Sunday

September 21, 2014

September 21, 2014

Total # Posts: 1,834

**Chemistry**

In one experiment, 50.0ml of 0.10M CH3NH2, is mixed with 20.00ml of 0.10 M CH3NH3Cl. The kb of CH3NH2 is 3.70*10^-4. a) write the chemical reaction for the equilibrium which becomes established, using H2O as a reactant. b)Write the net-ionic equation that occurs when Ba(OH)2 ...
*February 27, 2010*

**earths core**

what are a few (1 or two) reasons why the core cant be of lonestones?
*February 23, 2010*

**science**

was their any changes to the ocean since 10 million years ago?
*February 23, 2010*

**Social Studies**

What were the conditions of the mines during the Industrial Reolution? Why did so many women want to work in the mines without clothing and have heavy belts around their waists and chains between their legs?
*February 22, 2010*

**us history**

Write an Essay about the different perspectives that a chinese native and a christian missionary might have had on the Boxers rebellion
*February 22, 2010*

**pre-calc**

Find a vector perpendicular to the plane containing the given points. (0,-2,2), (1,2,-3), and (4,0,-1) My teacher was unable to finish the lesson, but I'd like to know how to solve this problem.
*February 17, 2010*

**Physics**

NOt rude at all. Just wants to see some effort from the poster. Although, if it's their first time posting they may not know that. The person who posted should just repost saying, "I tried this," or "I'm not sure what this means, but does it have to do ...
*February 17, 2010*

**lotions **

what kind of moisturizers will melt faster overtime ?
*February 15, 2010*

**Global History**

How did transportation improved during the Industrial Revolution?
*February 15, 2010*

**how to..**

how to answer this question ? describe how someone could improve the following areas of fitness in the pool. 1.cardio cascular, 2.muscle strength, 3.muscular endurance. what does this mean ? how do i answer this?
*February 13, 2010*

**Science**

125 mL of water at 10 C is poured onto a 500 g block of ice at -35 C. Assuming it is a perfectly insulated container, what will be the final temperature of the mixture?
*February 10, 2010*

**business studies**

how does the sale of fixed assets and retained earnings help in raisihg business finance
*February 8, 2010*

**physics**

A diver springs upward from a board that is three meters above the water. At the instant she contacts the water her speed is 9.10 m/s and her body makes an angle of 77.0° with respect to the horizontal surface of the water. Determine her initial velocity, both magnitude ...
*February 7, 2010*

**physics**

An airplane is flying with a velocity of 224 m/s at an angle of 30.0° with the horizontal, as the drawing shows. When the altitude of the plane is 2.1 km, a flare is released from the plane. The flare hits the target on the ground. What is the angle?
*February 7, 2010*

**Calc**

let f be the function whose graph goes through the point (3,6) whose derivatie is given by f'(x) =(1+e^x)/(x^2) 1. write an equation of a line tangent to the graph at x=3 and use it to approximate f(3.1) --- I GOT : y= (1+e^3)/(9) (.1) +6 i dont know if it is right i dont ...
*February 7, 2010*

**college**

A 14-year zero-coupon bond was issued with a $1000 par value to yield 12%. What is the approximate market value of the bond?
*February 6, 2010*

**Hydraulics**

A cylinder with a 3" bore and a stroke of 16" receives 18 gpm. What is the piston rod velocity?
*February 1, 2010*

**Mays Middle**

Math-The low temperature for 6 consecutive days in Montana city were 9, 3, 4, 16, 11, and 5 degrees. What would the low temperature have to be on the seventh day to have a meanh low temperature of 9 degrees for the week?
*February 1, 2010*

**microeconomics**

Suppose a production possibilities frontier can be expressed as + = 9. The opportunity cost of going from 0 units of X to 1 unit of X is
*January 31, 2010*

**College Physics 1**

A drag racer, starting from rest, speeds up for 402 m with an acceleration of +24.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.40 m/s2. How fast is the racer moving 3.75 102 m after the parachute opens
*January 31, 2010*

**College Physics 1**

A drag racer, starting from rest, speeds up for 402 m with an acceleration of +24.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.40 m/s2. How fast is the racer moving 3.75 102 m after the parachute opens
*January 31, 2010*

**Physics **

If a pronghorn antelope accelerates from rest in a straight line with a constant acceleration of 1.4m/s^2, how long does it take for the antelope to reach a speed of 23m/s? ____s
*January 29, 2010*

**Physics**

A particle experiences a constant acceleration that is north at 100m/s^2. At t=0, its velocity vector is 70m/s east. At what time will the magnitude of the velocity be 100m/s? ____s
*January 29, 2010*

**Physics**

An engine pulls a train of 20 frieght cars each having a mass of 5.0*10^4 kg with a constant force. The cars move from rest to a speed of 4.5 m/s in 19.7s on a straight track. Neglecting friction, the force with which the tenth car pulls the eleventh one (at the middle ofthe ...
*January 29, 2010*

**Physics**

A man lifts a 1.0 kg stone vertically with his hand at a constant upward acceleration of 1.8m/2^2. what is the magnitude of the total force of the stone on teh man's hand? In Newtons downward?
*January 29, 2010*

**holocaust**

How were Jews viewed in the United States in the pre-WWII era?
*January 27, 2010*

**math**

A hill is inclined at 18 degrees to the horizontal. If the base of the hill is at sea level, find my height above sea level if i walk 1.2 km up the hill
*January 25, 2010*

**physics**

In the Millikan oil drop experiment, an atomizer (a sprayer with a fine nozzle) is used to introduce many tiny droplets of oil between two oppositely charged parallel metal plates. Some of the droplets pick up one or more excess electrons. The charge on the plates is adjusted ...
*January 24, 2010*

**10th grade english**

A __________ sets up one's argument and provides a basis from which one will build his or her essay.
*January 23, 2010*

**world issues**

Canada has developed in many ways since Wrold War 1. From that time to the present, what do u think are the three greatest accomplishments achievements or improvments Canada has seen? why? give specific reasons for your choices. I need this help because i dont know what to ...
*January 21, 2010*

**dante's inferno**

seriously?
*January 19, 2010*

**dante's inferno**

What does Dante say will heal all light which was dim?
*January 19, 2010*

**statistics**

The weights of pineapples grown are approximately normally distributed with a standard deviation of 2.5 and mean of 31 ounces. Suppose a single pineapple is selected at random. a. If a single pineapple is selected at random, what is the approximate probability that it weighs ...
*January 18, 2010*

**6 grade math**

Two dice are rolled. Find the odds in favor of a sum of 6.
*January 18, 2010*

**algebra**

6-5*8+2^3
*January 15, 2010*

**math**

Lines 1 and 2 are parallel. If 5 = 116°, what is the measure of 4?
*January 12, 2010*

**Pre-Cal**

Solve 5sinx=-4cosx for 0 less than or equal to x <2pi answers to nearest hunderth of a radian
*January 10, 2010*

**Pre-Cal**

Nancy and Harry are lifting a stone statue and moving it to a new location in their garden. Nancy is pushing the statue with a force of 120 newtons(N) at a 60 degree angle with the horizontal while Harry is pulling the statue with a force of 180 newtons at a 40 degree andgle ...
*January 10, 2010*

**Physics-lunar**

they gave us a diagram of the moon chart like at waxing waning stuff like that and then the question,... At what time will a full moon rise? Please enter military time in whole hours, ex. 15 for 3 pm.
*January 8, 2010*

**Physics-lunar**

At what time will a full moon rise? Please enter military time in whole hours, ex. 15 for 3 pm.
*January 8, 2010*

**Systems operations management**

answer for both
*January 5, 2010*

**microeconomics 3**

. As tradition has it, Santa Claus is coming on the 5th of December from Spain to the Netherlands to bring gifts to Dutch children. Help is needed to distribute the gifts for which the Santa Claus committee is hiring helpers, so-called Zwarte Pieten. There are two types of ...
*January 3, 2010*

**Pre-Cal**

Hi, can someone please solve this step-by-step for me? I really don't get it... Directions: Use the quadratic formula to solve the equation in the interval [0,2PI). Then use a graphing utility to approximate the angle x. 4cos^2x-4cosx-1=0 thanks.
*January 1, 2010*

**pre-cal**

What are the steps for solving this? Directions Use the quadratic formula to solve the equation in the interval [0,2PI). Then use a graphing utility to approximate the angle x. 4cos^2x-4cosx-1=0 thanks.
*January 1, 2010*

**math**

Find a rational number between 3/5 and 4/5
*December 13, 2009*

**physics**

A diver swims to a depth of 3.2 m in a freshwater lake. What is the increase in the force pushing in on her eardrum, compared to what it was at the lake surface? The area of the eardrum is 0.60 cm2.
*December 13, 2009*

**physics**

What percentage of a floating iceberg’s volume is above water? The specific gravity of ice is 0.917 and the specific gravity of the surrounding seawater is 1.025.
*December 13, 2009*

**accounting**

how would interest on a bank loan be adjusted using joural intries
*December 11, 2009*

**spanish II**

how do you say these sentences in spanish How long shall I take it for and Take it for 2 weeks until the pain stops.
*December 10, 2009*

**algabra **

on pizzazz 27 what is the answer to "what is it like to live under a rug"
*December 9, 2009*

**social science**

would this be the answer the Democrats and Republicans dominate the U.S. political system. many timesa third parties have greatly influenced national politics, even though their candidate did not win the election.
*December 9, 2009*

**social science**

What impact have third parties had on the United States?
*December 9, 2009*

**need help asap**

8x-2-5x=8 solve for x answers are a)1.3 b)2 1/2 c)3 1/2 d)7
*December 9, 2009*

**7th**

what is the smallest prime greater then 200 is it 201 205 211 214
*December 9, 2009*

**math**

When Professor Sum was asked by Mr. Little how many students were in his classes, he answered, “All of them study either languages, physics, or not at all. One-half of them study languages only, one-fourth of them study French, one-seventh of them study physics only, and ...
*December 8, 2009*

**biology**

examples of a food web that tells the order
*December 6, 2009*

**physics**

at 25.0m below the surface of the sea (density=1.025kg/m^3), where the temperature is 5.00C, a diver exhales an air bubble having a volume of 1.00cm^3. If the surface temperature of the sea is 20.0C, what is the volume of the bubble just before it breaks the surface?
*December 3, 2009*

**pre calc**

identify if the following are functions or not explain the answer (a)x=7y-10
*December 2, 2009*

**spanish II**

thanks
*December 1, 2009*

**spanish II**

how do you say can't see outside and drying clothes
*December 1, 2009*

**spanish II**

how do you say sell food and hang clothes on a line in spanish
*December 1, 2009*

**crt205**

When you are building an argument for an issue that is significant to you, do you think it is more important to be valid or sound? Explain your answer.
*December 1, 2009*

**class rank**

does that mean i have to make a valedictorian speech at graduation
*November 30, 2009*

**class rank**

what does the class rank 1 out of 120 mean?
*November 30, 2009*

**physics**

a space shuttle is in a cic ular orbit at a height of 250 km, where the acceleration os earth,s gravity is 93 percent of its surface value. that is the period of its orbit
*November 28, 2009*

**Physics**

1. A train whistle has a frequency of 1000 Hz. If the train is speeding at a velocity of 60 km/h past a stationary railroad crossing attendant, what is the apparent frequency a) as the train approaches him, b) as it moves away from him? Assume speed of sound to be 350 m/s. 2. ...
*November 26, 2009*

**effective essay writing**

A healthful diet and regular exercise not only improves health, but lowers health care costs. What kinds of supporting paragraphs—examples, details, definitions, analysis, division and classification, process analysis, comparison-contrast, cause-effect, and argument—...
*November 25, 2009*

**French help part 2**

1- Jean et Julien voient 2- Vous recevrez 3- Nous avons vu 4- Est-ce quetu crois 5 -je deteste Paul. Je n'ai pas envie de le voir. explanation of 5) I don't like Paul. I don't want to see him.
*November 19, 2009*

**French help part 1**

1-dit 2- ecris 3-lisent 4-avez lu 5-dites Madison, I am very good in French writing and talking and I might help you sometimes if you want to learn doing your homework yourself, not just for having a good grade. Call me any time at (252)670-3001 et essaie de parler Francais.
*November 19, 2009*

**French**

That's right
*November 19, 2009*

**french**

That not a French, it is Creole which is one language which sound like French and it is use by people from Europe isle. If you listen the Zouk music, you might hear the same sound.
*November 18, 2009*

**French 101 help Part 2**

6- savez-vous 7-Connaissent 8-savons 9 - sortent 10- ment 11-Sortez 12-dors 13- es sorti 14- vas 15-a servi Good job Madison
*November 16, 2009*

**Math**

I'm so stuck. The Orange County Teachers' Credit Corp. offers an account which pays 14% compounded quarterly. What is its effective rate of yield? (Express your answer to the nearest one-hundredth of a percent.)
*November 12, 2009*

**Science**

Compare the angle of refraction with the angle of incidence for all angle of incidences greatter than 0 degrees. what relationships do you notice between the angle of incidence and the angle of refraction? explain why you expect this relationship to be true (thik about the ...
*November 8, 2009*

**Science**

Explain why air as the incident medium allows us to find the unknown indexx of refraction of the medium. (If the incident medium is NOT air, nR will be impossible to determine)
*November 8, 2009*

**Foreign Languages**

Je t'aime, mon amour, quand j'entends ta voix je t'aime, ma vie ne sera pas sans toi Je vis ma vie pour toi. C'est un univers pour moi. J t'aime, mon amour, lorsque j'entends ta voix
*November 4, 2009*

**Math**

yes ray
*November 3, 2009*

**Math**

I made a mistake when I simplified. Find and explain my mistake. Then complete the problem correctly. Simplify:(3m^7k^-5)^-3 Solution: 3^-3 m^4 k^-8 m^4/3^3k^8 Answer:m^4/27k^8
*November 3, 2009*

**algebra**

you did that wrong
*November 3, 2009*

**college**

The answer is A
*October 29, 2009*

**chemistry**

The equilibrium constant (Kc) for the gas phase reaction 2 NH3 N2 + 3 H2 is 3.0 x 10-3 at some temperature. The reaction is started by placing a 0.040-mol sample of ammonia in an empty one-liter flask. When equilibrium is established how much N2 is present? 1. ) 0.019 mol 2...
*October 25, 2009*

**his 130**

How do you think such large-scale, new-found getting and spending influenced people’s feelings about America
*October 23, 2009*

**corp. finance**

can I plug this in on a financial calculator? If so how would I?
*October 22, 2009*

**corp. finance**

What is the future value at the end of year 20 of depositing $5,000 today, $3,500 at the end of years 1, 2 and 3, $5,000 at the end of years 4, 5, 6 and 7 and $4,250 at the end of years 8, 9, 10, 11 and 12 into an account that pays 13% p.a.?
*October 22, 2009*

**physics**

PE = mgh Therefore m = PE/(g x h) m = 24/(9.8 x 3) m = 0.82kg Now the object is moved to 1m above the ground. PE = mgh PE = 0.82 x 9.8 x 1 PE = 8.036 Round off to 8 (A) Alternatively, you could divide 24J by 3, as this is the change in height difference. But you may be marked ...
*October 22, 2009*

**physic**

PE = mgh Therefore H = PE/(mxg) H = 7/(1.5 x 9.8) H = 0.48m PE (object 2) = 4.5 x 9.8 x 0.48 PE (object 2) = 21.17J
*October 22, 2009*

**physics**

PE = mgh PE = 2 x 3 x 9.8 PE = 58.8J
*October 22, 2009*

**college Stats**

If Y has a geometric distribution with success probability p, show that P(Y= an odd integer)= p/(1-(q^2))
*October 20, 2009*

**physics**

A golfer can hit a golf ball a horizontal distance of over 300m on a good drive. What maximum height will a 301.5m drive reach if it is launched at an angle of 25 degrees to the ground?(Hint:At the top of its flight, the ball's vertical velocity component will be zero.)
*October 20, 2009*

**math **

How many cubic centimeters of a 25% antibiotic solution sould be added to 10 cubic centimeters of a 60% antibiotic solution in order to get a 30% antibiotic solution?
*October 18, 2009*

**math **

How many cubic centimeters of a 25% antibiotic solution sould be added to 10 cubic centimeters of a 60% antibiotic solution in order to get a 30% antibiotic solution?
*October 18, 2009*

**math156proportions**

how do I find the value of y in 2/y=4/5
*October 12, 2009*

**algebra**

how do I solve 2/y=4/5
*October 12, 2009*

**finance**

i understand the problem below but how is it related to this problem ...would this answer be 41.42%
*October 10, 2009*

**Finance. **

Anthony is asking you to invest in a venture that will double your money in 3 years. Compute the annual rate of return they are promising you?
*October 10, 2009*

**6th grade**

Which grows faster, salt crystals or sugar crystals?
*October 8, 2009*

**Geometry - Conditional Statements/Proof**

Rewire each statement as two if-then statements that are converses of each other. 18. Two angles are supplementary if and only if the sum of their measures is 180. 20. (x-4)(x+6) = 0 if and only if x = 4 or x = -6 22. Theorem 2-5 may also be worded in this way: "If ...
*October 8, 2009*

**grammar**

Ernesto uses dial soap and colgate toothpaste, even though his wife tries to save money by using generic brands
*October 7, 2009*

**Prorgramming in Java**

EDIT: Nevermind I fixed the line of code.
*October 5, 2009*

**Prorgramming in Java**

Thank you, how would I make a find method in this case and also this line: list=new public ArrayList<CatalogItem>(100); produces a few errors, I already renamed the variables to what was needed for it to work properly, but im getting a bunch of small errors
*October 5, 2009*

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