Friday

April 25, 2014

April 25, 2014

Total # Posts: 56

**science**

calculate the concentration for the reaction of 0.25mole 0f sodium hydroxide NaOH and water H20 solution of 250cm^3. Provide the answer in cubuc decimeter

**college algebra**

Write an equation of the line parallel to the line given by 3x-2y=8 and having the same y-intercept as the line given by 2y+3x=-4 (show work) I am stuck with this problem. Can you please show me how to do these types of equations? Thank you

**Physics**

A cylinder with a movable piston contains gas at a temperature of 27 degrees celsius, a volume of 1.50 meters cubed, and an absolute pressure of 0.200 X 10 to the fifth Pa. What will be its final temperature if the gas is compressed to 0.700 meters cubed and the absolute press...

**Calculus **

Find the local linearization of g(x)=sqrt 4x near x=2 use local linearization to estimate g(2.05) is your estimate too high or too low?

**Statistics**

The nicotine content in cigarettes of a certain brand is normally distributed with mean (in milligrams) μ and standard deviation σ = 0.1. The brand advertises that the mean nicotine content of their cigarettes is 1.5, but measurements on a random sample of 400 cigare...

**Statistics**

A simple random sample of 50 female 14-year-olds is selected. The sample mean height of the girls is found to be 62 inches. Assume the height of 14-year-old girls is normally distributed with a standard deviation of 5 inches. 1. Based on these data, a 95% confidence interval f...

**Math **

You have to wrap gift boxes for your club project. Each box is 4.5 inches wide, 7 inch long, and 4 inches tall. What size sheet of wrapping paper do you need to cut to cover the box? Gift wrap paper comes in sheets which are 30 inches wide and 36 inches long. How should you cu...

**math**

Can a forest that is 9/10 acre be divided into an even number of plots that are 1/7 acre? Explain how you know?

**Science**

By how much does the total partition function (excluding electronic) increase when 20 m^3 of Neon at 1.00 atm and 300 K is allowed to expand by 0.0010% at constant temperature?

**Chemistry**

Calculate the translational partition function for Ar confined to a volume of 1000 cm^3 at 298 K. At what temperature will the translational partition function of Ne be identical to that of Ar at 298 K confined to the same volume?

**chemistry **

5.00 grams of hydrogen is found to diffuse through an opening in 20.00 minutes. under the same conditions, how many grams of carbon monoxide would diffuse through the same opening in 20.00 minutes of time?

**algebra**

35 in class 7 more girls than boys how manyh girls and how many boys

**geometry**

20. D

**geometry**

20. D

**Physical Science**

Thats right!!

**Physics!!!**

How much heat does it take to raise 1.0 kg of lead from 0 degree celsius to 90 degree celsius?

**Physics**

How much heat does it take to raise 1.0 kg of lead from 0 degree celsius to 90 degree celsius?

**Physics**

How much heat does it take to raise 1.0 kg of lead from 0 degree celsius to 90 degree celsius?

**Physics!**

so 1*90*90?

**Physics!**

How much heat does it take to raise 1.0 kg of lead from 0 degree celsius to 90 degree celsius?

**Physics**

How much heat does it take to raise 1.0kg of lead from 0 degree celsius to 90 degree celsius

**Physics**

Your car has been setting out in the hot summer sun all day. The metal hood, the glass windshield, and the fabric upolstry are all at 180 degrees farenheit. If you touch the hood with your hand it could be burned, if you touch the windshield it will be very hot, if you touch t...

**Science/Physics**

Your car has been setting out in the hot summer sun all day. The metal hood, the glass windshield, and the fabric upholstry are all at 180 degrees farenheit. If you touch the hood with your hand it could be burned, if you touch the windshield it will be very hot, if you touch ...

**Science/Physics**

Your car has been setting out in the hot summer sun all day. The metal hood, the glass windshield, and the fabric upholstry are all at 180 degrees farenheit. If you touch the hood with your hand it could be burned, if you touch the windshield it will be very hot, if you touch ...

**physics**

drwls. I thank you again whoever you are. i owe you ten fold! you really help me out more than you can imagine!

**physics**

A 220lb worker loses 8 pounds of sweat during the day. All of the sweat evaporates. How much heat will he lose through evaporation? (Hint. Convert all measures to metric)

**physics**

I am quite amazed. I appreciate your help!

**physics**

if you take a 1 liter bottle of water out of the refrigerator at just above 0 celsius., how much heat will it take to raise the water to 90 celsius, so you can make tea out of it.

**chemistry**

For which salt in each of the following groups will the solubility depend on pH? Pb(OH)2 PbCl2 could you explain too? thanks!

**Physics**

A diver in Acapulco jumps off a 150 ft cliff. His forward motion is 10 feet per second. The base of the cliff at the waters edge extends 38 feet beyound the top edge of the cliff. Will the diver land in the water?

**MAT 7th GRADE**

2.-39

**Physics **

A diver in Acapulco jumps off a 150 ft cliff. His forward motion is 10 feet per second. The base of the cliff at the waters edge extends 38 feet beyound the top edge of the cliff. Will the diver land in the water?

**Physics**

Thanks a lot you are a genius

**Physics**

a 10 foot long teeter-totter pivots in the middle. a 50 lb boy sits on one end. Where must a 100 lb boy sit to balance the beam?

**science**

What would be the effect on satellites now in orbit if the earth stopped rotating

**math**

How many ways can a person select four books, two CDs, and one DVD from ten books, twenty CDs, and five DVDs?

**math**

Evaluate the function f(x) = -x2 + 5 for x = 4

**Physics**

38 cm is the amplitude

**statistics**

Let x be a random variable representing dividend yield of Australian bank stocks. We may assume that x has a normal distribution with sigma =2.3%. A random sample of 17 Australian bank stocks has a sample mean of x bar 7.74%. For the entire Australian stock market, the mean di...

**stats**

Let z be a random variable with a standard normal distribution, P(-1.9<=z<=2.1)

**statistics**

You draw two card from a standard deck of 52 cards and replace the first one before drawing the second. Find the probablity of drawing a 4 for the frist card and a 9 for the second card

**Christianity**

Okay so during and after the time of Jesus, it was okay for people to marry their relatives. People married their half sister or brother. Even in the 1500s royal families still married their relatives in England. So then how did the the law of not being able to marry close fam...

**AP Physics**

your doctor's scale has arms on which weights slide to counter your weight. these weights are much lighter than you are. explain how this works. does this relate to stress/strain?

**physics - linear momentum with rockets**

A rocket of total mass 3180 kg is traveling in outer space with a velocity of 115 m/s. To alter its course by 35.0 degrees, its rockets can be fired briefly in a direction perpendicular to its original motion. If the rocket gases are expelled at a speed of 1750 m/s, how much m...

**physics air bags**

The longer the impact time of an impulse, the smaller the force can be for the same momentum change, and hence the smaller the deformation of the object on which the force acts. On this basis, explain the value of air bags, which are intended to inflate during an automobile co...

**6th grade geography**

Where is the nearest river source to Bremerton, Washington?

**Science**

Have people gone near to the eaths crust?

**writing**

or english, i have to write a creative paper about the stuff weve gone over in class. we have read one flew over the cuckoos nest, and a few other short sotries. i was wondering what i should write about becasue im stumped. this ranges all the way from re writing a scene from ...

**Project Management**

That's what I was thinking. I just wasn't sure I understood the question correctly. Thank you very much.

**Project Management**

How can a project manager be sure that he or she has chosen the correct metrics to assess project performance?

**literary**

what is the literary term in this sentence. We will continue to work on grammer next week. I postponed our sceheduled test on subject-verb agreement until we got in a little more practice.

**social studies**

thanks so much.

**social studies**

need to unscramble this word, alshciirto pma it is a map,the definition is the map that shows information about past events and where they occurred.

**Chemistry**

I'm trying to find the dry gas pressure of H2 in mmHg. The barometric pressure is 765.3 mmHg, the vp of H20 is 23.76 mmHg and the gas collected was 25.6 mL. this is what i did. 765.3 mmHg - 23.76 mmHg - (25.6 Ml/13.6 mmHg) = 739.66 = 740 mmHg 93 sig figs). Then I have to u...

**science**

what are some of the advantages and disadvantages of genetic engineering? Since this is not my area of expertise, I searched Google under the key words "genetic engineering advantage" to get these possible sources: (Broken Link Removed) http://www.actionbioscience.or...

**science**

what are some of the advantages and disadvantages of genetic engineering? Genetic engineering allows thought to go into the design of genetic makeup, which is much faster than random mutation. Disadvantages? One has to try to explain it to the educationally disadvantaged.

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