Thursday

October 30, 2014

October 30, 2014

Total # Posts: 1,999

**Physics**

A stone is thrown vertically upward at a speed of 27.70 m/s at time t=0. A second stone is thrown upward with the same speed 2.140 seconds later. At what time are the two stones at the same height? At what height do the two stones pass each other? What is the downward speed of...
*December 17, 2013*

**physics**

A stone is thrown vertically upward at a speed of 27.70 m/s at time t=0. A second stone is thrown upward with the same speed 2.140 seconds later. At what time are the two stones at the same height? At what height do the two stones pass each other? What is the downward speed of...
*December 15, 2013*

**Algebra **

A roadside vegtable stand sells pumpkins for $5 each and squashes for $3 each. One day they sold $6 more squash than pumpkins, and their sales totaled $98. Write and solve a system of equations to find how many pumpkins and squash they sold?
*December 10, 2013*

**Chemistry**

In a solution with carbon tetrachloride as the solvent, the compound VCl4 undergoes dimerization: 2VCl4 <-> V2Cl8 When 6.6834 g VCl4 is dissolved in 100.0 g of carbon tetrachloride, the freezing point is lowered by 5.97*C/ Calculate the value of the equilibrium constant ...
*December 10, 2013*

**21**

help me 9th gradge
*December 4, 2013*

**math**

45yards/minutes=______in./s
*December 2, 2013*

**PRE-ALGEBRA**

A 55-minute long distance phone costs 2.75.What is the cost per minute
*December 2, 2013*

**Math help, anyone?**

Solve the proportion. Where necessary, round to the nearest hundredth. Plz help i really need 2 get this in!! 11. 9/10 = x/10 9 *** 90 10 100 12. x/4 = 6/7 168 0.21 28 3.43 13.Write the ratio as a fraction in simplest form. 22:36 14. Write the ratio as a fraction in simplest ...
*November 26, 2013*

**Biology**

What do you think, is it likely that we will insert genes for new and better properties in humans? Is it desirable? What dangers can you see with such a development?
*November 26, 2013*

**Plz help :(**

Mrs. Sue plz help!!!
*November 25, 2013*

**Science**

Luis wanted to create a clay model of earth and the sun. To show how Earth rotates, Luis wants to use a toothpick to represent Earth's axis of rotation. Where should Luis place the toothpick? A. Horizontally through Earth in the direction Earth is traveling B. Vertically ...
*November 20, 2013*

**US History**

What times is Paine referring to? “These are the times that try men's souls. The summer soldier and the sunshine patriot will, in this crisis, shrink from the service of their country; but he that stands it now, deserves the love and thanks of man and woman."
*November 16, 2013*

**US History **

What is Patrick Henry referring to when he states : "Their clanking may be heard on the plains of Boston"?
*November 14, 2013*

**US History**

What does Patrick Henry mean when he writes "Shall we acquire the means of effectual resistance, by lying supinely on our backs..."
*November 14, 2013*

**US History**

thanks again
*November 12, 2013*

**US History**

What is Thomas Jefferson trying to say in this excerpt from the Declaration of Independence ? :The Right of the People to Control Their Government . . . We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain...
*November 12, 2013*

**US History**

thank you so much i was having problems because i dont speak the way that he speaks but thank you so much
*November 12, 2013*

**US History**

What does this excerpt from Common Sense by William Paine mean: But there is another and greater distinction for which no truly natural or religious reason can be assigned, and that is, the distinction of men into KINGS and SUBJECTS. Male and female are the distinctions of ...
*November 12, 2013*

**Physics**

n,bhyguftchg vb
*November 12, 2013*

**Business**

$1,604,505
*November 5, 2013*

**math**

Slope intercept form is y=mx+b m- slope b- y-intercept To finish this problem, you have to find what the y-intercept is. Just put in what you know first, and try to figure out b. 3=4(-3)+b 3= -12 =b +12 +12 15=b You can know see that 15 is b, and you can fill in the slope ...
*November 4, 2013*

**5TH GRADE Math**

To find the common factor of something, you have to post all the factors of each number. For #1 you would do: 1- 1 4- 1, 2, 4 8- 1, 2, 4, 8 32- 1, 2, 4, 8, 16 Obviously the first one is 1. A easy way to find the common factor of these questions, is simply by seeing the first ...
*November 3, 2013*

**Organic Chemistry**

3.What would be the major product if 1,4-dibromo-4-methylpentane was allowed to react with: a)One equivalent of NaI in acetone? b)One equivalent of Silver Nitrate in ethanol?
*November 1, 2013*

**Science**

how does energy provided by the sun influence global weather patterns?
*October 26, 2013*

**Science**

thank you!
*October 26, 2013*

**Science**

How is earth like a system?
*October 26, 2013*

**english**

Which one of the following sentences is correctly punctuated? A. Look up, look down, and look all around? B. Smile when you say that, Partner? C. When will the winter end? D. Look at me, then say what you have to say?
*October 20, 2013*

**math**

Do the math your selves you K12's!
*October 15, 2013*

**Science**

Calculate the amount of energy in the form of heat that is produced when a volume of 3.56 L of SO2(g) is converted to 3.56 L of SO3(g) according to this process at a constant pressure and temperature of 1.00 bar and 25.0 °C. Assume ideal gas behavior.
*October 15, 2013*

**chemistry**

Calculate the amount of energy in the form of heat that is produced when a volume of 3.56 L of SO2(g) is converted to 3.56 L of SO3(g) according to this process at a constant pressure and temperature of 1.00 bar and 25.0 °C. Assume ideal gas behavior.
*October 15, 2013*

**calculus**

Determine the value(s) of x where the function will have an instantaneous rate of change of 14. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x) = x3 + 33 x2 + 14 x + 39
*October 3, 2013*

**math**

A NUMBER X IS INCREASED BY 27 AND THE RESULT IS MULTIPLED BY 6 GIVING 372 AS THE RESULT
*October 3, 2013*

**math,pre algebra**

Apples sell for 1.29 a pund and there is an average of 3 apples per pund.About how many apples would you expect to get for 5.00
*October 3, 2013*

**Math**

During a week-long dry spell,the water level in a pond decreased by 4 inches per day except for two days when it decreased by half of that amount. How much did the water level decrease in the pond in one week?
*September 30, 2013*

**Spanish**

Thanks btw what would gusto mean?
*September 30, 2013*

**Spanish**

I dont get what word to choose: Estudias mucho, ¿ (blank)? Do I fill it in with verdad or gusto? Why?
*September 30, 2013*

**chemistry 1405**

how to write a nuclear equation for the nuclear decay of Ra-226 to an isotope of radon-222
*September 25, 2013*

**Physics**

A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 21.0 minutes at an average speed of 9.48 m/s. During the second part, she rides for 43.5 minutes at an average speed of 3....
*September 17, 2013*

**science**

'The subscripts in the chemical formula for a molecular compound are not always in the lowest ratio.' Using what you know about naming binary molecular compounds, provide evidence that supports this statement.
*September 14, 2013*

**English**

i have to take out embellishments, misquotations,false benefits and unethical tactics out of these sentence can some one help me All customers qualify for the maximum discount available.
*September 8, 2013*

**Math**

A school cafeteria sells sandwiches for $4.50 each, cartons of milk for $1 and bananas for $0.50 each. One table of students spent $36.00 total. They bought 2 more milks than sandwiches and they bought two time more sandwiches than bananas. How many bananas did the students buy?
*September 5, 2013*

**Maths**

If Joseph can consume in one sitting one medium (30cm) deep dish (2.5 cm thick)pizza, what is the minimum from nine to ten centimeters?
*August 12, 2013*

**Math**

Consider the weighted voting system [75: 31, 29, 23, 16, 8, 7]. Find each: a. The total number of players b. The total number of votes c. The weight of P3 d. The minimum percentage of the votes needed to pass a motion 9rounded to the next whole percent)
*August 9, 2013*

**statistical analysis**

According to the “January theory,” if the stock market is up for the month of January, it will be up for the year. If it is down in January, it will be down for the year. According to an article in the Wall Street Journal, this theory held for 29 out of the last 34 ...
*August 1, 2013*

**statistical analysis**

Hi there, I am a senior trying to get some assistance with one of my many papers. Thank you!
*August 1, 2013*

**statistical analysis**

New Process, Inc., a large mail-order supplier of women’s fashions, advertises same-day service on every order. Recently, the movement of orders has not gone as planned, and there were a large number of complaints. Bud Owens, director of customer service, has completely ...
*August 1, 2013*

**statistical analysis**

Compute the mean and variance of the following discrete probability distribution. x P(x) 2 .50 8 .30 10 .20 Please assist and guide accordingly. Thank you so very much!
*August 1, 2013*

**statistical analysis**

2. The Computer Systems Department has eight faculty, six of whom are tenured. Dr. Vonder, the chair, wants to establish a committee of three department faculty members to review the curriculum. If she selects the committee at random: a. What is the probability all members of...
*August 1, 2013*

**statistical analysis**

A _________ is the total collection of individuals or objects.
*July 24, 2013*

**algebra**

Company A rents copiers for a monthly charge of $360 plus 12 cents per copy. Company B rents copiers for a monthly charge of $720 plus 6 cents per copy. What is the number of copies above which Company A's charges are the higher of the two?
*July 20, 2013*

**ENGLISH**

aha i really didnt know what is this for shure so thans anyway
*June 27, 2013*

**ENGLISH**

hahahahah ok thanks for help :))
*June 27, 2013*

**ENGLISH**

hahaha ok i hope this is it: ok,everyone,listen,please,I want to go over the plans for tonight one more time.Henrys train A)gets in at eight o'clock and he B)is expecting to be picked up by me and taken to a late meeting.On a way from a station,I C)will stop to get some ...
*June 27, 2013*

**ENGLISH**

is this correct:A A C B D C C D B A C B
*June 27, 2013*

**ENGLISH**

you really help me at a last one and if you have some time can you help me whit this too? Read the text and choose the correct answer. ok,everyone,listen,please,I want to go over the plans for tonight one more time.Henrys train_________at eight o'clock and he________ to be...
*June 27, 2013*

**ENGLISH**

can you please help me to solve this task? Complete the sentences with the correct form of the verbs in brackets. I 1 _____________________ (go) to the gym for quite a long time and I 2 _____________________ (still wait) to see some results. Every time I go, I 3 ...
*June 27, 2013*

**Business Math**

Abe Wolf bought a new kitchen set at Sears. Abe paid off the loan after 64 days with an interest charge of $12. If Sears charges 9% interest. What did Abe pay for the kitchen set (assume 360 days
*June 22, 2013*

**Physics**

Light of intensity 2 Wm^–2 is traveling through air (n = 1.0) is normally incident on a dielectric surface. If the intensity of the reflected light is 0.3 W m^–2 what is the refractive index of the dielectric material?
*June 13, 2013*

**spanish**

Que es Yaocuicatl?
*June 9, 2013*

**english**

what are some example of how the tv parlor in fahrenheit 451 is harmful
*May 21, 2013*

**social studies**

what happened to Denver after the gold rush?
*May 16, 2013*

**School**

How much force would you need to apply to a 1.7kg object to have it reach 5.8 m/s if it starts from rest?
*May 16, 2013*

**Physics**

Susie weighs 100lbs. Sam weighs 150. The seesaw is 20ft long. The seat on one side only is movable in one foot increments. At what distance from the axis should the seat be placed in order for them to balance? Where should each person sit?
*May 12, 2013*

**music**

HOW DO I IDENTIFY INTERVALS???? I need to know major, minor, augmented, diminished, and perfect. so here is what I kind of understand so far: PU: 0 half steps P4: 5 half steps P5: 7 half steps P8: 12 half steps, and for any one of these to be diminished, there needs to be one ...
*May 12, 2013*

**CHEMISTRY Homework**

What will be the products of the electrolysis of an aqueous solution of zirconium iodide (ZrI4)? (The electrodes themselves are platinum.)
*May 10, 2013*

**Chemistry Question**

Thank you I really appreciate your help!
*May 10, 2013*

**Algebra**

Are you doing ashworth Brittany?
*May 8, 2013*

**algebra**

A coffee shop sells small cups of coffee and large cups of coffee. A small cup of coffee costs $2. A large cup of coffee costs $3. On Tuesday, the store sold a total of 155 cups of coffee for a total of $335. How many small cups of coffee did the store sell on Tuesday?
*May 7, 2013*

**chemistry**

WHEN DOES A CHEMICAL BECOME A DRUG?
*May 5, 2013*

**computers**

Which type of chart would best illustrate each department's sales as a percentage of the overall store sales? Answer a. area b. bar c. line d. pie
*May 2, 2013*

**algebra 2 ap**

Jason uses his car for his job. He is allowed to depreciate the car 7% per year. IF the car was worth $23,000 new, in about how many years will the car be worth $3,000?
*April 28, 2013*

**Math**

What are three distinct numeric approaches for calculating the product 24x32?
*April 25, 2013*

**Math**

Shaun rides 8 kilo meters west from his house to school. After school he rides 6 kilo meters north to Mario's house. What is the distance from Mario's house to Shaun's house measured in a straight line?
*April 22, 2013*

**chemistry/Ksp**

It is more accurate to report a single value OR a range of values for Ksp?
*April 22, 2013*

**Math**

Mr.Brown is building a slide for his kids. The ladder is 3 meters tall ad the slide is 5 meters long. What is the distance between the ladder and the bottom of the slide?
*April 22, 2013*

**Chemistry**

Estimate the equilibrium constant for the weak acid HCN, if a 4.68×10-3 M aqueous solution of HCN has a [H+] 0.00000151 M (make an exact calculation assuming that initial concentration is not equal to the equilibrium concentration). HCN = CN- + H+
*April 17, 2013*

**Chemistry**

You have 1liter buffer solution containing 0.1 M HF and 0.05 M NaF. Now you add 0.055 moles of HCl to it. A) Do you think that the solution still retains it's effectiveness? B) Explain rationally how you came to the conclusion. I do not think that the solution would retain...
*April 16, 2013*

**chemistry**

how many grams of oxygen are in 175 g of C5H10O5
*April 16, 2013*

**Chemistry**

Consider the equilibrium 2NOCl (g) <---> 2NO (g) + Cl2 (g). In a 1 L container @ equilibrium there are 1.0 mol NOCL, 0.70 mol NO, and 0.40 mol Cl2. @ constant temperature and volume, 0.10 mol NaCl is added. What are the concentrations in the "new" equilibrium ...
*April 13, 2013*

**Chemistry**

Which of the following is/are present in a reagent bottle labeled 1.0 M H2SO4? I. H2SO4 II. HSO4- III. SO4-2 A. I only B. I and II C. II and III D. I, II, and III
*April 13, 2013*

**Chemistry**

Consider the equilibrium 2NO (g) <---> 2NO (g) + Cl2 (g). In a 1 L container @ equilibrium there are 1.0 mol NOCL, 0.70 mol NO, and 0.40 mol Cl2. @ constant temperature and volume, 0.10 mol NaCl is added. What are the concentrations in the "new" equilibrium in ...
*April 12, 2013*

**math**

1600
*April 11, 2013*

**physics**

The GoodYear blimp is kept aloft by helium gas which fills a volume of 4559m^3. It can carry a maximum load of 1176kg. How much more mass could the blimp carry if it were filled with hydrogen? Take the density of helium gas to be 0.160kg/m^3 and that of hydrogen to be 0.081kg/m^3
*April 10, 2013*

**Probabilities**

In a cookie jar, there are 6 chocolate cookies and 8 oatmeal cookies. I take out the cookies one at a time and proceed to eat them. The probability that the 7th cookie that I eat is a chocolate cookie is a/b, where a and b are positive coprime integers. What is the value of a+b?
*April 9, 2013*

**Math**

Bought 3 shirts & 2 pair pants for $85 and my friend bought 2 shirts & 5 pants for $130, and the shirts are the same price, what is the price of each shirt?
*April 8, 2013*

**Physics**

1a)if accelerating voltage is doubled in a CRT the deflection will change from "d" to ____? b) if magnetic field strength is doubled, deflection in a CRT will change from "d" to ___?
*April 7, 2013*

**Probabilities**

A group of 5 people are going to meet weekly at the library for 4 weeks. Each week, two people are selected at random to speak. Each person may speak in multiple weeks, but no pair of people will speak together more than once. The probability that there is a person who will ...
*April 1, 2013*

**Combinations**

Anna was opening a new restaurant, so she went to the sign store to get letters to make a sign to hang above the storefront. When she got to the sign store, the only letters they had in stock were two copies of the letter 'X,' two copies of the letter 'E,' and ...
*April 1, 2013*

**Probabilities**

A bag contains 150 balls numbered 1 through 150 . Three balls are drawn and placed on the table. The probability that the balls were drawn in increasing order can be expressed as a/b where a and are coprime positive integers. What is the value of a+b
*April 1, 2013*

**quiz**

We are given 7 squares of side lengths 1, 2, 2, 2, 3, 4, 5. They can be fitted to form a rectangle, with no overlap or gaps in-between. What is the perimeter of the rectangle?
*April 1, 2013*

**Maths**

Let f(x)=x^2 -1 . How many distinct real roots are there to f(f(f(x)))
*April 1, 2013*

**quiz**

The vertices of a cube are labeled with the numbers 0,1,2,3,4,5,6 and 7, such that no two vertices are labeled with the same number. The sum of any 2 numbers on an edge is prime. What is the maximum sum of the 4 numbers on a face?
*April 1, 2013*

**Math**

What is the answer to the equation (0.3.)²-(0.2)²•(0.5)?
*March 31, 2013*

**Trig**

Use a half-angle identity to find the exact value for sec(x/2) if sinx = -12/13 ; 3pi/2 < x < 2pi
*March 28, 2013*

**algebra**

Determine whether the following is a polynomial. 937g2h3 - 238gh2 + 54gh
*March 28, 2013*

**algebra**

The following polynomial is prime. 2q² + 9q + 1
*March 28, 2013*

**PHYSICS - formula?**

Here is one of my questions from my physics study. It tells me the answer (35 J), but how do I find that answer? I would appreciate a formula or step by step calculation. Thanks! :) A 30 kg kid on rollerskates is moving 1 m/s. His brother pushes him with a force of 5 N. What ...
*March 26, 2013*

**Life orientation**

1. Pollution - comes from factories, cars, etc. Think... try looking in your lesson or book and see if they gave examples of environmental hazards.
*March 26, 2013*

**science**

Those blue crystals are copper sulfate crystals with the formula CuSO4*5H20. It has
*March 26, 2013*

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