Friday

September 30, 2016
Total # Posts: 37

**Physics**

A lady applies makeup using a concave mirror with a focal length of 10 cm. At a distance of 6 cm from the mirror, how large does her 4 cm wide eye appear? Solve mathematically

*May 20, 2013*

**Social Studies**

The Bush and Adams families are not the only families from which related U.S. presidents have come. Which family boasts grandfather-grandson presidents? 1. Harrison 2. Lincoln 3. Madison 4. Roosevelt

*February 25, 2013*

**Chemistry**

If you could try doing my problem, see if you can get a different answer... I used most of my submissions already and I really don't know what I have been doing wrong.

*December 15, 2012*

**Chemistry**

I did the same, and I get the answer of 2.127 hours which is wrong... So I don't really know what to do. In that problem you got to do this J = -D dc/dx D = 4.9 x 10-9 dc = 0.31 dx = 3.091 x 10-4 Then, after you get your answer, multiple by the surface area (which in your ...

*December 15, 2012*

**Chemistry**

You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 243.0 ppm and is initially uniform through the thickness of the steel. The atmosphere of...

*December 15, 2012*

**physics**

If Joe weighs 100N on the moon how much will Joe weigh on earth? N & kg

*October 31, 2012*

**Chemistry**

How many moles of CaCl2 are in 32cm cube of 0.2M solution of CaCl2?

*October 4, 2012*

**SCIENCE**

Unit of measure for the international system of measurement-what unit is used for temperature, mass, volume, and length? please answer :) I NEED TO STUDY AND HAVE A QUIZ TOMORROW

*September 9, 2012*

**Statistics **

Suppose that out of 15,351 convicts who escaped from U.S. prisons, only 7667 were recaptured. Let p represent the proportion of all escaped convicts who will eventually be recaptured. Find a point estimate for p. Round your answer to four decimal places.

*July 8, 2012*

**Statistics **

Total plasma volume is important in determining the required plasma component in blood replacement theory for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that sample of 61 male firefighters are ...

*July 7, 2012*

**Physics**

Hey Chad, check out this answer sheet and it might help you! Go to google and copy and paste your question. A link to a Answer Key pdf file will pop up and it has a lot of good answers to well over a hundred questions.

*July 7, 2012*

**Statistics **

What price do farmers get for their watermelon crops? In the third week of July, a random sample of 51 farming regions gave a sample mean of = $7.08 per 100 pounds of watermelon. Assume that is known to be $1.80 per 100 pounds. Find a 99% confidence interval for the population...

*July 7, 2012*

**Statistics**

I think it is true.

*July 7, 2012*

**Statistics **

True or false? If the original x distribution has a relatively small standard deviation, the confidence interval for will be relatively short. Answer True False

*July 7, 2012*

**Statistics **

True or False? As the degrees of freedom increase, the Student's t distribution becomes more like the standard normal distribution. Answer True False

*July 7, 2012*

**Statistics **

In the third week of July, a random sample of 61 farming regions gave a sample mean of = $6.88 per 100 pounds of watermelon. Assume that is known to be $1.72 per 100 pounds. A farm brings 30 tons of watermelon to market. Find a 98% confidence interval for the population mean ...

*July 7, 2012*

**Statistics **

Answer the question Yes or No. Sam computed a 90% confidence interval for from a specific random sample of size n. He claims that at the 90% confident level, his confidence interval does not contain . Is this claim correct? Answer a. No b. Yes

*July 7, 2012*

**Statistics **

What price do farmers get for their watermelon crops? In the third week of July, a random sample of 52 farming regions gave a sample mean of = $6.68 per 100 pounds of watermelon. Assume that is known to be $1.94 per 100 pounds. A farm brings 35 tons of watermelon to market. ...

*July 7, 2012*

**Statistics **

Total plasma volume is important in determining the required plasma component in blood replacement theory for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that sample of some male firefighters ...

*July 7, 2012*

**geometry**

the volume of a cube is 125 cm3. What is the length of each side?

*February 8, 2012*

**game theory**

Consider the following game. Player 2 L R U 6, 1 ........8, 3 Player 1 UM 4, 9........8, 4 DM 7, 2 ............6, 9 D 5, 4...........9, 3 (a) Is there a mixed strategy Nash equilibrium in which player 1 is placing positive probability only to strategies DM and D? If yes, what ...

*February 14, 2011*

**physics**

Diego pulls a 4.5 kg sled across level snow with a force, F, of 230 N on a rope that is 35.0° above the horizontal. If the sled moves a distance of 63.3 m, how much work does Diego do?

*January 4, 2011*

**physics**

Two spheres are placed so that their centers are 2.9 m apart. The force between the two spheres is 2.60 multiplied by 10-12 N. What is the mass of each sphere if one sphere is twice the mass of the other sphere?

*December 11, 2010*

**chem**

Carbon monoxide is detected in air samples by its reaction with diiodine pentoxide to form carbon dioxide and elemental iodine: CO+I2O5 --> CO2+I2. Balance the equation.

*January 5, 2010*

**chem**

If 5.35 g of KMnO4 are dissolved in a liter of solution, what is the normality of the solution?

*January 5, 2010*

**accounting**

Please help in verifying stakeholders? This is for my Final in my Accounting Ethics Class. I do NOT want you to write the paper. I do NOT want you to do the analysis needed for this paper. I just want help verifying the stakeholders in the scenario. I believe the stakeholders ...

*September 6, 2009*

**Math Calculus**

This is all about the intermediate value theorme.. You wish to visit you sweetheart, but you don't want to go all the way over to their house if your sweetheart isn't home. What sort of "existence proof" could you do beforehand to decide whether it is ...

*September 24, 2008*

**Math Calculus**

The Image Theorem: The image theorem, a corollary of the intermediate value theorem, expresses the property that if f is continuous on the interval [a, b], then the image (the set of y-values) of f on [a,b] is all real numbers between the minimum of f(x) on [a,b], inclusive. ...

*September 24, 2008*

**Algebra**

Forgot this part to the first desperate What is the slope and y-intercept of the line in part b? How do you know?

*February 15, 2008*

**Science**

Would the molecules move faster or slower in syrup?

*February 6, 2008*

**URGENT Needs Physics Help**

Ok, so I am doing this paper on the physics mistakes in Willy Wonka and the Chocolate factory. To prove that the everlasting gobstopper defies the laws of physics, I wanted to use Zeno's paradoxes to do so. But are his paradoxes correct? There are theories online that say ...

*December 16, 2007*

**game theory**

Consider the following game. Player 2 L R U 6, 1 8, 3 Player 1 UM 4, 9 8, 4 DM 7, 2 6, 9 D 5, 4 9, 3 (a) Is there a mixed strategy Nash equilibrium in which player 1 is placing positive probability only to strategies DM and D? If yes, what is the equilibrium? If no, show why...

*September 10, 2007*

**Algebra**

Multiply(x-2)(x+2) X^2 - 4

*June 3, 2007*

**chemistry**

thanks for helping me with the list. By checking the product's labels I'm finding many of the substances the problem now is that i found a product with hydrocarbon in it but I do not know how to figure out if its molecular mass is greater than 100g/mol what is the name...

*February 4, 2007*

**chemistry**

Hi you guys please help me with my chemistry homework, i need to find all these items and take them to my class in a ziploc bag *a hydrocarbon with a molecular mass greater than 100g/mol *2 porpanol *an aromatic compound(not the common usage of "aromatic" the ...

*February 4, 2007*

**urgent**

hey you guys I post a question like five hours ago and I would like to know if there is at least a website in were I could get help or something Post your question again. That way it'll get to the top of the list. That's what I always do. Your original post listed ...

*February 4, 2007*

**Chemistry**

Hi you guys please help me with my chemistry homework, i need to find all these items and take them to my class in a ziploc bag *a hydrocarbon with a molecular mass greater than 100g/mol *2 porpanol *an aromatic compound(not the common usage of "aromatic" the ...

*February 4, 2007*

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