Questions Asked on
October 11, 2008

chemistry
(You may have seen this before) A crude oil burned in electrical generating plants contains about 1.2% sulfur by mass. When the oil burns, the sulfur forms sulfur dioxide gas: S(s) + O2(g) > SO2(g) How many liters of SO2 (d = 2.60 g/L) are produced
asked by starlight 
Physics
An athlete at the gym holds a 4.33 kg steel ball in his hand. His arm is 75.0 cm long and has a mass of 5.28 kg. What is the magnitude of the torque about his shoulder if he holds his arm straight out to his side, parallel to the floor?
asked by Amberly 
Government
1) The portion of the population selected to participate in a poll is known as the a. public b. population c. deliberative group d. sample e. focus group 2) A sample that does not overrepresent any portion of the population and whose responses can
asked by sam 
chemistry
How many electrons are actually in the composite band for Fe ?
asked by Anonymous 
chemistry
How long would it take for 1.50 moles of water at 100.0 to be converted completely into steam if heat were added at a constant rate of 19.0 j/s ?
asked by Anonymous 
Physics
A man of mass 69.5 kg stands on a scaffold supported by a vertical rope at each end. The scaffold has a mass of 22.3 kg and is 2.4 m long. Suppose the man stands to the right from the middle of the scaffold that is a distance one sixth of the length of the
asked by Anonymous 
Physics
The moon has a period of 27.3 days and a mean distance of 3.90 x 10^5 km from the center of Earth. a) Use Kepler's laws to find the period of a satellite in orbit 6.70 x 10^3 km from the center of Earth  I was able to do this and the answer i got was:
asked by Tanveer 
Physics
What is the gravitational force vetween 2 15kg packages that are 35cm apart? What fraction is this of the weight of one package?
asked by Tanveer 
english composition
what is the thesis statement in Why we crave horror movies?
asked by Andrea 
re yr8
i need to write an essay about if jesus existed.it is similar to the one that someone asked for help about a few weeks ago. the question im stuck on is i need to ask questions about that jesus did exist and answer them. the question i have come up with is
asked by starr 
Word problem
Edward can paint a bedroom in 3hr. Jeb can paint the same room in 3.75 hours. How long will it take them, working together, to paint the bedroom?
asked by Jennifer 
physics
A person pushes a 14.5 kg lawnmower at constant speed with a force of 88 N directed along the handle, which is at an angle of 45o to the horizontal. What is the force required to accelerate it from rest to 1.5 m/s in 2.5 seconds?
asked by Steve 
chemistry
Identify common properties of the molecules in a compound with a liquid crystal phase contain ions contain aromatic groups contain polar groups have long molecules
asked by Anonymous 
PreCalculuscheck answers
How many ways can 5 students be chosen from a group of 4 juniors and 6 seniors to be on the prom committee if exactly 3 students must be seniors? Answer: 5400 Find the probability of getting a sum of 5 on the first toss of two number cubes and a sum of 6
asked by Lucy 
Personal Finance
Marcia and Phil Helm, a couple in their thirties, have been married for several years. They have no children, and each has a professional career. Marcia is a trainee for a management position at a large department store, and Phil is an engineer at an
asked by Sue 
8th grade, history ?#3
How did spain establish territorial claims in north america?
asked by Debra 
Business Communication
Your boss wants to send a brief email message welcoming employees recently transferred to your department from your Hong Kong branch. They all speak English, but your boss asks you to review his message for clarity. What would you suggest your boss change
asked by Emmanuel 
math
write a system of equations with the graph solution (2,1,0).
asked by anonymous 
Physics
A bird watcher meanders through the woods, walking 0.35 km due east, 0.65 km due south, and 2.05 km in a direction 31.0° north of west. The time required for this trip is 3.50 h. Determine the magnitude and direction (relative to due west) of the bird
asked by Kevin 
math
what is 5/6 x 1/3 x 0.8 x 9/8??
asked by Jackie 
History
How can I persuade fellow colonists during the American Revolution to boycott British goods?
asked by Mike 
spanish play
In the spanish play Punishment without Revenge by lope de vega I have to find the answers for this question. What are the various factors that contribute to the tragic result of the events in the play? I am sure that one factor would be how the duke wants
asked by Brooke 
Stat
PLEASE CHECK AND SEE IF I HAVE THESE ANSWERS CORRECT. T F 1. Hypothesis testing is a procedure based on sample evidence and probability theory to decide whether the hypothesis is a reasonable statement. ANSWER (True) T F 2. For a onetailed test using the
asked by Mary 
com220
the readings for the week listed five questions that can be used to advantage in seeking to evaliate the reliability of online sources. 1.what is the purpose and affiliation of the organization or author related to the article? 2.what are the author's
asked by lisa 
Personal Finance
1. Joe won a lottery jackpot that will pay him $12,000 each year for the next ten years. If the market interest rates are currently 12%, how much does the lottery have to invest today to pay out this prize to Joe over the next ten years? 2. Mary just
asked by Sue 
Personal Finance
Nancy Tai has recently opened a revolving charge account with MasterCard. Her credit limit is $1000, but she has not charged that much since opening the account. Nancy hasn't had the time to review her monthly statements as promptly as she should, but over
asked by Sue 
English
1. The work is too difficult to do. 2. The work is so difficult that I cannot do it. (Does #1 mean #2? Are both the same?) 3. Mother Teresa...... (Why do you use 'Mother' before Teresa, the famous nun who passed away?) 4. I hope to be a scientise. 5. I
asked by John 
physics
A bag of cement of weight 370 N hangs from three wires Two of the wires make angles è1 = 58.6° and è2 = 23.8° with the horizontal. If the system is in equilibrium, calculate the tension T1.
asked by Vishnu 
8th grade, history
What was life like in spanish settlements in the caribbean and south america?
asked by Debra 
biology
In the search to discover the agents that caused mad cow disease, scrapie in sheep, and CJD and kuru in humans, the diseased brain tissues were filtered and still found to be infective, indicating they are not bacteria but either viruses or chemical
asked by Brooke 
Science
What is the relationship between the frequency of a light wave and its energy and the relationship between the wavelength of a light wave and it's energy?
asked by Mariz 
FinanceOptions
I am having trouble with options. Long call, i know it means you buy the right to buy an asset. Long put, you buy the right to sell an asset. What is confusing the the short call and short put. What does it mean you sell the right to buy and sell the right
asked by Evan 
Functions
If f(x)=2x^49x^3+6x5, then use synthetic division to find f(6) What is synthetic division? How do I solve this?
asked by Jennifer 
com220
the question is based on the above questions, Elaborate on the authorship pn one of the sources that you consider reliable. My answer was do you think that what are the author's credentials would be consider a reliable. I don't have to anser the those
asked by lisa 
english yr 8
i need to research 4 different newspapers. which i have done. im having trouble with what type of language is used in the newspapers. i don`t know what it means. thanks
asked by nathan 
msg bobpursley
thanks for your help on the newspaper question.it was a really big help
asked by nathan 
Physics
A first order exponential decay can be written as A(t)= Ae^(t/r) where A(t) is the amount (of substance) after time t, A is the initial amount at time t=0 and r is the decay time. The fall time is defined as the time in which A(t) falls from 90% to 10% of
asked by Beth 
sociology
i have got a sociology question..and i don't know on what really to talk.The question is that..'To What extent class divisions are disappearing' i hve talk on embourgeoisement, proletarianization.changes from traditional w.class to new working class...Can
asked by celly 
math
Hello, I need help with this math problem 4+3/3 + 5+1/5 its a fractions question how do I figure out the answer, thanks
asked by Ashley 
math
Need help with algebra question If c= 5/9 (F32)and F is 77 then what is c the 5/9 reprsents a fraction, I am no good in algebra and need help how to get the answer and the problem, thanks
asked by chris 
American History
What was the name of the treaty that NE negotiated with Spain shortly after the American Revolution that would increase American trade in NE, but gave Spain control of the Port of New Orleans, Screwing over the South West. This was an example of
asked by Phil 
8th grade, history ?#2
What type of relationship exsited between the spanish and native americans living in the caribbean and south america?
asked by Debra 
8th grade, history ?#5
What type of relationship exsited between the spanish and native americans living in north america?
asked by Debra 
8th grade, history ?#6
How did france establsi hterritoral claims in north america?
asked by Debra 
8th grade, history ?#8
What type of relationshi exsited between the french and native americans living in north america?
asked by Debra 
US History
why were the sons of liberty considered as good citizens?
asked by Mike 
algebra
I have a problem. It says to simplify: t2/t+4 x 4t+16/2t^28
asked by Jennifer 
statistics
1000 significance tests are performed using alpha = .05. Assumimg that all null hypotheses are true, about how many of the test results would you expect to be statistically significant?
asked by brian 
math
solve the system by elimination. 6x6y4z=10 5z+4yz=12 2x+3y2z=9
asked by anonymous 
Science
What happens when a wave strikes a barrier? What happens when a wave strikes a barrier at an angle?
asked by Mariz 
chemistry
reaction between iron fillings and su lphur will form
asked by sara 
geometry/algebra
I have tried to work this several ways and can not get the answer of 5 find x if the slope of a line passing through points A(4,3) and B(x,7)equals 4
asked by Rose 
5th grade science
sciencewell im learning about the diffence between a vascular and nonvascular plant and i don't get it so if you can help.thanks 5th grader
asked by fithgrader 
critical thinking
Which of the following is most accurate? A) An appeal to precedent is a type of inductive generalization. B) An appeal to precedent is a type of analogy. C) An appeal to precedent is a type of disjunctive syllogism. D) An appeal to precedent is a type of
asked by Joe 
eth 125
7 to 10 leaders or legislative events from both the Civil Rights and Black Power movements
asked by Anonymous 
Economics
If the price of apples rises from $3.50 a pound to $4.00, and my consumption of apples drops from 30lbs. of apples to 20lbs.; what would be the price elasticity of demand of apples. My figures are all wrong; how would I calculate it.
asked by Jan C 
Physiology
Glial cells normally lose their mitotic ability prior to birth True or False Which of the following is NOT a function of astrocytes? a. can take up NT from a synapse b.can stimulate or inhibit neurons c.needed to form synapses in the CNS d.Phagocytose
asked by natash 
Health
This is not homework but couldn't find this I wan tot know if you can take to much potassium gluconate? I once had to wait on one of my surgery's because my potassium was to low and know the risk of that but can you take to much and what will happen if you
asked by lois 
History
Is sectionalism a social issue or a political issue?
asked by Matt 
8th grade, history ?#4
What types of permant settlements did the spanish establish in north america?
asked by Debra 
8th grade, history ?#7
What was life like in french settlements in north america?
asked by Debra 
calculus help
Is there any good calculus websites out there that teach every possible derivative there is? Such as the basic rules of differentiation, product and quotient rules, chain rule? ((I'm really bad a understanding the square roots. )) My book gives me examples
asked by student01 
Health
Has specialized medicine made an overall positive or negative impact on the quality of patientcentered health care delivery?
asked by Aliona 
physics
An athlete at the gym holds a 4.33 kg steel ball in his hand. His arm is 68.7 cm long and has a mass of 4.69 kg. What is the magnitude of the torque about his shoulder if he holds his arm straight out to his side, parallel to the floor? Torque = massball x
asked by Vishnu 
physics
A pendulum consists of an object of mass 1.07 kg that hangs at the end of a massless bar, a distance 1.14 m from the pivot point. Calculate the magnitude of the torque due to gravity about the pivot point if the bar makes an angle of 22° with the
asked by Vishnu 
college
Four nutritional or physical exercise goals o Actions taken to meet each goal
asked by ray 
math
Write the following as a common fraction or a mixed number. Write your answer in lowest terms. 0.44
asked by Trac 
science
i need help making a catapult. im gonna check my pc tomorrow
asked by Robby 
algebra help
Hello, I need help figuring out this algebra problem. If x=7 and y=2 then x3y= thanks
asked by Brooke 
Health and Human Services
How can a person apply knowledge that they have gained to a future career in Health and Human Services?
asked by Ree 
government
one advantage of direct contact between elected offials and the public verus the use of public opinion poll is that direct contact a. is always more accurate than a poll b. makes it less likely that certain public concerns will be overlooked. c requires
asked by sam 
english
THE TREATMENT BASED ON THE THEORY OF PRESSURE ON BLOOD VESSELS IS WHAT
asked by aly 
physiology
during the absolute refractory period a supramaximal stimulus can bring the cell to threshold true or false
asked by natash 
Personal Finance
Bernie and Pam Britten are a young married couple beginning careers and establishing a household. They will each make about $50,000 next year and will have accumulated about $40,000 to invest. They now rent an apartment but are considering purchasing a
asked by Sue 
History
Should Henry the Eigth be seen better than his father Henry the seventh? Why?
asked by Minerva Wisdom 
Geography
I want to write a coclusion of an investigation of bull sharks that i did. Please just tell me how to start and end it. Thanks.
asked by Reni 
year7 re
why do we give chocolate eggs at easter? what do they symbolise.?thanks
asked by poppy 
physics
what is the name for particles in a gas spreading out?
asked by Anonymous 
algebra
I have a problem. It says to simplify: t2/t+4 x 4t+16/2t^28
asked by Jennifer 
PreCalculuscheck answers
Write the equation of the circle that passes through the point (3,4) and has its center at (1,2). Answer: (x1)^2 +(y2)^2 = 8 Thanks for the help.
asked by Lucy 
princple of business
described a functional area of a business production
asked by khrista cyrus 
economics
how do you change the base year of a price index?
asked by ari 
Algebra
(t2)/(t+4) x (4t+16)/(2t^28)
asked by Jennifer 
PreCalculuscheck answers
Find the degree measure of the central angle whose intercepted arc measures 8cm in a circle of radius 15cm. Answer: 401.07 degrees
asked by Lucy 
Math
I need help on how to solve equations with variables on both sides. 1. 30=8  2x 2. 98  4b= 11b 3. 3p  8= 13  4p 4. 9  2y/7 = y 5. 1/3(12  6x) = 4  2x
asked by Adriana 
Project Management
MS Project 2003 as a Project Management Tool Is it appropriate to use a project management tool for all projects, no matter what size they are?
asked by animal 
math
hey i need hep w/ the mean and median HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!thanks
asked by fithgrader