Wednesday

April 16, 2014

April 16, 2014

Total # Posts: 846

**Chemistry **

I'm confused on this problem A gaseous mixture inside a rigid steel vessel contains 75% CO2 and 25% H2O by volume at 175 degrees C and 225 kPa. The mixture is then cooled to 0 degrees C, thereby condensing the water vapor. What is the pressure of the CO2 at 0 degrees C? (a...

**Core mathematics**

Reiny can u answer my other question please it is the latest one about the charity swim

**Core mathematics**

i think

**Core mathematics**

1 = 6.16 and 7= 43.12

**math**

thank you so much!

**math**

In a charity swim,Jim swam 1200m and Sue 2km. What is the ration of Jim's distance to Sue's? give the ration in the simplest form.

**math**

does not matter anymore i figured it out please just answer my other one x

**math**

A sum of money is divided between three women A,B and C in the ration 2:3:5.If B receives £2.40 less than C, how much does each receive?

**Math**

OK that's what I thought but the textbook says the answer is p>13 which makes no sense. Thanks

**Math**

3P+(2-3P)>28 show work with answer please because I don't understand how to do this inequality.

**Calculus **

I seriously do not understand anything about this problem Please help. The equation of an ellipse centered at the origin is (x^2/a^2) + (y^2/b^2)=1 The area of the upper half of the ellipse can be determined by finding the area between the ellipse and the x-axis (y=O). The tot...

**Math**

yes

**Equation Help**

In our text book the following equation is given: P=(pm - p)g * R where P is the pressure drop R is the manometer reading pm is the density of the manometer fluid p is the density of the process fluid in the pipe g is the acceleration do due to gravity Then our professor told ...

**VBA EXCEL**

I was wondering I have 3 input boxes and with one of them I need the information put into this equation. What type of VBA CODE do I use to put this information in the equation is w=1/tp Where w is input frequency Tp is process time constant I know that I say dim w as single Di...

**Excel VBA **

Am confused for this class am taking we had to design serval procedures that do different things: 6 procedures were sine, cosine, cube, square, common log, and natural log. In order to get this values we had to design loops. I have done that but, our professor wants us to have...

**Math**

Use the definition of logarithm to simplify each expression. log6b(6b) log8b((8b)^6) log12b((12b)^-11)

**Math**

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.8 x10^2 µm. Find this earthquake's magnitude on the Richter scale.

**Mathematics**

After diving 92m below the sea level, the diver rises at a rate of 5 meters per minute for 7minutes. Where is the diver in relation to the surface?

**Please help-Math**

for 200 day... It ask what day in september is 200 days from March 3. Choices september 16, september 18, september 19, Seeptember 20.

**Please help-Math**

and could you help me with # 2, and #3.

**Please help-Math**

I have tried the rest. And the answers was wrong.Thats way I asked for help

**Please help-Math**

Please answer these problem for me.Thanks so much. 1. Border's Bookstore ordered 800 art books. On verifying the order, only 160 books were actually received. The percent of the order missing was: 2. The net price equivalent rate of 9/15/18 is: 3. If the net price of a sto...

**Temperature**

What is the Kelvin temperature for 30°C?

**Chemisrty**

Determine which law is appropriate for solving the following problem. What volume will 1.56 liters of a gas at 27°C and 745 mmHg of pressure occupy at 100°C and 700 mmHg of pressure? Law used: Boyle's Law Charles' Law Combined Gas Law

**vba excel**

Our teacher wanted us to set up a command button that gives 3 input boxes on city, state, and zip code. Next we are suppose to use a Boolean type and set a true or false setting depending on the zip code that's suppose to be 5 digits. Next we are to insert two message boxe...

**World History**

The world's oldest recognized monarchy is found in _____. a. Kush b. Egypt c. Nubia

**Geography**

I put "RESOURCES: yaho o" Then it said I am not allowed to post any links. And it just did it again, so I just now spaced the two o's.

**Geography**

Well, I tired to say where the resource came from but it won't let me!

**Geography**

1. How to become democratic. People aren't used to voting and being given a choice. They aren't used to political parties. They have lived in a country where people fight and struggle to get to the top, usually at the expense of others. They are skilled in edging out t...

**Eating disorder**

Kind of. Doesn't answer my question exactly, but that it is good information to know. So thanks. And I'll go check that out. :)

**Eating disorder**

Well, like most people who are "big", you usually don't see them wearing tiny clothes becaus they know for a fact that something that small wouldn't fit them. I think if I had an eating disorder, I wouldn't wear small clothes because then I would be worri...

**Eating disorder**

if anorexic people see theirselves as "fat" in the mirror, why do they still buy small sized clothing...?

**Physical Science**

Alpha decay. example type of radioactive decay, in which an atomic nucleus emits an alpha particle, and thereby transforms (or 'decays') into an atom with a mass number 4 less and atomic number 2 less. Many other types of decays are possible.

**Chemistry (PLEASE HELP ME)**

1. According to the phase diagram for water, how is the state of water determined? a. proceed up a vertical line at any given temperature b. read the phase at the intersection of any given temperature and pressure c. at a given pressure, proceed horizontally to the S-L or L-G...

**Algebra 1**

1. ◦1 Graph a single equation to see at a glance what the value of the equation is for many different points. An equation that shows how pressure varies with temperature becomes a lot more meaningful when it is graphed. By looking at the graph, you can instantly see what...

**Chem**

1. According to the phase diagram for water, how is the state of water determined? a. proceed up a vertical line at any given temperature b. read the phase at the intersection of any given temperature and pressure c. at a given pressure, proceed horizontally to the S-L or L-G ...

**Algebra 2**

I went to freemathhelp and this is what I got: *Not a conic section.

**math**

x/5 + y/6=5 2x/5 + y/3=-2 use sub method

**World History**

What major problem did the Roman Empire face in the mid to late Fourth Century? A. Immigration and invasion B. Lack of Education within the empire C. Weak leadership D. Poor infrastructure

**World History**

Of the four river valleys that supported major early civilizations, which one lost one of it's major rivers? A. Yellow River B. Mesopotamia C. Egypt D. Indus Valley

**VBA Microsoft Excel**

I have been on this problem for about 3 hours and I cannot solve it. My professor wanted us to make a command button with 3 input boxes ( I was able to do this part), but I'm suppose to design a boolean and select case that makes sure that a 5 digit number is entered in on...

**business law**

The Foreign Corrupt Practices Act of 1977.

**World History**

What is the Minoan civilization known for?

**Chemistry**

NaCl is made up of charged ions, which can interact with the dipoles present in the water molecules. I2 is held together by a covalant bond, neither atom is charged and they are not really attracted to water.

**math**

No problem!

**math**

64 - 9

**psychology**

Behaviorism.

**math**

Thanks for refreshing my memory, Writeacher.

**English ll**

Thannks, guys.

**English ll**

I dentify the complete adj. clause. 1. Many Californians who own homes live on hillsides. A: Who own homes live on hillsides. What word does the adj. clause modify? 3. I elected totake astonomy, which is not a required course. A: Astonomy 4. This course deals with facts that e...

**English II**

I dentify the complete adj. clause. 1. This course deals with facts that everyone should know. 2. Many Californians who own homes live on hillsides. What word does the adj. clause modify? 3. I elected totake astonomy, which is not a required course. 4. This course deals with f...

**Calculus**

Solve for x. Don't do the work using algebra and don't use a calculator. The Laws of Logarithms will be helpful. ln(x^2 - 1)= 3

**chem**

number of moles in 22.6g C3H7OH

**Math**

Choices are 7.421 7.3308 7.5555 7.3 7.49 7.65

**Math**

By default, your numerical entry is scored as correct if it is within 1% of the correct answer. A rule of thumb is always to enter at least 3 digits for numerical questions. If the correct answer is 7.48809, which of the following entries would be counted as correct? That is, ...

**Chemistry **

I am having a hard time solving this problem. The formula given is: T=Tin - (Tin - Tinit.)e(-v/v)t If the initial temperature Tinit is 115 (degrees F), the cold water temperature is 35 (degrees F) (1.7 degrees C), and the volume and volumetric flow rate are 3,000 liters and 30...

**Geometry**

What is the area of a rectangle with a length of 8 inches is 48 square inches. what is the perimeterof the rectangle?

**calculus**

is it C. or D.

**calculus**

Assume that x and y are differentiable functions of t. Find dy/dt using the given values. xy=x+4 for x=4, dx/dt=-5 a. 0.20 b. 3.75 c. 1.25 d. 5.00 e. -0.25

**Calculus**

The area of a circle is changing at a rate of 2 in.^(2)/sec. At what rate is its radius changing when the radius is 9 in.? a. (9/2)in./sec. b. (2/9)in./sec. c. (2/9pie)in./sec. d. (1/9pie)in./sec. e. (1/9)in./sec.

**Calculus**

C.

**Calculus**

Find (dy/dx) for the equation (7x+8y/9x-4y)=4. a. (dy/dx)=(-29/24) b. (dy/dx)=(43/24) c. (dy/dx)=(29/24) d. (dy/dx)=(-43/24) e. (dy/dx)=4

**Calculus**

Thanks, i thought it was B. your awesome.

**Calculus**

The number of people who donated to a certain organization between 1975 and 1992 can be modeled by the equation D(t)=-10.61t^(3)+208.808t^(2)-168.202t+9775.234 donors, where t is the number of years after 1975. Find the inflection point(s) from t=0 through t=17 , if any exist....

**calculus**

I will try but there is no diagram.

**calculus**

A power station is on one side of a river that is 0.5 mile wide, and a factory is 5.00 miles downstream on the other side of the river. It costs $15 per foot to run overland power lines and $23 per foot to run underwater power lines. Estimate the value of x that minimizes the ...

**algebra**

x/8-1/6=6

**Algebra 2 math**

What is the 32nd term of the arithmetic sequence where a1 = 12 and a13 = –60?

**Excel Problem**

the formula giving was T= Tin. - (Tin. - Tint.)e (-v/v) Where Tin = 1.7 degrees C and Tin is the to the temperature of the cold water flowing into the tank

**Excel Problem**

If the initial temperature is 115 F (46 degrees C), the cold water temperature is 1.7 (degrees C), and the volume and volumetric flow rate are 3,000 liters and 30 liters per minute, respectively, (a) Calculate the expected water temperature at 5-minute intervals for the first ...

**Chemistry**

How many milliliters of 5M H2SO4 are required to make a 1500ml of a .002M H2SO4 solution. I used the formula M*L=M * L so mL *5 = 1500 * .002 I got .6mL is this right?

**Chemistry**

Thank you DrBob222! For anyone else with the same problem here is how I did it following the above instructions d=1.24g/ml 1240g in 1L 1240g/342.3moles=3.6M

**UOP**

(1/15abc)*(5a^3b^5c^2)

**math**

Angles X and Y are congruent. Angle X has a degree measure of 15. What is the measure of angle Y?

**American History**

Put these in chronologica order according to their founding dates: U.S. Children's Bureau, FDA, National Park Service, American Legion, Federal trade commission

**Mathematics**

it has 6 sides

**chemistry 101**

What is the pH of a solution in which 296 mL of HCl g, measured at 28.0 C and 1.02 atm, is dissolved in 1.5 L of aqueous solution?

**chemistry**

296mL is the volume

**chemistry**

I plugged in all my numbers but I am still stuck on how to find n:moles

**chemistry**

What is the pH of a solution in which 296 mL of HCl measured at 28.0 C and 1.02 atm, is dissolved in 1.5 L of aqueous solution?

**Algebra**

A solar collector and its stand are in the shape of a right triangle. The collector is 5.00 m long, the upright leg is 2.00 m long, and the base leg is 4.58 m long. Because of inefficiencies in the collector’s position, it needs to be lowered by 0.50 m on the upright leg....

**physics**

A 2.0-kg wooden block slides down an inclined plane 1.0 m high and 3.0 m long. The block starts from rest at the top of the plane. The coefficient of kinetic friction between the block and plane is 0.35. What is the speed of the block when it reaches the bottom?

**Phil103 Informal Logic**

1 A 2 A 3 B 4 A 5 C 6 C 7 D YOU WILL HAVE FIGURE OUT THE OTHER 4.... BUT IF YOU GET THOSE 7 CORRECT YOU WILL MAKE A 70. BETTER THEN A ZERO.

**Phil103 Informal Logic**

1 A 2 A 3 B 4 A 5 C 6 C 7 D YOU WILL HAVE FIGURE OUT THE OTHER 4.... BUT IF YOU GET THOSE 7 CORRECT YOU WILL MAKE A 70. BETTER THEN A ZERO.

**Business-**

Thank-you!

**Business-**

Explain how these laws intertwine: Title VII of the Civil Rights Acct of 1964, Civil Rights 1991, Opportunity act 1972, Age Discrimination of 1967, Disabilities act, immigration reform and control act of 1986, Fair labor standards act Also explain how the number of employees i...

**Business**

Noncompliance as in company's not being in compliance. "Federal legislative laws" Title VII of the Civil Rights Acct of 1964, Civil Rights 1991, Opportunity act 1972, Age Discrimination of 1967, Disabilities act, immigration reform and control act of 1986, Fair l...

**Business**

Explain how the number of employees in the company affects the company's status if the company is not in compliance. Also explain how federal legislation laws intertwine.

**physics**

A motorcyclist is trying to leap across a canyon by driving horizontally of the cliff that is 70.0 m high at 38.0 m/s. Ignoring air resistance, use energy conservation to find the speed with which the cycle strikes the ground at a height of 35.0m on the other side of the canyo...

**Chemistry 111**

How many moles of methane are produced when 8206 moles of carbon dioxide gas react with excess hydrogen gas?

**Chemistry 111**

what is the molar mass of Butane,C7H10?

**Chemistry 111**

How many moles of nitrogen N are there in 71.0g of Nitrous Oxide(N2O)?

**Chemistry 111**

What is the mass of 7080 moles of magnesium chloride (MgCl2)?

**physics**

Calculate the quantity of heat required to raise the temperature of 2.00 g of water 4.00◦C.

**physics**

A system is provided 50 J of heat and work done on the system is 10 J. What is the change in internal energy

**Physics**

A spherical piece of metal has a radius of .250m and a mass of 503 kg. what is its specific gravity?

**physics**

A satellite explodes in outer space, far from any other body, sending thousands of pieces in all directions. How does the linear momentum of the satellite before the explosion compare with the total linear momentum of all the pieces after the explosion?

**physics**

Two identical cars have the same speed, one traveling east and one traveling west. Do the cars have the same momentum?

**physics**

thanks that wesite is very helpful

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