Sunday
December 21, 2014

Posts by bev


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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