Questions Asked on
December 6, 2007

math
if 12 counters are 3/4 of a set, what is the whole set of counters?
asked by milan 
Physics
A rifle is fired in a valley with parallel vertical walls. The echo from one wall is heard 1.0s after the rifle was fired. The echo from the other wall is heard 1.0s after the first echo. How wide is the valley?
asked by Einstein 
Physics
This is how the problem starts out: A meter stick is placed with the fulcrum at the 50cm mark. If a 120g mass is placed at the 25cm mark and a 25g mass at the 10cm mark, where should a 500g mass be placed to balance the system? I thought that since
asked by Emily 
chemistry
What is dipole moment of BeCl2? and hybidization?
asked by Vic 
chemistry
are there 0 pi bonds and 5 sigma bonds in the PCl5?
asked by km 
Math
There is one bus with seven girls on it. Each girl has seven backpacks with seven lions in each backpack. Each big lion has seven little lions. How many legs are there all together?
asked by Ashley 
chem
calculate the max wavelength of light capable of removing an electron for a hydrogen atom from the energy state characterized by the following : n=2 in nm n=4 in nm
asked by mel 
chem
calculate the change in energy expected for each of the following processes 1. Rb(g) + Br(g) > Rb+ (g) + Br (g) 2. Mg(g) + I(g) > Mg+ (g) + I (g) 3. Mg+ (g) + I(g) > Mg+2 (g) + I (g) 4. Mg(g) + 2I (g) > Mg+2 (g) + 2I (g) in kJ
asked by mel 
Chemistry
Do PCl5 have 3 lone pairs for each Cl? and 1 lone pair for P ??
asked by Km 
math
The capacity of an elevator is either 15 children or 11 adults. If 8 children are currently in the elevator, how many adults can still get in?
asked by math 
Precalc
Find the exact solutions to each equation for the interval [0,360) 2cosxsecx = 1
asked by Sean 
physics
A car is traveling 20m/s when the driver sees a child standing in the road. He takes 0.8s to react, then steps on the brakes and slows at 7.0m/s^2. How far does the car go before it stops? i don't know where to start.
asked by Anonymous 
Math  Statistics
Suppose that the mean number of customers who arrive at the checkout counters each minute is 4. Create a Poisson Distribution with u (lamda) = 4 for x = 0 to 20. Compare your results to the histogram. 20 random numbers are generated with a Poisson
asked by J 
Math / Algebra Word Problem
The Parkhursts used 160 yd of fencing to enclose a rectangular corral and to divide it into two parts by a fence parrallel to one of the shorter sides. Find the dimensions of the corral if its area is 1000 yd^2 Thank you!
asked by Ray 
physics
A rock is dropped into a well. Five Seconds later a splash is heard. Calculate the depth of the well(assume the time for sound of the splash to reach you is too small to consider.) how can i calculate the depth of the well if the only thing that's given is
asked by Anonymous 
Chemistry  please help
1. Write the balanced chemical equation for the single displacement reaction of magnesium and sodium thiosulfate. Is this right? 6Mg + (S*2*O*3)*2 > 6MgO + 2S*2 2. Write the balanced chemical equation for the double displacement reaction of hydrogen
asked by kim 
Physics
A youngster shoots a bottle cap up a 15.0° inclined board at 1.92 m/s. The cap slides in a straight line, slowing to 0.95 m/s after traveling some distance. If the coefficient of kinetic friction is 0.35, find that distance. So I get that (1/2)MV^2 =
asked by Lindsay 
Physics
Carol drops a stone into a mine shaft 12.6 m deep. How soon after she drops the stone does she hear it hit the bottom of the shaft?
asked by Einstein 
algebra
Pick a country of your choice that is experiencing population growth. Using the Library, web resources, and/or other materials to find the most recent population count of the country you have chosen and the population growth rate of that country. Use that
asked by lee 
Math
this question does not make sense to me. Add the proper constant to the binomial so that the resulting trinomial is a perfect square trinomial. then factor the trinomail. X^2+21x+__ What is the constant term? What is the factored for of the trinomial? i
asked by Nick 
chemistry
for this reaction: 2NO + heat N2 +O2 which way would the equillibrium shift if catalyst is added?
asked by madi 
Physics
One closed pipe organ has a length of 2.5 m. The frequency of the note is 34.3 Hz. When a second pipe is played at the same time, a 1.7 Hz beat note is heard. By how much is the second pipe too long? Would you have to use the frequency of the second pipe
asked by Einstein 
math
michelle went on a 24mile bike ride by lunchtime, they had ridden 5/8 of the total distance.How many miles did they have left to ride after lunch.
asked by milan 
English hard crossward
ok my teacher gave us a crossword puzzle to do she said i was so hard that we can ask anyone for help and use the internet to look up the answers if you want to help please reply.
asked by Mike 
Math
If 50 counters are the whole set, what fraction of the set is 45 counters?
asked by Jessica 
English
Provide synonyms of "low achievers."
asked by Anonymous 
Chemistry
molecular equation for BaBr2 (aq) + PB(NO3)2 (aq) > Ba(No3) + Pb(Br2) is that right or is it Ba(No3)2
asked by Savy 
criminal justice 255
Describe and apply six law enforcement strategies from Chapter 6 of Defending the Homeland. For each: Label the strategy as proactive, reactive, or both. Describe the strategy: What is it, and what is required to execute the strategy? List the top
asked by RAINY 
Soc. Studies
how did the early civilizations start?
asked by Vasu 
Psychology
What are the major criticisms of Freud's theory of personality by Alfred Adler and Carl Jung?
asked by Christian 
Uniform Motion
Doing homework and came across this problem that has me totally stumped... On Monday, Voltaire drove to town at 60 miles per hour. On Tuesday, he drove to town at 40 miles per hour. If the total traveling time for both trips was 15 hours, how far was it to
asked by Ashley 
brain
In "split brain" experiments, the main commissure connecting the cerebral hemispheres is cut. Name this commissure?
asked by Twigs 
Hearing Loss/Causes
I need websites on these Questions: How does a buildup of earwax cause someone to have a hearing loss? What happens when there is hearing loss in the inner ear? What are some reasons that a person may have a hearing loss in the outer or middle ear? What is
asked by Mack 
Math
Where do I start for this question. What is the most amount of moneyall coins but no dollar coinsthat you could have in your pocket and still not be able to give exact change for a dollar, a half dollar, a quarter, a dime or a nickel?
asked by Tyler 
algebra
How do I do this? What is the probability of rolling a die twice and rolling a 6 the first time and an even number the second time? Is it 1/12, 4/32, 5/32, or Not Given?
asked by Tabby 
HUM 130
I need information on History of key sacred texts in judaism? I can not find any and I know it is out there somewhere.
asked by dawn 
AP biology
I posted this question three days ago but no one answered. Hi you guys I am having trouble with the "cell communication" chapter so I would really appreaciate if someone could help out with this question "What could happen to the target cells in an animal
asked by Claudia 
science
What kind of streams form vshaped valleys? Streams that are first forming,streams that move slowly, streams that have meanders?
asked by jeremy 
social studies
can u please help me unscramble the word radmordey?
asked by emily 
Maps
Where is the artic region?
asked by Like you'd want to know! 
math
What is one way to find a missing side length in a pair of similar figures?
asked by blah 
Chemistry
I do not understand sp,sp2,sp3 hybridization. How do they form from the valence orbitals?
asked by Lu 
Geology
What type of waves are Earthquakes?
asked by Gary 
chem
answer the following questions assuming that m (subscript s) could have three values rather than two and the rules for n, l and m (subscript l) are the normal ones. 1. how many electrons would an orbital be able to hold? 2. how many elements would the
asked by mel 
Math
step 1: x = integral(from 0 to v) dv/(z^2v^2) step 2: x = 1/2z ln((q+v)/(qv)) How do you get from step 1 to step 2 ?
asked by Anthony 
algebra
How do I do this? What is the probability of rolling a die twice and rolling a 6 the first time and an even number the second time? Is it 1/12, 4/32, 5/32, or Not Given?
asked by Tabby 
economics
Why would assigning property rights be a solution to pollution caused by burning coal?
asked by autumn 
math
I sold a book on the Internet for $6.00. I could have sold it at my garage sale for $1.00. I made $5 more on the Internet. What is the profit as a percentage? What is the formula for figuring that per centage?
asked by Beni 
algebra
How do I find the measurement of an angle of a triangle if I know what the other two angles are. For example, I know the first is 90 degress, the second angle is 30 degress, but I need to know what the third angle is.
asked by Tabby 
Math
I'm trying to enter this so it shows up to what I need, but I need to know how to solve for the missing Letters: ABCD X 4  DCBA It reads ABCD times 4 and the 4 is under the D.
asked by Tyler 
math
Please explain how to do this problem: 5(93)+5x46=
asked by Ashley 
algebra
How do I do this? You are building a corner cabinet, the walls intersect at a right angle. What is the perimeter of the cabinet if the height is 30 inches, the hypotneuse is 42 inches, and the base is unknown?
asked by Tabby 
Algebra
If x1 and y1 is (2,2) and x2 and y2 is(3,2) what is the y intercept form? I'm confused on how to work the problem out step by step
asked by Brooke 
Spanish 2
How do i say fork, knife, and spoon in spanish.
asked by Brooke 
Grammar
Is this an example of a participial phrase? The man in the suit was her former fiance.
asked by Kimmy 
SCIENCE
1) How many major bones of the axial skeleton are there? I think 80 2) What are the accessory bones of the skull? I don't know
asked by 565 
CPA
How long does it take to become a CPA and what are the procedures? thank you.
asked by Khan 
chemistry
which of the following will result in a chemical change?
asked by kanisha 
Algabra!!!
ok i asked 4 help earlear ang got it but now im stuck again (2,5) M=1/2 the book says to "write an equation of the line that passws through the point and has the given slope. write the equation in slopeintercept form." but how do i do this with a fraction
asked by Mike 
spanish
How did the geography influence the immigration for the exploration in Colombia and Venezuela? How did the indegenous mix with the Europeans to develop the culture in Colombia and Venezuela? I've tried many websites such as fact monster, wikipedia,
asked by astrid 
math, I think I have it now...
Is this the correct way to solve this? 5+3x42= 3x4=12 +5= 17 2+15 is the answer 15?????
asked by Ashley 
HUM 130
i need help finding this info. please Hinduism Buddhism Confucianism Daoism I need this on all of these: Historical figures and events Central beliefs Nature of God Texts Ritual and practice (sacred elements & their meaning) Ethics and morality I need help
asked by dawn 
Math
Sam needs to feed 10 dogs at the animal shelter. The dog food is sold in 5 pounds. How many bags of dog food will he need to feed the dog for an entire week? Estimate your answer.(first estimate then multiply)
asked by Wali 
English
I am in USA for last 14 years almost but still have an accent. I tried hard to get rid of my accent and speek as good as one american born could, but I could do it. Can anyone recommend me anything helpful to correct my accent?
asked by Eric 
Chemistry
Is it possible for an electron to have n=2 l=1 m=2? EXPLAIN PLEASE
asked by Km 
Science
Why is passive soalr heating referred to as passive?
asked by Robin 
Physics
What two ways can waves interact? ^I have no clue what its asking
asked by Matt 
spanish!!...urgent!...please help
how did the geography influence the migration and exploration of colombia? venezuela? i need websitres for this urgent...please help asap... :(
asked by maggie 
Health
I have to do a 1 page essay on "Protecting yourself in Public". Now, our teacher just gives us work, she doesn't lecture us. Also I think it is due tomorrow (at least that's what my friend told me), and she assigned it today. So I tried looking on Google
asked by Wenmar 
chem help please
K= 6.9x10^10 which way does this dominate to right or left? for equilibrium constant? this is a hw problem i just don't understand
asked by alicia 
history
During the middle ages what were the roles of the Crusades on the power of the Church, the knights and how they strongarmed their role into power for the church.
asked by jenn 
Science
Hey....I need help with my homework. I'm in 9th grade, high school. Its pyhsical science about Atomic Math.. Heres the question: Multiply the atomic number of hydrogen by the number of electrons in mercury, which has an atomic number of 80.
asked by Sammi 
chemistry
what is a pi bond?
asked by Lu 
math
a light house has an angle of depression from the top of 34 degrees and is 30 meters tall. how far from the base of lighthouse is the boat?
asked by carol 
math
don't understand help please When one half of the second of two consecutive integers is subtracted from the first of the two consecutive integers, the result is 2.
asked by keauanna 
espanol
is this sentencecorrect? Mi tio tiene dos hijos.
asked by Anonymous 
Math
A tree casts a shadow that measures 5m. At the same time, a meter stick casts a shadow that is o.4m long. How tall is the tree?
asked by Patricia 
chemistry
How to get the hybridization of N IN NO2 ?
asked by Vic 
linguistics
how do you pronounce these: ferdinand de Saussure???
asked by stunning gurl 
math
If two triangles are similar, what can you say about the ratios of the two side lengths within one triangle and the ratios of the corresponding side lengths in the other triangle?
asked by bbb 
chem
what is the energy of a mole of UV photons having a wavelength of 13nm?
asked by mel 
Biology
How many possible gametes would an individual produce in this trihybrid cross? Their genotype is AaBbDd,also what would all gamete possible combinations be?
asked by Beverly 
chem
K= 6.9x10^10 which way does this dominate to right or left? for equilibrium constant? this is a hw problem i just don't understand
asked by alicia 
vocab
i need the verb form of eulogy aversion and officious
asked by jiee 
Math, again
Please explain how to do this problem: 5 + 3 x 2 + (4+2)= I did 5+3=8 x2+ 16 +6=22 did I do this correctly? Thank you...
asked by Ashley 
Hearing Loss/Causes
What sends the signals to your brain, allowing you to distinguish one sound from another?
asked by Mack 
educational technology
what are the biological aspects of learning???
asked by klar maesen 
homework
i can't find one of my previous questions!?
asked by Stacy 
Algebra 1
ok i have a problam i cant figure out how to do thie problam (1,3),M= 4
asked by Moke 
please revsise english paper
Owning a home is an integral part of the American dream. But this year alone thousands of homeowners across the country face foreclosures. It is inevitable to see the high rise of home mortgage foreclosures nationwide. A record number of homeowners are now
asked by christi 
Math
Hi again... 5(93)+5x46= 5x6=30 +5=35x4=1406=134 is this how it is supposed to be done??? Is this the correct method? Did I get the correct answer?
asked by Ashley 
Hearing Loss/Causes
Is damage to your inner ear reversible?
asked by Mack 
miss wezey
i have the same crossword puzzle do anyone know what Poet Van Duyn is it is 4 letters across ends with an a
asked by Anonymous 
english quick question
I see your point and I agree _______ your proposal. i answered with study guide says to WHY?????
asked by sam 
math
x+2y=3 2x+3y=7
asked by johnny 
analogies
________ is to animal as giant sequoia is to tree
asked by Nonomous 
educational technology
what is the role of the brain in learning??? please answer...thanks a lot...
asked by klar maesen 
crossword puzzle
13 leaters cause to be happy
asked by Mike 
math
the answer for 5+(64)+6x2(42)=
asked by Ashley