Friday
November 28, 2014

Posts by Kristine


Total # Posts: 55

physics
A bowling ball of mass 9 kg hits a wall going 11 m/s and rebounds at a speed of 8 m/s. What was the impulse applied to the bowling ball?
November 21, 2014

Chemistry
How would the dx2−y2 orbital in the n=5 shell compare to the dx2−y2 orbital in the n=3 subshell? True or False 1.The contour of the orbital would extend further out along the x and y axes. 2. The value of ℓ would increase by 2. 3.The radial probability ...
April 24, 2014

Math 110
I got 56 points passing is 75 3 more exams to go . How much i need to get in every exam to pass?
March 5, 2014

chem
A sample of gas has an initial volume of 32.6L at a pressure of 1.2atm.If the sample is compressed to a volume of 13.4L , what will its pressure be? (Assume constant temperature.)
October 7, 2013

Chemistry (balancing eq)
They called it hydrone in the question and said it was an alloy of Na and Pb
October 1, 2013

Chemistry (balancing eq)
I need to write a formula where PbNa reacts with water. 2PbNa + 2 H20 = 2 NaOh + H2 +Pb It says in the question that lead doesn't react with water, but Na does. Did I write the formula correctly?
October 1, 2013

Chemistry
The question asks me to find the absolute error using the true value=.1025M, and the mean=.1077 The answer I got was .0052...how would I convert this to 4 significant figures? (since the values have 4 significant figures)
September 28, 2013

algebra
Thanks Reiny, I appreciate the steps. :)
March 26, 2013

algebra
Please Helpppp!!! Mother having a hard time with radicals. A playground is shaped like a rectangle with a width 5 times its length (l). What is a simplified expression for the distance between opposite corners of the playground? Please can you post step-by-step so I understand...
March 26, 2013

algebra
Sorry it is 1,5
March 22, 2013

algebra
Nope no typo on the third it is 20. Thanks Bob
March 22, 2013

algebra
I have a couple questions I need help on. Which model is most appropriate for the data set? (-1,20),(0,10),(1,5),(2,20) And How many real-number solutions does the equation have? -8x^2-8x-2=0 Thanks for the help
March 22, 2013

Algebra
A fraction reduces to 36. If its numerator is 6x^5, what is its denominator? I need steps, I am a mom who is out of her league
January 29, 2013

Math PLEASE HELP!!!
Dilate by four means that it is enlarged by a factor of 4. 4 x (2,2) would give you (8,8)
January 9, 2013

Math
Three versions of a test are distributed evenly among 15 students. How many ways can the tests be distributed?
January 9, 2013

math
Just multiply the top across and the bottom across. You should get 6/14.
January 9, 2013

Algebra
x=4
January 9, 2013

Math
The probability of rain falling on the roof of Adam’s dorm on any given day is 0.15. The probability of rain falling on the lecture hall is 0.20. On days when rain strikes the dorm roof, it has a 0.90 probability of also striking the lecture hall roof. On a day when rain ...
January 8, 2013

algebra
what should be the equation of the line in standard form that passes through (4,6) and is parallel to the line where equation is y=2/3x +5?
November 27, 2012

algebra
Which equation is the equation of a line that passes through (-10,3) and is perpendicular to y=5x-7?
November 23, 2012

Math
2x-1/3 +3 <or= -4 And 8x+2/2 -1>or=6
October 22, 2012

chemistry
What is the [SO42-] in 0.45 M of H2SO4?
October 11, 2012

Chemistry
A flask has 1.00 L of O2 (g) at STP (the amount of gas and volume are held constant, P=1 bar) and the second has 1.00 L of O2 at 100 C. What mass of O2 must release if we get the pressure to remain at 1.00 bar when it's heated to 100 C? Can someone please explain how to do...
October 3, 2012

HUMAN RELATIONS, PART 1
The main reason self-confidence is important in human relations is because
September 26, 2012

ENGLISH
newspaper reporter
August 9, 2012

Chem
How many moles of hydrogen atoms are present in 2.31x10^24 molecules of CH4?
July 17, 2012

Chem
How many moles of hydrogen atoms are present in 2.41x10^24 molecules of CH4?
July 16, 2012

CHEMISTRY
WHAT IS THE NAME OF THIS COMPOUND? 1. K2SO4? 2. Ca3(PO4)2 3. LiI 4. KMnO4 5. NaNO2 6. SnCl2 7. Fe(OH)3 8. NaClO 9. BaSO3 10. Pb(NO3)2 11. Hg2Cl2 12. (NH4)2CO3 13. MgO 14. CuBr 15. Fe2s3 pls do help me.. tnx:)
July 15, 2012

science
Is 2-methyl-2-choloropropane polar or nonpolar?
June 10, 2012

POS110
What are the implications for judicial review on American democracy? Should any branch of government be able to review the actions and legislation of the others? Is this good for democracy or does it concentrate too much power in one branch?
February 2, 2012

Calculus 1
Francis starts walking north at 4 ft/s from an intersection I. At the same time Aram starts walking south at a rate of 5 ft/s from a intersection 1500 ft due east of I. At what rate are they moving apart 15 minutes later? (Rounding to 1 decimal place is fine.)
December 7, 2011

math
The frist day I did not know but now I know
September 20, 2011

English
In what situations would someone be reserved when introducing a person?
September 11, 2011

Math
the ratio of men to women who try to run them over is 18 to 26. how many out of 88 people who try to run them over are men?
March 7, 2011

statistics
What level of measurment would i use for ages of the members of congress
January 5, 2011

Science
Who should share the mineral profits from the Pacific Ocean? From The Alantic Ocean?
May 3, 2010

Global Studies
It is easiest to include it in the paragraph. For example: As seen in Document 1...OR As seen in the photograph b of document 3....OR As Stated in document 5....This is a very easy way to reference the document and easy for the teacher to grade the paper since it is clear you ...
March 6, 2010

Electronics
HElp me find Vo using Thevenin's Theorem... heres the diagram: flickr . com / photos / huck4477/ 4193362834
December 17, 2009

math
July 2004 the population of the United States was 293,027,571. if more than half of these people live within 80 kilometers of an ocean, about how many people live within that distance
April 2, 2009

english
I know my question is long, but I really have thought through this for the past hour and I can't decide between the two choices for the 2 questions
March 24, 2009

english
I am trying to analyze the following article. I understand its meaning and the majority of the quesitons, but this one question is stumping me. The author uses Nows and Laters as nouns. How are they described? -by sense of action or by sense of infinite I know the other ...
March 24, 2009

English
Will it be possible to describe what is happening in this article? what is its purpose? is it to get readers to be critics or is it a deeper purpose If possible, please summarize Criticism is a study by which men grow important and formidable at a very small expence. The power...
March 24, 2009

Axia College
need help on final grammar quiz in Com 215
February 26, 2009

chemistry
-You have a sample of unkonw metal that you have heated to 100 deg Celsius (oC) in boilin water. If, unknown to you, the metal sample cools somewhat before being added to your calorimeter, what will be the effect on the delta T for the water in your calorimeter (assume you ...
January 29, 2009

english
"God thought and thought" ..what is the sound device used?
January 4, 2009

HUMAN RELATIONS, PART 1
The main reason self-confidence is important in human relations is because A. self-confidence makes you seem more interesting to other people. B. self-confidence makes you appear important in the eyes of other people. C. forming relationships involves risk. D. the alternative ...
December 9, 2008

HUMAN RELATIONS, PART 1
A. self-confidence makes you seem more interesting to other people. B. self-confidence makes you appear important in the eyes of other people. C. forming relationships involves risk. D. the alternative to self-confidence is no confidence.
December 9, 2008

9th grade
A biologist gives a new kind of food to a group of dogs and compares the weight gain of these dogs over time to a group of similar dogs that did not recieve the new food. Identify the experimental variables and dependent variables
September 7, 2008

science
What is the structure and function of a orangtaun?
September 4, 2008

College Algebra
Do variables with exponents in algebraic terms need to be alphabetical?
September 2, 2008

chemistry
Why is the standard reduction potential E, for the standard hydrogen electrode 0.00V? Please help me explain the reason why to this problem
May 22, 2008

math!
WHAT IS THE ANSWER TO A LINE THROUGH (-1,1) AND (2,3) please help! C:
February 5, 2008

Math
Can someone explain relating metric units. going form liters to milliliter and kilograms to grams?
September 6, 2007

algebra
I need help.. If the train contained 42 gallons of ice cream at the tempurature of thrity two degrees and the train ran at 12 miles per hour and the train starts from Los Angeles an was making a stop at Phillipines. If the country of Phillipines demand the ice cream came at 12...
April 3, 2007

ETH215
Funny that i found this site, to know thatI am not alone! :)
July 20, 2006

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