Sunday
November 23, 2014

Posts by Daniel


Total # Posts: 846

biology
explain the role of antigens and antibodies in natural and artificial control of diseases
January 23, 2010

social studies
Where did the pickle first originate?
January 20, 2010

Algebra
x + square root of 5 / x - square root of 5
January 18, 2010

accounting
“When in need, Google!” has become the single solution for all and any problem under the sun. Your accounting homework problems are no exception to this. By the time you settle down in college after finding campus routes, remembering locker codes and making new ...
January 14, 2010

9th grade
s8impliy this exponential expression): -2 7 -8 ) 6 -9)8 (7) * (x) * (w * (x *(4) * -3) (w
January 6, 2010

algebra
How do you do standard form
January 6, 2010

social studies
the ottomans adopted a policy of religious tolerance.why did they follow this path?The golden Age of muslim.
December 15, 2009

Physics
A football player kicks a football with an initial velocity of 30m/s at an angle of 55 degrees relative to the flat ground. a)what is the speed of the football at its highest point b)find the highes point reached c)find the total time in the air d)how far is the football ...
December 13, 2009

math
What multiplication fact can be found by using the arrays for 2x9 and 5x9?
December 7, 2009

Physics
Measured along the surface of the water, a rectangular swimming pool has a length of 15.9 m. Along this length, the flat bottom of the pool slopes downward at an angle of 16.9 ° below the horizontal, from one end to the other. By how much does the pressure at the bottom of...
November 30, 2009

Physics
The Mariana trench is located in the Pacific Ocean at a depth of about 11 000 m below the surface of the water. The density of seawater is 1025 kg/m3. (a) If an underwater vehicle were to explore such a depth, what force would the water exert on the vehicle's observation ...
November 30, 2009

Physics
Standing waves are set up on two strings fixed at each end, as shown in the drawing. The two strings have the same tension and mass per unit length, but they differ in length by 0.55 cm. The waves on the shorter string propagate with a speed of 41.8 m/s, and the fundamental ...
November 30, 2009

Physics
A string has a linear density of 6.7 x 10-3 kg/m and is under a tension of 210 N. The string is 1.6 m long, is fixed at both ends, and is vibrating in the standing wave pattern shown in the drawing. Determine the (a) speed, (b) wavelength, and (c) frequency of the traveling ...
November 30, 2009

Physics
The transverse standing wave on a string fixed at both ends is vibrating at its fundamental frequency of 250 Hz. What would be the fundamental frequency on a piece of the same string that is twice as long and has four times the tension?
November 30, 2009

chemistry 11
Hi, I am stuck on a couple questions in chemistry 11. The questions are 1. Calculate the number of moles of the anhydrous salt left behind 2. Calculate the number of moles of water removed by heat from your sample of hydrate. 3. Calculate the moles of water per mole of ...
November 22, 2009

12th grade
Can someone look over my admissions essay for Brown?
November 21, 2009

math
3,000 / 90 = 33.33 students per instructor 3,500 / 33.3 = 105.1 105 - 90 = 15
November 11, 2009

english
what does the prefix etym mean
November 6, 2009

literacy
i need to know which country these words came from caravan,yoghurt,sofa,dessert and shampoo
November 6, 2009

artist
1485 to 1489
October 19, 2009

social economics politics
debate the following proposition: "the countries of india and china have a "right" to pollute the environment until they catch up with more industrialized countries".
October 12, 2009

4th grade Math
34
September 29, 2009

physics
F=ma , T=ma T = (61kg)(9.81m/s^2) = ? N (do the math) Constant rate would mean there is no acceleration, so T = ma + m(0)== ma Furthermore, if the gymnast is climbing up at a certain acceleration, lets say 2.1 m/s^2, use the rate at which they climb for the acceleration in the...
September 27, 2009

math
how can i round each number to the place of the underlined digit?
September 22, 2009

math
how can i rounfd each number to the place of the underlined digit?
September 22, 2009

7th grade
waht is used to mix substances, like a spoon, is two words?
September 3, 2009

science
How do I diagram the four plant families? ( I remember rose family and pea family)
August 18, 2009

Science
What are the challenges of managing your chosen terrestrial resource issue?
July 21, 2009

fractions
i want to email you. please send email so i can send my math problems to you.
July 19, 2009

Algebra
In an arithmetic series, the terms of the series are equally spread out. For example, in 1 + 5 + 9 + 13 + 17, consecutive terms are 4 apart. If the first term in an arithmetic series is 3,the last term is 136, and the sum is 1,390, what are the first 3 terms?
July 14, 2009

arithmetic
N = the term number right?
June 21, 2009

arithmetic
How do you find the sum number of an arithmetic sequence? I forgot and my textbook does not explain it well.
June 21, 2009

Chemistry UGH
Help please! I can't solve any of these, would someone be as kind as to show me the answers? How many moles of NaHCO3 are in a 125.0 g sample of the compound? 3. How many moles are in 6.73 x 1024 water molecules? 4-5. AgBr, a chemical used in photography can be made with ...
May 28, 2009

Chem
If the rocket engine contains 1500.0 g of H2O2 and an excess of N2H4, what volume of water vapor will be produced when the rocket fires up to a temperature of 540oC and a pressure of 1.2 atm? I honestly dont GET this thing, ugh =( Please Help!!
May 28, 2009

12th grade
Penn Foster Examination #93051 Cooking Appliances I've gotten 16 out of 25 completed but I'll just post the whole exam to make sure I have THOSE right. Thanks for your help guys!
May 23, 2009

Calculus
YA i can't fingure out how to use it either im thinking that it could be the xi = a+x(change of x)
May 5, 2009

math
I have the number of gun deaths in 2005=36,038 2009=43,146 I think these are too high but I followed the equation to arrive at these numbers. Have I made a mistake? I cannot figure the 9,383 number into a year after 2000.Can anyone help me?
May 2, 2009

math
The equation y=1777x27,153 can be used to predict the number of gun deaths in the US x years after 2000 that is x=o corresponds with 2000 x=3 corresponds to 2003 etc Predict the number of gun deaths in 2005 and 2009 In what year will the number of gun deaths be 9,383?
May 2, 2009

Math
I have figured the equation for this word problem Train A is traveling parallel to Train B. Train A is traveling at 100 mph and Train B at 110 mph Train A passes a station at 1:15pm Train B passes the same station at 1:45pm When will Train B catch up with Train A? I have 100*t...
May 2, 2009

Algebra
Find the Domain of the function g(x)=7/7-4x Please help me understand this better Thanks
April 30, 2009

5th grade
2/4 and 3/7
April 7, 2009

physic
A spring has stiffness of 100Nmm, the initial compression of the spring is 15mm, and it is then compressed to 65mm. •1Nmm = 0.001Nm •100Nmm = 100 X 0.001 = 0.1Nm •Comp.1 = 15 mm = 0.015m •Comp.2 = 65 mm = 0.065m a) i-Find potential energy at 15mm. ii- Find ...
April 2, 2009

Chemistry
A voltaic cell is constructed as follows: Ag(s)|Ag^+,(satd Ag2CrO4)||Ag^+(0.110 M)|Ag(s). What is the value of Ecell? For Ag2CrO4, Ksp=1.1*10^-12.
March 28, 2009

english
please proof read.
March 23, 2009

english
Even as mankind evolved from Neanderthals to humans, It has never officially withdrew its inherent selfish predatory trait. Evolution has taught mankind an evil lesson: “Survival of the fittest”. Likewise, in the text George shoots Lennie not only as result of the ...
March 23, 2009

english
please proof read.
March 23, 2009

english
Throughout the novel it is evident that Lennie and George share a deep and faithful relation with one another. For example, Although George acts as Lennie’s caretaker, they both have a sense of trust, companionship, togetherness which no other characters seem to have in ...
March 23, 2009

english
ms sue i just proofread it. I want to make sure it is good before i integrate the secondary sources. do you mind if you proofread a couple of paragraphs. please note i removed the page numbers of the quotes to save space.
March 23, 2009

english
could anyone proof read my essay? could i send it to someone? If i post it here people might steal it. please i really need someone to proofread it.
March 23, 2009

chemisrty
a 445 g sample of ice at -58 degrees celcious untill its temperature reaches -29 degrees celcius. find the change in heat content system
March 22, 2009

english
how can i improve this opening paragraph? can anyone please proof read. "Life, liberty, and the pursuit of happiness” is a quote coined by America's forefathers after the signing of the Declaration of Independence in 1776 which refers to the freedom and ...
March 21, 2009

english
I need someone to proof read my essay? are there any communities where i can get it proof read?
March 20, 2009

Earth Science
Coastal areas are usually warmer in winter than areas inland because?
February 17, 2009

6th grade
where can i get help with the geometric shapes
February 12, 2009

history of the arts
The Grand Tour was considered a feature of affluent men and women. true or false I am not sure, but reading through the text it says it was the large cultural visit to sites in southern europe. given that i believe it is true!
February 5, 2009

history of the arts
The Grand Tour was considered a feature of affluent men and women. true or false
February 5, 2009

3rd grade math-help
Write three ways to find 3x2x4
January 20, 2009

Math (Probability)
I've worked out the first part of the question, just need help with the second part which is: The spinner has three sections. While no two are the same size, one of the sections is half the size of another. • You are more likely to get 2/3 than one if you sum two ...
January 9, 2009

Math
My question: A spinner looks like this: A disc divided into sections that might or might not be the same size, with a pointer that when spun will land on some part of the disc at random. The sections might be colours, or, as in these problems, have numbers in them. There are ...
January 8, 2009

biology
what letter represents the nucleus of a cell?
January 8, 2009

science
Does anyone know what letter represents the nucleus of a cell?
January 7, 2009

Science
What letter represents the nucleus of a cell?
January 7, 2009

french
merci beacoup madame
December 15, 2008

french
Bonjour madame I am back and i had help from James :D If you don't remember i am using a windows vista pc (this time)I would like to know if the sentences we have created are in proper grammatical order I was born at burnaby general hospital, I weighed 7 pounds. Je suis n&...
December 15, 2008

calculus
find solution to differential equation given the initial conditions DQ/dt=Q/5 Q= 50 when t= 0 i don't understand this one because of the division sign.
December 4, 2008

Calculus
thank you!!
December 4, 2008

Calculus
Find the solution subject to the initial conditions. dP/dt = -2P P(0)=1 dP/-2P = dt then do i take the antiderivative? what would i do next??
December 4, 2008

One more math help!
Variable = x X*83 1/3% = 13.5 X = 13.5 / .83 1/3% or .83333 X = 16.2
December 3, 2008

algebra
You would isolate the variable to one side of the inequality. A+7<10 A< 3 Whenever A is less than 3 the inequality is true. If it were -A-8 < 10 -A < 18 At this point you would divide both sides by -1, when dividing by a negative with an inequality the inequality ...
December 3, 2008

Game Theory
Policy makers in Washington, D.C., face a dilemma. On the one hand they can try to pressure the Iraqi government into trying to disarm the militias. If the effort to disarm the militias succeeds, this might put an end to the sectarian violence and bring some sort of stability ...
December 3, 2008

11th grade
there is no queshtion here for me to answer
December 2, 2008

Diffraction
Minimum intensity occurs at an angle θmin given by dsinθmin = λ d is the slit width (0.075m) Stadnik's class?
December 2, 2008

graphing lines in the form
graph linear eqation 3x-6y-9=0
December 2, 2008

math
Two-Thirds
December 1, 2008

spelling
That's a good way to start! Thank you!
December 1, 2008

spelling
need couple of analogies for the following words: lenght, green,downpour, string,tree, brush. The analogies need to start with one of the following:scr, spr,str,thr.
December 1, 2008

ponctuation, mechanisme, and writing
My new coworker, a Muslim, is actually quite nice.
November 27, 2008

french
I use a windows xp PC
November 26, 2008

french
I'm sorry Madame but the accents look all funny again o.0
November 26, 2008

french
odd sorry about that I am using a PC
November 26, 2008

french
PS my friend helped me
November 26, 2008

french
Bonjour Madame, I am back with more English Hi everyone, How are things back in BC? I am doing great in Quebec I saw the Cirque Du Soleil it was amazing, I was in Montreal on the day of the Cirque Du Soleil the town is quite historic some buildings are quite old but not as old...
November 26, 2008

Science
I want to research or information about perception of time. For my Science Fair project, I'm starting a timer and then asking people to stop me when they think a minute is done. I want to know some information about this topic, esp. what are the most important things that ...
November 16, 2008

french
omg thank you so much :D I'm sorry for keeping you awake
November 13, 2008

french
Thank you Madame I am using a Laptop with Windows xp at the moment maybe that is the reason?
November 13, 2008

french
Here is my last post for a little bit I have two questions one Mme when ever you reply all the accents on my screen turn weird is there a problem with that? and here are 3 more with english and french Saint-Louis-Du-Ha!-Ha! English If you are going to book an event why not do ...
November 13, 2008

french
it won't let me post the gnlish for this one French C'est la siège à le carnival d'hiver. C'est aussi la seule ville fortifié au nord du mexique. Dans la ville de Québec vous pouvez trouvez beacoup de mus&...
November 12, 2008

french
English Visit Quebec and see Montreal the biggest city in Quebec. It's the 10th cleanest city in the world. Stay at the sister city of Hiroshima, Japan Montreal. Montreal is the Headquarters of Just for laughs. Discover how montreal is actually an island. French Visiter au...
November 12, 2008

french
Hi I'm back and this time for the same reason as to get my french proofread and to know if I am actually doing this right. I will post the english part here is the first one English Come see the winter festival carnaval if you get the chance. Meet bonhomme at the ice ...
November 12, 2008

french
thanks and sorry for not saying things in english :( this is my first time using it i'll make sure to type what i'm trying to say in english next time
November 11, 2008

french
Can someone proofread this please? I'm terrible at proofreading french -_- Pretty much it's like this i need to get 5 interesting places or facts and write 5 sentences about them. Right now i only have 2 sentences and will post more later so here it is Visiter au Qu&...
November 11, 2008

science
no its not d or c either
November 8, 2008

College Algebra
Solve the equation by expressing each side as a power of the same base and then equating exponents. 3 (6-3x) = 1/27 {9} {1/9} {-3} {3}
November 5, 2008

6th grade- Language
Help writting a book report or a book that is not easy to comprehend
October 23, 2008

CHEMISTRY
CALCULATE THE MASS OF 8.37X10TO THE 25 MOLECULES OF DINITROGEN TETRAHYDRIDE
September 28, 2008

CHEMISTRY
CALCULATE THE FORMULA UNITS IN 285G OF IRON (111)PHOSPHATE?
September 28, 2008

com150
I believe the answers are A B A A A B B A A A B B B B A B A B B A A B A A A
September 26, 2008

Microeconomics
Given the utility function U(C,T) = 3C+2T A budget constraint of $50, C = coffee which is $2 a cup, and T = tea which is $1.25 a cup, what is the optimal consumption bundle, and maximum utility possible? Also derive an expression for the demand curve for coffee given the price...
August 14, 2008

chemistry
Its 6.8 grams. the people above me dont know what theyre talking about.
June 10, 2008

algebra
the sum of two numbers is the same as four times the smaller number.if twice the larger is decreased by the smaller,the result is 30.find the numbers
May 26, 2008

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