Wednesday
November 26, 2014

Posts by francis


Total # Posts: 108

Advanced Algebra
If a pond can support up to 10, 000 fish, the rate of growth of the fish population is jointly proportional to the number of fish present and the difference between 10, 000 and the number of fish present. The rate of growth is 90 fish per week when 1, 000 fish are present. a. ...
November 15, 2014

College Algebra
How to solve this system? x + [(3x-y)/(x^2+y^2)] = 3 y - [(x+3y)/(x^2+y^2)] = 0
October 11, 2014

mechanics and fluids
a block of mass 6 kg resting on a horizontal surface is connected by a cord passing over a light, frictionless pulley to a hanging block of mass 4 kg. the coefficient of kinetic friction between the block and the horizontal surface is 0.5. after the block are released, find ...
September 8, 2014

physics
I don't understand what you tryna say.
July 31, 2014

physics
A solid of mass 1kg suspended by a string is completely immersed in water. If the tension in the string is 5N, calculate the upthrust on the solid. (take g = 9.78m/s)
July 31, 2014

physics
I still don't understand.
July 31, 2014

physics
Calculate the energy required to vapourise 50g of water Initially at 80¡ãC if the specific heat capacity of water is 4.2 J/g.k. (specific latent heat of vapourisation of water is 2260 J/g)
July 31, 2014

maths
2x^2 + 2y^2 - 8x + 5y + 10 = 0
July 30, 2014

physics
Constructive interference will occur, cos constructive interference occurs wen d path difference btw identical waves at a point is n¦Ë...where n = 0,1,2,3... Destructive interference occur wen d path difference btw two identical waves at a point is n¦Ë ...
July 30, 2014

Maths (differentiation)
Differentiate Y = 1/SinX^2
July 28, 2014

maths
Thank you you're awesome
July 18, 2014

maths
factorize completely X^2 + 2X^2 - 15X / 2X^2 - 18
July 18, 2014

Maths (factor theorem)
9x^2 6xy 4y^2 is a factor of 27x^3 - 8y^3, find the other factor.
July 18, 2014

Maths
(243/32)^-1/5 ¡Á 2^-2
July 18, 2014

Maths
if p:q=2/3:1/6 & q:r=3/4:1/2. find p:q:r
July 18, 2014

Physics
The tension in the string provides the centripetal force for objects tied to a string & movin in a circular path. Ft = mv^2/r where m=mass of d object, v=uniform velocity of d movin body & r=radius of d circle formed by d moving string 1 revolution = 360¡ã or 2pie...
July 18, 2014

world history
Search on Google.
June 1, 2014

Math
1 - 2/7 = (7 - 2)/7 = 5/7
May 29, 2014

Science 1 question
If you're doubting check google, I'm positive that it's A.
May 21, 2014

Science 1 question
The answer is A.
May 21, 2014

maths/permutation and combination
Find the number of ways, the digits 0,1,2 and 3 can be permuted to give rise to a number greater than 2000. Please I need an explanatory workings!!!
May 21, 2014

Maths (Integration)
Please can you show an explanatory working, just to be able to work a similar question. thanks
May 21, 2014

Maths (Integration)
Integrate(1+x/x^3)dx Don't know how to go bout this, if the numerator was a whole number it would ve been easier for me, Pls help me out.
May 21, 2014

Maths
Sorry one more thing, how do you get the slope?
May 21, 2014

Maths
Alright, thanks.
May 21, 2014

Maths
ok, can you pls direct me on how to work a similar question?
May 21, 2014

Maths
So the question is wrong?
May 21, 2014

Maths
find the equation of the perpendicular bisector of the line joining P(2, -4) to Q(-5,1) A. 8y-14x 13=0 B. 8y-14x-13=0 C. 8y 14x-13=0 D. 8y 14x 13=0 Please I need someone to help me with this, with an explanatory workings.
May 21, 2014

Algebra - Functions
1) Given that F(x) = -5+7x^2, find and simplify: 8F(x) = F(8x) = 2) Find the domain of the function: f(x) = -2x+12 q(v) = ^9sqrt(-3v+14) f(x) = [(x-5)/(sqrt(15-x))] B(y) = [7/(81-(1/y^2))]
February 26, 2014

MATH ANALYSIS & TRIG
At noon, Al is 6km north of point O traveling south at 10km/h. Also at noon, Barb is 2km east of point ) traveling east at 5km/h. A) express the distance "d" between Al and Barb as a function of time "t" hours after noon. B) Find the time at which the ...
October 29, 2013

Chemistry
A sample of iron weighing 15.0 g was heated with potassium chlorate (KClO3) in an evacuated container. The oxygen generated from the decomposition of KClO3 converted some of the Fe to Fe2O3. If the combined mass of Fe and Fe2O3 was 17.9g,calculate the mass of Fe2O3 formed and ...
August 22, 2013

physics
A toboggan slides down a hill and has a constant velocity. The angle of the hill is 6.50° with respect to the horizontal. What is the coefficient of kinetic friction between the surface of the hill and the toboggan?
June 30, 2013

math
A tractor tyre has a radius of 7cm and it made 1600 complete revolutions on a journey.How many metres did the tyre travel?
June 4, 2013

science
you are asked to make a 0.3M Calcium chloride solution in a flask that can hold 200ml.How would you do it.
February 16, 2013

math
tilissa was on the middle rung of a ladder.she went up 3 rungs,thendown 5 rungs and then up 7 rungs where she rested.later she climbed up the remaining 7 rungs on the ladder.how many rungs did the ladder have?
January 27, 2013

English HL
I dont know what to write that's why i need help on ma essay
January 27, 2013

English HL
An essay about("Be quiet,"the leader hissed."they, mustn't know we are here".
January 27, 2013

Physics
A slingshot with k = 400. N/m is pulled back 0.0500 m to shoot a 0.100-kg stone. If the slingshot projects the stone straight up in the air, (a) what is the speed when the stone is first released, and (b) what is the maximum height to which the stone will rise? [neglect ...
December 27, 2012

Physics
Thanks so much! Yeah, it's weird it says 0.05 meters. Thanks though!
December 27, 2012

Physics
A slingshot with k = 400. N/m is pulled back 0.0500 m to shoot a 0.100-kg stone. If the slingshot projects the stone straight up in the air, (a) what is the speed when the stone is first released, and (b) what is the maximum height to which the stone will rise? [neglect ...
December 27, 2012

math
I work 1 and 1/4 hour per day how many hours do I work per week and for five weeks
November 26, 2012

gallegos
"Robert can swim the first 50 meters of a race in 1 minute. Then he slows down by 12 seconds for each of the next 50 meters of a race. How long will it take Robert to swim a 400-meter race?
November 26, 2012

gallegos
"Robert can swim the first 50 meters of a race in 1 minute. Then he slows down by 12 seconds for each of the next 50 meters of a race. How long will it take Robert to swim a 400-meter race?
November 26, 2012

Social Studies
List the unique circumstances of the interwar period that may have led to ultranationalism.
October 22, 2012

Social Studies
Which underlying circumstances occurring during the interwar period of 1919 to 1939 may have influenced whether or not nationalist interest was nationalist or ultranationalist?
October 22, 2012

Social Studies
What national interests lead to ultranationalism?
October 22, 2012

Math Ratios
LOLZ CAT
September 13, 2012

spanish
1). What is a "cognate"? 2). Why is learning cognates the most efficient and rapid way to learn to read, speak, increase vocabularly and get high marks on tests in a foreign language? Bonus question: What is the relationship between "cognates" and "...
June 23, 2012

vocab
These are alternatives, but not synonyms: myopic = short-sighted incompetent = doesn't know how homicidal = wants to kill people cannibal = likes to hunt and eat other people tallest shortest strongest
June 23, 2012

social studies
The first thing to know about this question is that it is about a hotly-debated political topic. People on different ends of the political spectrum have different answers to offer. There is NO answer that everyone agrees is true or most meaningful. To see the opposing ...
June 20, 2012

College
underwriter
June 19, 2012

College Essay
Your "story" works as creative writing, but not as a college admissions essay. Look for the word "special" in the essay question and you probably won't find the word "special." "Special" is NOT synonymous with "significant,"...
June 18, 2012

College Essay
Since this essay is a "common essay" and will be seen by all of the schools to which you apply, it is a very important essay. It can determine whether you get into any of your favorite schools. I take your essay seriously. This response comes from a lawyer who wrote ...
June 18, 2012

spanish
1. Cómo estás? (informal) /Cómo está usted? (formal) 2.) No me interrumpes. (informal) No me interrumpe. (formal)
June 17, 2012

SPELLING HELP
Will my teacher eject me from class and from school if I copy someone else's essay? If she doesn't eject me, will she still consider me to be morally bankrupt? I asked someone to write my story for me, but she objected. She projected onto me the motive of using the ...
May 21, 2012

trig
If x and y are complementary angles and 5 tan x-12=0,calculate by using a diagram the value of 2sin(squared)x+cos y.
May 3, 2012

math
Use SOH, CAH, TOA which is Sin20 = opposite/adjacent, Cos20 = adjacent/hypotenuse, Tan 20 = opposite/adjacent
March 10, 2012

Geography - Italy
I would really appreciate some help to find some information. -Thanks, Francis
March 1, 2012

Geography - Italy
My teacher gave us a reprt to do a brochure on italy such as currenices, goverment, sports, restaurants, and so far I have about 2 good website (withuout wikipedia!!!).
March 1, 2012

physics
A stone tied to a strong is made tn resolue in a horizontal circle of radius 4m with angular speed of 2 radian,persecond with what tingential velocity will the stone move off the circle if the string cuts
October 18, 2011

Physics
Swimmer C crosses the river more quickly because she is traveling faster, at the speed of the river plus the speed of her added effort.
September 21, 2011

literacy
what sentence can you put the words collector and arrangement in 1 sentence
September 21, 2011

5/90 lotto winning numbers
3 lotto winning numbers of 5/90 lotto to draw on 28.12.2013
July 14, 2011

Health care
How has the payment of health care providers evolved over time? What caused these changes?
May 26, 2011

math
35 words per minute
April 26, 2011

Math
Are the last two 4.892 and 5.920?
April 26, 2011

Math
What are the following numbers rounded to the nearest thousandth: 0.00673, 63.4982, 4.8919, 5.9198.
April 26, 2011

Political Science
If America were to propose an amendment allowing children to be represented as voters through their guardian or parent do you think this is a good thing? For example, a parent of a young child will give two votes, one for themselves and then other on their child's behalf. ...
April 18, 2011

Social Sciences
Ok I could have just typed that myself into he search bar. Thanks for your help regardless of how redundant it was. I understand this is a free service but please at least try to attempt to help. Copy/paste is not really helping. Thanks.
April 14, 2011

Social Sciences
I am writing a paper about a new amendment proposal to the Bill of Rights proclaiming that people should be able to marry who they want (same sex or not). I need an opening statement that declares the amendment in congressional form and is a paragraph long. I am not familiar ...
April 14, 2011

Physics
Thank you so much!
April 12, 2011

Physics
a bike is 25% efficient in converting energy of the bicyclist to mechanical energy. If a cyclist is travelling along a pathway at a constant speed of 5.8 m/s for 3600 s, and the average resistance is 22 N, how much mass does she lose assuming 1 kg is lost for each 2.9 x 10^7 J...
April 12, 2011

Physics
Aa particular bicycle is 25% effificent in converting the energy of a cyclist to mechanical energy (that is, she puts in four times as much energy as she gets out). if a cyclist is travelling along a pathway at a constant speed of 5.8 m/s for 1 h, and the aveage resistance is ...
April 12, 2011

5 of 90 lotto equation formula
2 of lotto 5/90 to win 16/08/2014
March 30, 2011

competitiveness,strategy,and productivity-operatio
As a consumer,what things do you consider in judging the quality of cookies you buy in a supermarket
February 22, 2011

operation
Briefly desribe the cookie production process
February 22, 2011

social studies
thanks!
December 13, 2010

social studies
could someone tell me about an intresting place to visit in washington d.c. that starts with a c-z
December 13, 2010

adult education
waiting for ans for george question posted nov 2010
November 8, 2010

adult education
l need the ans to the above qeustion posted by george nov 2010
November 8, 2010

geography
What Does Lobbying mean in terms of decision making on enviroment issues? Thank You For Answering My Question
September 29, 2010

science
I have a container which hold 30ml of fresh water that I need to heat to boiling using electricity run through an assumed efficient resistor. Assuming an ambient temperature of 23 degrees celsius how much watt energy do I need to put into 30 ml to bring the temperature to 100 ...
September 21, 2010

PHYSICS
An entertainer juggles balls while doing other activities. In one act, she throws a ball vertically upward, and while it is in the air, she runs to and from a table 5.50m away at a constant speed of 2.50m/s, returning just in time to catch the falling ball. (a)With what ...
July 13, 2010

Physics
Two vectors A and B have magnitude A = 3.00 and B = 3.00. Their vector product is A x B= -5.00k + 2.00i. What is the angle between A and B?
June 30, 2010

Social Studies
What was Jefferson's laissez-faire policy? Can you Give an example of it.
November 30, 2009

Social studies
Dude,That pretty much ever native american tribe!!!
November 30, 2009

algebra
3x=27-15x 3x+15x=27 18x=27 x=27/18 x=3/2
September 29, 2009

6th grade_Science/Math
sorry i submitted it two times
January 27, 2009

6th grade_Science/Math
well the answer to that is about 2,102,400 times that the boulder will be hit in a year Its is so because i did what dwrls said and thats the correct answer
January 27, 2009

Writing
why was the whitehouse placed in washington d.c
November 8, 2008

maths
4 x 25 stamps and 5 x .02 = 1.10
November 8, 2008

chemistry
(CH3)2CHCH2CH2CH3 + Br2, heat 2. NaOCH3 C is best methode Bromination of alkane is most favourable due to less bond disassoction energy between C and Br molecules after substution of halogens ( Acctuvally I2 has less but it is revesable reaction) Order of I2 ¡ê 2I...
November 8, 2008

college
importance of pharmacy delivery time of a 50mm burette calibration of a burette importance of uniformity of weight og tablets
September 11, 2008

social studies
define: nation state nation-state
April 17, 2008

social studies
the city
April 17, 2008

social studies
Physical Characteristics Of Strasbourg
April 17, 2008

social studies
What will probably happen to the national identity or individual states as the European Union becomes stronger and a more important economic force?
April 17, 2008

social studies
Describe the site & situation of Strasbourg.
April 17, 2008

Science
C6H5NH2 + H2O C6H5NH3+ + OH- 1. Aniline, a weak base, reacts with water according to the rxn above. a. A sample of aniline is dissolved in water to produce 25.0 ml of a .10 M soln. The pH of soln is 8.82. What is Kb for this rxn? b. The soln in part b, is titrated with...
April 12, 2008

math
2e3 + 3e --------------------------------------... -5e � × � -15e2 + 20e --------------------------------------... 10e5 + 15e3 3e - 5 --------------------------------------... 5e 2(e - 2) --------------------------------------... 5e2 3e - 4...
March 31, 2008

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