Eileen
Most popular questions and responses by Eileen
physics
A 1000 kg car is rolling down the street at 2.5 m/s. How fast would a 2500 kg car have to collide into it in order to bring it to rest (0 m/s)?
asked on December 1, 2012 
Chemistry
Consider the following chemical reaction: C (s)+ H2O(g) > CO(g)+ H2(g) How many liters of hydrogen gas are formed from the complete reaction of 1.20 mol of C? Assume that the hydrogen gas is collected at a pressure of 1.0 atm and temperature of 310 K.
asked on April 16, 2010 
Calculus
Evaluate integral(5x5/3x^28x3) dx.
asked on May 15, 2011 
Physics
Two electrons are fixed 2cm apart. Another electron is shot from infinity and comes to rest midway between the two fixed electrons. A)Find the energy of the system initially( unknown quantity leave as a variable) B) Find the final energy of the system?(
asked on March 28, 2012 
Chemistry
Name the following: CH3CH2CH(OH)COOH CH3OCH2CH2CH3 C4H9O(C=O)CH3
asked on February 18, 2009 
Chemistry
Oxygen gas reacts with powdered aluminum according to the following reaction: 4Al(s)+3 O2(g) > 2 Al2O3 (s) How many liters of O2 gas, measured at 789 mm Hg and 35 C, are required to completely react with 2.2 mol of Al?
asked on April 16, 2010 
Circuits Problem (Physics)
h t t p ://img266.imageshack.us/my.php?image=circuit2ru6.png Given the circuit above: a) Solve for unknown currents. b) What is the potential difference between points a and b? c) If both batteries start with 20 A*h of charge, how long does it take the
asked on April 12, 2008 
Calculus
If a ball is thrown into the air with a velocity ofc 40ft/s,its height in feet after t seconds is given by y=40t16t^2. Find the velocity when t =2. Could you please show the steps
asked on June 30, 2010 
PSYCHOLOGY
Review the case scenario provided in the Learning Resources and focus on the various budget expenses related to personnel services. Review Chapter 3 of your course text, The Basics of Public Budgeting and Financial Management, and the budget template
asked on May 6, 2011 
physics
What must the water pressure be to supply water to the third flor of a buiking 35.0 ft up with a pressure of 40.0 lb/in(2) at that level? I have the answer,but I need to know how to get the answer. thanks
asked on October 30, 2010 
Physics
a force of 400 N Pushes on a 30 kg box. Starting from rest, the box attains a speed of 4 m/s in 5 seconds. determine the mu between the box and floor.
asked on December 14, 2011 
Physics
A 2010 kg car traveling to the west at 18.5 m/s slows down uniformly under a force of 8880 N to the east. a) How much force would be required to cause the same acceleration on a car of mass 3120 kg? How far would the car move before stop ping? Answer in
asked on November 13, 2011 
PLANNING AND BUDGETING
Week 3 Application: Case Scenario Capital Improvement Plan Background Every two years, the city prepares a capital improvement plan (CIP), which forecasts capital improvement needs, revenues, and expenditures. This year you have been asked to submit
asked on May 6, 2011 
Biology
The half life of carbon14 is 5,730 years.how much of an initial amount of this substance would remain after 17,190 years(3 Halflifes
asked on November 23, 2010 
College Chemistry
What mass of ice, at 0.00 C can be converted to steam, at 100 degrees C, if it absorbs 1.00 x 10 (to the 6th power) Jules of heat energy? How do you find the mass of ice?
asked on May 12, 2011 
Science
A 5.0ml aliquot of a sample was transferred to a 25.0ml flask and acidified by addition of 2.5ml of 0.1M HClO4 and diluted to mark. 1.0ml of that solution was mixed with 5.0ml of 1 X 104M AYR(Aluminum)dye and 15.0ml ethanol in a 25.0ml flask and diluted
asked on September 2, 2010 
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 on July 26, 2010 
Continued physics problem from before (way down)
Posted by Eileen on Sunday, April 13, 2008 at 10:05am. I am trying to do these 2 problems. I'm starting out with the RC Circuit (2nd one): h t t p ://img201.imageshack.us/my.php?image=circuit5ij7.png *delete spaces or link won't load! a) The capacitor acts
asked on April 13, 2008 
science
can you unscramble the following letters to name a six legged animal pergorsaph
asked on November 28, 2012 
Chemistry
When acetic acid reacts with sodium hydroxide, what are the two products that are formed?
asked on February 18, 2009 
conceptual chemistry
the density of air at 25dergees C and 1 atmosphere of pressure is about 1.18 g/L. What happens to the dnesity of air as the temperature is increased. When the pressure is incrased?
asked on February 16, 2011 
math 111 urgent please help
Find a degree 6 polynomial with  8 as a root, no other roots, and in which the coefficient of x^6 is 16. Assume that all (nonconstant) factors of the polynomial correspond to real zeroes.
asked on November 4, 2010 
Math urgent
Find a degree 6 polynomial with  8 as a root, no other roots, and in which the coefficient of x^6 is 16. Assume that all (nonconstant) factors of the polynomial correspond to real zeroes.
asked on November 3, 2010 
Math
Evaluate the difference quotient for the given function. f(x)=1/x, f(x)f(a)/(xa). Is the answer 1
asked on August 24, 2010 
Calculus
Diffentiate the function F(x)=(1/2x)^5 My answer is 5/2x^4. The book says 5/32x^4. what am I doing wrong?
asked on July 1, 2010 
math
make a line plot for each set of data. Identify any clusters, gaps and outliers. daily low temperatures 26F, 25F, 24F, 29F, 28F, 21F, 10F number of stories in town buildings 3, 3, 1, 1, 8, 6, 6, 4, 3, 23, 7, 9
asked on May 7, 2013 
Calculus
Evaluate integral(3x^228x3)/(x^32x^23x)dx.
asked on May 15, 2011 
planning and budgeting
I need to know 8 questins that would be asked by a city council meeting related to a new criminal justice facility. (political, tax, demographic, and administrative questions)
asked on May 15, 2011 
physics
Calculate the mass of the Earth, if it had a radius of 3000 km and a gravity of 6 m/s^2.
asked on October 31, 2010 
Physics/Force
building a device to shoote a plastic hockey puck with a lever (think pinball) attached to a bungie cord. How much force is needed to propel a plasic hockey puck 30 feet or 40 feet or 50 feet  what formula should I use? Can I calculate the force by how
asked on October 28, 2010 
Math
Simplify 2x+1/2*sqrt(x2)2*sqrt(x2)/(2x+1)^2
asked on July 20, 2010 
Math
Determine the slope of the tangent line to the curve y=2x^33x^2+1 at the point (1,0)
asked on July 15, 2010 
Calculus
differentiate the function R(x)=sqrt(10)/x^7
asked on July 1, 2010 
Math
Determine the slope of the tangent line to the curve y=2x^33x^2+1 at the point (1,0)
asked on June 30, 2010 
Chemistry 101
What is the function of lipids and cells?
asked on February 22, 2009 
Chemistry 101
Give an example of a hydrophobic group and a hydrophilic group.
asked on February 22, 2009 
Circuit Problem Physics
I am trying to do these 2 problems. I'm starting out with the RC Circuit (2nd one): h t t p ://img201.imageshack.us/my.php?image=circuit5ij7.png *delete spaces or link won't load! a) The capacitor acts as a bare wire with no resistance, so: I=V/R=V/(4/5R)
asked on April 13, 2008 
Short Circuit Problem (Physics)
Thanks so much for all your help damon! I think this is my last one: h t t p ://img408.imageshack.us/my.php?image=circuit1al8.png The reading of the ammeter is 2 A. The reading of the voltmeter is 33 V. Determine the unknown resistance and emf (picture
asked on April 12, 2008 
Algebra
What is the pattern for the next three numbers for 1, 2, 4, 8 ____, ____, ____? Thanks!
asked on December 18, 2015 
science
unscramble pergorsaph to make a six legged animal
asked on November 28, 2012 
Physics
How to attach a file with circuit diagram questions ?
asked on April 14, 2012 
college calculusinitial value
dy/dx=cos(7x)+5/pi initial condition y(pi/4)=2
asked on December 6, 2010 
Math
Differentiate the following function (1/x)(2/x^2)+(3/x^3) I got (9x3)/x^5
asked on October 13, 2010 
science
Estimate the pH of water in equilibrium with CO2 with a concentration of .008867M. Use equilibrium concepts to estimate? Is Kc equilivate to the pH?
asked on September 2, 2010 
Math
Find the critical numbers of the function s(t)=3t^4+4t^36^2
asked on July 18, 2010 
Calculus
Determine the slope of the tangent line to the curve y=2x^33x^2+1 at the point (1,0)
asked on July 15, 2010 
Calculus
Find those values of x at which the tangent line is horizontal to the curve y=xsqrt22cosx
asked on July 1, 2010 
[Physics] super hard/long circuit problem
I have this last one which is really long/hard. It's so long that I just decided to scan the whole problem. So here it is... and thanks everyone for the help so far! h t t p ://img201.imageshack.us/my.php?image=circuit5ij7.png *remember to delete spaces or
asked on April 12, 2008 
Social studies
What is one main difference between a presi9 and a prime minister?
asked on December 2, 2016 
gramman
Why does this pie have less or fewer peaches than the others. Grandmother took my brother and I or me to buy candles
asked on May 7, 2013 
grammar
What is the verb in this sentence? Unlike rita, she had very few friends.
asked on October 19, 2012 
Lab Porcedures
A small sample taken from the body and placed on a medium to allow bacteria growth is a A. profile B. culture C. serum D. specimen Is B correct
asked on August 17, 2011 
calculus
Decompose 58x/x^26x16 into partial fractions.
asked on May 15, 2011 
economics
where can I find current gross domestic product percentages to consumption, investment, defense and foreign trade for Germany & Switzerland for the past five years so I may analyze the info
asked on February 21, 2011 
college calculusinitial value
dy/dx=cos(7x)+5/pi initial condition y(pi/4)=2
asked on December 6, 2010 
region and landforms
which region is known for its highestand lowest landformand temp in the US?
asked on September 23, 2010 
Math
Find absoulute maximum and absolute minimum of the function f(x)=2cost+sin2t
asked on July 18, 2010 
Calculus
Differentiate the function f(t)=1/4(t^4+8). My answer wa 4t^3. The book says t^3. What am I doing wrong,
asked on July 1, 2010 
math
how do i go about converting 2341base5 to base 10?
asked on November 9, 2009 
Chemistry
Why do amines exhibit high solubility in water?
asked on February 18, 2009

geometry
The rafters of a roof meet at a 70° angle. The rafters form part of a isosceles triangle. What is the measure of one of the base angles
posted on March 29, 2015 
history
Liberty League running Alfred M. Landon
posted on September 17, 2014 
Physics
I've tried over and over and get mu = .36 which I know is wrong. (Supposed to be .51) What am I doing wrong?
posted on December 14, 2011 
math
This fraction reduced is 3/4. Take the numerator and the denominator and find the common number that you can divide by and then divide by this. I used 6 18 divided by 6 is three and 24 divided by 6 is 4. If you need more you can also multiply the top and
posted on May 15, 2011 
PLANNING AND BUDGETING
I need help on startig it a lay out then I can go from there. Do I write it out or is it a spread sheet I don't get the concept please help
posted on May 8, 2011 
Physics
rotor ride a cylinder of radius 3m is rotation at a linear speed of 15 m/s. What minimum coefficient of static friction is required to keep the participant from slipping?
posted on April 3, 2011 
Calculus
(ã2)x  2cosx
posted on July 1, 2010 
Industrial Revolution
pretend that another industrial revolution is waiting to happen right now in 2009 all we need is one good invention to get it underway. make up an invention in your head that you think would spark it. what would this invention be,how would it work, what is
posted on February 21, 2009 
word unscramble
bonspeq pleasee help me what i sthis word?
posted on November 1, 2008 
math
Hello can you help me in discounts prices
posted on May 29, 2008 
Continued physics problem from before (way down)
So when switch is closed, the inductor acts as a block (or open circuit in that branch)? And when it is opened after a long time, it acts as a bare wire?
posted on April 13, 2008 
Circuit Problem Physics
The questions is in the link I gave above. Here it is again (you have to delete the spaces in 'h t t p :'): h t t p ://img201.imageshack.us/my.php?image=circuit5ij7.png
posted on April 13, 2008 
social studies
Are the 5 themes of geography location, place, humanenvironmental interactions, movement, and regions? And in answer to each of the 9 questions you gave, do you want the actual answer to the question, or merely a statement of one of the above listed five
posted on April 13, 2008 
Short Circuit Problem (Physics)
ty so much dan!
posted on April 12, 2008 
Circuits Problem (Physics)
omg! thankss!!
posted on April 12, 2008 
Circuits Problem (Physics)
hi, i put spaces between the "h t t p :" because it wouldnt let me post it otherwise. if you delete the spaces it should load (i hope!).
posted on April 12, 2008