bones-tibia and fibula kneecap-patella
*January 23, 2010*

**Pre-Algebra B**

add all the numbers and divide by the number of leaves. *a stem is on the left of the line and stands as a digit in the 10s place. EX. 5/4 would be 54.
*January 23, 2010*

**algebra**

Try to get the x by itself, just like a=bx + c, where you would subtract c from both sides then divide both sides by b. since the coefficient for x on both are positive, you don't have to worry about the greater than/less than signs. so for the first, subtract 12 from both...
*January 20, 2010*

**math**

convert 12 2/3 to an improper fraction, then times it by 3/3 so the denominator is 9. convert 5 7/9 to an improper fraction. after getting the answer, convert back to a mixed number and reduce.
*January 20, 2010*

**physics**

The engine of a toy rocket supplies an average acceleration of 38.0 m/s/s to the rocket for an interval of 0.80 s. A.)If the toy roocket is launched vertically, how high does it rise in this interval? B.) How fast is the rocket moving at the end of 0.80 s? C.) What altitude ...
*January 19, 2010*

**physics**

Newton assumed that a gravitational force acts directly between Earth and the Moon. How does Einstein's view of the attractive force between the two bodies differ from Newton's view?
*January 16, 2010*

**physics**

According to Newton's version of Kepler's third law, how would the ratio T^2/r^3 change if the mass of the Sun were doubled?
*January 16, 2010*

**physics**

during space flight, astronauts often refer to forces as multiples of the force of gravity on earth's surface. what does a force of 5g mean to an astronaut?
*January 16, 2010*

**math array**

wanna sext ;)?
*August 17, 2009*

**math array**

lol this is funny
*August 17, 2009*

**4th grade**

blahfhiurejkadsfkhds
*August 13, 2009*

**word problem Math**

A pollster interviewed 500 university seniors who owned credit cards. She reported that 240 had Goldcard, 290 had Supercard, and 270 had Thriftcard. Of those seniors, the report said that: 80 owned only a Goldcard and a Supercard, 70 owned only a Goldcard and a Thriftcard, 60 ...
*August 10, 2009*

**Elementary Math for Educators**

give three ways a student could find the product of 9x7 if she had not memorized this fact.
*August 9, 2009*

**math**

Use the definition of less than to express the followings. 2<4 3<100 0<3
*August 8, 2009*

**Economics**

Do you know any websites where i can find out about capitalism in Switzerland? I searched "capitalism in switzerland" using goole, but i have not found a very informative site
*June 1, 2009*

**philosophy**

Do you know any anti-war Christians (Christian pacifists) in philosophy?
*May 7, 2009*

**home economics**

Can the snack itself be attractive?
*April 19, 2009*

**Philosophy**

What are the advantages and disadvantages of functionalism?
*April 10, 2009*

**Microsoft**

Do you know how to change the scale of the x axis of a graph?
*April 5, 2009*

**Science**

I'm trying to hypothesize what caused a fishkill. Is it possible that chemicals can raise the temperature of a river?, causing lower oxygen levels? This seems a bit far-fetched, but I'm wondering if this could happen. Thank you.
*March 22, 2009*

**Chemistry**

Is fertilizer usually basic or acidic? I'm referring to fertilizers that contain nitrates, phosphates, and arsenic. Thanks for investigating this.
*March 22, 2009*

**Environmental Studies**

I am trying to find the EPA standards for the maximum amounts of phosphate per liter of water. I went on their site, but I couldn't find it. Could anyone find out for me? THank you
*March 22, 2009*

**Medical Terminology**

devise memory aids for any five terms relating to the musculoskeletal system
*February 19, 2009*

**Cell division**

If white blood cells divide rapidly, is there a high chance of monosomy?
*February 5, 2009*

**PLZ HELP!!!!!!!!!!!!!**

Actually,forget the last post. What causes monosomy chromosome 20?
*February 5, 2009*

**biology**

Sorry, I meant what would be the result of monosomy 20?
*February 5, 2009*

**bio**

What causes a monosomy of chromosome 20?
*February 5, 2009*

**Biology**

What are the symptoms of a monosomy of chromosome 20? and is their a name for the disorder/syndrome?
*February 4, 2009*

**Biology**

What are the symptoms of a monosomy of chromosome 20? and is their a name for the disorder/syndrome?
*February 4, 2009*

**Integtrated math three**

describe how the value of z changes as the values of x and y changes when z=xy
*January 31, 2009*

**spanish**

the daughter of sister is my
*January 28, 2009*

**chemistry**

besides a splint test, how can you determine whether hydrogen or oxygen is present?
*December 15, 2008*