Friday

January 20, 2017
Total # Posts: 1,324

**math**

i don't get this explain please. k

*February 23, 2011*

**Physics/ electricity**

Isn't it just suppose to be 9.3nc instead of 29.3nC?

*February 22, 2011*

**Physics/ electricity**

Consider a square of side length a = 9.7 cm with charged particles at each of the corners. Three of the particles carry +9.3 nC of charge while the fourth particle carries -9.3 nC. In volts, what is the electric potential at the center of the square? Hint: Choose the potential...

*February 22, 2011*

**math**

solve by elimination 5x+3y+5z=-16 2x+5y-z=-26 x-4y+2z=10

*February 19, 2011*

**English**

hah, i agree with kat. its something to do with chocolate that's all im gonna say...

*February 18, 2011*

**English**

*high fives kat*

*February 18, 2011*

**english**

On Monday April 23, 2012 at approximately 6:15 pm I Officer John Doe received a radio call to 1630 Featherstone Ave, Auburn Hills, Michigan 48326 in reference to a domestic violence call. Upon my arrival at the call location I was met at the door by the caller Rose Smith who ...

*February 15, 2011*

**Accounting 280**

E15 1

*February 14, 2011*

**chemistry**

As you saw in Part B, the vapor above the cyclohexane-acetone solution is composed of both cyclohexane vapor and acetone vapor. What mole fraction of the vapor above the solution, X(cy) vapor), is cyclohexane?

*February 8, 2011*

**chemistry**

A 20mg sample of a compound is dissolved in 5.0 mL of water and extracted with 2.5 mL of heptane. After seperation of the layers, the heptane layer is found to contain 15 mg of the compound. What is the partition cofficient of the compound, K(hept/water)

*February 7, 2011*

**chemistry**

A 20mg sample of a compound is dissolved in 5.0 mL of water and extracted with 2.5 mL of heptane. After seperation of the layers, the heptane layer is found to contain 15 mg of the compound. What is the partition cofficient of the compound, K(hept/water)

*February 7, 2011*

**Physics**

Hello, I have e problems with dis question A harmonic wave on a string moves along the x-axis according to: (x,t) =5.0 (cm) sin[ (2.5m^-1) x - (63s^-1) t ] At x = 1.0 m when t = 2.2 s the speed of the oscilations on the string is closest to ... me thought that you can just ...

*January 26, 2011*

**Chemistry**

If an Alka-Seltzer tablet has a mass of 4.953 g, and an Erlenmeyer flask containing an HCl and water solution weighs 160.351 g, what is the percent by mass of NaHCO3,in the tablet if the Erlenmeyer flask and its contents weigh 164.027 g after reaction? Please include the ...

*January 25, 2011*

**math**

In 2001, Windsor, Ontario received its maximum amount of sunlight, 15.28 hrs, on June 21, and its least amount of sunlight, 9.08 hrs on December 21. a. Due to the earth’s revolution about the sun, the hours of daylight function is periodic. Determine an equation that can ...

*January 23, 2011*

**Math**

State domain, range, period, vertical asymptotes, zeros, symmetry and y-intercept of y = -2tan(3x + 180) + 3

*January 22, 2011*

**Math**

Describe how the graph of y + 3 = 2sin(3x + 90) compares to the graph of y = sin(x)

*January 22, 2011*

**Organic Chemistry**

Thanks! and you do mean that it is 0.0123 moles, therefore I would plug in 3 for M, and 0.0123 for moles so that implies 3 x L = 0.0123 --> 0.0123/3 = L = .0041 L ~ 4.0mL ?

*January 20, 2011*

**Organic Chemistry**

I realize this is a general chemistry stoichiometry question, however I can not fully grasp it. I am supposed to calculate the theoretical amount (volume) of 3M sodium hydroxide (NaOH) needed to convert 1.5g of benzoic acid to its salt. I got 0.012 moles of bezoic acid present...

*January 20, 2011*

**Chemistry**

The format came out wrong - the double bond of oxygen to carbon occurs at the first apex.

*January 20, 2011*

**Chemistry**

Hi I hope you can understand this...the Na ion is attached to the oxygen using ionic bonding. The \/ are meant to symbolize the hydrocarbon chain. The || is a double bond that bonds oxgen to carbon. O || Na O/\/\/\/\/\/ + CaCl2 -> ? + NaCl To give you some background, it ...

*January 20, 2011*

**pre-algebra**

can you please help me find the common denominater to this problem? n+2/3=1/9

*January 13, 2011*

**math**

help find common denominator

*January 13, 2011*

**math**

n+2/3=1/9

*January 13, 2011*

**math**

are you there?

*January 13, 2011*

**math**

how do you find the common denominator

*January 13, 2011*

**math**

n+2/3=1/9

*January 13, 2011*

**math**

4=4/9+y

*January 13, 2011*

**math**

Solve Equation by Adding or Subtract fraction using Addition property of Equality or Subtraction property of equality. x-5/6 = 1/10

*January 13, 2011*

**dressmaking**

Mrs. Shotto was once one of your regular customers, but she hasn't asked to have any garments made in approximately one year. You note she has lost weight. She would like you to make her a special silk blouse to replace a favorite blouse that has worn out. The blouse has ...

*January 12, 2011*

**Business finance**

10.38

*January 10, 2011*

**Iron and Sulphur reaction**

I don't know

*January 10, 2011*

**chemistry**

what volume will 5.00g of dinitrogen oxide gas occupy at 50.0 degrees celcious and 12.0 atmosphere

*January 10, 2011*

**chemistry**

what is the mass of 250.0 ml gas at 25 degrees celcious at 0.359 atmosphere

*January 10, 2011*

**chemistry**

what is the density of methyl gas at 25 degrees celcious and 1.50 atmosphere.

*January 10, 2011*

**calc**

forget it :) i figured it out! thanks!!!!

*December 29, 2010*

**calc**

i just looked at it and tried to figure it out but i just don't get it. in the example you gave me there was already a rate that the air was being pumped, but in mine there is none. it's asking for the rate. I just don't get it

*December 29, 2010*

**calc**

im so confused :( Willie Makit blows up a spherical balloon. He recalls that the volume is V=4/3Pi*r^3. In order for the radius to increase at 2cm/sec, how fast must Willie blow air into the balloon when the radius is 3 cm?

*December 29, 2010*

**organic chemistry**

Ferrocene cannot be nitrated using the conventional HNO3-H2SO4 mixed acid conditions, even through nitration is an electrophilic aromatic substitution reaction. EXplain.

*December 29, 2010*

**organic chemistry**

In the formation of diacetylferrocene, the product is always the one in which each ring is monoacetylated. Why is no diacetylferrocene produced in whcih both acetyl group are on the same aromatic ring?

*December 29, 2010*

**organis chemsitry**

what is the main structural feature of the azo dyes that causes them to be colored compounds.

*December 29, 2010*

**Organic chemistry**

1. In in experiment, sodium bisulfite solution is added at the end in order to destroy the unreacted bromime. What reaction is occuring here? Is HSO3- acting as an oxiding or reducing agent? Write a balanced equation as part of your answer.

*December 29, 2010*

**Organic Chemistry**

If 3-bromo-1-propanol is treated with NaOH, a compound of molecular formula C3H6O is formed. suggest a structure for this product.

*December 29, 2010*

**physics**

Please help me to solve this problem about electic potential : An electric car accelerates for 7.0 s by drawing energy from its 290-V battery pack. During this time, 1200 C of charge pass through the battery pack . Find the minimum horsepower rating of the car.

*December 19, 2010*

**physics**

Please help me to solve this problem about electic potential : An electric car accelerates for 7.0 s by drawing energy from its 290-V battery pack. During this time, 1200 C of charge pass through the battery pack . Find the minimum horsepower rating of the car.

*December 19, 2010*

**physics**

A car starts from rest accelerates with a constant acceleration of 1.5 m/s squared. HOw far does the car move in 4 seconds?

*December 10, 2010*

**math**

What does a snowflake have to do with math?

*December 1, 2010*

**statistics**

A newspaper survey found that 65% of readers found online tutorials useful. If a random sample of 9 readers is selected, compute the standard deviation of the probability distribution.

*December 1, 2010*

**social studies**

think and review and crossword for week 13

*December 1, 2010*

**sewing**

What is a wood clap used for in sewing ? thank you

*November 30, 2010*

**Math**

$102,400

*November 23, 2010*

**PLEASE HELP. physics**

For A- m1v1 = m2v2 (.015kg + .25kg)V = .015kg + 200m/s v = 11.3m/s (1/2)mv^2 = mgh so h=(1/2)(v^2)/g h = 6.5m

*November 21, 2010*

**sociology**

How can the three sociological perspectives (e.g., social functionalism, social conflict, and symbolic interaction) be used to conceptually understand social deviance?

*November 20, 2010*

**Physics**

2T=(2*pi*massproton)/(chargeproton*B) So a) B=(pi*1.67*10^-27)/(1.6*10^-19*155*10^-9) b) Doubling the kinetic energy changes the velocity. Period T does not depend on velocity so the answer is 155 ns.

*November 17, 2010*

**Physics**

lift.

*November 14, 2010*

**chemistry**

SCl2= sp3 SCl6= sp3d2 SCl4= sp3d

*November 6, 2010*

**math pleaseee help!!!!!!!!!!!!**

what is the best parking space/shortest that would take the from store 1 to store 2 and back to the car?use the following information: -the distance between store 1 to store 2 is 25 yds wide. -driveway between the sidewalk and parking lot is 10 yds this all they give me please...

*November 4, 2010*

**college**

be used to conceptually understand multiculturalism?

*November 3, 2010*

**calculus**

Let A be the bounded region enclosed by the graphs of f(x) = x , g(x) = x3 . Find the volume of the solid obtained by rotating the region A about the line x + 2 = 0.

*October 31, 2010*

**math**

how long was the dolphin show? the number of minutes is between 40 and 60. the tens digit is one less than the ones digit. the number has 4 tens. what is the answer

*October 31, 2010*

**HCR/230**

Thank you so much..but have already checked those and they did not help..

*October 28, 2010*

**HCR/230**

I do not understand it...and my book does not help. I have looked through my book on more then one occasion and can not figure out how to answer them. So could u ever be so kind to help me in the right direction.

*October 28, 2010*

**HCR/230**

What are the basic elements of an effective medical office financial policy? In what ways do medical office procedures support financial policies? What are the consequences when office procedures do not support the financial policy? What recommendations, strategies or tools ...

*October 28, 2010*

**math**

i need help that's why im on this sight because im trying to find the answer! urghh

*October 27, 2010*

**9th grade math**

suppose u invested some money at 8% simple interest for five years. if u received $500 in interest, how much money did u invest?

*October 26, 2010*

**9th grade math**

suppose you invested $1200 for four years. you earned $312 in simple interest. what is the interest rate?

*October 26, 2010*

**9th grade math**

you invest $1500 for three years.find the amount you earn at an annual rate of 8.25%

*October 26, 2010*

**math**

at a local grocery store, the bananas they receive are transported through three stages: from the farmer to the market, from the market to the wholesaler, and from the wholesaler to the grocery store. at each stage, the price of the bananas increases by 20% of the previous ...

*October 25, 2010*

**Math PIZZAZZ**

I need help on how to do the problem like the actual work to get the answer

*October 25, 2010*

**Maths**

Divide $4000 to Kimand Dan in the ratio 3:5 How much money will each have?

*October 21, 2010*

**Math**

ok so you have 23 = 1-d If you are looking for d than you have to get d by itself. To do this you can do it one of two ways. you can add D to both sides to get rid of the negative d (b/c you are looking for positive d). this would leave you with 23+d=1 then to get d by itself ...

*October 19, 2010*

**Math**

if you are solving for d then all you have to do is subtract both sides by one and then divide by a negative d= -22 or add d to both sides and subtract 23 either way works

*October 19, 2010*

**Physics**

Utexas? I hate it too =(

*October 16, 2010*

**math**

the answer is 13

*October 11, 2010*

**4th grade**

On the average your heart beats about 72 times per min. At this rate, about how many times will it be 30 days in a year in your lifetime if you live to be 72?

*October 11, 2010*

**physics**

A 60 kg skier with an initial speed of 12 m/s coasts up a 2.5 m high rise that makes a 35 degree angle with the horizontal. If the coefficient of friction between the skis and the snow is .08, find the speed of the skier when he reaches the top of the rise. How much work does ...

*October 9, 2010*

**3rd grade math (array)**

what is the aweser to this

*October 7, 2010*

**social studies**

whats the effect on climate for these listed below?: sun and location wind water mountain

*October 6, 2010*

**math**

1,3,6,10,15....

*September 30, 2010*

**9th grade**

If a 300 N action force is exerted to the right, the reaction force will be ___.

*September 23, 2010*

**english ")**

a sentence that use a context clue and the word serene!!

*September 22, 2010*

**chemistry**

6 Mols of NO_2 This is due to there being 8 mols in the theoritical yeild and using the % yeild formula. Sorry I'm not too sure how to explain how I did this.

*September 20, 2010*

**en**

Many students mistakenly believe that anything that appears in print must be a fact. Especially in textbooks.

*September 12, 2010*

**biology**

WHAT CHARGE ARE PROTONS

*September 7, 2010*

**physical science**

A 50 kg crate is lifted to a height of 10 meters.How much potential energy does the crate have begin lifted?

*September 7, 2010*

**Statistics**

Using a Z-value of 2.575, the answer is 238.7; or 240 if the answer is in multiple choice form.

*September 5, 2010*

**physics (last problem)help**

above answer is not correct

*September 3, 2010*

**M**

My hw says explain why the plot u plotted is correct in between 2 n 3 there are 3 lines and you want to get 2 n 1/6 so I plotted the line between 2 and the line after that can u explain how I'm right ???

*August 31, 2010*

**hrm 240**

so like some disadvantages for internal would be if you don't have a job at bank you can't get job. and advanges would be if you are a employee you have a good chance for the job.

*August 19, 2010*

**hrm 240**

My assignment is write and post a minimum of 350 words checkpoint naming one internal and three externak ways that you could recruit for the job in your final project. What are the advantages and disavantages of each recruit method for the job? I chose bank manager for my ...

*August 19, 2010*

**hrm 240**

need help it says to naming one internal and three extrnal ways that i could recruit for the job the job i chose is bank manager and what are the advantages and disadvantages to this is? what i want to know is what is internal and external ways?"

*August 19, 2010*

**medical**

i really feel it is d.negligence

*August 14, 2010*

**Math**

You have a wire that is 35 cm long. You wish to cut it into two pieces. One piece will be bent into the shape of a square. The other piece will be bent into the shape of a circle. Let A represent the total area of the square and the circle. What is the circumference of the ...

*August 8, 2010*

**Algebra**

Five-Sixths of a number is -60. What is the number?

*August 7, 2010*

**Pre calc**

Haha thank you so much I feel so stupid haha

*July 30, 2010*

**Pre calc**

Vector A has magnitude 23 units and direction, counterclockwise from east, of 5.8 degrees. What is the value of its x component to 1 decimal place? Its y component? This problem seems easy enough but I keep getting the wrong answer using the law of sines. Is there another way ...

*July 30, 2010*

**Algebra**

Order of opperations or PEMDAS. Parenthasis, exponents, multiply, divide, add, subtract. In that order. For this problem, an exponent is inside of parenthasis. So if you want to solve the parenthasis first, you need to solve the exponent then multiply by 5 and then subtract by...

*July 29, 2010*

**Physics check**

A speeder traveling at 41 m/s passes a motorcycle policeman at rest at the side of the road. The policeman accelerates at 3.3 m/s2. To the nearest tenth of a second how long does it take the policeman to catch the speeder? Im sorry I am new to physics this is my first year and...

*July 13, 2010*

**Physics**

How far to the nearest tenth of a meter can a runner running at 11 m/s run in the time it takes a rock to fall from rest 90 meters?

*July 13, 2010*

**Physics**

Im sorry I am new to physics this is my first year and I still have no idea what to do for this problem. The other two that you answered I had them correct before you answered them and was using it as a check. When I reworked them your way, I got the same answer. However on ...

*July 13, 2010*

**Physics**

A speeder traveling at 41 m/s passes a motorcycle policeman at rest at the side of the road. The policeman accelerates at 3.3 m/s2. To the nearest tenth of a second how long does it take the policeman to catch the speeder?

*July 13, 2010*