Questions Asked on
January 13, 2007

physics torque
1. Find the magnitude of the torque produced by a 3.0 N force applied to a door at a perpendicular distance of 0.25 m from the hinge. 2. A simple pendulum consists of a 3.0 kg point mass hanging at the end of a 2.0 m long light string that is connected to
asked by Anonymous 
Physics
1. The efficiency of a squeaky pulley system is 73 percent. The pulleys are used to raise a mass to a certain height. What force is exerted on the machine if a rope is pulled 18.0 m in order to raise a 58 kg mass a height of 3.0 m? So to find the force
asked by Anonymous 
Science
Natural rubidium has an average mass of 85.4678 amu and is composed of isotopes 85Rb (mass = 84.9117 amu) and 87Rb. The ratio of the isotopes 85Rb/87Rb in natural rubidium is 2.591. What is the mass of 87Rb? Let x be the fraction of the Rb atoms that are
asked by Gil 
Chemistry
2. You have a sugar solution (solution A) with concentration x. You pour onefourth of this solution into a beaker, and add an equivalent volume of water (solution B). a) What is the ratio of sugar in solutions A and B? b) Compare the volumes of soutions A
asked by Jon 
Calculus
How do I rewrite log4 1=0 as an equivalent exponential equation? How do I rewrite 4 to the 2 power = 1/16 as an equivalent logarithmic equation? Any help is greatly appreciated. If 4 is the BASE of the logarithm, then log (1) = 0 means ...4 4^0 = 1 4^(2)
asked by Abby M. 
british idioms
are these idioms british? pig in a poke, back to basics, back to square one, to sling one's hook, a baker's dozen, gone for a burton and break one's duck i also have to make some tasks about them..can anyone give my an idea?should i make a quiz or
asked by alli 
religion,help
I have to also find the sacred text so this is what i have: for Hinduism = the vedas which are the rig veda, sama veda, yajuir veda, and atharva veda. for Confucianism= they were by the chu shi (11301200 CE) during the sung dynasty. which are the Si Shu
asked by Kailin 
Weather
what is 34f in celcius C= 5/9 (F32) 32F is the freezing point of water, so 34F ought to be close to zero in C. Do the math.
asked by Jaylen 
English
Hi, I am analyzing poetry in my English class, and I have a? on Henry Wadsworth Longfellow’s poem, A Psalm of life. I have to say if it is emotional or physical. I think this poem is emotional, but I do not know how to explain that it is.
asked by Larry 
math, help
how do i write the equations so i can solve it i will do the solving but help me out with the equation please.for the following: Four pencils and five pens cost$2.00. THree pencils and four pens cost $1.58. Find the cost fo a pencil and the cost of a pen.
asked by jasmine20 
HCl  Chem
Assume you had a very magnified view of a solution of HCl that allowed you to "see" the HCl. Draw this magnified view. If you dropped in a piece of magnesium, the magnesium would disappear and hydrogen gas would be released. Draw this out using symbols to
asked by Gil 
Math
What are the solution sets of the following 3 problems,the square root of x squared + 3x = x3, the square root of 3x + 10 = x + 4 and finally the square root of 8x  2 = the square root of 2x? Help much appriciated. I will one as an example. sqrt(3x + 10)
asked by Joseph B. 
Chem
Circle the letter of the unit of mass commonly used in chemistry that equals 1/1000 Kilogram. a)gram b)Milligram c)milliliter Kilo is 1000. What is 1/1000 of 1000?
asked by Dennis 
biology
Why must plants have both mitochondrion and chloroplasts? Thanks in advance. I think it has something to do with the fact that chloroplasts convert sunlight into chemical energy. Does that sound right? One of the most widely recognized and important
asked by April 
International Business
small companies typically have difficulty competing against large multinationals when their governments take part in regional trade blocs. What could governments do to help their small companies compete after the formation of such blocs? Thanks for any
asked by Jo 
religion,help
what is a good website where i can find the countries of origin for: hinduism buddhism confucianism daoism now one more question for right now. when they are asking for the country of origin do they refer to where did thAT NAME COME FROM? OR WHAT IS IT
asked by Kailin 
Essay help
I need to write an essay outline on "phishing." (Phishing is a form of identity theft where a scammer sends someone an email that appears to be from a legitamite organization and then tricks him/her into providing personal information like PIN numbers,
asked by Lucy 
math
Given: f(x)=log 5 x what is the value of f(125) and f(1/25)? Totally lost! I assume you mean f(x) = log (5x), not log 5 * x. If this is the case, then f(125) = log 600 and f(1/25) = log (1/5) If the base of the logs is 10, then log 600 = 2.778..
asked by Hannah 
HIstoRy
My question is what is really dictator,, dicatorship ,, Totalitarianism,, Communist didcatorship and Facism start here: http://www.onelook.com/
asked by Help please :( 
early childhood questionplz help
Mrs.Monroe,the crossing guard,is helping children cross the street. Spencer runs ahead of the group instead of waiting for the walk signal from Mrs. Monroe.Frantic,Mrs. Monroe yells at Spencer,"You are not paying attention today Spencer!" Which of the
asked by Patty 
Chemistry (Check)
Classify each of these statements as always true, sometimes true, or never true 11)sometimes true 12)Never True 11)Scientific notation is used to express large numbers in convenlent form. 12)Siginificant figures include all the digits that can be known
asked by Bryan 
math,correction,help
please can someone tell me where i am wrong. Directions: Translate to a system of equations and solve. Problem: Colored copies cost 10cents per copy and white copies cost 5cents per copy. Sandy made 400 copies, some of which were colored and the rest
asked by jasmine20 
Please Help Very Urgent
Hello, I am new to this website. I visited this website few times.I have some HEALTH questions.I am sick since 5 days.This is about my HEALTH.Please answer my questions if you know the answer to it! My problem is: I was chewing the BIG RED CINAMMON FLAVOR
asked by Kaveri 
egg protection device
Hi. I need to know how to make an egg protection device out of straws and duct tape. Thanks. Experiment! Experiment! Experiment!
asked by Anonymous 
Math (correct answer?)
I believe that the answer to the square root of x^2 + 3x = x3 is X = 3, x=3 but I'm not sure. I believe the answer to the square root of 8x 2 = the square root of 2x is x=2 again I'm not sure. why are you posting under several names? I like making up
asked by Joseph B. 
religion, help
what does it mean when they want the historical figures and events. Can you provide me with what should the answer consist of towards what they are looking for. so i can look for it. also for central believes does that mean they want their main believe not
asked by Kailin 
math
Show that if x is a nonzero column vector in R^n, then the nxn matrix: A = I  2/x^2 * xx^T is orthogonal. Notation key: x = norm of x x^T = transpose of x I = identity matrix. Let me try to convince a math student to use "physics" notations that
asked by mathstudent 
Climate Graphs
I need a climate graph of Fredericton, New Brunswick, Canada present time, so about 20002006. I have looked everywhere for stats or graph. I also need an older on for comparision perhaps the 1990s. Where can I find these. :( This site has climate graphs
asked by London 
math,algebra
what is the difference and similarities if solving an equation with varibles in the equation if it had 1 or 2 or even 3 variables? Here is one: Money left in Wallet= money earned + money found  money lost  money spent. I don't understand? can you please
asked by jasmine20 
biology  temp on enzymes
I have a practice question and I need some help on it because I am rather confused! 'Investigation into the effect of temperature on enzyme activity' Casein is an insoluble milk protein found in powdered milks Casein forms a whits suspension which clears
asked by kim 
phyiscs rube goldberg machine
Identify two types of simple machines that are included in a Rube Goldberg machine. Pick any simple machines: For example, wedge, and lever.
asked by Anonymous 
Precalculus
I'm studying for my precalc exam and have completed 42 practice problems. I have 3 I need to answer that I can't. Please help. What is the base of the function G(x) = log subscript b x if it's graph has points (16,4)? Using the properties of logarithms how
asked by jackie18 
math retry 2
8^x = 16^x+2, x+2 2=0 8^x =16^x+2, 2 x 8 = 16 log sub 5 (2x+3)=2 2(7/2)+3=2 log sub 5 (2x+3)=2 log sub 5 =11 The first and second lines make no sense whatsoever. The last is even more confusing. Watch 8^x = 16^(x+2) 8^x = 8^2(x+2) x= 2x+4 solve for x. On
asked by Sara L. 
physics
I was wondering if this formula is dimensionally correct: v = Square root FX/m divided by mass v= m/s F= kgm/s^2 X = meters divided by mass (kg) v = root kgm * m s^2  kg My half solution: m/s = root kgm^2 s^2  root kg m/s = m/s root kg  the
asked by EinstNewtLieb 
precalculus
What is the domain and range of log3 (1x)? I will be happy to critique your thinking. To assist you, consider log (4) log (0) log 25 Those are to the base 10, changing to another base just changes the numbers, not the function.
asked by emma 
math,algebra
what is a reallife situation that follwos a linear equation, withthe independent variables being years. What would the slope say about the future years. Wood growth in a forest vs time. Wood growth = m * time can you help me understand i don't get still
asked by jasmine20 
French
I just have a few questions ok: #1) How do you say "we ate" in French? I think it is nous mangons but that didn't look right so I want to be sure. #2)How do you say"we swam" in French? because I thnk it is nous nagons but that doesn't seem right either.
asked by Aubrey 
Math
I believe that the answer to the square root of x^2 + 3x = x3 is X = 3, x=3 but I'm not sure. I believe the answer to the square root of 8x 2 = the square root of 2x is x=2 again I'm not sure. Square both sides of your equation. It breaks down quite
asked by Joseph B 
Econ
A firm faces the following sales function: Q=5,00010P+40A+PA0.8A^20.5P^2 where Q is sales, P is price(dollars), and A is advertising expenditures (in hundreds of dollars). Calculate the price and advertising levels that maximize sales. I don't know what
asked by Jack 
need help in math,
Translate to a system of equations and solve using the addition method. The sum of two numbers is88. The difference is 22.Find the numbers? My answer: I started but i think that i am wrong. x + y = 88 y = x +88 y = 1x + 88 now once i substituted x 1x +
asked by jasmine20 
English
I wanted to know if I had the right idea. In the poem “To My Dear and Loving Husband" by Anne Bradstreet the poem is emotional because she is expressing the love she has for her husband, and it is also physical because the metaphors she uses helps have
asked by Larry 
math help
what or how would i solve the following i don't need the answer i want to do it but how would i solve this. Water pressure (p) in the ocean is 2.3 tons per square inch at a depth (d) of 2miles and 3.45 tons per square inch at depth of 3 miles. How do i
asked by jasmine20 
math trouble
I have 2 problems I need help with using either substitution or elimination method what is the solution set of 3x 2y = 4 and 5x = 2y? Second, Given: log sub a 2 = .4, log sub a 3 = .5, log sub a 5 = .8 what is the value of log sub a .01? On the first, I
asked by Anonymous 
confirm math answers
I have 3 problems I need my answers confirmed for. The solution for log subscript 3 1/9 = x is the solution 1/2? Secondl, what is the solution for 9^2x = 3^x+6 does x=2? Lastley is the answer to 3 ^5x+2 = 81 does x= 2/5? Help sincerely appreciated! The
asked by trish 
precalc
I'm terrible at pre calc, could someone tell me if the solution set for log subscript 2 x + log sub 2 (x1)=1 is the solution 1? Using either the elimination or substitution method is the solution set for 4x + y =11 and 2x y = 7 is the answer (3, 1)?
asked by eragon 
math retry
Is the answer to log sub a 2 = .4, log sub a 3 = .5, log sub a 5 = .8 is it 2.9? Is the answer to log sub 5 (2x+3) = 2 is the correct answer 11? Is the solution to 8^x=16^x+2 is the solution 2? Are you guessing? Something is wrong. Let me see your work.
asked by Sara L. 
work
9^2x = 3^x+6 x+66=0 x+6 6 you subtract 6 which is why I thought the answer was 6 since 0 wasn't right. 9^2x= 3^4x 3^4x= 3^(x+6) 4x = x + 6 solve for x. You need a tutor quickly.
asked by trish 
Marketing Management
Describe a product that entered the market over the past two to three years and succeeded. Why did it succeed? Describe a product or service that you saw (or experienced) fail over the past five years. What factors influenced the failure? How did the
asked by zeta 
mole
how do i find... howmany moles are in a specified mass mols = grams/molar mass
asked by cory 
college application short response
Thank you for anyone that helps me about my college application. (Thank you for your suggestions, Writeacher, I rewrited my paragraph.) In the space provided below, please describe which of these activities has had the most meaning for you, and why. I was
asked by kate 
precalculus
What is the base of the function F(x) = b to the power of x if the graph has points of (1/3, 2)and another off the subject one if g(x)= log 7 x what is g(1/49)? If F(x) = 2 when x = 1/3, and if the !@#$%^&ntio is of the form F(x) = b^x, then 2 = b^(1/3)
asked by emma 
precalculus
I posted a problem earlier and made a mistake the question is what is the domain and range of f(x)= log subscript 3 (1x)? Sorry! The answer is the same. The domain and range will be the same as if it were log base 40.
asked by emma 
Anne/English/2 Jan
To Anne: I'm sure I missed your posting of Jan 2 because it was under ENGLISH! I just found it this morning by accident and posted an answer for you!
asked by SraJMcGin 
college application short response
I wish you could help me the short answer of my college application essay. Many thanks Question: Please briefly elaborate on one of your activities. I was elected as the President of the class of 2007 in high school. My job of being a President was to
asked by kate 
religion,help
what do they mean when they want the nature of god for hinduism,buddhism, confucianism, daoism. What are they asking for also when they want the ethics and morality. The nature of the gods in these religions are their major characteristics. You need to
asked by kailin 
To:Bobpursley
My face is not swollen. It is swollen inside my mouth. Please see a doctor as soon as possible. We are not doctors and cannot give you medical advice. You need to see a doctor in person to find out what is wrong.
asked by Kaveri 
Calculus II
Does anyone know of a very good website that can teach me to better understand the disk, washer, shell method to finding volume of irregular figures (solid of revolution)using of course, integration techniques (such as when to recognize integration with
asked by EinstNewtLieb 
College Scholarships
I plan on attending a college in the fall with a tution of $26,000, needless to say I cannot afford this and my parents are in no situation to assist. If anyone knows of any websites that have info/applications for scholarships I would be most greatful. I
asked by Kellie 
math
What is the domain and range of g(x) = (1/3) to the power of x? The domain is all real numbers ( infinity to infinity) The range is zero to infinity
asked by mike 
SCIENCE HELP!!??
HI I Like you to help me with my research on Attraction and repulsion of electrical charges If you would give me any links or websites and thank you alot thanx Check these sites. http://psych.hanover.edu/Krantz/neural/charge1anim.html
asked by amy 
poetry
can you reccommend 4 humourous poems by different poets http://pages.ripco.net/~mws/Poetry/24.html by Thomas Hardy http://www.silentwords.com/Humorous.html http://dir.yahoo.com/Arts/Humanities/Literature/Poetry/Poetic_Forms/Closed_Forms/Limericks/
asked by pedro 
united nations
Aphabetically, which nation is the first in the United Nations? http://www.un.org/Overview/unmember.html
asked by Holly 
Chem
What is a volume of 1 L also equal to? 1 liter = 1000 cubic centimeters It equals about 1.057 quarts
asked by Dennis 
pre calculus
I believe that the domain for f(x) = log subscript 3 (1x) is x is a real number I think the range for the same equation is y > 1 . the domain of log (1x) would be such that 1x > 0 x>1 x < 1 whereas the range would be y is any real number Have you
asked by emma 
math
What is the value of f(125) and (1/25) if the equation is f(x)= log subscript 5 x? Don't have a Clue! look at the answer I gave emma in the post above this one
asked by Hannah 
precalc
If g(x = log subscript 7 x then what is the value of g(1/49)? I believe it's 1/2 but I'm not sure. no recall that log 1/49 (base7) = log 1  log 49 = 0  2 =2
asked by emma 
precalc
So if f(x) = log subscript 5 x then the value of 125 is 3 and the value of 1/25 is 2. Right?
asked by Hannah 
biology(animal cell)
i need to know what a vesicle of an animal cell is and it would be nice to have an anology for it (a comparison between the function but different things) http://www.newton.dep.anl.gov/askasci/zoo00/zoo00296.htm
asked by gr8 
Math (verify answer)
So if f(x) = log subscript 5 x then the value of 125 is 3 and the value of 1/25 is 2. Right? No, yes.
asked by Hannah 
physics
How does an increase in mass affect the magnitude of gravitational force? Force= mass*constant If mass increases, the force....
asked by Anonymous 
Math Exam Tuesday
My friend swears by your site so I thought I'd confirm some of my more difficult answers for my math practice exam. Is the solution set for 8^x = 16^ x+2 is it 2? Next is the solution set for log subscript 5 (2x + 3) = 2 is the answer 7/2? Lastly is the
asked by Sara L. 
correct answer now?
Is the solution for log sub 3 1/9 = x does x = 2? Is the answer for 9^2x = 3^x+6 is it 0? Yes, No
asked by trish 
once more
Is the answer to 9^2x = 3^x+6 is it 6? No. Let me see your work. 9^2x= 3^4x
asked by trish 
math
Thanks. I will.
asked by Sara L. 
Chem
A Kilogram was originally defined as the mass of ___________. The kilogram was originally defined as the mass of one litre of pure water at standard atmospheric pressure and at the temperature at which water has its maximum density (3.98 degrees Celsius).
asked by Dennis 
math
I am having problems with algeba I have to have this paper done before Tuesday can you help me post what you need help in.
asked by Harold Taylor 
ms.sue,religion help
I am very very very confused. okay can you please explain to me what these questions are that you think my teacher wants from the students.For the following: this is all about eastern religions: religions are hinduism,buddhism,confucianism,daoism i have to
asked by kailin 
Thank you (bobpursley)! (no reply needed)
No reply needed.
asked by EinstNewtLieb 
Geometrical Formula Help
Hi! Can anyone please send me a link or show me how to find a formula that will find any point between two other points? Thank you, your help is greatly appreciated :)
asked by Lena 
French for Aubrey
Sorry, for some reason it did NOT print. I'll try again!
asked by SraJMcGin