Thursday

July 31, 2014

July 31, 2014

Total # Posts: 213

**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 a...

**Math**

Find the quotient of l 4/5 divided by l/3

**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.

**Mathematics**

ugh sorry it looks rediculous. let me try again -x+1/3y=5

**Mathematics**

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

**8th grade**

how to find common factors and common multiples for prime factorization.

**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?

**Math**

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

**Algebra Help**

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

**9th Grade Algebra**

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

**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 th...

**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.

**Algebra Help**

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

**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.

**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.

**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 pe...

**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...

**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.

**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?

**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?

**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 i...

**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 prob...

**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.

**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 prob...

**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 fo...

**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.

**General Chemistry**

So do I multiply 6.022 x 10 23. By .00035

**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?

**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...

**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 ...

**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.

**General Chemistry**

Jazz. Can you give show me how to solve for cinnamic alcohol and not acid?

**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 0.4...

**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.

**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.

**General Chemistry**

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

**critical thinking**

what is thinking

**algebra**

DON'T BELIEVE HIM! It's a loan arranger!

**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 puls...

**Math**

5.7x10^9 5.9x10^-8

**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

**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?

**Chemistry**

why is it important to add the nitric acid-sulfuric acid mixture slowly over a 15 minute period?

**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.

**pre-Algebra**

divide both sides by 5 to get x by itself

**Statistics**

sd=standard deviation

**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.

**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 ...

**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.

**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 purchase...

**science**

thigh bone-femur shin bones-tibia and fibula kneecap-patella

**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.

**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...

**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.

**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 do...

**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?

**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?

**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?

**math array**

wanna sext ;)?

**math array**

lol this is funny

**4th grade**

blahfhiurejkadsfkhds

**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 ...

**Elementary Math for Educators**

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

**math**

Use the definition of less than to express the followings. 2<4 3<100 0<3

**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

**philosophy**

Do you know any anti-war Christians (Christian pacifists) in philosophy?

**home economics**

Can the snack itself be attractive?

**Philosophy**

What are the advantages and disadvantages of functionalism?

**Microsoft**

Do you know how to change the scale of the x axis of a graph?

**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.

**Chemistry**

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

**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

**Medical Terminology**

devise memory aids for any five terms relating to the musculoskeletal system

**Cell division**

If white blood cells divide rapidly, is there a high chance of monosomy?

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

Actually,forget the last post. What causes monosomy chromosome 20?

**biology**

Sorry, I meant what would be the result of monosomy 20?

**bio**

What causes a monosomy of chromosome 20?

**Biology**

What are the symptoms of a monosomy of chromosome 20? and is their a name for the disorder/syndrome?

**Biology**

What are the symptoms of a monosomy of chromosome 20? and is their a name for the disorder/syndrome?

**Integtrated math three**

describe how the value of z changes as the values of x and y changes when z=xy

**spanish**

the daughter of sister is my

**chemistry**

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

**English**

Very true. Thanks for your help, you have given me something I can definately work from.

**English**

i don't really see common reasons why the characters rebel but i see similarities in plot. I see that the characters are opposed to the values of the society they live in, but it's required that I provide at least three reasons as to why the characters rebel against th...

**English**

Thanks very much. I was able to answer the first question, but I am still unsure about the second question.

**English**

1)In what ways are the societies described in "The Children of Men" and "Brave New World" dystopias? 2)For what common reasons do the characters of "The Children of Men" and "Brave New World" rebel against their respective societal values?

**Algebra**

a student opens a book to two facing pages the product of the page numbers is 812, find the page numbers.

**11th grade math algebra 2 trig**

alebra like

**science**

the inside of a shape. your welcome

**5th grade**

i need help with factors

**Science**

look in a book

**AP classes**

Your right 100 percent .nice thinking

** 2 Part of accounting**

2 part of Accounting Homework Mar. 5 Declared a $.40 per share cash dividend to be paid on April 6 to stockholders of record on March 20. Mar 20 Date of record Apri. 6 Paid the cash dividend June 17 Declared a 10% stock dividend to be distributed August 17 to stockholders of r...

**accounting**

I need help in preparing the following: 1) record the 2008 transactions in journal form. 2) prepared the stockholders equt7y section of the company balance sheet as of December 31, 2008. Assume net income for the year is $4000, 000 The stockholders equity section of Rigby Movi...

**Math**

The price of a stock, A(x), over a 12-month period decreased and then increased according to the question A(x)= 0.75x2-6x+20, where x equals the number of months. The price of another stock, B(x), increased according to the equation B(x)=2.75x+1.50 over the same 12-month perio...

**science**

describe how oxygen is carried and transferred from the lungs to the tissues

**science**

describe how carbon dioxide is managed by the rbc from the tissue

**science**

name the stages in gastric function and describe there physiology.

**science**

trace the flow of lymphatic fluid through the body.

**science**

describe the steps in cell mediated immunity.

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