Thursday
December 8, 2016

Posts by Caitlin

Total # Posts: 285

Chemistry
The Lewis structure of O2
October 7, 2011

Chemistry
Explain why it is necessary to form a double bond in the Lewis structure.
October 7, 2011

Chemistry
Which of the subshells in the electron configuration of Hf behave as core orbitals Check all that apply 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d
October 4, 2011

Chemistry
What do we call the part of the universe that is not part of the system
October 4, 2011

Chemistry
What is the kinetic energy of the emitted electrons when cesium is exposed to UV rays of frequency 1.7×10^{15} Hz?
September 27, 2011

Physics
A horizontal spring attached to a wall has a force constant of 780 N/m. A block of mass 1.70 kg is attached to the spring and oscillates freely on a horizontal, frictionless surface as in the figure below. The initial goal of this problem is to find the velocity at the ...
September 27, 2011

Chemistry
In the recent Chem Activities, we have been learning about how Coulombic attractions and repulsions determine properties of atoms like ionization energy and atomic radius. We have made two assumptions not completely justified by the data we had up to this point: electrons are ...
September 26, 2011

Math
A ten-pin bowling ball has a volume of about 5274 cm3. A candlepin (8) bowling ball has a volume of about 48 in3. About how much greater is the volume of a ten-pin bowling ball than the volume of a candlepin bowling ball?
September 25, 2011

Math
Tonia deposited a total of $174.52 into her checking account. She also withdrew a total of $186.15. Use addition to find the net change in Tonia’s checking account.
September 25, 2011

Chemistry
What is the frequency of radiation that has a wavelength of 13 \mu m, about the size of a bacterium?
September 22, 2011

Chemistry
What is the frequency of radiation that has a wavelength of 13 \mu m, about the size of a bacterium?
September 22, 2011

geometry
AB=5x+2 AC=3x+17
September 20, 2011

Chemistry
Use Equation 7.1 and assuming that core electrons contribute 1.00 and valence electrons contribute nothing to the screening constant, S, calculate Zeff} for these two ions. Express your answers as integers. Enter your answers numerically separated by a comma. Zeff Cl-, Zeff K+
September 17, 2011

Math 10
A cylinder has a surface area of 250cm2. The height is twice as big as the radius. What is the height of the cylinder?
July 9, 2011

Science
thanks but that website was absolutely no help.
June 25, 2011

Science
Name the TWO variables in the following hypothesis... Homeless women are subjected to more spousal abuse than are housed women.
June 25, 2011

American History
This is what my teacher wrote up on the board today and i was needing some help with it i don't really understand it all... This is exactly what he wrote: In a page-long essay describe how we got Texas Include: Stephen Austin, Zachary Taylor, Manifest destiny, Santa Anna, ...
April 14, 2011

American History
This is what my teacher wrote up on the board today and i was needing some help with it i don't really understand it all... This is exactly what he wrote: In a page-long essay describe how we got Texas Include: Stephen Austin, Zachary Taylor, Manifest destiny, Santa Anna, ...
April 14, 2011

Statistical Psychology
A social psychologist was interested in how communication patterns can affect creative problem solving in small groups. seven groups of each of two types were formed: vertical and horizontal. In the vertical groups, participants were organized hierarchically, so that they ...
April 13, 2011

algebra
what is the formula to find the heigh of a trapazoid?
April 11, 2011

Math 7th
In order to be allowed to go on a does trip, 80% of the students in a class must pads a pop quiz. If there are 26 students in the class. Approximately how many must pass the quiz?
April 7, 2011

Math 7th
In order to be allowed to go on a does trip, 80% of the students in a class must pads a pop quiz. If there are 26 students in the class. Approximately how many must pass the quiz?
April 7, 2011

math
cesar bought 2 bags of flower that each weighed a kilogram and another bag that weighed 500 grams.how many grams of flower did he buy?
April 7, 2011

polygons
aerlintg
April 6, 2011

polygons
can you help me unscramble this word loav
April 6, 2011

musicbbnchkuytdbnt
dmygxi
April 6, 2011

Chemistry
sodium acetate
March 22, 2011

chemistry
300.0 g of ammonia react with 36.0 moles of sulfuric acid to produce ammonium sulfate. How many moles of excess sulfuric acid are left over after the reaction is complete?
March 16, 2011

mathematicas
how do i do my homework quickly like a ninja but thoroughly??
March 14, 2011

Physics
I just need ideas on how i can estimate the height of a building by using only a tennis ball and a stop watch. I can only measure it by being on the ground level.
February 27, 2011

Math
how would you answer this?
February 11, 2011

Math
Your friend is taking an algebra class that began after ours. Write your friend an email explaining a general strategy for factoring in a very organized way.
February 11, 2011

Earth and Physical Science
A 901 kg car is traveling north down a country road when a deer crosses in front of the car. By slamming on the breaks, the care is able to decelerate at 4.0 meters per second squared. What is the frictional force between the street and the car?
February 7, 2011

biology
how to identify leaves marple.lime,willow,hawthorn rose,rhododendron,birch ivy.oak.sycamore,horse chesnut,holly to make a branch key then turn it into paired statement key
February 7, 2011

Math
5-s(4-7)+3s 5-s(-3)+3s 5+3s+3s 5+6s
January 30, 2011

physics
A box sits at rest at the top of a ramp of length 1.79 m and elevation angle 38.0deg. The box accelerates down the ramp, and when it reaches the bottom its velocity is 4.05 m/s. What is the coefficient of friction μ on the ramp?
January 30, 2011

math
how do you get 24 by using numbers 1-12 by going up,down,and diagonal
January 27, 2011

Gym
how do you get 24 by using numbers 1-12 by going up,down,and diagonal and by using addition
January 27, 2011

CHEM 1LB
well C is the wrong answer. Another 3 points i have to make up on the piratical D:
January 21, 2011

CHEM 1LB
E is right
January 21, 2011

Chemistry
bdegjm is right
January 15, 2011

Reaction Descriptions
abd, bf, cf, cd, ae, ae is correct
January 12, 2011

Physics
Consider the diagram of the box and bucket. If the coefficient of static friction is 0.5 and the coefficient of kinetic friction is 0.3, find the maximum mass of the bucket in order for the system to be in static equilibrium. If the block was given a slight nudge to get it ...
January 1, 2011

Math
A tree casts a shadow 10 feet long. A 6-ft. man casts a shadow 4 ft. long. The triangle formed by the tree and its shadow is similar to the triangle formed by the man and his shadow. How tall is the tree?
December 2, 2010

Life Science
two organisms were found to have different genotypes but the same phenotype. Predict what these phenotypes might be? and Explain
November 17, 2010

Math
Marcia developed a roll of film and received 4-inch by 6-inch prints. She wants to have one picture enlarged to an 8-inch by 12-inch print. What kind of transformation is this? What is the scale factor?
November 3, 2010

Math
o, duh.. thanks you both of you
November 3, 2010

Math
Express 3/11 as a decimal number. do u go 3 divide by 11 or 11 divide by 3 ?? so it would be 0.27 repeated or 3.6 repeated ??
November 3, 2010

math
1-1-7-7 2-2-6-6 3-3-5-5 4-4-4-4 still think also hope it helps
November 3, 2010

Math
thank you Ms. Sue
November 3, 2010

Math
Please help me solve this.. It costs $10 plus $8 per hour to rent a canoe. Brandon and Erin have $50. Solve the following equation to find how many hours they can rent a canoe. 8h +10 = 50
November 3, 2010

math
there will be 16 bacteria. you take 2 time 4 to find out how many bacteria in one then 2 times 4 is 8 so 8 times 2.. equals 16
November 3, 2010

5th grade
Math. How can I make up a data set of at least 12 numbers that have the following landmarks, maximum 18: mode: 7, range: 13, median: 12?
October 14, 2010

college physics
Consider two vectors A = 4i - 4j and B = -i - 8j . (a) Calculate A + B. (b) Calculate A - B. (c) Calculate absolute value(A + B). (d) Calculate absolute value(A - B). (e) What is the direction of A + B? (from the +x axis) (f) What is the direction of A - B? (from the +x axis)
September 28, 2010

college physics
A man pushing a mop across a floor causes it to undergo two displacements. The first has a magnitude of 140 cm and makes an angle of 130° with the positive x axis. The resultant displacement has a magnitude of 144 cm and is directed at an angle of 30.0° to the positive...
September 28, 2010

college physics question corrected
Given the vectors A = 2.00i + 8.00j and B = 4.00i - 5.00j, do the following. (a) Draw the vector sum C= A+ B and the vector difference D= A- B. (b) Calculate C and D, first in terms of unit vectors. Calculate C and D in terms of polar coordinates, with angles measured with ...
September 28, 2010

college physics
Given the vectors = 2.00 + 8.00 and = 4.00 - 5.00, do the following. (a) Draw the vector sum = + and the vector difference = - . (Do this on paper. Your instructor may ask you to turn the paper in.) (b) Calculate and , first in terms of unit vectors. Calculate and in terms of ...
September 28, 2010

ela
Thank you Bobpursley from Caitlin
September 26, 2010

ela
Below the main level, we have a large playroom. What part of speech is below?
September 26, 2010

physics
A car starts from rest and travels for 5.0 seconds with a uniform acceleration of +1.5 m/s^2. The driver then applies the brakes, causing a uniform acceleration of -2.0 m/s^2. If the brakes are applied for 3.0 seconds, how fast is the car going at the end of the braking period...
September 19, 2010

Government
I need helo understanding what will likley pass a bill and what wont likley make a bill pass
July 12, 2010

math
40,300 , thank you(:
June 15, 2010

math
About 310 000 t of Alantic cod were caught in 1991. In 2001, the mass of cod caught was 87 percent less. How much cod was caught in 2001 ? and how do you find the answer?
June 15, 2010

MATH-HELP ASAP
thank you !!
June 15, 2010

MATH-HELP ASAP
Joline collects hockey cards. She needs 5 cards to complete a set. This is 20 percent of the set. How many cards are in the set? and how do you figure this out ? please help:(
June 15, 2010

physics
how do I calculate mass of one object in an elastic collision? I have the equation m1v1 initial + m2v2 initial = m1v1 final + m2v2 final How do I rearrange this to solve for m2?
June 15, 2010

Biology 11 U
In the U.S. 1 out of 10 000 babies is born with phenylketonuria (PKU). The disease is caused by a recessive allele. The frequency of individuals in the U.S. population born with PKU corresponds to q squared. What is the given information? (e.g. p squared = 99999/10000)
June 9, 2010

Religion
How does Jesus' ministry reflect a particular emphasis on the Temple in Jerusalem as the center of Jesus' life? (in the Gospel of Luke)
May 22, 2010

history- HELP!
there are ten provinces in canada but on seven in 1873. wHICH PROVINCED DID NOT EXIST IN 1873?
May 9, 2010

Math
becca repost it, nobody will answer
April 19, 2010

chemistry
to clean a clogged drain, 26 g of sodium hydroxide is added to water to make 150 ml of solution what are the pH and pOH values for the solution?
April 18, 2010

math
How do I do 5 1/3 * 3/8
April 3, 2010

Maths
Solve step by step 4sin^2x = 3cos^2x
March 1, 2010

Math
I think the expression is 2x + 3y and it would equal 27.54 if x = 0.59, y = 8
February 24, 2010

math
thank you soo muchh! (:
January 31, 2010

math
explain what each equation represents. 1) 5e+1=15
January 31, 2010

Religion
Thank you so much!
January 18, 2010

Religion
What is the influence of Gnosticism in the text John 1:1-1:18?
January 18, 2010

Religion
Okay,thank you very much!
January 18, 2010

Religion
actually John 1:1-1:18, sorry I forgot to put that. And for the question, i meant "where is it making...: not "what..." sorry
January 18, 2010

Religion
What bold statement does the gospel of John say that the other gospels don't?
January 18, 2010

chem1lbuci
I got nf=1, lyman. But the problem is unlimited, so it doesn't matter with all of the bs answers here anyways.
January 15, 2010

4th grade math
I don't know how to go about solving this problem: There were 93 students going to camp. After equal groups of fewer than 10 students were formed for hiking. 2 students were left over . How many equal groups were formed? Thanks!
January 7, 2010

tests
thank you!
December 20, 2009

tests
I need help narrowing down answers in regents style exams. can you help me?
December 20, 2009

biology
Yes, i also ment for example, if there was a,b,c,d, i narrowed it down to a and c. thanks. And may i please have the regents links? thank you so much!
December 20, 2009

biology
What is the best way to narrow down questions in a regents style exam? I can't seem to figure it out and need some help. Thank you.
December 20, 2009

math
Plz tell me the answer i have been doing this for hours
December 11, 2009

Chemistry
Formic acid, HCO2H, is a weak acid. Write a net ionic equation for the reaction of formic acid and aqueous potassium hydroxide.
October 14, 2009

Math-Algebra
I am a tutor for a student working on the same thing so I somewhat know this material. (the book is Introductory and Intermediate Algebra for College Students, by the way) Unfortunately I don't have the book, so I am using my general knowledge and the girl I tutor sent me ...
October 14, 2009

Math
5my square
October 9, 2009

math
The answer is- you mom! OOOOOOHHHHH!!!!
September 22, 2009

biology
What is the heterotrophic hypothesis and how can I explain it from both a biological and conceptual framework?
September 2, 2009

language arts
slebsurs prustos
May 29, 2009

Calculus
Here is my problem that I am trying to work on: A rock is dropped from the top of a 300-ft cliff. It's velocity at time t seconds is v(t0= -32 t feet per second. a.) Find the height of the rock above the ground at time t. b.) How long will the rock take to reach the ground...
May 11, 2009

Calculus
well i have this homework question that says: A rock is dropped from the top of a 300-ft cliff. It's velocity at time t seconds is v(t0= -32 t feet per second. a.) Find the height of the rock above the ground at time t. b.) How long will the rock take to reach the ground? ...
May 11, 2009

Calculus
well i have this homework question that says: A rock is dropped from the top of a 300-ft cliff. It's velocity at time t seconds is v(t0= -32 t feet per second. a.) Find the height of the rock above the ground at time t. b.) How long will the rock take to reach the ground? ...
May 10, 2009

Calculus
How to integrate with position, velocity and accelleration
May 10, 2009

4th grade math
133devided by14
February 26, 2009

chem
when i did the quadratic equation, i ended up with a negitive number under the radical. and you cant slove from then?
February 15, 2009

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