# Posts by dEE

Total # Posts: 937

**Chemistry**

A 1.30-L sample of argon gas is at 1.02 atm and 21.5 degrees Celsius. a. what mass of argon is in the container. b. If the temperature is raised to 500 degrees celsius while the volume remains constant, calculate the new pressure, in stmospheres.

**chemistry**

a 55g aluminum block initially at 27degrees C absorbs 725J of heat. What is the final temp. I know I need to use the equation q=m*Cs*Delta T but I cannot figure out how to rearrange the equation to isolate Tf to get the answer. Thanks for any help.

**math**

I NEED HELP TO!!!!! SOMEONE PLEASE HELP!!!

**intermediate algebra**

a basketball player scores 35 times during a gam,e. he scored 57 total point 2 for each 2 point shot and one for each free throw how many two pint shots did he make and how many free throws did he make

**Algrebra**

substitution method 3x + y=12 8x-2y =4

**Math**

Find two numbers whose ratio is 4 to 3 and are such that the sum of their squares is 100.

**math**

an artist is going to an art fair. the artist will charge $20 for small prints $45 for large prints. the artist would like to sell twice as many small prints as large prints. the booth the artist is renting costs $510. how many of each size print must the artist sell in order ...

**4th grade math**

You can divide 108 into 324 to find the product of 324 x 4 324/108 = 3 or You can Multiply 3 x 108 = 324 to find the product of 324 x 4

**LATIN**

The new book will belong to the consul

**LATIN**

How do I say "belong to" in Latin?

**LATIN**

Thanks!

**LATIN**

Filio meo multi amici erunt I have trouble understanding what this means exactly. This is all I have as a literal translation My brother many friends there are/ they are

**Physics**

A 2000 kg car is slowed down uniformly from 18.0 m/s to 5.00 m/s in 4.20 s. (a) What average total force acted on the car during that time? (b) How far did the car travel during that time?

**latin**

English to latin translation needed. Friends, hurry to our house now.

**CHEM**

Thanks a lot :)

**CHEM**

9.60 g of hydrated nickel (II) sulfate is heated to produce 5.26 g of anhydrous compound NiSO4. Calculate the number of moles of anhydrous nickel (II) sulfate. Calculate the number of moles of water lost. What is the empirical formula of the hydrate?

**CHEM**

A sample of an unknown hydrate weighs 0.500 g and after heating it weighs 0.100. What is the percent of water in the hydrate?

**CHEM**

A 7.5 g sample of Cu(NO3)2.nH2O is heated. After the water has been driven off, 5.8 g of Cu(NO3)2 remains. What is the value of n in the empirical formula of this hydrate?

**math**

48 inches to 3 feet

**Chemistry**

Lab: Titration of NaOH (0.1 molar)to unknown solid acid. Trying to determine the equilivent weight of the unknown acid in the experiement. I am trying to figure out if I add too much base solution by accident to an unknown acid during titration would it affect the equivalent ...

**Business and Society**

In one paragraph, supported by evidence in your text and from other research, describe two forces that you believe shape the relationship between business and society. Provide two examples (one for each force you choose). Look for flaws and strengths in specific examples and ...

**skills for sucess**

Jenny has a part time job and her net take-home income is $2000 per month. She needs to allocate her funds to reflect a balanced monthly budget. Jenny's main categories of expenses include rent, utilities, and groceries.

**language**

what does word parts mean

**liberal arts**

Select the symbol below that fills in the blank to correctly complete the mathematical statement: 8.79 ____ 8.9

**math**

A race car can travel 3 laps in 10 minuets. How long would it take the race car to complete a 120 mile long race?

**hwwt**

why do paras have to document everything a child does?

**writing**

when you write a sentence, how do you know what a verb, adj.or conjuction is?

**Writing**

I missed my friends and lunch period.

**Early Childhood**

I think it could also be c

**math**

How do you solve this by elimination method? 4x+3y=016x+3=8y

**math**

where did you get the 0.34 from?

**English**

why wouldn't employees be paid or compensated for extensive overtime? Is the branch following eimployee contractual agreements and agency/branch policies? Is the Roanoke branch operating under different salary scales/schedules than others Phoenix offices?

**sciencedd**

dndndndd

**College Physics**

Some of us have tried everything (book and looking at notes), and still can't figure it out.>:( A formula and some pointers would really help, instead of asking some judgement questions!

**math**

An investor bought 150 shares of an airline.She paid $60 per share for 50 shares $50 per share for 60 shares $75 per share for 40 shares what was her average price per share

**physics**

Weight=mass x acceleration due to gravity W=mg W=(3.0kg)(9.81m/s^2) W=29.43 N

**Phsyical science**

What physical quantities are governed by the quantum numbers of an atomic electron?.

**algebra 1b**

Solve the problem by stating the equation you would use to solve and then solving it. After receiving discount of 12.5% on its bulk order of printer paper, johns office supply pays $3200 . what was the price of the order before the discount ? round to the nearest dollar. in

**early childhood literacy**

it would be model the correct language

**math**

help find the simple interest rate. Find the simple interst owed for the use of the money. Assume 360 days in a year. p=$4000, r=6%, t= 1year

**math**

help find the simple interest rate. Find the simple interst owed for the use of the money. Assume 360 days in a year. p=$4000, r=6%, t= 1year

**Math**

Help Homework : MaKE A TABLE:relate primeter and area Amaya has 24 inches of ribbon she can glue around the edge of a rectangular gift box lid. if she wants to use all the ribbon without any overlapping, what are the length and width of a gift box lid with the greatest area?

**Ant 101**

Modernization theory suggests

**Economics**

Provide an alternative explanation to the one given in the text for why isoquants cannot cross.

**Economics**

Marginal Cost (MC): $5 per unit Fixed Cost (FC): $20 Total Cost (TC): $25 Average Variable Cost (AVC): $5 FC is always going to be constant at $20; however, VC is the change in cost as an increase in cost of product to produce more.

**Economics**

2. Advertising can inform buyers, but sellers must incur costs to advertise. If so, advertising can result in higher prices to consumers. Does this mean advertising is economically inefficient? If not, explain how it can simultaneously create value and increase market prices.

**acc 100**

95,000

**math**

Ever wonder how much a house “actually” costs? Consider Alex and Sabrina who purchased a house with a selling price of $249,000.00. They managed to put 15% down and were approved for a 30-year conventional loan at 7% to cover the remaining $211,650.00. Their new ...

**Math**

Suppose Kevin and Jill both deposit $4000 into their personal accounts. If Kevin’s account earns 5% simple interest annually and Jill’s earns 5% interest compounded annually, how much will each account balance show at the end of 5 years? Calculate the difference ...

**math**

If 611 men at a conference comprise 65% of all people at the conference, how many people are at the conference?

**algebra 2**

b/3 + 6=82

**physics**

Di=DoF/Do-F Substitute values... Do=390 mm

**Math**

Maya bought a car for $15,000. To pay for it, she took a bank add-on interest loan at an annual interest rate of 9%. The loan term is 5 years. How much interest will she pay and what are her monthly payments?

**statistics**

Musical styles other than rock and pop are becoming more popular. A survey of college students finds that 48% like country music, 30% like gospel music, and 10% like both. What is the conditional probability (±0.01) that a student likes gospel music, given that he or ...

**chemistry**

5. How many moles of magnesium were consumed in the reaction? Open the Data window and click on the flask to provide evidence that this answer is correct. 6. Could this experiment be performed in the smaller 50 mL Erlenmeyer flask?

**Health/ Math**

A healthy amount of body for young men is 8 to 20 percent of body weight. Calculate the range of body fat, in pounds, for a young man who weighs 150 pounds and for a young man who weighs 185 pounds.

**Math**

If a food item weighs 120 grams and its composed of 77 grams of carbhydrates, 19 grams of fat, and 24 grams of protein, what is its total calorie count? Carbs and protein each provide each provide 4 calories per gram and fats provide 9. Thanks for all who will help.

**social statistic**

what is the z-score for a raw score if 89?

**math**

what's 60% of $47,000.00

**Economics**

how to calculate Qd=15.0-0.2P

**chemistry**

How many grams of sodium chloride, NaCl (fw 58.44), are required to prepare exactly 200 mL of a solution that is 600 ppm in sodium ions?

**physic**

A force of 12 N acts on an object of mass 10kg and moves it with a constant velocity across a floor. What is the coefficient of fiction between the object and the floor?

**Thanks Ms. Sue**

I'm going to read more about Robert Frost. He seemed to have jad quite a life. Thanks Again! Dee

**Cisco**

How many formula units are in .25 mole of Na O ? 2

**organic chemistry**

how do you propose a synthesis of a triphenylmethanol using a benzene, a formaldehyde,and any other inorganic reagents?

**MATH**

If $605 is invested in an account that earns 20.25%, compounded annually, what will the account balance be after 25 years? (Round your answer to the nearest cent.)

**MATH**

Find the cost of a home in 20 years, assuming an annual inflation rate of 4%, if the present value of the house is $285,000. (Round your answer to the nearest cent.)

**physics**

A 68.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.700 and 0.450, respectively. (a) What horizontal pushing force is required to just start the crate moving?

**Half-Life**

If the half-life of a radionuclide is 1 month, is a sample of it completely decayed after 2 months?

**math**

A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results are below. How many are not using any of the three? 35 said they drove alone. 24 rode in a carpool. 33 rode public transportation. 5 used both carpools and public ...

**math**

A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results are below. How many are not using any of the three? 35 said they drove alone. 24 rode in a carpool. 33 rode public transportation. 5 used both carpools and public ...

**physics**

An 845 N sled is pulled a distance of 180 m. The task requires 1.38 x 104 J of work and is done by pulling on a rope with a force of 122 N. The rope is held at _____° above the horizontal.

**Physics 2**

A 10 g bullet is fired into, and embeds itself in, a 2 kg block attached to a spring with a force constant of 19.6 n/m and whose mass is negligible. How far is the spring compressed if the bullet has a speed of 300 m/s just before it strikes the block and the block slides on a...

**physics**

Nuclei that has the same number of protons, but may contain diff number of neutrons.

**Science**

c thick carpet

**algebra**

(1-(1/x)) / (1-x) = ? please help i don't know what to do next.....

**Math**

-x=-20+3y x=20-3y 5(20-3y)+3y=40 100-15y+3y=40 100-12y=40 -12y=-60 y=5 -x-3(5)=-20 -x-15=-20 -x=-5 x=5 check -5-3(5)=-20 -20=-20 5(5)+3(5)=40 25+15=40 40=40

**math**

42/16 21/8

**Science**

Question... So then is it unnecessary to calculate the molar mass of the reagent.? Is only the molar mass of the product relevant to this question.?

**Health**

what are the legal consequences of using steroids illegally.

**math**

3x+9y=-9, -x-y=9

**statistics**

If a population has a standard deviation ó of 25 units, what is the standard error of the mean if samples of size 100 are selected?

**Statistics**

What is the confidence interval for c= 0.95 x = 5.3, s = 0.5 , and n =53

**statistics**

Find the area under the standard normal curve for the following: (A) P(z < -1.80) (B) P(-1.93 < z < 0) (C) P(-0.17 < z < 2.05)

**Accounting**

how and what do I post from the cash receipts journal to the general journal

**statistics**

0.99

**Physics**

Gas is confined in a tank at a pressure of 11 ATM and a temperature of 25 degree Celsius. If 2/3 of the gas is withdrawn and the temperature is raised to 75 degree Celsius, what is the new pressure in the tank?

**Sentence**

Her

**statistics**

e Chebyshev’s theorem to find what percent of the values will fall between 226 and 340 for a data set with a mean of 283 and standard deviation of 19.

**statistics**

Why should we check if your data is binomial?

**statistics**

give an example where the median would be less than the mean.

**statistics**

given 100,90,80,75,70,60,30,25,5,4 what score corresponds to the 70th percentile?

**social and criminal justice**

Hello I have a 2 to 3 page paper due on Monday 11/14, 2011 and I am having trouble finding good reliable information to complete the assignment. The instructions are to: Prepare a paper identifying at least three changes expected in the field of criminal justice over the next...

**math**

relative frequency distribution

**math**

a rectangular table measures 3/5 of a meter long by 1/7 of a meter wide. what is the area

**Algebra II**

b/3 + 6=82

**Physics**

a student attaches a mass to the end of a 0.80 m string. The system will be whirled in a horizontal circular path at 31.5 m/s. The maximum tension the string can withstand without breaking is 250 N. What is the maximum mass the student can use?

**physics**

a jet plane flying at 550 m/s makes a curve. The radius of the circle in which the plane is flying is 9.0 X 10^3 m. What centripetal acceleration does the plane experience? Express this acceleration relative to g, the acceleration due to gravity.

**Physics**

The average distance separating earth and moon is 384000 km. What is the net gravitational force exerted by earth and moon on a 3.00 * 10^4 kg spaceship located halfway between them.

**Physics**

A vehicle is travelling at 25.0 m/s. It brakes provide an acceleration of -3.75 m/s^2[forward]. What is the driver's maximum reaction time if she is to avoid hitting an obstacle 95.0 m away? the answer is a number less than 0.5 second. can you tell me the exact number and ...