Friday

March 27, 2015

March 27, 2015

Total # Posts: 1,612

**chemistry**

At 23°C, Kp = 0.075 for the equilibrium: NH4HS (s) ↔ NH3 (g) + H2S (g) A sample of solid NH4HS is placed in a closed vessel and allowed to equilibrate. Calculate the equilibrium partial pressure (atm) of ammonia, assuming that some solid NH4HS remains.
*September 14, 2012*

**health**

Which organ is NOT a part of the digestive system? A. Esophagus B. Gallbladder C. Kidneys D. Mouth
*September 13, 2012*

**physics**

How do I see other answers
*September 10, 2012*

**precalc**

simplify this expression... x^4+125x/(x^3+5x^2-x-5) I get x^2+5x+25/(-5) but i cant get it to check...did i make an error somewehre?
*September 10, 2012*

**precalc**

simplify this expression... x^4+125x/(x^3+5x^2-x-5) I get x^2+5x+25/(-5) but i cant get it to check...did i make an error somewehre?
*September 10, 2012*

**Business Math **

Please check my work On November 1, 2009, Broom Company received a bank statement that showed a $2,950 balance. Broom showed a $4,010 checking account balance. The bank didn’t return check No. 124 for $1,080 and check No. 138 for $720. A $3,200 deposit made on October 30 ...
*September 10, 2012*

**fractions**

5/6-15/
*September 10, 2012*

**Chemistry**

What mass of KBr is required to prepare 8.oo L of .400 M solution?
*September 10, 2012*

**Science**

How much work is done lifting a 100 N block of ice up to a shelf 3m off the ground? What if you use a ramp? How heavy is the block of ice in pounds?
*September 8, 2012*

**Algebra**

Square root 5-1over x = square root over 5
*September 8, 2012*

**PHYSICS**

An artillery shell is fired with an initial velocity of 300m/s at 55 degrees above horizontal. To clear an avalanche, it explodes on a mountainside 42.0s after firing. What are the x and y coordinates of the shell where it explodes, relative to its firing point?
*September 6, 2012*

**physics**

An object traveling along the x-axis with constant acceleration has velocity v = +11.0 m/s when it is at x = 6.0 m and v = +20.0 m/s when it is at x = 10.0 m. What is its acceleration? HELP PLEASE!!!!!
*September 6, 2012*

**science**

an experiment for a new asthma medication was set up into two groups. Group one was given the new drug, while group 2 was given a sugar pill. the sugar pill serves as _________. a) control B)constant c) Experimental variable D) dependent variable
*September 4, 2012*

**Math**

The measure of an angle's supplement is 44 less than the measure of the angle. Find the measure of the angle and it's supplement.
*September 4, 2012*

**Geometry**

Find m∠T if m∠T is 20 more than four times its supplement.
*September 4, 2012*

**physics**

A model rocket is launched straight upward with an initial speed of 50.2 m/s. It accelerates with a constant upward acceleration of 2.12 m/s2 until its engines stop at an altitude of 167 m. What is the maximum height reached by the rocket?
*August 31, 2012*

**Chem**

What is the density of a block of marble that occupies 350 cm3 and has a mass of 708 g? Answer in units of g/cm 3
*August 30, 2012*

**Calculus**

TWO examples of two sided limits and each theorem on limits.
*August 29, 2012*

**physics**

The position of an object as a function of time is given by x = At2 – Bt + C, where A = 7.3 m/s2, B = 5.8 m/s, and C = 4.5 m. Find the instantaneous velocity and acceleration as functions of time. (Use the following as necessary: t.) help!!!!!!!!! thank you!!
*August 28, 2012*

**Physics**

The sun is 1.40•10^11m away and light travels at 3.00•10^8m/s. Calculate how long it takes light from the sun to reach the earth. Express your answer in scientific notation.
*August 28, 2012*

**Physics**

The sun is 1.40•10^11m away and light travels at 3.00•10^8m/s. Calculate how long it takes light from the sun to reach the earth. Express your answer in scientific notation.
*August 28, 2012*

**Physics**

The sun is 1.40•10^11m away and light travels at 3.00•10^8m/s. Calculate how long it takes light from the sun to reach the earth. Express your answer in scientific notation.
*August 28, 2012*

**Physics**

The sun is 1.40•10^11m away and light travels at 3.00•10^8m/s. Calculate how long it takes light from the sun to reach the earth. Express your answer in scientific notation.
*August 28, 2012*

**community/public health**

identify a new law or regulation that affects the practice of public health or community health nursing. Discover the sponsor of the action. Using news reports, statements in the public record, personal telephone or data.
*August 28, 2012*

**public health**

What types of system changes will you implement or encourage others to implement based upon what you have learned about the importance of interdisciplinary collaboration on health outcomes?
*August 28, 2012*

**Science**

comparative analysis of trees based on the amount of oxygen released per unit time comparative analysis of oxygen release by the other trees....
*August 28, 2012*

**math**

243
*August 23, 2012*

**Math**

Shoshanna is going to use 12 base-ten bloacks to model the largest possible number less than 999. Then she will use another 12 blocks to model the smallest possible number less than 999. What are the two numbers?
*August 21, 2012*

**Math**

If Greg has the same number of 1-blocks 10-blocks and 100-blocks to model an even number that is less than 400 what is the number?
*August 21, 2012*

**math**

For her vacation Mrs. Andrews bought $300 worth of traveler's checks in $10 and $20 denominations. If she has 22 travelers checks in all, how many of each denomination does she have? Let x represent the number of $10 traveler's checks she has. Which expression ...
*August 20, 2012*

**Economics**

Suppose; C = 500 + 0.80(Y – 400) I = 400 G = 400 (X – M) = -100 Solve for income or GDP
*August 17, 2012*

**math grade4**

Round 694,563,239 to the nearest thousand .
*August 14, 2012*

**math**

If Greg has the same number of 1-blocks 10-blocks and 100-blocks to model an even number that is less than 400 what is the number?
*August 13, 2012*

** Informal Logic**

rite two arguments in English, one in the form of modus ponens and one in the form of modus tollens. Then, write the arguments in symbols using sentence letters and truth-functional connectives. (If your computer does not have all the symbols needed, use some other symbol you ...
*August 5, 2012*

**Corporate Finance**

The T-bill rate is 6 percent and the market risk premium is 8 percent, the expected return is 9%, the beta is .3 what is the specific benchmark?
*July 22, 2012*

**SOCIAL ST.**

Can you help me find an article in the New York Times Website about Inmates receiving Education and it should be in the year of 2012. Thx
*July 20, 2012*

**senn high school**

Please wite a paragraph (5sentences)to show you comprehend what analogies and idioms are.Use at least one analogy and one idiom in the paragraph
*June 29, 2012*

**math**

473 x16 in lattice
*June 27, 2012*

**Trigonometry**

Did you ever get the answer to this?
*June 21, 2012*

**Chemistry**

If I have storage tank containing 3.8 X 10E5 liters of water that is contaminated with NaOH and has a pH of 10.82. What volume of 0.1 M HCl is required to bring the pH= 7.0?
*June 21, 2012*

**algebra 2**

a flagpole casts a 60 foot shadow when the angle of elevation of the sun is 35 degrees. find the height of the flagpole
*June 15, 2012*

**Biology!!!**

What is the function of plasma?
*June 13, 2012*

**Math**

Find the input & output values of of the composite function c(t(m)). c(t) = 3t + 2 t(m) = m² - 1 where c is the cost and t is the hrs. and m is the # of minutes.
*June 1, 2012*

**Physics**

find the altitude change of a 10,000 kg fighter which climbs and in doing so loses 100 m/s of airspeed
*May 17, 2012*

**Physics**

find the altitude change of a 10,000 kg fighter which climbs and in doing so loses 100 m/s of airspeed
*May 17, 2012*

**BIOLOGY **

which nucleotide is always paired with adeine in a dna molecule
*May 16, 2012*

**Chemistry**

What is pH
*May 7, 2012*

**CHEMITRY**

what is solubility, in mol/L, of MgCO3 in a 0.65 mol/L solution of MgCL2 if the ksp of MgCO3 is 2.5*10^-5
*May 7, 2012*

**statistics**

a raido show host asked people to call in and wheater they support new legislation to promote cleaner sources of energy. based on this sample, she constructed a confidence interval to estimate the proportion of all listners to her show who support the legislation. is the ...
*May 6, 2012*

**statistics**

Hannah selected a simple random sample of all adults in her town and based on this sample, consrtucted a confidence interval for the mean salary of all adults in the town. however, the distribution of salaries in the town is not exactly normal. will the confidence interval ...
*May 6, 2012*

**CHEMISTRY**

THANK YOU :)
*May 5, 2012*

**CHEMISTRY**

if the [H] of a solution at 25degrees is 1.7*10^-4 mol/L, calculate the [OH] in mol/L, the PH, and the pOH?
*May 5, 2012*

**chem**

show why ka(kb)=kw for this pair of conjugate acid-base: H2C6H6O6 and HC6H66 ^-1
*May 5, 2012*

**chemistry **

the equilibrium system shown below was analyzed and the concentrations of HI(g, and I2(g) were found, in mol/L, to be 4.4, 3.2, 1.5 respectively. the equilibrium constant must be which f the following? H2(g) + I2(g)<> 2HI(g) + 65KJ
*May 5, 2012*

**chemistry**

why did u chose 05 mol instead of the given which is 1.5 mol
*May 5, 2012*

**chemistry**

YES IT IS :) THANK YOU VERY MUCH !!
*May 5, 2012*

**chemistry**

OOPSY I MEANT 3.0L
*May 5, 2012*

**chemistry**

6.0mol of ammonia gas is injected into a 3.0 mol L container. at equilibrium 1.5 mol of hydrogen gas is found in the container. the number of moles of ammonia gas left in the container must be which of the following?
*May 5, 2012*

**physics**

A fisherman's scale stretches 2.8 cm. when a 2.1 kg. fish hangs from it. What will be the frequency of vibration if the fish is pulled down and released so that it vibrates up and down?
*May 3, 2012*

**geometry**

how long is a string reaching from the top of a 20 ft pole to a point 13 ft from the bottom of the pole?
*May 2, 2012*

**Physics**

Does a generator act as a source or a load? thanks!
*May 1, 2012*

**English**

How are the words hasn't, haven't and had't alike?
*April 30, 2012*

**Bio- anatomy**

How can i describe in like 1 or two sentences "visual image processing" without using those three words. I am finding this really hard. Thanks!
*April 29, 2012*

**chemistry**

an unsaturated solution is made by completely dissolving 20.0 grams of NaNO3 in 100.0 grams of water at 20.0 degrees celcius. show a corrct numerical sat up for calculating the number of moles of nano3(gram-formula mass = 85.0 grams per mole) used to make this unsaturated ...
*April 23, 2012*

**Algebra**

Find the GCF of each set of monomials. 16, 20, 64 I got: 2,4,4,8 2,4,5,10 2,4,8,8,16,32 Would the greatest common factors be 2 and 4?
*April 23, 2012*

**Algebra**

Ohh, so 6, right?
*April 23, 2012*

**Algebra**

A bakery packages cookies in two sizes of boxes, one with 18 cookies and the other with 24 cookies. A small number of cookies are to be wrapped in cellophane before they are placed in a box. To save money, the bakery will use the same size cellophane packages for each box. How...
*April 23, 2012*

**Bio Anatomy**

Do you guys know of any sites that talks about the gentics of occipital lobe epilepsy?
*April 22, 2012*

**Algebra, Please Help!**

Devin attempted to solve the inequality -2x+6>10 following the steps below: •subtract 6 from both sides of the inequality. •divide both sides of the inequality by -2. He finds that x>-2. Clearly explain why this is not a correct solution. In your response, be ...
*April 20, 2012*

**Algebra**

Devin attempted to solve the inequality -2x+6>10 following the steps below: •subtract 6 from both sides of the inequality. •divide both sides of the inequality by -2. He finds that x>-2. Clearly explain why this is not a correct solution. In your response, be ...
*April 20, 2012*

**Algebra**

Oh sorry about that. Can you explain what undefined means and what domain means?
*April 20, 2012*

**Algebra**

Use the function to answer the question. f(x)=1/4-x For what value in the domain is the function undefined? Explain your answer.
*April 20, 2012*

**Algebra**

Oh ok, thanks.
*April 20, 2012*

**Algebra**

So they have to equal the exact number, even when you round up?
*April 20, 2012*

**Algebra**

Which equation shows an exact computation? A. 12/7 = 1.714 B. 2π = 44/7 C. 22/7x14 = 44 D. 2√2 = 2.818 And if possible, could you explain what exact computation is? Thank you.
*April 20, 2012*

**geometry**

If all of the diagonals are drawn from a vertex of a quadrilateral, how many triangles are formed?
*April 20, 2012*

**math**

3/27,1/27/,2/27
*April 19, 2012*

**Math Grade 12**

Right on :) , Thank you Ms.Sue Would you be able to please help me with another question ?
*April 18, 2012*

**Math Grade 12**

40 x 2 = 80 0.12x300=36 80+36=116 so for two ways would it be 40x2=80 0.12x600= 72 80+72=152. is that how much the round trip would cost me ?
*April 18, 2012*

**math**

You have decided to move 300km away from your current residence. The truck costs $40 per day and $0.12 per kilometre. If it will take you 2 days to return the truck, how much will the round trip cost you? (Assume that tax is included.)
*April 18, 2012*

**World Geography**

How has climate affected population patterns in Africa?
*April 18, 2012*

**World Geography**

Why have modernization projects in Africa not brought increased wealth to the region?
*April 18, 2012*

**World Geography**

Why have the attempts at modernizing many of the African economies not been able to increase the countries' wealth?
*April 18, 2012*

**french**

I dont know if any of you have read le compte de mont cristo but there are two questions I am confussed about. On what project did the abbot work? and after having encountered Dantes in prison, what did the abbot learn and what was his plan?
*April 16, 2012*

**bio anatomy**

whaat are some genetic variations of the occipital lobe?
*April 16, 2012*

**bio anatomy**

I am doing a paper on the occipital lobe and I am supose to talk about the pathology of it. i know that is like the study of disease of the lobe. So should i talk about different diseases that occur in the lobe? like maybe choose three different ones or the most common ones? ...
*April 16, 2012*

**Math Probability**

whats the answer?
*April 16, 2012*

**Statistics help please!!!**

The makers of the MAGNETIZER Engine Energizer System (EES) claim that it improves gas mileage and reduces emissions in automobiles by using magnetic free energy to increase the amount of oxygen in the fuel for greater combustion efficiency. Following are test results, ...
*April 15, 2012*

**Bio Anatomy**

I am doing a paper on the occipital lobe and I am supose to talk about the pathology of it. i know that is like the study of disease of the lobe. So should i talk about different diseases that occur in the lobe? like maybe choose three different ones or the most common ones? ...
*April 15, 2012*

**Statistics**

The makers of the MAGNETIZER Engine Energizer System (EES) claim that it improves gas mileage and reduces emissions in automobiles by using magnetic free energy to increase the amount of oxygen in the fuel for greater combustion efficiency. Following are test results, ...
*April 15, 2012*

**Speech (acronym help)**

I am doing a demo speech on how to make play dough and my four easy steps are 1. mix 2. add 3. stir and 4. kneed. These 4 make up MASK. I do not at all have to do my speech this way but I think it would be kinda cool if I could somehow relate a mask to the speech so that I ...
*April 14, 2012*

**history**

Anticolonial movements shared all but which of the following features? Answer A Some form of nationalism B Inspiration from traditional cultures as a means of shaping nationalism C Dissatisfaction among nationalists with their own exclusion from power D A steady commitment to ...
*April 12, 2012*

**history**

Which of the following best describes how many Europeans, living through the Great Depression, thought about political systems? a) All forms of governments are bad b) Liberalism is the best form of government c) Liberalism was in decline and authoritarianism was on the rise d...
*April 12, 2012*

** chem**

The pH of the nitrite buffer has changed from 3.00 to 2.80 by adding 11.0mL of 12.0M HCL. How many grams of solid sodium Hydroxide would the chemist add to the buffer to change the pH from 3.00 to 3.80?
*April 11, 2012*

**Government**

What restrictions on freedom of speech and freedom of the press are constitutionally permissible?
*April 9, 2012*

**math**

thanks harry :)
*April 9, 2012*

**math**

The mean of a set of 51 data points is 3.04. If a data value of 16 were added to the data set, what would be the approximate value of the new mean?
*April 9, 2012*

**msu**

As compared to its first year of operation, ABC company grew 8% in the second year and an additional 2% per year for the next two years. If total growth for years 2-4 was $45,000 over the first year’s sales of $150,000, how much did ABC grow in year 2?
*April 8, 2012*

**math**

A boat in calm seas travels 13km east and 35 km north. Find the distance and direction of the trip, relative to to the north.
*April 5, 2012*

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