Friday
August 22, 2014

Posts by ROSE


Total # Posts: 889

physics
a = (deltav)/t = (d/t)/t =(400/10) / 10 =4m/s :)
October 3, 2010

Maths - trig
Solve 3cos2x - 7cosx = 0, when 0<=x<=360 And also, find the exact values for x when 0<=x<=360 if 3tan^2x=1 Thankyou!
October 3, 2010

physics
Devon : a = F / m Effective F = upward force - downward force (weight) = 11- 15.5 = 4.5 downward a = 4.5/ (15.5/9.8) = 2.8 m/s downwards. (I'm pretty sure anyway)
October 3, 2010

physics
Yes if the upward force is less than gravitythen the acceleration would be downward, but it wouldn't be negative as it's not a deacceleration. :)
October 3, 2010

Chemistry
Balance the eqn Na2CO3 + 2HCl -> 2NaCl +H20 + CO2 From the balanced eqn you can see that one mole of CO2 is produced. Then at stp 1 mole of gas takes up 24 litres (I think, check this on google) therefore v= 24 litres. :)
October 3, 2010

PIs 267
How much work is need to raise a 110 kg loag of bricks 12m above the ground
September 29, 2010

geometry
Solve the equation for x. -5x = 3 + y is it x = (3+y)/-5
September 29, 2010

Math
wait there is no x after the seven its just 3x + 23 = 7 so x = ?what?
September 29, 2010

Math
If triangle XYZ is equilateral and the length of one side is 7.5, what is the perimeter of XYZ and what is the measure of each angle?
September 29, 2010

Math
Soda comes in packs of 6. Candy comes in 4 bags per pack. What is the least number of each pack (Soda and Candy) she must buy to have exactly one soda per bag of candy?
September 28, 2010

6th grade, social studies
who is discussed in the biography feature of chapter 6,lesson 1
September 27, 2010

Math
How is 3x2 different from 3 to the 2nd power ?
September 21, 2010

chemistry
You mix 2.0 mL of 0.50 M Cu(NO3)2 with 5.0 mL of 0.50 M KI, and collect and dry the CuI precipitate. Calculate the following: a) Moles of Cu(NO3)2 used b) Moles of KI used c) Moles of CuI precipitate expected from Cu(NO3)2 d) Moles of CuI precipitate expected from KI
September 20, 2010

Physics
thank you. can you help me solve another?
September 19, 2010

Physics
Two cars travel at the same constant speed. The first car travels for 10 minutes, the second for 27 minutes. If the second car travels 18 miles farther tht the first, how far does each car travel?
September 19, 2010

psychology
thanks a lot Ms. Sue, it has been a while.
September 19, 2010

psychology
Need two peer reviewed articles to help me work on those questions. below Discuss how social psychology differs from other related disciplines (e.g., clinical psychology, general psychology, sociology). Explain the main types of research approaches/methods and their role(s) ...
September 19, 2010

physics
An object with uniform motion traveled 265cm in 2.4 seconds. how much time did the object take to travel the last 50cm?
September 19, 2010

algebra
We can determine the time it would take an object to fall (if there were no air resistance) by using the formula where d is the distance. A. How long does it take a quarter dropped from a 35 foot roof to reach the ground? B. If there are 5,280 feet in one mile, how long would ...
September 12, 2010

childcare
5d,8a,13a
September 3, 2010

childcare
1b,2c,5d,8a,13a
September 3, 2010

Science
Thank you !!!!!!!!
August 4, 2010

Science
a certain plant's roots contain higher concentration of nitrate than the soil that surrounds them. Which of the fallowing mechanism explains the movement of nitrate from soil into the plant's roots? Active transport???
August 4, 2010

Science
1-B 2-B 3-C
August 4, 2010

Science
) Mare is preparing an experiment using 3 cups, one made of paper, one of plastic and one of glass. She plans on pouring 50 ml of hot water from a pitcher into each of the 3 cups and record the temperature in 5 minute intervals. What is the independent variable in this ...
August 4, 2010

science
Maria is preparing an experiment using three cups, one made of paper, one of plastic, and one of glass. She plans on pouring 50 ml of hot water into each of the three cups and recording the temperatures in 5 minute intervals. What is the independent variable in this ...
August 4, 2010

science
Maria is preparing an experiment using three cups, one made of paper, one of plastic, and one of glass. She plans on pouring 50 ml of hot water into each of the three cups and recording the temperatures in 5 minute intervals. What is the independent variable in this ...
August 4, 2010

Science
a certain plant's roots contain higher concentrations of nitrates than the soil that surrounds them, which mechanism explains the movement of the nitrate from the soil into the plant's roots? is it facilitated diffusion
July 28, 2010

Quantitative Analysis
Payoff tables are more difficult to use than decision trees when?
July 27, 2010

Physic
Brad uses a wheelchair to get in his house.which modification would make it easier for Brad to get in his house? a)increase the length of the ramp b)increase the friction between the wheels and the ramp surface
July 26, 2010

Chemistry
Below are the formulas of some hydrates. what is the mole ratio of salt to water? Hydrate Na2SO4.10H2O Co(NO3)2.6H2O Mo(NO3)2.5H2O CaSO4.2H2O (CaSO4)2.H2) Thankk you
July 22, 2010

Chemistry
A student worked with a sample of ZnSO4.7H2O, what is the stoichiometric ratio of salt to water?
July 22, 2010

Chemistry
mole ratio of Na2SO4.10H2O
July 22, 2010

chemistry
mole ratio of CaSO4.2H2O
July 22, 2010

chemistry
mole ratio of (CaSO4)2.H2O
July 22, 2010

statistics
a. 50% b. 0.84 c. 97.72%
July 19, 2010

geometry
how can i identify iif it is coplanar,collinear or neither
July 18, 2010

english
need help with tefl unit 6 the whole of it
July 8, 2010

english
identify the folowing tenses give reasons for identification. i have never met any body famous john is having a shower at the moment i go shopping at least twice a week i have been working herefor 10 years
July 7, 2010

english
How , what, and when would you correct mistakes/errors made during the following stages ENGAGE STAGE, STUDY STAGE, ACTIVATE STAGE
June 26, 2010

algebra
4(2x+y)-3(x-5)
June 19, 2010

algebra
using the quadratic formula, how do you solve 2p^2 + 16p = -2p^2 + 3?
June 8, 2010

math
The price of an antibiotic decreased from $86.25 to $52.75 for a bottle of 100 tablets. Find the ratio of the decrease in price to the original price.
June 7, 2010

business
What are some of the best practices or etiquette that should be followed when writing business e-mails. How is the Web affecting the way business is conducted? Are there changes in business practices that apply to a virtual company?
June 7, 2010

ethnic studies
what is a good definition for individual discrimination?-...... I am trying to contrast it from institutional discrimination and I am finding it to be complicated, Thanks
June 6, 2010

intro to business
No one can predict a natural disaster or world crisis. When a hurricane or flood or a pandemic strikes a country, who is most likely to respond first? Which economic system is the best solution to handling a crisis of epic proportion?
May 21, 2010

race and ethnicity
what can be the best way to explain the differences between exclusion and segregation??- Thanks
May 20, 2010

english
what are the five basic clues or signals that awriter can use yo guide readers through a peice of writing
May 14, 2010

statistics
Using the 68-95-99.7 rule: Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: Suggest you make a drawing and label first… a. (0.1 point) Percentage of scores...
May 10, 2010

psychology
need to identify at least four key milestones in the development of cognitive psychology as a discipline, need some data to help me discuss this question
May 8, 2010

anatomy
If a person has stopped breathing and is recieving pulmonary resuscitation would it be better to administer pure oxygen or a mixture of oxygen and carbondioxide?
May 7, 2010

anatomy
If a person has stopped breathing and is recieving pulmonary resuscitation would it be better to administer pure oxygen or a mixture of oxygen and carbon dioxide?
May 7, 2010

Life orientation
Any human or enviromental problem and the community is Mamelodi
May 3, 2010

psychology
Can I please have some information to help me discuss this question beloww: Analyze at lease two research methods used for uncovering basic emotions
April 30, 2010

Intermediate Algebra
Used ASCII Character Solve for X 5=6x+ 6x=5-9 6x=-4 x=-2/3
April 30, 2010

Intermediate Algebra
Solve this please 5=6x=9 6x=5-9 6x=-4 x=-2/3
April 30, 2010

statistics
At a ski area in Vermont, the daytime high temperature is normally distributed during January, with a mean of 22°F and a standard deviation of 10°F. You are planning to snowboard there this January. What is the probability that you will encounter daytime highs of a) 42...
April 23, 2010

Math
isnt it the sum of the X's squared divided by n or the sample?
April 23, 2010

ap government
What was the Roosevelt court-packing plan? What does it suggest about the relationship between the Supreme Court and the other branches of government?
April 12, 2010

algebra
A student opens a math book to two facing pages.The product of the page numbers is 210.Find the page numbers. The first page is _________ The second page is________
March 29, 2010

history
thank you.. oh i meant to write "food-aid" all in one term... I also have another question.. where can i find information about the affect of lives of people in the colonies during the 2oth century due to capitalism? thanks..
March 18, 2010

history
For my history class I need to identify these terms but do not know where I can find more info about them to make my answer a page long for each... these terms are.. FOOD AID and the Soviet-Afghan War that occured during the 20th century.. thanks
March 18, 2010

psychology
Mrs. Sue, The first question is as follows: Analyze how neuro processes effect behavior and impact the field of biological psychology. the following question must be addressed Describe the role of postsynaptic potentials, synaptic transmission, and receptors in producing and ...
March 13, 2010

psychology
Miss Sue, How are you? It has been a while. Thank you so much for your help. Have a nice evening
March 13, 2010

psychology
Working on a paper entitled: neurological processes. Would like to have some data to help me work on it. Thank you very much.
March 13, 2010

Using the factor Theorem
thank you so much dear mate, yes i took your advise and indeed i got it as a factor:) thank you.
March 13, 2010

Using the factor Theorem
use the factor theorem to determine whether x-c is a factor of f(x) f(x)=x^3+8x^2-18x+20; x-10 I have a doubt in my answer, i determined that x-10 is not a factor... am i right? please verify as my exam is tomorrow night at college. thank you for your time and hard work:)
March 13, 2010

english
thanks again!! :)
March 4, 2010

english
A primary concern is the substantial risks to women's health posed by the extraction procedure and the inability to obtain true informed consent from egg donors given the current lack of adequate safety data. can someone please break this sentence up to make it more ...
March 4, 2010

english
i'm writing a persuasive essay about human cloning (against it). do you knw any good articles that has disadvantages and risks of human cloning? thnx in advance
March 1, 2010

AP World History
I need to write an essay comparing how North American racial ideologies and their effects on society with Latin American/Caribbean racial ideologies and their effects on society. Can't find annnyyythinggg on Latin American/ Caribbean racial ideologies and their effects on ...
February 15, 2010

statitics
find the probility that when 4 managers are randomly selected from a group of 20, the 4 oldest are selected
February 11, 2010

chem
The real equation should be something like this: H2S + O2 -> S + H2O Balancing the equation: 2 H2S + O2 -> 2S + 2H2O The question does not mention anything about methane, CH4. Also, The sulfur in the equation (mistaken as methane, i suppose) is one of the product, not ...
February 9, 2010

Algebra 1
How do you graph y=1/2x+1 y=-3x+8
February 2, 2010

History
Hello, I am doing this History project where we are required to differentiate the violence exerted by the great powers in context of New Imperialism and the First World War. The problem is that I am having trouble finding articles that actually talk about the violence that was...
February 1, 2010

math
what are the x-intercepts here? y=x^2+2x-35 y=x^2+2x-48
February 1, 2010

math
(√12 x √16)/√75 √(12/25) how to simplify these?
February 1, 2010

Math
If qrs / r = s and the value of q is 0, which of the following must be true? Explain why. a) r = 0 b) s = 0 c) s / r = 1 d) qr / r = 1 e) s = 2r
January 30, 2010

Math
Choice C. Thanks.
January 30, 2010

Math
Sorry about that but thanks for your help. a) 4 x 1/10 b) 4 x 1/100 c) 4 x 1/1,000 d) 4 x 1/10,000 e) 4 x 1/100,000
January 30, 2010

Math
In the number 0.3645, which of the following does the digit 4 represent? Explain why.
January 30, 2010

sew
This is the taking of extra measurement on the pattern
January 28, 2010

math
3.0970 x 1500.
January 11, 2010

math
which number sentence is 6 fewer than 11
January 10, 2010

Math
I posed a problem and no one helped me to see how to solve the problem. I don't want you to give me the answer, I want to know how to arrive at the correct answer. Again, Ms. Pecho currently owes $637.50 in simple interest on a loan of $25oo at an annual interest rate of ...
December 31, 2009

Math
Ms. Pecho currently owes $637.50 in simple interest on a loan of $2500 at an annual interest rate of 17%. How long has she had the loan? How do you figure out this problem? I am not merely looking for an answer, I would like to know how to do it to know if he is doing it ...
December 31, 2009

Math
8th grade math. I cannot help my grandson with his math. I do not understand it myself. It is dealing with percentages. I do not understand it.
December 31, 2009

8th grade
I see no school subject box
December 31, 2009

8th grade
Math. I thought it was understood when I said math homework and the question asked about percentages.
December 31, 2009

8th grade
Ms Pecho currently owes $637.50 in simple interest on a loan of $2500 at an annual interest rate of 17%. How long has she had the loan. This is his problem and I have no clue how to help him but I do know the answer he came up with is 18.77. That seems wrong to me.
December 31, 2009

sewing.
1.B 2.A 3.D
December 16, 2009

psychology
Thanks a lot Ms. Sue, It has been a while. How are you?
December 9, 2009

psychology
Ms. Sue, could you help me find some data to answer the question below. What are both the advantages and disadvantages of classifying mental disorders into types and maintaining such taxonomy for clinical reference ? Explain your answer for both. thank you
December 9, 2009

Science
Can you explain how attractions between molecules could cause polar water to have a higher boiling point than a non polar carbon dioxide?
December 1, 2009

college
This was written the first way. Do you still calculate the same way? Thanks for the help!
November 29, 2009

college math
Decide whether the pair of lines is parallel, perpendicular or neither. 5x+3y=4 3x+5y=5
November 28, 2009

algebra
Train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 mph and B is traveling at 120 mph. Train A passes a station at 9:10 pm. If train B passes the same station at 9:25pm what time will train B catch up with train A?
November 28, 2009

algebra
Train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 mph and B is traveling at 120 mph. Train A passes a station at 9:10 pm. If train B passes the same station at 9:25pm what time will train B catch up with train A?
November 26, 2009

statistics
How do you solve this problem? physical therapy reported that it has been estimated that 80 percent of all lower back pain cases are caused by weak trunk muscles. if 15 patients with lower back pain are examined, what's the probability that 1. exactly 10 have pain caused ...
November 23, 2009

chemistry
Will tetrahedral [ZnABCD]2+ display optical isomerism?
November 21, 2009

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