Wednesday
October 1, 2014

Posts by donna


Total # Posts: 432

CHEMISRTY
HOW MANY GRAMS OF MAGNESIUM ARE REQUIRED TO PRODUCE 2.154 GRAMS OF PRODUCT? STEP BY STEP EXPLAINATION
February 28, 2010

college
how to I figure how much copper is in 2.154 gram of copper sulfide?
February 28, 2010

math
How can I construct a stem and leaf plot with the midterm test scores of the seventh-period typing class with the list below? 77, 93, 91, 74, 65, 68,97, 88,59,74, 83, 85, 72, 63, 79
February 28, 2010

math
A right rectangular and right triangular prism. This is what the question said.
February 28, 2010

math
A right rectangle and a right triangle prism have the same height. If the lenght of the side of the rectangle base is twice the width, explain how to determine the area of the triangular base in terms of the rectangle base length.
February 28, 2010

math
a right rectangle and a right triangle prism have the same height. If the lenght of the side of the rectangle base is twice the width, explain how to determine the area of the triangular base in terms of the rectangle base length.
February 27, 2010

math
Consider the right circular cone shown. if the radius of the circular base remains the same and the height varies, what is the minimum surface area and minimum volume the cone can have?
February 27, 2010

math
How can I construct a stem and leaf plot with the midterm test scores of the seventh-period typing class with the list below? 77, 93, 91, 74, 65, 68,97, 88,59,74, 83, 85, 72, 63, 79
February 27, 2010

math
explain how the meter, liter, and gram are related
February 27, 2010

math
A multiple choice answers for the question. What is the measure of the dent angle for a star-shaped polygon with 20 points and a dent angle of 12 degrees? Asnwers are; 30 degrees, 50 degrees, 60 degrees, 90 degrees. How do I find the answer?
February 23, 2010

Math
Yes I did, this is how it is written. This has multiple choice answers; 30 degrees, 50 degrees, 60 degrees, 90 degrees? What is the answer?
February 23, 2010

Math
What is the measure of the dent angle for a star-shaped polygon with 20 points and a dent angle of 12 degrees?
February 23, 2010

Chem
Osmotic Pressure.. If the height of the column is 6 cm what is the osmotic pressure of the sugar solution in g/cm2 Assume the density of the solution is 1.01 g/ml.. Beaker of water with beaker of sugar solutution with semi permeable membrane
February 19, 2010

MATHS
A three-tonne truck is allowed to have a gross mass (when fully loaded) of 7.5 tonnes. If it is carrying 0.5t of sand, 1.25t of brick and 4 bags of cement each weighing 40kg, what is the maximum extra mass which can still be placed on the truck before it is over-loaded? My ...
January 21, 2010

chemistry
i need help with this question. any help would be appreciated. 1) What concentration Of H^+(aq) corresponds to each of the following:(a)pH=3.33,(b)pOH=3.33,(c) pH=6.78,(d)pOH=11.11?
January 6, 2010

Social Studies
Cow head is kind of a morel with the ridged and pitted fertile portion attached to the stipe for about half its length Familiarity information: COW'S HEAD used as a noun is very rare.
January 6, 2010

history
OGT question List what you believe are the 5 most important effects of industrialization and explain why you chose those five.
January 6, 2010

Chemistry
Estimate the solubility of lead (ll) chloride in grams per liter. ksp= 1.7 x 10^-5
December 10, 2009

chemistry
Calculate the pH of a 0.35 M solution of dimethylamine, (CH3)2NH.
December 7, 2009

Physical Science
A force of 400.0N is exerted on a 1,250N car while moving it a distance of 3.0m. How much work is done on the car.
December 7, 2009

Maths
Two people are about to begin an 18000 km trip across Asia in a Land Rover. They know that each tire will last for exactly 12000 km and not one bit more. Since they have a four-wheeled vehicle, can you figure out the least number of spares they need to complete their trip?
December 6, 2009

chemistry
Is Procion Red Dye a suitable model for chemistry lab?
December 2, 2009

chemistry
Is Procion Red dye a suitbale model?
December 2, 2009

3rd grade
need a website that shows polygons
December 1, 2009

MATHS
YEAR 5 Vincent took 1 1/2 times as long as Marcus to finish a school project. If it took them 30 days in total, how much longer did it take Vincent to complete his work? Thank you
November 27, 2009

Atmospheric Science
The current magnitude of the greenhouse effect is measured by the difference between the emission from the surface and the emission from the top of the atmosphere, € G =σTs 4 −σTe 4 ≈ 150 W m-2. What would be the required magnitude of the greenhouse ...
November 22, 2009

Atmospheric Science
Estimate the rate of freshwater mass production (kg s-1) b the melting of the North American ice sheet, assuming its melting took 500 years. How does this compare with the rate of deep-water formation in the North Atlantic, which is estimated to be about 2 x 10^10 kg s-1 at ...
November 20, 2009

Chemistry
A 100.0 mL of 0.200 M methylamine, CH3NH2, is titrated with 0.100 M HCl. Calculate the pH after 70.0 mL of 0.100 M HCl has been added.
November 14, 2009

Atmospheric Science
Assuming that the base of a building is 330 ft. above sea level, give a total correction to sea level for the station pressure of -664 N/m^2.
November 12, 2009

math
When you have a number next to a letter it's the same as multiplying them so, 3m=18 is the same as 3 x m = 18. You have to get you letter by itself. To do this divide each side by 3. That you will give you M=6 as your answer. 3m=18 3m/3 = 18/3 m=6 check your answer 3x6=18
November 10, 2009

spanish
How do you say 'deli' as in a grocery store deli? thanks
November 2, 2009

financial management
Wheeler Corporation is planning to expand its business and needs $30,000,000. The company believes that a 12-year term loan can be negotiated with a bank at an annual rate of 10%. Alternatively, an investment banking firm has indicated that it is willing to underwrite a common...
October 25, 2009

spanish
Hi, I was wondering how would you translate this phrase into spanish?: I met many new people today. Thanks much!
October 22, 2009

maths
Sean had 24 coloured pencils. This is a mutiple choice question. He was given a new set of coloured pencils which contained twice as many as he already had. Sean gave 11 coloured pencils to each of his three sisters. How many pencils did he now have? a) 36 b) 37 c) 39 d) 61 ...
October 20, 2009

maths
Twelve couples, who live in the Happy Retirement Villa, decide to install intercom systems between each of their 12 suites. How many connecting lines are necessary to permit direct conversation between any suites? (a) 2 couples (b) 3 couples (c) 4 couples (d) 5 couples Thank you
October 18, 2009

finance
Assume a corporation has earnings before depreciation and taxes of $100,000, depreciation of $40,000, and that it has a 30 percent tax bracket. What are the after-tax cash flows for the company?
October 14, 2009

world history
how did japanese feudalism evolve?
October 6, 2009

english
usage of will be
August 18, 2009

marketing
Describe an item that you purchased and list three main reasons you purchased that product as oposed to another product. Then, identify the internal influences that describe each reason you made your purchase; perception, motivation, learning, attitudes, personality, age group...
August 4, 2009

algebra
vw-vx+wz-xz x vw+vx-wz-xz ___________ ___________ kv+nv-kz-nz vw+vx+wz+xz find the product and put in lowest terms
July 26, 2009

child psycology
We see indications that a child's role in perceptual development is passive when we observe? A. irrelevent information made relvant. B. selective attention. C. a preference for certain stimuli. D. systematic search.
July 23, 2009

phyilosophy
happiness where spiritual traditions are in conflict with science and contemporary life.
July 13, 2009

Philosophy
How to achieve happiness in a contemporary world
July 10, 2009

Philosophy
Happiness in the contemporary world
July 10, 2009

algebra
I NEED HELP WITH ALL MY MATH AND I HAVE TO GET IT FINISHED BEFORE JUNE THE 18th AND I DON'T KNOW HOW TO DO IT CAN YOU HELP ME PLEASE OTHER PEOPLE TELL ME TO BUY A CACULATOR AND IF I HAD THE MONEY I WOULD SO CAN YOU HELP ME?
June 13, 2009

English
im pretty sure its NOT an interjection
May 26, 2009

English
What grammer is the "Yes" in this senence: Yes, we can go to the store, but Bobby will need to stay home.
May 26, 2009

psycology
Which of the following statements regarding sex hormones is true? A.Female sex hormones aren't involved in the primary development of the sex organs. B.Female sex hormones are necessary for the primary development of the sex organs. C.Without sex hormones,the deferred ...
April 8, 2009

Geography and World Cultures Core
The three most commonly spoken languages in North America
April 2, 2009

math
The entire family chartered a boat for the day for $840. Unfortunately, one couple had severe colds and had to cancel, so the remaining members had to chip in another $35 each. How many people were there originally?
April 2, 2009

math
the figure shows eight congruent triangles. redraw the figure with four fewer segaments, so that only four congruent triangles remain.
March 26, 2009

Math
If lynn can ytpe a page in p minutes, what piece of the page can she do in 5 minutes?
March 23, 2009

Physical Science
A 30 kg girl and a 25 kg boy face each other on friction-free roller blades. The girl pushes the boy, who moves away at a speed of 1.0 m/s. The girl speed is _______ m/s?
March 20, 2009

ms sue
thank you very much for your help. i am very grateful.
March 16, 2009

math
name 6 consecutive multiples of 5 which, when added together, make a sum between 340 and 350
March 16, 2009

5th grade
use three 9's to make 11
March 16, 2009

literature
Your strategy meeting with the project managers was very efficient. They have asked if you would be able to take part in the creation of the presentation itself. In working with the head project manager, you decide that you will create the first portion of this presentation ...
March 13, 2009

chemistry
The rate of formation of C in the reaction 2 A + B ----> 3 C + 2 D is 2.2 mol/L.s. Calculate the rates of reaction of A and B, and the rate of formation of D.
March 11, 2009

Math 116
write an algebraic expression for 43 more than t 43 + t
February 10, 2009

Statistics
A psychologist interested in political behavior measured the square footage of the desks in the official office of four U.S. governors and of four chief executive officers (CEOs) of major U.S. corporations. The figures for the governors were 44, 36, 52, and 40 square feet. The...
February 6, 2009

Business
Is OB Mod a form of manipulation? And if it is, is it unethical for managers to manipulate the behavior of employees?
January 17, 2009

Expert Business Plan
Consider the following scenario: You own your company and would like to go global. Research a potential market and product to get your export operations started and present your findings to potential investors. Create a 15-20 slide microsoft powerpoint presentation with ...
December 29, 2008

calculus
y=5/x-3 find the zeros,relative min and max.the max and min find the intervals on which yis positive or negative. on which y is decreasing.intervals y concave up or down.points of inflections
December 19, 2008

Science
What does a rooster do to defend itself when being attacked?
December 16, 2008

psychology
I believe the correct answer is A. because mz twins are more likely than dz twins but this question reads as dz twins, mz twins, so dz should be less likely. Mz twins are 96% and dz is 24% to develop the same illness.
December 16, 2008

psychology
Jennifer doesn't menstruate. In searching out the causes of her problem, a doctor could most safely ignore A a nonproduction of estrogen B the importance of Jennifer having only one X sex chromosome C the possibility of Turner's syndrome D the possibility of Huntington...
December 16, 2008

psychology
Baby Louisa is able to interact with her environment in ways that allow her to adjust her behavior accordingly. For Piagiet, Louisa is manifesting A.adaption B.accommodation c.assimilation D.referencing i believe is A but my mother thinks is B. Whose answer is correct? The ...
December 14, 2008

International Business
Your boss, the CEO of Wal Mart is interested in expanding operations into India. You have been asked to prepare a presentation for the company stakeholders that will inform them of the status of the market in India. Create a 7-12 slide presentation detailing the findings of ...
December 5, 2008

lit
the best in this kind are but shadows is
December 2, 2008

math
input (X) and output (Y) 1 8 2 14 3 ? 4 24 5 28 6 34 What is a function rule that expresses these relationship?
November 18, 2008

Environmental Science
2 pages Details: Your comments to the editor of your favorite magazine intrigued her enough to call you and request that you write an editorial, for which, you note with a little surprise, you will be well-paid. She provides you with two topics which she feels would be of ...
November 7, 2008

Animal Adaptions
What is the difference between an instinct and a learned behavior?
October 30, 2008

Evironmental science
Over a billion people in developing nations live in households that have too little land to meet even their own needs for food and fuel. What options are available to these people? What are the advantages and disadvantages of each of the following options. 1.Subdivide existing...
October 19, 2008

environmental science
A local reporter has called you for help with an article on population growth in developing countries. He begins the article with the fact that over a billion people in developing nations live in households that have too little land to meet even their own needs for food and ...
October 15, 2008

Science
The formula that I have to work with is F=G*m1*m2/d*d This is so confusing to me! I appreciate your help so much!
October 5, 2008

Science
I need help determining what impact the following has on force: The factor of 2 is added to force and the mass is cut by 1/3. Can anyone help me? Tahnks!
October 5, 2008

Algebra
How do I know if a quadratic equation will have one, two, or no solutions
September 30, 2008

Math
$ 45= 3 books 3 Pens $ 177= 11 Books 12 Pens Cost of b= P=
August 23, 2008

Algebra
Find the domain of the function p(x)= x2 - 2x+7 The 2 next to the x is supposed to be an exponent.
August 2, 2008

Networking
Thanks, I was a little confused about what that meant, as well.
July 26, 2008

Psychology
Describe how a person moves through each of the five stages of Levinger's ABC's of relationships model. As you write your description, include answers to the following questions; What do you think people look for in the attrction stage? How do people work on building a...
July 17, 2008

Psychology
Do you believe certain attributes are universally attractive? What are these attributes? Do you believe on's sense of beauty is intrinsic or learned? What influence do the media and one's peers have on the concept of beauty? What other factors influence the perception ...
July 15, 2008

Psychology
I am to evaluate how well the author used the points described in the text book about conformity and persuasion to explain their reasons for selecting Donnie. This is who the other fellow student picked. I am supose to evaluate this. I think Donnie would more likely be ...
July 4, 2008

Psychology
John is an 18 year-old freshman at New York University. John was the starting quarterback at his high school in a small town in Indiana. He enjoys playing sports and hanging out with friends. John has always been poplar and done well in school and sports. Once he is ...
July 4, 2008

Psychology
You are to evaluate how well the author used the points described in the text book about conformity and persuasion to explain their reasons for selecting Donnie. In 200 to 300 words. I think Donnie would more likely be persuaded by peer pressures. Although he's the same ...
July 4, 2008

Psychology
What is a situation where you think it is especially important to make a positive first impression? How do you try to ensure you make a favorable first impression? How can what you do to make a positive impression differ from situation to situation? For example, what would you...
June 30, 2008

Psychology and Health Problems
Summarize the multifactorial model and how it relates to the diagnosis of illnesses. Select two health problems Explain what role psychology has played in understanding and managing these health problems.
June 27, 2008

Psychotogy
Summarize the multi-factorial model and how it relates to the diagnosis of illnesses.
June 26, 2008

English
Thank you so much. Donna
June 24, 2008

English
Even though women are considred to be seperat from volence and being homeless and abused, women are homeless due to violence because violence is what makes a woman become homeless and women are homeless due to violence. I hope this makes a little more sence.
June 24, 2008

English
My Thesis Statement is Even though women are considred to be separat from homeless and abused, women that are homeless due to violence because violence that makes a woman become homeless and women are homeless due to violence.
June 24, 2008

English
My Thesis Statement is Even though women are considred to be separat from homeless and abused, women that are homeless due to violence because violence that makes a woman become homeless and women are homeless due to violence.
June 24, 2008

English
How do you plan to support your thesis with compelling arguments and counterarguments? For Homelessness and violence against women
June 24, 2008

Public Health
Can you help me with these questions and explain why the answers are chosen. I think I have the answers but not quite sure how to write why I chose those answers. Different measures of disease are useful to evaluate and assess public health programs and needs in different ...
June 10, 2008

Chemistry, Arrhenius law
The rate constant of a first order reaction is 4.60x10^-4/s at 350 degrees Celsius. If the activation energy is 104 kJ/mol, calculate the temp. at which its rate constant is 8.80 x 10^-4/s. So I think that I can use this version of the equation: ln (k1/k2) = Ea/R * (T1-T2/T1*...
May 28, 2008

Chemistry
The burning of methane in oxygen is a highly exothermic reaction. Yet a mixture of methane and oxygen gas can be kept indefinitely without any apparent change. Can someone give me an explanation behind this?
May 27, 2008

Chemistry
Write rate law expressions? 2NOCl(g) --> 2NO(g) + Cl2(g) S2O3^2-(aq) + H^+(aq) --> HSO3^-(aq) + S(s) (Sulfur initially forms a colloid solution so it can be treated as aqueous.) (1) Write the rate law expression for the above reactions, assuming these are elementary. (2...
May 21, 2008

Math
Nope, there was no typo, and the answer was 0. Thanks for the clarification!
May 19, 2008

Math
Find y'(x) when cos y - y^2 = 8 a) -siny - 2y b) - (1/sin y - 2y) c) 0 d) - (8/cos y - y) So if I implicitly differentiate: y'(x) = -sin(y) - 2y y' = 0 Am I right to say that there's nothing more you can do to this and pick C? y' = 0 / (-siny - 2y) So y'...
May 19, 2008

Math
1. Find y'(x) when xsecy - 3y sinx = 1 a) (3ycosx - sec y) / (xsec^2y - 3sinx) b) (3cosx - sec x) / (xsecytany - 3sinx) c) (3ycosx - sec y) / (xsecytany - 3sinx) d) (3ycosx - secytany) / xsec^2y - 3sinx) This is what I did: xsecy - 3y sinx = 1 => sec y + x sec y tan y...
May 19, 2008

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