Sunday

December 21, 2014

December 21, 2014

Total # Posts: 55

**Physics**

A roll of toilet paper (a partially hollow cylinder with R_2 = 7.5cm, M = 300g, and I = 9.0 x 10^-4 kg m^2) is mounted on a mass-less axle along its central axis. Te roll is initially at rest. Then, at t=0, a child grabs the end of the roll and starts running, pulling the ...
*November 23, 2014*

**Chemistry**

I am so confused with my chemistry lab right now. We were given the following equations to work with: [Equation 1] 2 I^- + H2O2 + 2 H^+ ----> I2 + 2 H2O [Equation 9] 2S2O3^2- + I2 ----> 2I^- +S4O6^2- And During the Experiment we used the following for each reaction: T1...
*September 20, 2014*

**PRE ALGEBRA**

solution to electrical poles that carry electrical wire seem to get smaller the further away you are. Find the apparent height of each pole if the tallest pole is 50 feet tall and there is 100 feet between poles.
*January 23, 2014*

**life orientation**

described the pratice of high risk sexual behavior amongs the adolescene
*April 15, 2013*

**science**

A heat exchanger is used to warm apple cider using steam as the heat source. The cider is heated from an initial temperature of 4 degrees celcius to a final temperature of 65 degree celcius. The steam enters the heat exchanger as 50% quality steam and exits as water condensate...
*March 4, 2013*

**Food Chemestry**

A heat exchanger is used to warm apple cider using steam as the heat source. The cider is heated from an initial temperature of 4 degrees celcius to a final temperature of 65 degree celcius. The steam enters the heat exchanger as 50% quality steam and exits as water condensate...
*March 4, 2013*

**Help with Calculating Probabilities**

Anon: Do you know how to calculate probabilities like P10, P20, P30...? I do not understand lot of this statistics stuff and desperately need help. Thanks
*September 13, 2012*

**Statistics**

Can you change this research question into a null hypothesis: What is the difference in students’ computer anxiety based on whether or not they own computers?
*September 12, 2012*

**math**

i need the answer to this mathamatical question (3x6)+12/2-8
*October 26, 2011*

**space**

What is the role of chemistry in outer space exploration?
*July 14, 2011*

**math**

What is 25% of 16
*April 11, 2011*

**maths**

calculate the longest and the shortest perimeter possible that encloses and area of 9m..16m..25m..36.. can u tell me please
*April 5, 2011*

**English**

Unscramble these letters bikfatcrgos to make three words
*March 30, 2011*

**chemistry**

How do I calculate the molecules of 3.52 moles CO2?
*January 30, 2011*

**chemistry**

Please show me how to calculate the number of moles in 8.45 x10 to 21st power formula units of calcium chloride?
*January 30, 2011*

**chemistry**

What is the molarity of an unknown acid if 40.5 ml of the acid can be titrated to an end point by 20.5 ml of 0.2250 M NaOH?
*October 16, 2010*

**math**

a^2b^2-2a^2b-15a^2
*September 18, 2010*

**British Lit----URGENT**

In James Joyce's "The Dead," Gabriel experiences an epiphany. This helps to make him a A)flat character B)stereotype C)round character D)supernatural being. I feel in the story he is a round character but I am not sure if the epiphany makes him a flat or ...
*May 8, 2010*

**British Lit----URGENT**

In James Joyce's "The Dead", Gabriel experiences an epiphany. This helps to make him a A)flat character B)stereotype C)round or D)Supernatural being.I feel it is A)flat, but an not sure.
*May 8, 2010*

**british Lit-URGENT**

personification
*May 8, 2010*

**british Lit-URGENT**

The speaker in Ted Hughes's poem "Hawk Roosting" is the hawk. What figure of speech is this? A)simile B)metaphor C)personification D)hyperbole. I feel is is personification but am not sure.
*May 8, 2010*

**algebra II URGENT**

if peter received grades of 88,83,75,and 80 on four tests in English, what is the minimum grade he has to score on the fifth test to have an average of at least 85 for the course?
*May 4, 2010*

**algebra II-URGENT**

the perimeter of a rectangular yard is 270 feet. If its length is 25 feet greater than its width what are the dimensions of the yard
*May 3, 2010*

**Algebra II**

If Peter received grades of 88,83,75,and 80 on four tests in English, what is the minimum grade he has to score on the fifth test to have an average of at least 85 for the course?
*May 3, 2010*

**Algebra II**

The perimeter of a rectangular yard is 270 feet. If its length is 25 feet greater than its width, what are the dimensions of the yard?
*May 2, 2010*

**math**

Solve for the unknown: 8/52 = m/39
*March 21, 2010*

**english**

In the short story, Grandma Weavers Last Arrow, what is the Last Arrow?
*January 10, 2010*

**algebra**

Find the root (solve) of each equation. a)1/3 (2w-6)=-10 b)3a-7/4=4a+5/3 c)3k/2-k+3/3=8-k+2/4
*October 27, 2009*

**algebra**

Expand. a) 3(y-7) b)-4k(2k+6) c)4b(b2-2b+5)
*October 27, 2009*

**algebra**

Factor a)6y+18y2 b)3m - 9m2 + 15m3 c)12k2 - 48k4 - 18k6
*October 27, 2009*

**algebra**

1/3 (2w-6)= -10 subtract 2w from each side 1/3(2w-2w-6)= -10-2w 1/3-6 = -8w add 6 to each side 1/3-6+6=-8w+6 1/3=-2w bobprusly what do i do from here am i correct so far???
*October 27, 2009*

**Algebra**

Three authors team up to write a childrens book. The publisher pays them according to the following contracts Author - Fixed Rate - Royalty Patricia $3000 - 1n Stephan - $1500 - 2n Harlan - $1000 - 3n Determine the total payout if the book sells * 200 copies * 5000 copies
*October 27, 2009*

**Algebra**

Total age of 3 sisters is 39 Dina is 1/2 as old as Michelle and 3 years younger than Juliettte. How old are the sisters ?
*October 27, 2009*

**Revised**

Fid the root of each question 1. 1/3 (2w-6) = -10 2. 3a-7/4 = 4a+5/3 3. 3k/2 - k+3/3 = 8- k+2/4
*October 27, 2009*

**MATH**

Factor 1. 6y + 18y2 2. 5a2 - 25 a3 3. 3m - 9m2 + 15m3 4. 12k2 - 48k4 - 18k6
*October 27, 2009*

**math**

Find the root of each question 1. 1/3 (2w-6)= -10 2. 3a-7 = 4a + 5 4 3 3. 3k - k+3 = 8 - k+2 2 3 4 PLEASE HELP !!!
*October 27, 2009*

**Algebra**

There were 1000 more students at the soccer game than nonstudents. Student tickets were $8.50 and nonstudent tickets were $13.25. If the total revenue for the game was $75,925, then how many tickets of each type were sold?
*September 11, 2009*

**algebra**

Suppose you are an event coordinator for a large performance theater. One of the hottest new Broadway musicals has started to tour, and your city is the first stop on the tour. You need to supply information about projected ticket sales to the box office manager. The box ...
*July 19, 2009*

**algebra**

One of the hottest new Broadway musicals has started to tour, and your city is the first stop on the tour. You need to supply information about projected ticket sales to the box office manager. The box office manager uses this information to anticipate staffing needs until the...
*July 18, 2009*

**math problem**

a worker submits the following data on a timesheet: week 1: total hours: 42 (including 4 hrs sick leave, 6 hrs travel) Week 2: total hours: 46 hours (including 5 hours travel) what percentage of the recorded time did the worker spemnd traveling?
*May 18, 2009*

**math problem**

two coins and one six-sided number cube are tosses together. What probability of getting two heads and a four? 1/24 1/8 2/9 1/12 or 1/9
*May 18, 2009*

**math**

as a wedding gift a couple was given 100 shares of stock worht $27.50 per share. By their first anniversary, the valur of the stock had risen by 8%. How much more was the stock worth at the end of the year than when the couple first received it?
*May 18, 2009*

**math**

a supervisor must split 60 hours of overtime between five people. One employee must be assigned twice the number of hours as each of the other four employees. How many hours of overtime will be assigned to each employee?
*May 18, 2009*

**accounting**

1-1-08 ferndell had a/r $56900 and allowance for doubtful account $4700. jan 5 Ferndell prepares financil statement, prepare the necessary journal. sold $6300 of merchandise to john, terms n/30. Cost of good was $5,100. Feb 2 accept a $6300, 4-month, 10% promissory from john. ...
*March 10, 2009*

**Business Statistics**

The manager of a vacation resort has claimed that, on average, a guest spends at least $3000 at the resort during a one week stay, including meals and entertainment. A member of the accounting staff does not believe the amount is that high. They authorize you to settle their ...
*January 8, 2009*

**math**

what is the meidan of: 1,6,6, 7, 7,16, 18, 18,22,22
*November 24, 2008*

**Business**

How does budgeting help management make good business decisions?
*October 28, 2008*

**arithmetic**

How do I get hours to perform task I have a rate of 28 per hour and 6245 transactions how many hours to complete
*October 23, 2008*

**Nutrition**

in 200 to 300 words, the path food follows through the digestive system and how digestion occurs in each of the following parts of the digestive system. Be sure to include descriptions of other organs or components of the digestive system, including: o Large intestine o Mouth ...
*September 25, 2008*

**math**

how do you subtract 3 1/3 2 2/5
*August 26, 2008*

**Physics check**

List the three types of radioactivity by increasing ability to penetrate matter. 1 gamma rays 2 beta rays 3 alpha rays ?
*April 17, 2008*

**Physics check**

Atoms whose nuclei have the same number of protons but different numbers of neutrons are called.... isotopes?
*April 17, 2008*

**Physics check**

Which of the following represents the typical lifetime exposure of radiation? 0.2 rem; 200 rems; 20 rems; 500 rems 20 rems?
*April 17, 2008*

**Physics check**

If an atom has 104 electrons, 157 neutrons, and 104 protons, what is the atomic number of the nucleus? have no idea
*April 17, 2008*

**Physics check**

The two quantities conserved in all nuclear equations are....... mass and number?
*April 17, 2008*

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