Questions Asked on
November 13, 2007

**CHEM**
Arrange the following elements in order of decreasing atomic radius: Cs, Sb, S, Pb, Se *(list from largest to smallest...or..."the correct ranking cannot be determined") ***I think the answer 'should be', from largest to smallest: ***Cs, Pb, Sb, Se,

PHYSICS HELP
a cube of wood with a density of 0.78g/cm^3 is 10cm on a side. When placed in the water what height will the block float above the surface? what am i doing wrong here: height= Desity of cube* volume of cube and devide by the density of water * area of the

**CHEM
Place the following elements in order of Decreasing atomic size: tellurium, bromine, argon, cesium, strontium, and selenium. would the correct ranking then be: Cs, Sr, Te, Se, Br, Ar ??? or am I still way off??

math
For the line segment ST, S has coordinates (6,2) and T is on the yaxis. The midpoint,M, of ST is on the xaxis. Find the coordinates of T and M ?

CHEM**
I just have 2 other questions that I just want to make sure on: Place the following elements in order of decreasing atomic size: tellurium, bromine, argon, cesium, strontium, and selenium. (Te, Br, Ar, Cs, Sr, Se) ~~(or...the correct ranking cannot be

CHEM
Consider the following neutral electron configurations in which 'n' has a constant value. Which configuration would belong to the element with the most negative electron affinity, Eea? a) ns^2 b) ns^2 np^2 c) ns^2 np^5 d) ns^2 np^6 would the answer be

PHYSICS HELP
A disk has a moment of inertia of 3.0x10^4 and rotates with an angular speed of 3.5 rad/sec. WHat net torque must be applied to bring it to rest in 3.0s? can some one help me out with this im lost!!!

CHEM
Which of the following elements has the highest first ionization energy? Element then radius (pm): X = 105pm Y = 175pm Z = 274pm I think that the answer is "Z274pm", but I just would like to make sure.

Physics
The Achilles tendon, which connects the calf muscles to the heel, is the thickest and strongest tendon in the body. In extreme activities, such as sprinting, it can be subjected to forces as high as 13.0 times a person's weight. According to one set of

math
The point (x,1) is 13 units from the point (3,11), What are the possible values of x ?

CHEM
Could someone please tell me if I am correct on the following???: Pick the larger species from each of the following pairs. Sr or Sr^2+ *(I think it is Sr) N or N^3 *(I think it is N^3) Ni or Ni^2+ *(I think it is Ni) S^2 or Ca^2+ *(I think it is S^2)

economics
3. Farmer Jones and Farmer Smith graze their cattle on the same field. If there are 20 cows grazing in the field, each cow produces $4000 of milk over its lifetime. If there are more cows in the field, then each cow eats less grass, and its milk production

physics
Modern airplane design calls for a lift, due to the net force of the moving air on the wing, of about 2000 N per square meter of wing area. Assume the air flows past the wing of an aircraft with streamline flow. If the speed of flow past the lower wing

math
A quadrilateral has vertices P(3,5),Q(4,3),R(3,2),and S(5,4). Find the lengths of the diagonals,to the nearest tenth?

math
When a positive integer, n, is divided by 24 the remainder is 18. When n is divided by 8 the remainder is: A.0 B.1 C.2 D.4 E.6 I tried doing n/24=18 and I got 432 and when I divided it by 8 I got 54; am I misinterpreting the question? I really see no other

Chem
How many atoms are in 1.75 mol CHCl3?

julius caesar
What does Antony say Caesar's death symbolizes? Act 3Scene 2

economics
perfectly competitive industry. Each firm having identical cost structures. longrun average cost is minimized at an output of 20 units. Minimum average cost is $10 per unit. total market demand is Q=150050P. What is the longrun equilibrium price? Total

Chemistry
Sort the following elements by electron affinity, from most positive to most negative EA value: bismuth, chlorine, helium, cesium, and tellurium.

Another American History essay question
How did the Second Great Awakening and industrialization encourage social reform

Algebra
I got a couple I want to check my work : Both are Solve using the quadratic formula : 1) x^23x=7x2 x^23x7x+2=7x7x2+2 x^210x+2=0 x = 10 + sqrt10^2  4(1)(2) / 2(1) x = 10 + sqrt100  8 / 2 x = 10 + sqrt92 / 2 x = 10 + 2sqrt23 /2 x = 5 + sqrt23 x

College Physics
An open barge has the dimensions l=22 m, w=40 m, and h=12m. If the barge is made out of 4.0 cm thick steel plate on each of its four sides and its bottom, what mass of coal can the barge carry in fresh water without sinking? Is there enough room in the

MATH
Finding the variable 27x 3 (X6) = 6

physics
A horizontal pipe has a cross sectional area of 40.0 cm^2 at the wider portions and 10.0 cm^2 at the constriction. Water is flowing in the pipe, and the discharge from the pipe is 6.00*10^3 m^3/s(6.00 L/s). Find (a) the flow speeds at the wide and the

Algebra
I have worked this and checked it and it does not come out true any one help me? 3x5(3x7)=2(x+9)+45 3x15x35=2x+18+45 12x35=2x+63 +35 +35 12x=2x+98 2x 2x 10x=98 x=98/10 x=9 8/10 checking it i get 152 3/5 and 43 2/5 Help where did I go wrong?

Business
The general purpose of a report is to persuade readers to do something, is that the same as getting your audience to change their minds about some important issue? I am getting confused because by " getting your readers to do something (action) seems

Physic
Why do protons in a very large nucleus have a greater chance of flying apart by electrical repulsion?

Chemistry
Which group of elements are all gases at room temperature?

Visitor165
I have visited your site 731times

science
explain how energy is stored in and released from atp

American History Essays
Compare and contrast the Irish and German immigrants of earlynineteenthcentury America in terms of their motives for leaving Europe, patter, of settlement in the US, impact on American life, and reception by nativeborn Americans. I know what I need to

physics helpt please?
A copper wire or length 2.0M, with crosssectional area 7.1x10^6 m^2 and youngs modulus of 11x10^10 N/m^2 has a 200 kg load hung on it. what is its increase in length? F/A=Y* change in L/Length = (200*9.8)/7.1x10^6=11x10^10* delta L/2m? am i even setting

College Physics
A horizontal pipe has a cross sectional area of 40.0 cm^2 at the wider portions and 10.0 cm^2 at the constriction. Water is flowing in the pipe, and the discharge from the pipe is 6.00*10^3 m^3/s(6.00 L/s). Find (a) the flow speeds at the wide and the

Science
Humans shape their environment in ways that other organisms cannot. Are humans subject to the same pressures of natural selection as other organisms? why or why not?

Math
Find the variable? 8C + 1 = 7C2(7+C)

Chemistry
How do the physical properties of nonmetals differ from the physical properties of metals?

Algebra 2
Find the exact solution(s) of each system of equations? x^2+y^2=25 and 9y=4x^2 a.(4,3),(4,3) b.(3,4),(3,4) c.(4,3),(4,3) d.(3,4),(3,4) I had d but im not sure if that is right.

Chemistry!
Nitrogen reacts with hydrogen to make ammonia: N2 + 3H2 > 2NH3 Calculate the maximum thoeretical yield of ammonia that can be made by reacting 90g of hyrdrogen with an excess of nitrogen. Thanks!

Logic cont.
how do they know each other?????

World history
IS AD and CE the same thing?

Physics...seriously seriously need help esp part C
The coordinate of a 2.00kg object in linear motion is described by the function: x(t)= (2.00m/s^3)t^3 (7.00m/s^2)t^2 + (7.00m/s)t for the time interval t= 0s to t= 2.00s. The center of mass of this object can be treated as a point particle. a) find change

CHEM
I just have one more question regarding electron configurations for the following ions: Mo^3+ V^3+ I cannot understand why my answers are not working. Not listing as groundstate configs, but as full e configs: shouldn't Mo^3+ be: 1s2, 2s2, 2p6, 3s2, 3p6,

History
what was the deal with Ft. Carson almost being closed down?

World History
Is it true that the location back then is different compared on modernday maps?...like for example..what central africa back then was north or western africa..

english
Is it greatgrandma, great grandma, Greatgrandma, GreatGrandma, or Great Grandma? Thanks!

World history
May you provide me useful, credible information/sites regarding trade, labor systems, or agriculture in the kingdom of kongo?

math
Find the total distance slong the longer sides of the rectangle and along the two semicircles. The length is 10 and the height is 4. I think the answer is 32.6 but I'm not sure if it's right. Is it right?

math
A ball rolls along a circle whose radius is 2 ft. How far does the ball roll if it goes around the circle 12.5 times? I got 25 ft as my answer. I just multiplied the two numbers and I got 25. Is this right?

world history
Describe the kingdom of kongo (the time/ place/ significance). Describe the economy.

math
Find the weight of the contents of a right rectangular prism with length 13 ft, width 6 ft, and height 2.5 ft if the contents weigh 0.02 pounds per cubic inch. I think the answer is 31.2 but I'm not sure. Is this right?

account. question
Is this correct are the steps correct for the accounting cycle. They gave a list the list says the following: a)Preparing the postclosing trial balance b) posting the journal entries c)journalizing and posting adjusting entries d)preparing the adjusted

Stats
Think of a situation like the thinkingsuppression device example. Come up with a plausible scenario, with reallife data, using an observable that is binomial, and which you can measure in at least two di erent groups. For example: you might ask if

accounting question
I have to prepare a general journal entry for a company of transactions that they have done in the month of june. I have done a couple of them. But i haven't had one that says the following for the beginning: S.Shelton, the owner, invested $105, 000 cash,

english
what are consonants and how are they used.

Physic please help!
A mixture of red light (vacuum = 661 nm) and green light (vacuum = 551 nm) shines perpendicularly on a soap film (n = 1.35) that has air on either side. What is the minimum nonzero thickness of the film, so that destructive interference causes it to look

world history
ANY LABOR SYSTEMS IN MEDIEVAL CENTRAL AFRICA?

acct. question
then the next step for the general journal entry says the same thing which both of these are giveing me a hard time. Purchased land worth $54,000 for an office by paying $5,400 cash and signing a longterm note payable ofr $48, 600. so, would i place the

science
What edible items could be used to make a marsh?

Health
Why is advocacy important to my health?

math
Find the weight of the contents of a right rectangular prism with length 1 ft, width 6 ft, and height 2.5 ft if the contents weigh 0.02 pounds per cubic inch. I think the answer is 31.2. Is this right?

college physics
i just need to know if i got the right answer. plz thankyou a 15000N car on a hydrolyic lift rests on a cylinder with a piston of radius 0.20M,. if a connecting cylinder with a piston of 0.04M radius is driven by compressed air, what force must be applied

WORLD HISTORY
WHAT TYPE OF TRADE AND COMMERCE OCCURED IN MEDIEVAL CENTRAL AFRICA? CAN YOU BE A BIT MORE SPECIFIC WITH THE SOURCES?

Criminal Justic
which of the following is most likely to require a court order before turning over their data to a police investigation hospitals hotels government agencies travel agencies

problem solving
Dionne is running clockwise. She can run around a circular track in 120 seconds. Basha, running counterclockwise, meets Dionne every 48 seconds. Sandra runs clockwise and passes Basha every 240 seconds. How often does Sandra meet Dionne in 10 minutes?

Criminal Justic
instruments that might have made tool marks as requiring particular attention at what type of crime scene hit and run accidents homicides plane crashes burglaries

Chemistry
One type of sunburn occurs on exposure to UV light wavelength in the vicinity of 325nm. How many photons are in 1.00 mJ burst of this radiation?

Criminal Justic
What is commonly called transfer evidence? hairs and fibers heel imprints weapons blood stains

Criminal Justic
offences against persons that are not offences against the state are called?

Physics
You place a box weighing 223:2 N on an in clined plane that makes a 38:4± angle with the horizontal. Compute the component of the gravita tional force acting down the inclined plane. Answer in units of N.

math
can someone check my answers subtract 7/9(13/19)=3/2 multiply (4)(3/2)=6f find the first and third quaritles q1 and q3 of the following set of numbers 13,4,12,16,8,14,8,3,10,8, my answer 4:12 find the first and third quaritles q1 and q3 of the

American History
How would a poor white react to the Nat Turner rebellion???

by any chance would there be any tutuors today for
accounting?

Calculus
Minimize S=x+2y with xy=2 and both x and y > 0. Can somebody explain to me in words and numbers how to do this problem.

Projected Revenue
Prior Year: New Revenue = 248,631. Renewal Revenue = 369519. Conversion rate = 41.7%. What is the Renewal RAte? (Def: Conversion rate = new rev converts to renewal rev in the following yr. Renewal rate = renewal rev that converts to renewal revenue in the

Physics
What are some examples of the principles of mechanics in car crashes and car safety? I can only think of one, friction reducing the traction of the tires. Can you help me come up with two or three more examples? Thank you.

Chemistry
How do you find the simple configuration of electons for an element?

math
Find the weight of a right rectangular prism with length 13 ft, width 6 ft, and height 2.5 ft if the contents weigh 0.02 pounds per cubic inch. I think it's 31.2 but I'm having doubts. Can you help me?

Literarure
In Act 4 scene 1 Who rules Rome at this point in Julius Caesar?

CHEM organic chem
i am really confused! i am doing the production of ethene from fractional distillation and i understand the whole concept of it what i don't get is how i can write a balanced eqn to show how ethene can be produced from C14H30 (tetradecane?!) i did C14H30

Julius Caesar
please suggest 3 reasons why Brutus' decision to assassinate Caesar was right or wrong.

Algebra
Two more I would like to check my work on: Solve using the square root property: (x+6)^2 = 4 x+6 = sqrt4 x+6 = sqrt4 x+6 = 2 x+6 = 2 x+66 = 26 x+66 = 26 x = 4 x = 8 Solve by completing the square: x^2+6x+1=0 x^2+6x+11 = 01 x^2+6x = 1 x^2+6x+9 =

College Physics
A liquid is used to make a mercurytype barometer. The barometer is intended for spacefaring astronauts. At the surface of the earth, the column of liquid rises to a height of 2185 mm, but on the surface of Planet X, where the acceleration due to gravity

I need help in math
Are their anyone who online right now who can help me in math?

College Physics
Modern airplane design calls for a lift, due to the net force of the moving air on the wing, of about 2000 N per square meter of wing area. Assume the air flows past the wing of an aircraft with streamline flow. If the speed of flow past the lower wing

I need help with this math question
Find the weight of the right rectangular prism with length 13 ft, width 6 ft, and height 2.5 ft if the contents weigh 0.02 pounds per cubic inch. I think that the answer is 3.9 by multiplying 6 x 13 x 2.5 x 0.02. Is this right?

Chemistry
My worksheet gives me a list of chemical symbols, and each one makes a phrase. I have to figure out which each one says. The one I can't figure out has these symbols: Co, Mo, Tc, O, U, N, Ta, Re, Y Any guesses as to what the phrase could be?

chemistry
Can someone define and describe Molecular water?

Calculus
find the equation of a line tangent to the graph of y = x / (square root of 5x^s +4), at x = 1. am i suppose to take the derivative? if so, then what else?

science
what animal is a golden jackal natural enemies?

CHEM
Consider the relation shown for the radius of the species indicated. Which choice presents a valid comparison? a) Na > Na+ b) Ca^+2 > Ca+ c) Cl > Cl d) S > S^2 I think that the answer is "a"...but not 100% certain. pls help.

Math
Find the variable? 8C + 1 = 7C2(7+C)

World History
Were there significant crops in central Africa during the Middles Ages, that is, during the period from 6001450? What about trade and commerce or labor systems? Please provide me references. Thank you so much!

Math
Could some one please explian how to do this problem thanks :) A company purchased an air conditioning system for $10,200. The shipping charges on the system were $875, and the set up cost were $1,250,The system is expected to last for five years and has a

Math
please explian thanks :) I need to know how to figure out .... A loan requires a 12% down payment and 24 equal monthly payments of $195.,what would the finance charge of the loan be

MATH
2t/3  11 = 4 (16  t )  1t/3

contemporary buisness communications
for what audience or readership do you think the article "blogs will change your business" was written? what is the purpose of the article (to entertain, inform, persuade, or a combination)? explain answer how do the writers organize information in the

English
I got a speech to do on a English topic called CONFLICT & RESOLUTION. I have to do a speech on either a : person  biography or autobiography novel movie theme a poet and conflicts can be: interpersonal intrapersonal intergenerational intercultural A large

Chem
What is molar mass of CaSO4?

Physical Science
I'm working on the "Introduction to radioactivity and halflife experiment". It's harder than I thought. Any references that you know of that might make this easier to understand?

grammar
Dangling Modifiers Although heated in the microwave, I found the center of the pizza cold.

science
......I have a science project and i have to build a toy that contains a level and can convert potential into kinetic energy. I need help i need an example something!!!!!

physics
An open barge has the dimensions l=22 m, w=40 m, and h=12m. If the barge is made out of 4.0 cm thick steel plate on each of its four sides and its bottom, what mass of coal can the barge carry in fresh water without sinking? Is there enough room in the

Quick general Q:
Is there any way that people are able to send charitable monetary donations, of sorts, for all of the help & guidance which they receive through this site?

Physics
In a design for a piece of medical apparatus, you need a material that is easily compressed when a pressure is applied to it. Would this material have a large bulk modulus, small bulk modulus, or is the bulk modulus not relevant to this situation?

physics
A liquid is used to make a mercurytype barometer. The barometer is intended for spacefaring astronauts. At the surface of the earth, the column of liquid rises to a height of 2185 mm, but on the surface of Planet X, where the acceleration due to gravity

Biology
The average human cell that is capable of dividing has a cell cycle of 20 hour. How many cells would there be in one week if they start with one cell at time zero?

economics
2. A company is considering building a bridge across a river. The bridge would cost $2 million to build and nothing to maintain. The following table shows the company¡¯s anticipated demand over the lifetime of the bridge: Price per crossing ($) 8 7 6 5 4

economics
4. Monopolistic Competition markets are characterized by many producers of very similar products. Each producer differentiates the product from the competing brands and tries to make monopoly profits from a small segment of the market that is devoted to

CHEMISTRY
A CHEMICAL SHOWS THE TYPES OF WHAT ATOMS IN THE SMALLEST REPRESENTATIVE UNIT OF A SUBSTANCE?

Physics
1.How does the mass of a nucleon compare with the mass of an electron? 2.Distinguish between atomic number and atomic mass number. 3.Why do protons in a very large nucleus have a greater chance of flying apart by electrical repulsion? 4.What exactly is

ALGEBRA
WRITE AS AN FRACTION 7 5    3 8

business ,media
I have a coursework,and i was asked to write,the KEY FACTORS OF SUCCES,in a industry,which in case it happens to be the television industry.I need to write what we as the customers want from the tv,then we need to find out how the company can achieve the

science
what is a simple machine and i have a project where i have to build a toy that contains at lest three simple machinesand is cabable of completing a task with minimal or no human intervention details please

Math
Find the variable 0.3a+(0.2a0.5)+0.2(a+2)=1.3

fianancial management
Cox Wood Preserving, Inc. is expected to maintain a constant 2$ growth rates in its dividends, indefinitely. If the company just paid $2 dividend and the firm's stock is selling at $15. What is the required return on the company's stock?

Math
two is what fractional part of 9?

Marketing
What are some of the functions that insurance agents perform in the distribution channel?

english
what is that pronoun antecedent in this sentence. what changes should be made? Parents go out of their way making sure they are happy and have what they want and need.

Human Resource MGT
Write a paper recommending to a company's board of directors that affirmative action policies be implemented. It should be 7001050 words in length and formatted according to APA guidelines. Include points supporting the recommendation and clearly address

Math
Please help with the below. I don't understand the previous answers. Find the variable? 8C + 1 = 7C2(7+C)

precalc
is x=15 degrees a solution of radical 3/3 cos2x+sin2x=0

reading
how do the themes survival self sacrifice and death apply to the book uses of enchantment by Heidi Julavits

CHEM organic chem
i am really confused! i am doing the production of ethene from fractional distillation and i understand the whole concept of it what i don't get is how i can write a balanced eqn to show how ethene can be produced from C14H30 (tetradecane?!) i did C14H30

PreCalculus
I transfered classes and they use graphing calculators. I've never used the graphing functions on mine. We were supposed to graph exponetial functions. Help?

financial managment
Capital Budgeting and Cash Flow Estimation After seeing Snapple’s success with noncola soft drinks and learning of Coke’s and Pepsi’s interest, Allied Food Products has decided to consider an expansion of its own in the fruit juice business. The

World Geography
What website is a good resource for finding out the distance between countries in South America?

history
how were the assyrians like the mesopotamians

Genetic
I need to write a proposal of the possible traits we can actually measure in lab. What are some quantatitive traits of woodlice/isopod beside measuring their maximum speed.

English
SIMPLE SENTENCE> Complex Sentence How can i make a complex sentence, out of these sentences: Tom is a boy. He is eight years old. He goes to school in Philadelphia.

Calculus
find the limit. use L'Hopital's Rule if necessary. lim (x^2+3x+2)/(x^2+1) x > 1

Math
I am trying to help my son in Algebra, the only thing is that I have forgot some of these thing.He has a word problem I can not figure it out please help a mother help her 9th grader. Q The polygons below are similar. Find the unknown side lengths if

math repost with correct info
A loan requires A 12% down payment and 24 equal monthly payments of $195.00 the amount that needs to be borrowed is $4,200 please explian how to figure this out thanks :)

English
Does anybody know what wordplay means or what pun lines are?? thanks

microeconomics
This is what I have, qi=20, AC(average cost)=10, and (total market demand) Q=150050p. What is the industry's longrun supply schedule?

Science
Why is hydrogen, H, most often considered a nonmetallic element?

Chemistry  Kinetics
When a reaction is catalyzed: a) Is the catalyst involved in the reaction? (State your evidence) b) Has the catalyst been consumed when the reaction is complete?

math
CD is a line segment joining the point C(3,8) and D(3,4). Find the coordinates of the three points that divide CD into 4 equal parts?

Math
Help please on how to solve the following problem: If E,N,O,T, and W each represent a different integer, can you find more than one solution to this problem? Thanks in advance!

Math
How do you compare decimal numbers?

Physics
How does the mass of a nucleon compare with the mass of an electron

physics
Distinguish between atomic number and atomic mass number.

Math
What set of instructions would you give somebody to compare decimal numbers?

Physics
Describe alpha, beta, and gamma rays. What exactly is each ray composed of? What are their characteristic radiation characteristics?

Religion
What are two effects that organized religion has had on society and give examples from past and/or present world events that illustrate your examples.

unscrambling
What word does this make aaaeiiocchnrrtz.The word starts with a 'c' and ends with an 'n'.Help it is homework that is due tommorrow. Thanks for your help!!

physic
What exactly is transmutation?

music
how many beats in a bar

Help With Math
Using the quadratic formula to solve equations. 12^2 + 12 x9 = 7x^2 10x^2 + 5x + 12 = 0 6x^2 + 12x =  1 11x^2  7x 1 = 0 2x^2 18x + 16 = 0 Can u show work to help me out

Math
i don't understand this question.it is straight out of my math book: The following prices were posted at the local store. Bananas:.39c a pound Notebook Paper: 1.02c What is wrong with these signs?

Help Please  Science
I'm stuck on this thing in science. It's a lab report so its kinda hard to explain. We did a topographic map experiment. We had a big rock, and put it in a plastic bin. We then marked centimeters on the bin and filled water to the first centimeter. We drew

please, please help
can someone please help me on my earlier post?

Logic
Lucy goes to stanford. Ben goes to Yale. Eliza goes to Oxford. And Peter goes to Harvard. Just by this info.......

PHysics
You said that all my questions had been answered else where, when I search I cant find anything on them. . . how do I find them I have looked through 4 pages . . .

Physics
I posted this earlier and no one responded so I am going to try again. I have to Distinguish between atomic physics and nuclear physics, so here is what i have. which deals with the atom as a system of electron(s) and a nucleus and nuclear phys

Spelling
I am doing opposites and I cannot figure this one out Not sumple, but c_m_l__

english
What is the difference between the movie and book for flower for Algernon?

4th grade science
I am supoose to write some information about Micheal Forada for science, concerning magnatism or electricity. I can't find anything on the internet about him. Could someone tell me were to look? Any help would be appreciated.