Questions Asked on
September 20, 2007

physics
A force vector F1 points due east and has a magnitude of 200 newtons. A second force F2 is added to F1. The resultant of the two vectors has a magnitude of 400 newtons and points along the east/west line. Find the magnitude and direction of F2. Note that
asked by ajo 
Chemistry
A piece of wood sinks in ethanol but floats in gasoline. Give a range of possible densities for the wood?
asked by Charles 
Science
How many chromosomes are in the original cell compared to those in the new cells formed by cell division? a.) the same amout b.) half as many c.) twice as many d.) four times as many
asked by Brittany 
microeconomic
12. In each of the following situations, explain how government intervention could improve society’s welfare by changing people’s incentives. In what sense is the market going wrong? a. Pollution from auto emissions has reached unhealthy levels. b.
asked by dritan 
Social Studies
Rewrite the Mayflower Compact in your own words. We whose names are underwritten, the loyal subjects of our dread Sovereign Lord King James, by the Grace of God of Great Britain, France and Ireland, King, Defender of the Faith, etc. Having undertaken, for
asked by Sonic 
Organic Chemistry/Biology
My text has a review of some chemistry before getting into the biology bit. I have come to a question "what are 3 characteristics/features of an organic compound." My book seems to only have the general they all have carbon. The rest goes into depth about
asked by Lena 
Algebra
Jill has $3.50 in nickels and dimes. If she has 50 coins, how many of each type does she have
asked by Gail 
Trig
establish identity sec 0/1 + sec0 = 1  cos0/sin^2 0
asked by Kay 
French
What is a good site for learning how to speek french for free?
asked by Ali 
Physics
a dentists drill starts from rest. after 5.39 seconds of constant angular accleration, it is rotating at a rate of 2.85E4 rpm. through what angle did it rotate in the process? (i just don't know what formula to use)
asked by matt 
Math
If a building 1 begins with four blocks and increases by three blocks each building, how many blocks will it take to make building 1,000
asked by Gaby 
math
how do you write an open statement involving an absolute value inequality when all you are given is the graph of the solution?
asked by ed 
economics
Suppose a person has a utility function U=YX. What is the minimum level of income required to get a utility of 20? Your answer should be a function of, among other things, Px and Py.
asked by jon 
Science
I need one example of a class one lever that is nothing like scissors (eg. pliers, wire cutters...) and has nothing to do with hammers. Thanks.
asked by Lauren 
French for Mischa
This is what would not post: PLURAL OF NOUNS Most French nouns, like most English nouns, form their plural by adding s to the singular: SINGULAR PLURAL le garçon, the boy les garçons, the boys lfélève, the pupil les élèves, the pupils la feuille,
asked by SraJMcGin 
Managerial Economics
Managerial Economics uses_____to help solve problems. a. mathematical programming b. Statistics c. decision sciences d. microeconomics e. all of the above
asked by John 
managerial economics
The principalagent model of economics concentrates on_____ a. the threat from foreign competition b. the need to manage inventory more effectively c. double entry book keeping d. the potential costs of seperation of ownership control e. the time value of
asked by John 
science
Hey. I need two examples of screws (like the one from the six simple machines) and it can't be a screw, jar lid, or drill bit.
asked by Liandra 
math
48x+99646y=496
asked by carissa 
Science
What is in RNA, but not in DNA? a.) thymine b.) thyroid c.) adenine d.) uracil
asked by Brittany 
Science
If a diploid tomato cell has 24 chromsomes, how many chromosomes will the tomato's sex cells have? a.) 6 b.) 12 c.) 24 d.) 48
asked by Brittany 
economics
suppose a competitive market consists of identical firms with a constant long run marginal cost of $10. Suppose the demand curve is given by q=1000p a)What are the price and quantity consumed in the long run competitive equilibrium? b)Suppose one new firm
asked by michele 
math
Rosita earns money by walking dogs after school and on weekends.She walks Madeline every other day,Buddy every fourth day,and Ernie every fifth day.Today she walked all three dogs.Which dogs will Rosita walk 62 days from today?
asked by kapki 
math please help!
Please help with these 5 problems! I have the solutions but I don't understand how to get them! 1. Perform the indicated operations and simplify: [(2/x)1]/(x^2 4) 2. Subtract and simplify: [12/(x^2 4)]  [(3x)/(x^2 + 2x)] 3. Perform the indicated
asked by anonymous 
english
what is the subject of the sentence...Two lost species are the passenger pigeon and the carolina parakeet.
asked by eri 
Trig
Establish the identity: 1. sin0(cot0 + tan0) = sec0 2. cos0 +1/cos0 1 = 1 + sec0/1  sec0
asked by Kay 
Trigonometry
Establish the identity: (1  cos^2 0)(1 + cot^2 0) = 1 No idea!
asked by Urgh 
biology
will the impact of removing all the organisms in a trophic level be different for different levels?can the organisms of any trophic level be removed without causing any damage to the ecosystem?
asked by beena 
science
what are the problems caused by nonbiodegradable waste that we generate?
asked by beena 
chemistry
"experiment: spectrophotometric determination of the acid dissociation constant of methyl red" 1. Why are matched cells used in the experiment? 2. Why is pH plotted against log([MR]/[HMR])? 3. Why is it right that HMR has a pH equal to 2 and MR to have a
asked by smiley 
Science
What is waste management?
asked by lalith 
Algebra 1
Rewrite the equation y = –3x + 5 as a function of x.
asked by Cynthia 
Algebra 1
The difference of two numbers is 20. The second is 4 less than 3 times the first. What are the two numbers
asked by Anna 
French
I have to fill out this chart, I want to know did i do it correctly, thanks. Etre: Tu es Aimer: Tu aimes Habiter: tu habites s'appeler: tu s'appelles Parler: Tu parles
asked by Mischa 
Geography AS
Why is the distribution of the worlds Population uneven? please could somebody point me in the right direction, it would be a big help. thank you!
asked by Sam 
native american history
Discuss the divisions between the traditionalists and moderate Indians from WWII on. Why does this war help to produce a sharp division between them? How did the actions of the government fully deepen it? Can someone help me break this question down and
asked by elizabeth 
Accounting
At December 31, 2007, before any yearend adjustments, Bollis Company's Prepaid Insurance account had a balance of $2,700. It was determined that $1,500 of the Prepaid Insurance had expired. The adjusted balance for Insurance Expense for the year would
asked by jimmy 
health care and human services
Why is it important for the policy for social security to have clear goals and objectives?
asked by Anonymous 
english
im in year 7 and i am needing help to wright a page a bout ourselfs and i am finding it hard could any one help me by giving me a some things that i could say or even wot 2 say thanx
asked by baybee cc 
algebra question
Give an example of a polynomial with degree 3 such that when factored, it contains the two factors (x+5) and (2x1), i.e., the polynomial looks like (x+5) (2x 1) ( ? ). How many such polynomials you think there are?
asked by Shawn H. 
algebra problem that is causing me headaches
I have no real method for this problem other than trail and error and foil. I have come up with some amny variations until I am on my second sheet of paper! The closet I have gotten to factoring/solving this problem so far is.... #46.) 3t^3+3t^26t
asked by Shawn H. 
Language
Which would probably NOT be heard in a whole language classroom? 1."You can try those words on your own." 2."How do you think it is spelled?" 3."Copy these words from the board." 4."That's great! You spelled phone fon. You heard all the sounds."
asked by Anonymous 
French
When I say I have one brother and he is 27 years old, do I say J'ai un le fr¨¨re or J'ai un fr¨¨re Il a vingt sept ans.
asked by Mischa 
Science/Health
I didn't really know which category to place this into but I have a question hopefully someone can inform me a little. I have been visiting my mother in the nursing facility this week. The resident beside my mother has a pan full of charcoal that was
asked by Anonymous 
math
how do you make 16 2/3 into fraction?
asked by megan 
math
how do you make 16 2/3% into fraction?
asked by megan 
Physics
Michael Jordan's vertical leap is approximately 48in(1.2m). Keeping in mind gravitational acceleration of 9.8m/s2. What is his leap time?
asked by Neshia 
Biology
The base sequence of the gene coding for a short polypeptide is CTACGCTAGGCATTAGACTGGTA. What would be the base sequence of the mRNA transcribed from this gene?
asked by Cindy 
math grade 3
need to draw data sets to find the mean. I know how to use this putting the numbers in order from least to greatest, but how do I draw this?
asked by Joel 
physics
the tub of a clothes washer goes into its spindry cycle starting from rest and reaches an angular speed of 6.50 rev/s in 7.85 seconds. at this point, the person doing the laundry opens the lid, and a safety switch turns off the washer. the tub then slows
asked by matt 
Science
What are 5 differences between Vertebrates and Invertabrates
asked by Ali 
Science
What are some similaraties between Vertebrates and Invertabrates
asked by Ali 
Biology
What are needed for humans to be able to digest?
asked by Olivia 
math
The difference of two numbers is 9. The sum of 3 times the greater number and 4 more than the lesser number is 51. What are the two numbers? I do not get this question... I have tried many times, but can not get it.. please help! thank you.
asked by Ellen 
english
how do you know when to capitalize?
asked by Jackson 
english
when do you capitalize in the phrase plains of the west
asked by Jackson 
Algebra 1
What is rational and irrational?
asked by Ashley 
marketing
Hello i really need help for this 2 kestions, can someone help me what impact can a credit policy decision have on ROA and expected LTVA? What ipact can a coop dollars have on the contribution income?
asked by miaaa 
Ethic
Business invest time to attract customers, but some customers are simply not worth having. So some business think that they should fire the customers they lose money on. Is it acceptable to fire customers who cost you money? Is it acceptable for the
asked by Mark 
Elem. Ed.
Please let me know if you agree with my answers to these two questions. 1.Hannah's mother said,"Hannah is such a "pencilandpaper" kid." It is likely that Hannah: A. will be an artist. B. will learn to write,forming her letters perfectly. C. will be a
asked by Anonymous 
caclc
why does sinx/x=1
asked by Anonymous 
Social Studes
Why do you think the Pilgrim leaders thought they needed something like the Mayflower Compact?
asked by Sonic 
Social Studes
What different reasons might people have had for sailing to America with the Pilgrims?
asked by Sonic 
Social Studies
What sigificance did the Mayflower Compact have for American governmemt?
asked by Sonic 
World History
Rivers acted as a powerful restraining force, particularly on Sumerian political development. Discuss and explain this statement by making reference to the relationship between the physical environment and politics.
asked by Deborah 
Math
The registration code for a new softwear game you purchased consists of a string of 3 letters followed by 5 digits. How many different registration codes are possible? If you lost your registration code and had to quess, what is the probability that you
asked by Aisha 
Math
Your favorite CD consists of 12 songs. If you play the CD randoming on your CD player, how many play list are possible?
asked by Aisha 
World Literature
For an essay, I'm using the quote “One Ring to rule them all, One Ring to find them, One Ring to bring them all and in the darkness bind them” (The Fellowship of the Ring, page#). I'm not sure what to put for the page number because the quote is in the
asked by Kate 
Math
Each division of the NBA HAS 7 teams. How many different division standings are possible at the end of the season?
asked by Aisha 
Science
How might the damming of a river affect an estuary at the river'smouth?
asked by Korey 
science
A liquid is usually _____ a gas. A denser than B less dense than C the same density as D lighter than
asked by Alex 
CHEMISTRY
Is it possible to obtain pure (200proof) ethanol using fractional distillation from a fermentation mixture that contains equal amounts of water and ethanol? Explain your answer.
asked by Delli 
pHYSICS
Packages dropped by planes in the olden days didn't have onboard guidance or propulsion systems such as are found today. The path of the package was determined by the initial veloctiy (of the person that dropped that the package) and the acceleration due
asked by McSmarty 
Chemistry
would the density of a person be the same on the surface of earth and on the surface of the moon? explain?
asked by Charles 
chemistry
do you think that determining the volumes of your metal samples by measuring their dimensions and calculating would be more accurate or less accurate than determinging these volumes by water displacement?
asked by Anonymous 
Chemistry
A shiny gold colored car of metal weighting 57.3g has a volumes of 4.7cm^3. Is the bar of metal pure gold?
asked by Charles 
precal
How do you work inverse functions alebraically?
asked by chris 
HEALTH
I HAVE TO DO A PROJECT ON FITNESS OR NUTRITION.. WHAT IS THAT AND WHAT DO I DO?
asked by Hannah 
Chemistry
The density of water is 1.0 g/mL. How many deciliters of water will fill a 0.5L bottle?
asked by Charles 
algebra 2
piecewise function : g(x)=/x/ +3 please help me solve this
asked by melissa 
Calculus...
How can I use the "angle addition formula" and the formula "limit of x approaching 0 of sin(x)" to show that the limit of x approaching 0 sin(a+x) = sin(a) for all a?
asked by Shelli 
Beginning Chemistry
I am really confused weith sig. figs. and it would really help if someone could check my answers. My answers are after each problem Determine the number of sig. figs. in the following (a)12.7040g  6 (b)200.0 cm  4 (c)276.2 tons  4 (e)4.00 x 10^3  3
asked by Sadie 
economics
Suppose 15 peaches and 20 oranges need to be divided between fred and ethel. Fred's utility function is U=Max(#of peaches, #of oranges) ethels utility function is U=Max(2# peaches, # of oranges). Carefully draw a graph showing the set of Pareto efficient
asked by jon