Saturday
November 29, 2014

Posts by Ben


Total # Posts: 727

science
which of earth's spheres extends into all others
November 11, 2009

Math
Use linear approximation, i.e. the tangent line, to approximate sqrt[3] { 8.4 } as follows: Let f(x) = sqrt[3] x. The equation of the tangent line to f(x) at x = 8 can be written as y=mx+c where m=1/12 b=4/3 find the approximation for sqrt[3] {8.4}
November 8, 2009

8th grade
Please Help Me. I'm doing a Science Fair Project, and I need help with finding simmilar experiments to mine. My experiment is: Which saliva is cleaner: Cat, Dog, or Human???
October 28, 2009

world history
why did the industrialized nations of the world embark so aggressively upon imperialist ventures between 1880 and 1914?
October 26, 2009

Physics (Rotational Kinetic Energy)
Hello, The question is: A solid ball rolls along the floor with a constant linear speed v. Find the fraction of its total kinetic energy that is in the form of rotational kinetic energy about the center of the ball. Krot/Ktotal = ? The answer I keep getting is 3/1, but the ...
October 21, 2009

psychology
It also depends on the habituation of the stimulus. Rather than conditioned excitation, you would get conditioned inhibition here.
October 21, 2009

Biology
How is the expression of sex-linked genes similar and different from the expression of autosomal genes?
October 21, 2009

Biology
How is the expression of sex-linked genes similar and different from the expression of autosomal genes?
October 20, 2009

french
YOU legs hurt?
October 20, 2009

English
free verse does not mean don't use needed punctuation or capitalization. As I searched for examples of free verse, I found many that didn't have punctuation (which caused ideas and thoughts to run together) and didn't have capitalization, which distracts from the ...
October 20, 2009

Biology
I am having trouble descibing how the expression of sex-linked genes is similar and different from the expression of autosomal genes?
October 20, 2009

economics
Suppose that the government decides to charge cola consumers an excise tax. Before the tax, the market is in equilibrium, where 12 million cases of cola are sold every month at a price of $3.50 per case. After the tax, 6 million cases of cola are sold every month; consumers ...
October 16, 2009

math 8th grade
72/100=x/200 **cross mulitply: 100x=72*200 100x=14400 x=14400/100 x=144 ______ Or just multiply .72 by 200 .72*200=144
October 5, 2009

Physics (Normal Force)
When a book weighing 10 N is placed on a table, the table exerts a normal force of 10 N on the book. When a crate weighing 250 N is placed on the same table, the table exerts a normal force of 250 N on the crate. Explain the mechanism that allows the table to exert just the ...
October 1, 2009

calculus
how do you solve e^(9ln2)
September 29, 2009

10th grade algebra
7x-15y+9=0 **Subtract 9 from both sides 7x-15y=-9 **Subtract 7x from both sides -15y=-7x-9 **Divide both sides by -15 y=(7/15)x+(9/15) <--- equation isolate for y
September 22, 2009

chemistry
12
September 18, 2009

biology
What do you think?
September 7, 2009

Math (Angle Calculation)
Would -75.74 degrees be the same as 284.26 degrees?
September 7, 2009

math
Could you tell me how exactly to graph piecewise functions.
July 23, 2009

Physics
anyone know the answer?
June 25, 2009

pchem
Use R = 8.2 × 10–5 m3 atm/mol K and NA = 6.02 × 1023 mol–1. The approximate number of air molecules in a 1 m3 volume at room temperature (300 K) and atomospheric pressure is: 41 450 2.5 × 1025 2.7 × 1026 5.4 × 1026
June 24, 2009

Chemistry College (Need to know!)
How is this Possible GK. Everywhere I have looked, including mark schemes and chemistry websites dH(solution) is worked out via this equation: dH(solution) = dH(LE) - dH(hyd) + dH(hyd) What is it you are working out with solute and solvent?
June 11, 2009

Chemistry College (Need to know!)
Am I Correct in assuming this? dH of solution = -dH of lattice enthalpy + dH of hydration E.g: dHsolution NaCl = -dHLE NaCl(s) + dHhyd Na+(g) + dHhyd Cl-(g) Units as kJmol-1
June 11, 2009

Chemistry College
Am I Correct in assuming this? dH of solution = -dH of lattice enthalpy + dH of hydration E.g: ÄHsolution NaCl = -ÄHLE NaCl(s) + ÄHhyd Na+(g) + ÄHhyd Cl-(g) Units as kJmol-1
June 10, 2009

Chemistry College
Well to be honest I wasn't there for the teaching of this in my class due to University interviews. I was just wondering how you actually work through them as other websites i have been on have all been in too much (universty standard) detail. Thank you for the fast response!
June 10, 2009

Chemistry College
Is there a simple formula for the Enthalpy of solution and/or hydration?
June 10, 2009

english
hi what does this quote mean I am responsible. Although I may not be able to prevent the worst from happening, I am responsible for my attitude toward the inevitable misfortunes that darken life. Bad things do happen; how I respond to them defines my character and the quality ...
May 24, 2009

8th grade
its not beef flat retard.
April 1, 2009

us
hi i have to write a paper stating that malcolm x was a better leader than martin luther king jr. I need a lot of help
March 30, 2009

history
what other civil rights leaders could i really use
March 24, 2009

history
hi. I need to write a 5 page paper describing how Martin Luther King's leadership was not needed in the civil rights movement. I need a lot of help and information. Thank you soo soo much.
March 24, 2009

chemistry
i dont get part three at all please help
March 16, 2009

chemistry
suppose that you could decompose 0.250 mole of Ag2s into its elements a.How many moles of silver would you have? how many moles of sulfur would you have? b. how many moles of ag2s are there in 38.8 g of AG2S? how many moles of silver and sulfur would be produced from this ...
March 16, 2009

chemistry
can u show me how to set it up because i dont get it at all
March 16, 2009

English
I'm confused. In the Great Gatsby, did Myrtle get killed in Chapter 8 or was that a flashback, or something that Nick just learned of at that time? Thank you
March 12, 2009

science
look
March 12, 2009

Historical Fiction
My teacher wants me to write a historical fiction story. We need a source from the internet with ".edu" at the end of the address. My paper is going to be on World War II, so could you find a website on World War II with ".edu" at the end?
March 2, 2009

Chemistry
2. Calculate the volume for the following object If you know that the object has a mass of 24 grams and the density is 12 g/ml. I tried to get rid of the 24 by multiplying it on both sides, and dividing on both sides, but neither worked. What will then? Thanks!
February 15, 2009

Jiskha in General
Are some of the people on this site teachers? How do they have time to answer our questions? Don't they have to grade papers and such? I'm just curious and grateful that some people are willing to always be on here.
February 15, 2009

chemistry
We have 1 mol of N2 gas that is heated at constant pressure from 300K to 5770K on the surface of the sun. i) Find H and S given that P for nitrogen is (25.7 + 0.0130T) J/mol-K. ii) Now, redo your calculation assuming that the second T-dependent term in the P ...
February 11, 2009

4th grade
What is the correct way to write each of these Titles correctly? 1.highlights 2.child of fire 3.the downtown news 4.number the stars
February 5, 2009

MIST
SIN (X+Y) SIN (X-Y) = SIN ^2X - COS ^2Y
February 3, 2009

History
Hi. I need to find a lot of information on World War II. My teacher wants me to use only websites that have .edu at the end. Could you help me find a website?
January 31, 2009

math
sketch the graph of y^2=(1/4)x
January 30, 2009

physical science!!!!!!!!
1. Alex pulls on the handle of a claw hammer with a force of 15 N. If the hammer has a mechanical advantage of 5.2, how much force is exerted on a nail in the claw? 2. While rowing in a race, John pulls the handle of an oar 0.08 m on each stroke. If the oar has a mechanical ...
January 22, 2009

physical science
Alex pulls on the handle of a claw hammer with a force of 15 N. If the hammer has a mechanical advantage of 5.2, how much force is exerted on a nail in the claw?
January 22, 2009

history
did native american colonize or immigrate?
January 19, 2009

calculus
It is known that if m <= f(x) <= M for a <= x <= b, then the following property of integrals is true. m(b-a) <= int_a^b f(x)dx <= M(b-a) Use this property to estimate the value of the given integral. ? <= int_0^3 3/(1+x^2)dx 2 <= ? solve for the ?
January 17, 2009

calculus
given: f(x) = 2-1/4 x Evaluate the Riemann sum for 2 ≤ x ≤ 4 , with six subintervals, taking the sample points to be left endpoints.
January 16, 2009

Chemistry
How can you separate compounds?
January 13, 2009

us history debate
i really don't know what to do. PLease please help me
January 12, 2009

us history debate
Hi. I am doing a debate on wheter united states imperialism in the late 1800s to early 1900s was justified. I am on the side that states that imperialism was justified. I need help coming up with points to put in my rebuttal. i already have my opening statemnt done but I don&#...
January 12, 2009

Algebra
Give the domain for each of the following: 5+2y/6 5-r/r 2y+1/y+5 I dont get these so yea thank you!
January 8, 2009

Recent History
I don't understand what the big deal was about Y2K. Why would the world stop just because the computers would...I mean we existed all of these years without computers. It would make life more difficult certainly, but it wouldn't entirely end life as we know it.
January 5, 2009

Math
How do you compute 10 (to the -4)(as the exponent)
December 8, 2008

philosophy
Why do the Skeptics treat lack of belief as the goal of life? what purposes does that serve for them?
December 5, 2008

physics
bjkhkh
December 2, 2008

calculus
Find an equation of the tangent line to the curve at the point (0, 1). y = (1 + 3x)20 i got y' = 60(3x+1)^19 what do i do next?
November 10, 2008

calculus
differentiate y=x sin((4)/x)
November 10, 2008

eng
how would i deal with this? Each generation has some thing valuable to offer This generation information dispersal, my generation-heavy metal my parents--they paved the way
November 4, 2008

English
teacher
November 3, 2008

English
no kidding that's the way they want it for the outline. They also want us to show our stylistic devices in the outline. Just a weird way of learning it.
November 3, 2008

eng
Outline: 4) Also the Government will not incur the cost of defaulted student loans. a. High debt loads are not being paid (Stat) 800 million overdue on defaulted loans b. Relief programs are faulty (Fact) Debt management programs require loans to be in good standing (not in ...
November 3, 2008

eng
hows my outline look? Outline: 1)Post secondary education is unaffordable A)Poor students can’t afford tuition (Stat) tuition has increased by Fifty-percent B) The Government has implemented grants, scholarships and student loans to help. Thesis: I’m going to write ...
November 3, 2008

calculus
Show that the curve given below has no tangent line with slope m1, where: y = 4 x^3 + 8 x - 6 m1 = 7
November 3, 2008

calculus
find the points on the curve y=2x^3+3x^2-12x+1 where tangent is horizontal.
November 3, 2008

chemistry
write the total and net ionic equation for calcium hydroxide(aq) -> acetic acid(aq)
November 1, 2008

chemistry
How many total moles of ions are released when each of the following samples dissolves completely in water? 30.2g of Ba(OH)2 8H2O
October 31, 2008

Chemistry
is KAl(SO4)2 12H2O hygroscopic, deliquescent, or efflorescent?
October 30, 2008

english
Ok, having some troubles the question is why does soccer inspire so much passion around the world probably because it provides a unifying identity. Gives the poor something to aspire to, provides role models, and unities them for a common purpose. do i have to much ?
October 30, 2008

Calculus derivatives
f(a) = a + √a (a) Find the derivative of the function using the definition of derivative.
October 27, 2008

chemistry
calculate the number of Mg2+ ions in each mL of 0.162M(molarity) magnesium bromide
October 26, 2008

evaluate my english pls
Analysis of “A Hanging” George Orwell’s “A Hanging” shows the inhumanity of capital punishment. He uses a narration to describe the sequence of events involved in the hanging of an Indian prisoner. By using vivid images the horrors are shown. Overall ...
October 24, 2008

evaluate my english pls
i copied and paste it..but doesnt seem to work
October 24, 2008

evaluate my english pls
Analysis of “A Hanging” George Orwell’s “A Hanging” shows the inhumanity of capital punishment. He uses a narration to describe the sequence of events involved in the hanging of an Indian prisoner. By using vivid images the horrors are shown. Overall ...
October 24, 2008

english
thanks ms. sue im finally getting that stuff... its been 20 yrs since i did grammar..
October 23, 2008

english
one says each boy so i assume its singular...so the very has to be his 2-I I are going to the store jane and i are going to the store not sure what is singular and plural and subject , object, and all that stuff.
October 23, 2008

english
1. their 2 me 3 we 4 me and bob 5 who
October 23, 2008

english
hey can u help me with punctuations are these correct> having problems with pronoun agreement. My answer are the end of each sentence. 1. Each of the boys washed (their his) dishes. His 2. Jane and (me I) are going to the store, Mom! Me 3. (We Us) and our friends signed ...
October 23, 2008

CHemistry
73.9%
October 22, 2008

eng 12
I got to analyze suzukis history at our peril. How should i present my analysis? suppose to tell why its expository? then provide examples. Should i state why in the first paragraph why its expoisitory? ie he talks about how humans need to protect the environment or it will ...
October 22, 2008

help wit my analysis
oh, we get 3 points for telling why its expository 3 for three examples of support 1 title 1 author 2 for mainpoint
October 22, 2008

help wit my analysis
In “What is poverty” Jo Goodwin Parker uses an expository essay to define the realities that she faces. She believes poverty can’t be described by the lack of food, clothing, shelter, housing or water. Nor does she think it’s a statistical measure. She ...
October 22, 2008

Psychology
psychological are mental and phsiological are physical maslow just said we strive for greater satisfaction. Once primary needs are met we strive to full our inner desires ? so for example. If your poor then your basic needs are not met so you cant pursue your inner desires ...
October 22, 2008

math
I would pick Box B because you have a 60% chance of picking a red marble in Box A and you have a 66.6% chance of picking a red marble in Box B.
October 22, 2008

Statistics
One-fifth of the population is left-handed. A random sample of 20 people is selected. a) What is the probability that no more than 6 of the next 20 people are left-handed. b) What is the probability that at least 4 of the next 20 people are left-handed.
October 22, 2008

Math
How do I write a word problem that matches this expression:10-(2x4)?
October 21, 2008

english 12
thanks, humans are causing killing all the animals, polluting the plants, pollution, ozone, basically messing up the biodiversity of the species...
October 21, 2008

english 12
i think u got it wrong we are suppose to id the thesis and then tell why its a cause effect essay don't need any position
October 21, 2008

english 12
what is the thesis suppose to do analysis of this essay to show its cause effect. How do i start it ? June 15, 2001 - More than 13,000 years ago when humans first set foot in the Americas, there were no roads crisscrossing the landscape, no sprawling cities, no vast fields of ...
October 21, 2008

chemistry
The closest would be Krypton, not Radon
October 16, 2008

college physics
0.81
October 5, 2008

chemistry
what products would be obtained if chromium oxide was mixed with sulpheric acid
September 24, 2008

math riddle ALGEBRA WITH PIZZAZZ
Rolling in the isles
September 14, 2008

science
Two workers pull horizontally on a heavy box, but one pulls twice as hard as the other. The larger pull is directed at 25.0 degrees west of north, and the resultant of these two pulls is 350.0 N directly northward. Use vector components to find the magnitude of each of these ...
September 14, 2008

MATH
x/6=84, x=504 x/7=?, 504/7=72 the answer is 72
September 7, 2008

Calculus
Find the derivative of Integral from -5 to sin(x) of cos(t^3)+t
September 7, 2008

Social Studies
Can you give me an example of a human resource? I know what natural resources and capital resources are. Would a human resource be an occupation like farmer or police officer? We're supposed to list examples.
August 25, 2008

english
hi can someone please pleas help me. All I need is a thesis for this question that I am writing an essay for. Analyze the impact of the Atlantic trade routes established in the mid 1600's on economic development in the British North American Colonies.
July 23, 2008

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