Questions Asked on
July 26, 2010

Chemistry
one neutron is added to the nucleus of an atom of Carbon12. how has the atom been changed? It has a greater atomic mass?
asked by Anonymous 
Math
a pudding recipe for 50 people calls for 4 cups of sugar. each bag of sugar contains 6 cups. how many bags of sugar will be needed to make this recipe for 300 people?
asked by Anonymous 
English
What is the correct comma placement for this sentence? The plump old white cat basked in the warm sunlight. a)plump, old, white cat b)plump, old white cat
asked by Anonymous 
Geometry
Polygon ABCD is similar to polygon WXYZ. If AB = 8, WX = 12, and CD = 10, find YZ.
asked by Sam 
gen physics II
A beam of light is incident upon a flat piece of glass (n = 1.50) at an angle of incidence of 45°. Part of the beam is transmitted and part is reflected. What is the angle between the reflected and transmitted rays?
asked by Alinkashia 
Chemistry
Does anyone know the condensed structured formula in the following reaction: a.CH3CH2CH=CH2+HOH>H+ Thank you.
asked by Beth 
The continental drift theory
Explain how the following pieces of evidence supported the continental drift theory. a) matching continental margins b) similar animal fossils in South America and Africa c) similar rock types and structures in North America and northern Europe d) magnetic
asked by Anonymous 
chemistry
Any reaction that absorbs 150 kcal of energy can be classified as ________.
asked by felicia 
Mathlinear programming
Which of the following mathematical relationships could be found in a linear programming model? Choose YES if the relationship could be, and NO if it could not. A. YES B. NO 1. B2A + 7B = 45 2. 4A  B ¡Ü 10 3. A + \ 2B ¡Ý 22 4. 3A + 2B  AB = 12 5.
asked by Donna 
gen physics II
If a doublyionized oxygen atom (O–2) is accelerated from rest by going through a potential difference of 20 V, what will be the change in its kinetic energy?
asked by Alinkashia 
Chemistry
Are these an alcohol, phenol, an ether or a thiol. CH3CH2CH2SH CH3CH2CHCH2CH3 Any help is appreciated, I am trying to get the hang of this.If I know these two, I believe I will be able to do all the other ones I have to. Thanks.
asked by Beth 
EARTH SCIENCE
Briefly discuss stellar evolution. What forces are opposing one another throughout the life of a star? How do these forces influence the various stages of a star's life cycle
asked by Anonymous 
chemistry
1.)KMnO4+H2SO4+NaHSO3> 2.)KMnO4+NaOH+NaHSO3> 3.)KMnO4+NaHSO3> Write the net ionic equations for the reactions
asked by jo 
science
How much would be appropriate for wealthy countries to contribute to global health? Why should we do more than we do now? What’s in it for us?
asked by tonya 
statistics
In the July 29, 2001, issue of The Journal News (Hamilton, Ohio) Lynn Elber of the Associated Press reported on a study conducted by the Kaiser Family Foundation regarding parents’ use of television set Vchips for controlling their children’s TV
asked by Marilyn 
math
leon shoped for school supplies. when he got home he had $23.50 left. he spent 3 times that much at school suplies . write an expresstion that will tell how money lean had before he went shopping. i think its $70.50
asked by kamleen 
Chem 11
which of these elementsNa, Si, Cl, or Cs has: a)the highest first ionization energy? b)the smallest radius? c)the most metallic character?
asked by Anonymous 
Math (Algebra)
How do I find the greatest common factor of a polynomial? When finding the greatest common factor of a polynomial, can it ever be larger than the smallest coefficient and can it ever be smaller than the smallest coefficient? Please explain.
asked by Lynn 
penn foster
the first step to planning a child care center is to.
asked by holly 
College physics
According to Newton's Third Law, for every action there is an equal an opposite reaction. If the current on the wire is such so that the magnetic force on the wire points upward, what must be true? 1. There is no force on the magnet. All forces act on the
asked by katie 
chemistry
What formula do I use to calculate the mass of KCl that is required to make 625 mL of a 0.200 M solution? Dr Robb the formula you gave me didn't give me the correct answer and I think I did it wrong it is asking for the answer in grams which should be 9.3
asked by Norma 
trig
A Ferris wheel has a radius of 15 meters and takes 20 seconds to complete one full revolution. The seat you are riding in, takes 7 seconds to reach the top which is 35 meters above the ground. Write a sine or cosine equation for the height of your seat
asked by dave 
English II
In Phantom of the Opera What did the first note say?
asked by Betty 
gen physics II
Very large capacitors have been considered as a means for storing electrical energy. If we constructed a very large parallelplate capacitor of plate area 1.0 m2 using paper (k= 3.7) of thickness 1.0 mm as a dielectric, how much electrical energy would it
asked by Alinkashia 
Linear programming
Which of the following mathematical relationships could be found in a linear programming model? Choose YES if the relationship could be, and NO if it could not. A. YES B. NO 1. B2A + 7B = 45 2. 4A  B less than or equal to 10 3. A + \ 2B greater than or
asked by Donna 
Psychology
How do emotional or psychological problems develop in children? What are the roles of genetic, biological, and environmental factors on the development of these types of problems?
asked by Linda 
International Econ.. Please Help!
Practical dicussion of trade policy is dominated by considerations of income distribution. How does trade policy affect income distribution in a country? Discuss.
asked by Mary 
Developmental Psychology
There are a number of ways that emotional or psychological problems can develop in children. Problems can result from anything that disrupts a child's sense of safety and security. This could include things such as an unstable or unsafe environment,
asked by Angel 
Principles of Accoun ting
I have to figure out what basic type of account debited and credited, the specific account, whether the account is increased or decreased, and the normal balance of the specific account. This is the transaction. Purchased used car for $4,000 cash for use
asked by Jamie 
Help
Suppose the U.S is an importer of product X and that there are no trade restrictions. Let us assume that the U.S. consumers buy 1 million units of X each year, of which 400,000 are produced domestically and 600,000 are imported. a) Suppose a technological
asked by Mary 
Physics
"A mass of 3.08kg oscillates on the end of a horizontal spring with a period of 0.323s. What acceleration does the mass experience when its displacement is 2.85m to the right?"
asked by Stuck 
chemistry
In a reaction involving the iodination of acetone, the following volumes were used to make up the reaction mixture: 10 mL 4.0 M acetone + 10mL 1.0 M HCL + 10 mL 0.0050 M I2 + 20 mL H2O A student found that it took 250 seconds for the color of the I2 to
asked by Paul 
english
what are the four types of conflict
asked by sadarie 
Statistics
Exercise #2 As a marketing analyst for Imperial Products, your task is to determine if a new product is worth marketing nationwide. The director of marketing has stated that at least 85percent of the public must express some desire for the product and, for
asked by sam 
statistics 2
A Keynesian Consumption Function: In his famous 1936 book, A General Theory of Employment, Interest and Money, the noted British economist John Maynard Keynes proposed a theoretical relationship between income and personal consumption expenditures. Keynes
asked by sam 
statistics 3
Exercise #4 Quality control problem: According to U.S. News & World Report, a laboratory in Atlanta is processing snake venom for use in medical research. Five processing methods are being tested to determine which is least likely to contaminate the
asked by sam 
Algebra
(60 + 16sqrt(15))/(60 + 17sqrt(15)) i tried dividing but got stuck thanks
asked by Kate 
Chemistry
what are the condensed structured formulas of the products in each of the following reactions: cyclohexane+ H2>Pt and cis2butene+ H2 >Pt
asked by Bobby 
child
Rank the perspectives of language development in order of importance. Explain why you feel your first choice is the most important.
asked by tammy 
algebra
How do I rewrite the following as an equivelant logarithmic equation. y^t=x
asked by Anonymous 
chemistry
According to the experiment procedure, given that the NaOH solution has a concentration of 0.100M, and that the vinegar (acetic acid) has a concentration of 5.0% m/m (mass percent), what volume (mL) of titrant would be required to reach the “equivalence
asked by sheyla 
Chemistry
What is the difference between regioselectivity and stereoselectivity? I was just reviewing and now I don't quite remember the difference, and I keep on thinking it's the same thing...and it's not
asked by Neee 
gen physics II
A beam of light is incident upon a flat piece of glass (n = 1.50) at an angle of incidence of 45°. Part of the beam is transmitted and part is reflected. What is the angle between the reflected and transmitted rays?
asked by Alinkashia 
gen physics II optics
Find the radius of a star image formed on the retina of the eye if the aperture (pupil) diameter at night is 0.70 cm and the length of the eye is 3.1 cm. Assume the wavelength of the starlight in the eye is 500 nm. (1nm=10^9 m)
asked by Alinkashia 
gen physics II
A beam of light is incident upon a flat piece of glass (n = 1.50) at an angle of incidence of 45°. Part of the beam is transmitted and part is reflected. What is the angle between the reflected and transmitted rays?
asked by Alinkashia 
math
the number of ways in which 18 students in Mr. Garr grade 3 class can line up for a photo if the the Armstrong triplets cannot all be together is n x16! what is n?
asked by dave 
math
A committee of 2 teachers and 3 students is to be randomly chosen from a group of 5 teacher and 6 students. the total number of different committees is?
asked by dave 
Chemistry
14 carat gold has a purity of 58.3% How many moles of gold are in 124 grams of 14 carat gold ?! Answer in units of moles. how would yu do this problem ?! explain pleasee. !
asked by Nicole 
chemistry
The mass of initial magnesium metal used do not affect calculation of determining the empirical formula. Why? Explain in terms of chemical laws.
asked by shirley 
relational database concepts
.Fernando Culebra, owner of Fernando's Skate Shop, still needs your help. Apply what you have learned about the steps of the design process to help Fernando get started in the design of his new database. Complete steps 1 and 2 of the design process by
asked by Anonymous 
Medical Terminology
Some technical terms pass into common usage as knowledge about a field spreads. Think of three such terms that have passed into common usage recently.
asked by Randi Grzesik 
Medical Terminology
Devise memory aids for any five terms relating to the endocrine and nervous systems.
asked by Randi Grzesik 
Physics
Show that the escape speed n for a body located on the surface of a planet of radius r and mass M is given by the expression v = sqrt( (2* G * M)/r) now im using (K+Ug)i = (K+Ug)k where Kf = 0 because final velocity is zero and Ugf = 0 because its final
asked by Oisin 
physics
A coin is placed 20 cm from the axis of a rotating turntable of variable speed. This speed is gradually increased and the coin remains fixed on the horizontal turntable until a rate of 36 rpm is reached. At this point, the coin slides off. What is the
asked by anan 
trigo
4.2x21.2x60.018x5 divided by 6x4 =? 18y35y127y11 divided by 3/2y =?
asked by weakin 
PHYSICS
a)speed is the magnitude of instantaneous velocity. Is the average speed equal to the magnitude of the average velocity? Justify b)under what condition is the average equal to instantaneous velocity? c)a car travels 40 mph for 2 hrs and 60 mph for
asked by josh 
PHYSICS
if by some suitable mechanism the falling body had been given an initial downward push instead of just being released, would the resulting value of (g) acceleration due to gravity have been different?why? tnx....please answer it...
asked by josh 
Mathlinear program
For the linear program Max 2A + 7B s.t. A + B ¡Ý 12 2A + 2 B ¡Ü 26 B ¡Ý 1 A, B ¡Ý Which of the following would be found in the correct standard form? A + B  S1 = 12 2A + 2B  S2 = 26 2A + 2B + S2 = 12 A  S3 = 1 B  S3 = 1 2A + 2B + S2 = 26
asked by Donna 
linear programming
For the linear program Max 2A + 7B s.t. A + B greater than or equal to 12 2A + 2 B less than or equal too 26 B greater than or equal to 1 A, B greater than or equal to Which of the following would be found in the correct standard form? A. YES B. NO A + B 
asked by Donna 
exams
Do I have to write two exams in one day when I'm in college or university?
asked by AL 92 
business
mba decision
asked by gloria 
corporate finance
How does Ben's age affect his decision to get an MBA
asked by gloria 
math116 algrabra
I really need help i am so stuck i can not figure this out we are trying to find the slopes here is an example of what i am doing i get everything all theway till a certain point example: (4,9);2x=5y+6 the answer is 2/5x+53/5 but i don't know how they
asked by trudy 
Math
What ratio is equal to 1/3? 3:1 6:9 20:80 21:63
asked by Anonymous 
his
1933 hitler begins to rearm Germany what future steps did he take between 1933 and 1939 invasion of poland that lead to war?
asked by ami 
math
factoring strategy 9x^2 + 4y^2
asked by vera 
his
in august 1945 the US dropped the atomic bomb on japan what are the justification for and aganist dropping the bomb?
asked by ami 
his
what were the Hitlers goal for germany when he come to power and how did they lead to World War 2?
asked by ami 
edu
what is the difference btw. State Board of Education and the Department of Education? Who does the State Board of Education report to??
asked by ggirl 
algebra
Why is it important to simplify radical expressions before adding or subtracting? How is adding radical expressions similar to adding polynomial expressions? How is it different? Provide a radical expression for your classmates to simplify.
asked by Roselyn 
International Econ.. Please Help!
Suppose the U.S. is an importer of product X and that there are no trade restrictions. Let us asuume that the U.S. consumers buy 1 million units of X each year, of which 400,000 are produced domestically and 600,000 are imported. A. Suppose a technological
asked by Mary 
math
Find the inverse for graphing y=f(x)=3^x
asked by angelica 
math
The winning time int he womens Olympic 200 meter dash w is a function of the year x in which the event was run, starting with 1948 and is given by the equation w= f(X)= 0.0661X+152.8 A. PREDICT THE WINNING TIME FOR THE 1988 OLYMPICS. ( THE ACTUAL TIME WAS
asked by anna 
math
simplify 1/x+h  1/x
asked by stephen 
algebra
can someone help me understand how to solve this... i have no idea what to do! why are the letters in the problem? factoring strategy 9x^2 + 4y^2
asked by vera 
9th grade
How many grams of water must be added to 2 grams of a 65% iodine solution in order to produce a 42% iodine solution? Round your answer to the nearest tenth
asked by SHAKAYLA 
math116
I really need help i am so stuck i can not figure this out we are trying to find the slopes here is an example of what i am doing i get everything all theway till a certain point example: (4,9);2x=5y+6 the answer is 2/5x+53/5 but i don't know how they
asked by trudy 
corporate finance
Bunyan Lumber, LLC Closing Case: When should the company harvest the forest? Can you help me get started on this assignment? Bunyan Lumber, LLC, harvests timber and delivers logs to timber mills for sale. The company was founded 70 years ago by Pete
asked by gloria 
math
inverse of y=√(9x^2 )
asked by ANGELICA 
physics
Discharging Capacitor For R = 1000 W, C = 2000 mF, Qo= 20 mC. (a)How long will it take before the capacitor discharges to Qo/100. (b)What is the value of current at t = 4 sec. I am completely lost on how to solve this question, please can anyone give me
asked by sam 
Botany
What is the differnce between ferns and pteropsida?? i have tried to search over web but found nothing!
asked by Mesut 
International Econ.. Please Help!
Suppose the U.S. is an importer of product X and that there are no trade restrictions. Let us asuume that the U.S. consumers buy 1 million units of X each year, of which 400,000 are produced domestically and 600,000 are imported. A. Suppose a technological
asked by Mary 
Physics
(b)A coin is placed 20 cm from the axis of a rotating turntable of variable speed. This speed is gradually increased and the coin remains fixed on the turntable until a rate of 36 rpm is reached. At this point, the coin slides off. What is the coefficient
asked by Physics 
Math
Use Part 1 of the Fundamental Theorem of Calculus to find the derivative of the function h(x)=integral [2,1/x]sin^4t dt
asked by Eileen 
science
a 5.o kg book is sitting on a table. which describes the forces acting on the book? a)there are no forces acting on the book b)the net force on the book is zero
asked by Anonymous 
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
asked by Rose 
science
how many stars are there about in the sky? a. about 50 million b. about 90 trillion
asked by anonymos 
Physical Science
how much heat must be added to 300g of water to raise its temperature from 20 to 80 degrees celcius?
asked by Anonymous 
electrical ? resistor
Calculate R of a thinfilm gold resistor:L = 1 mm, width = 0.2 mm, and thickness = 0.01 mm. I am not sure what formula to use for this?
asked by sam 
International Econmics... Help Needed!!!!
Suppose the U.S is an importer of product X and that there are no trade restrictions. Let us assume that the U.S. consumers buy 1 million units of X each year, of which 400,000 are produced domestically and 600,000 are imported. a) Suppose a technological
asked by Mary 
Science
Can someone please give me a SIMPLE definition of metabolism. I've seached tons of dictionaries, but they all give a long and confusing definition and I'm not sure if I understand the concept.. Please help!!
asked by Anne 
Math 117
When finding the GCF of a polynomial, can it ever be larger than the smallest coefficient or smaller than the smallest coefficent? I am stuck and I am not sure on this questio. Any help you can provide me would be great. Thanks!
asked by Jan 
math/algebra
solve the compound inequality. 2x7 / 6 is less than or equal to 7, or 2x7 / 6 is greater than or equal to 5 I came up with 35/2 or 37/2 but it's incorrect. help?!!
asked by jan kopelman 
English
Can you please check these sentences for me? Many thanks. 1) At the moment I don't know at what time I will be arriving in Berlin on Friday 13 August. 2)I believe I will be able to have conversation classes with you from Monday to Friday. (I may do two
asked by Franco 
business
Appendix E Store Operations Messages Iam not sure how to write a message using this: You are a public relations manager called upon to present information regarding changes in retail store operations to three sets of stakeholders of a clothing store chain.
asked by Sara 
Physics
"Determine the restoring force of a pendulum that is pulled to an angle of 12.0 degrees left of the vertical. The mass of the bob is 300.0g."
asked by Stuck 
Language Arts
When I'm using 'grade' in a sentence, would it be capitalized? I.e. Jorge is in Grade 9? PS I'm Canadian, so maybe no US grammar rules?
asked by Barb 
economics
1. Assume there are three markets: A: Wool; B: Synthetic Fiber; C: Business Travel. Assume we are in the years after the introduction of synthetic fibers. Using demand and supply analysis explain what happens in the SHORT RUN in all three markets and why?
asked by mike Gee 
Algebra math 208
write each equation in slope intercept form y + 3 =  3(x6)
asked by Anita fields 
College physics
According to Newton's Third Law, for every action there is an equal an opposite reaction. If the current on the wire is such so that the magnetic force on the wire points upward, what must be true?
asked by emoni 
math
clarence has $20, 000 in the bank. He wants to create an investment to pay his $230 monthly car insurance payment for four years, with the first payment dude in one month. How much of his $20, 000 should he invest now at %8.25 per annum, compounded
asked by mangtonio 
government
A STUDY OF THE CAUSES OF THE AMERICAN REVOLUTION OF 1776 THE FRENCH REVOLUTION OF 1789 AND THE RUSSIAN REVOLUTION OF 1917 BEST DESCRIBES THE GENERAILIZATION THAT REVOLUTION IS MOST LIKELY TO OCCUR WHEN
asked by TIMOTHY 
College physics
In the image below, you will see a current balance setup where the current I is coming out of the page in between the two poles of the magnet N and S. What is the direction of the magnetic field B in the region where current I is? The Image shows the north
asked by emoni 
Chemistry
Draw the condensed structural formula for ethylbenzene, 1,3 dichlorobenzene,1,2 and 4trimethylbenzene ? Any help would be appreciated, thank you I also was wondering if anyone could let me know if I am going in the correct direction with this question>
asked by Beth 
Chemistry
I have a lot of questions on identify(ing) the functional groups in molecules. I am not sure how to go about finding these out.The first question is THC. How do I go about knowing the functional group of this molecule? Thank you.
asked by Beth 
math
a three digit number is chosen at random. what is the probability that the sum of the digits is less than 6? i got 3.78% but im not sure if that is correct. I assumed that there were three possible outcomes because 012 would just be considered 12
asked by catherine 
Statistics
For a normal distribution with a mean of m = 80 and a standard deviation of s = 20, find the proportion of the population corresponding to each of the following scores. a. Scores greater than 85 b. Scores less than 100 c. Scores between 70 and 90 I believe
asked by Lyndon 
College physics
If the force increases when the current increase what can you say about the force on a current element as a function of the current?
asked by monique 
math
Saying that 4
asked by Cliff 
his
discuss in details the truman doctrine, the berlin airlift, and the marshall plan confrontation between US and Soviet union during coldwar. what evetns began each crisis. How did the other side react and what were the outcomes of each?
asked by ami 
economics
What is one of the major welfare challenges in Canada and how is it being tackled
asked by Randy 
Economics
Has the distribution of income in Canada become equal or more unequal?
asked by Randy 
ellipse
Find the coordinates of the vertex and focus of the ellipse 9x Square+ 4y square=0.09
asked by Angela 
Chemistry
I would appeciate any help with identifying the chiral carbons, if any, in each of the following compounds: OCH3 2. CH3CHCH3 OH O 11. CH3CHCCH3 OH 12. CH3CCH3 OH CH3 O 15.CH3CHCCH3 Br CH3CCH2CH3 OH thank you.
asked by Beth 
Sin 4x
a.)Find sin 4x if tan=0.6 b.) Solve: sinxsinx/2=1cosx(0
asked by Angela 
College physics
The magnetic field at the center of a 0.70cmdiameter loop is 2.4 mT. What is the current in the loop? A long straight wire carries the same current you found in part a. At what distance from the wire is the magnetic field 2.4 mT?
asked by monique