Questions Asked on
December 16, 2008

Physics  Buoyant Force
A piece of metal weighs 50.0 N in air, 36.0 N in water, an 41.0 N in an unknown liquid. Find the density of the unknown liquid.
asked by Phillip 
Chemistry
BrO3 + 5Br + 6H+ 3Br2 + 3H2O If 25.0 ml of 0.200molar BrO3 is mixed with 30.0 ml of 0.45molar Br solution that contains a large excess of H+, what is the amount of Br2 formed, according to the above equation? The answer is 0.00810 moles but I don't
asked by Andrew 
math
what is 22 2/9% as a fraction?
asked by Mike 
physics
The mean distance of the planet Neptune from the Sun is 30.05 times the mean distance of Earth from the Sun. a.) Determine how many Earthyears it takes Neptune to orbit the Sun. b.) The mass of the Sun is 1.99 x 10^30 kg, and the closest distance of
asked by Michelle 
algebra with pizzazz
What is it called when a sea bird lands on a channel marker?
asked by laura 
physics
Assuming Earth behaves as a perfect sphere with a radius of 6380 km, the standard gravitational acceleration,g, at sea level has a value of 9.80 m/s^2. a.) As Earth rotates on its axis, objects at the equator experience a slightly different value of g due
asked by Michelle 
Calculus
Find two numbers whose sum is 10 for which the sum of their squares is a minimum.
asked by bobby 
english
htt p: //w ww. collegeboard. com/prod_downloads/ap/students/ english/eng_lang_frq_01. pdf what is an example of alliteration on the third page of this document for the poem about the owls?
asked by chris 
Chemistry
We did a flame testing lab today with the following metal ions: Sodium, Na^+1 Barium, Ba ^2+ Calcium, Ca ^2+ Copper, Cu ^2+ Potassium, K ^+1 Strontium, Sr ^2+ Lithium, Li ^+1 The question asks to explain the effect of the nitrate ion solution on the color
asked by Ellen 
US History
Evaluate the extent to which the Articles of Confederation were effective in solving the problems that confronted the new nation. After the revolution, this gave the states freedom and independence. There was a comitee of delegates of representatives from
asked by mw 
physics
The moon is receding from the Earth by approximately 3.8 cm per year. Earth's mass is 5.98 x 10^24 kg, and its radius is 6.38 x 10^6 m. The Moon's mass is 7.3 x 10^22 kg, its radius is 1.79 x 10^6 m, and its orbital period around Earth is 27.3 days. The
asked by Michelle 
science
is chloringe flammable is chlorine flammable with a metal?
asked by science 
physics
Astonomers discover a new planet orbiting a fixed point in space, but for reasons unknown, they can't directly observe a star where one is expected. The radius of the orbit is measured to be 1.85 x 10^8 km, and the lone planet completes an orbit once every
asked by Michelle 
Chemistry
A sample consisting of 22.7 g of a nongaseous, unstable compound X is placed inside a metal cylinder with a radius of 8.00 cm, and a piston is carefully placed on the surface of the compound so that, for all practicla purposes, the distance between the
asked by Anonymous 
math
need help in 1996, the civilian labor force of the united states included 127 million people, and 5% were unemployed. how many people in the cilvilian labor force were unemployed?
asked by laura 
macroeconomics
1 The most important reason for the slope of the aggregate demand curve is that as the price level _______. 1) increases, interest rates decrease, and investment increases 2) decreases, interest rates decrease, and investment decreases 3) increases,
asked by youngcity 
physics
The floor of a railroad flatcar is loaded with loose crates having a coefficient of static friction of 0.20 with the floor. If the train is initially moving at a speed of 47 km/h, in how short a distance can the train be stopped at constant acceleration
asked by help 
math work did i do right
Interpreting Graphs and Intercepts Introduction: Graphs are created so that we can quickly derive meaningful information from them. They provide a visual representation of the data and, therefore, an understanding of the scenario. Interpreting graphs,
asked by sherri 
Chemistry Please help me
A sample consisting of 22.7 g of a nongaseous, unstable compound X is placed inside a metal cylinder with a radius of 8.00 cm, and a piston is carefully placed on the surface of the compound so that, for all practicla purposes, the distance between the
asked by Lauren 
physics
A train moving at a constant speed of 68.0 km/h moves east for 33.0 min, then in a direction 40.0° east of due north for 30.0 min, and then west for 59.0 min. What is the average velocity of the train during this run? Magnitude km/h
asked by help 
art
Okay i have this art class that i love but im always having trouble making myself love my drawing and everyone says their always amazing so how do i get myself to love my mom art again?
asked by symphany 
science
I need help to find the answer to this problem: The formula for aluminum sulfate is Al2(SO4)3. Figure the molar mass of aluminum sulfate to the nearest gram?
asked by wizzkid01 
5th grade  Math
If the retail tax rate is 5 cents for every 1 dollar you spend, how much tax would you pay for a $0.15 item?
asked by RJ 
Scince
The Big Idea of Energy sulphur and iron fillings
asked by Yoyoyo 
Functions
Find the sum of the 50 greatest negative integers. I'm supposed to find a, d, and t(at)n, but I'm not sure which is which. I think it makes sense for n to equal 50, but apart from that, I don't know what else to do. I would really appreciate some sort of
asked by Lana 
MATH PLEASEEEEE
I have a question, if f(x)=x/2 and g(x)=3x+1 find: a) (f+g)(x) i know you go x/2+3x+1. but how do i solve that?? b) (fg)(x) i know you go x/23x+1, how do i solve? c)(f*g)(x) how do i solve? (f/g)(x) how do i solve?? f(g(x)) how do i solve?? thanks for
asked by Jamie Lynn 
psychology
Sara sets up an experiment with a control group and a experimental group to study how reading to preschool children may improve their firstgrade reading achievement scores. In her study, the independent variable will be A firstgrade reading achievement
asked by ourania 
math
There is a square whose vertices lie on a unit circle. Point P lies on the terminal arm of an angle in standard position, P(0.3420, 0.9397) how do you find the degrees of P?
asked by s 
Algebra
Another question: A cell phone company charges $60 for a cell phone and $40 per month under its economy plan. Formulate and graph a model that can be used to determine the total cost, C(t), of operating a cell phone for t months. Find the total cost for 5
asked by Celina 
math
how do i find the domain and range of equations? example: f(x)=ab.solute value of x3. f(x)=square root 36x^2 g(x)=2x+2. do i find the range by pluggin in y for the x and then solving. for example: x=2y+2, and then i get y=x2/2. and then is that how i
asked by Jamie Lynn 
cjs200
Private security has become an important aspect in protecting businesses and properties. where do you see examples of private security? 2. how effective do you feel the private security industry is in preventing crime and protecting communities?
asked by anonymoys 
history
How did the advances in steel production and oil refining affect US industry History
asked by makayla 
math
A dealer offers a computer software program whose list price is $500 at a 19% discount. She will give an extra 3% discount if paid in cash. What is the selling price if payment is made in cash? If 500=81%, _____=78% (this comes from subtracting 19% from
asked by laura 
physics 2
A delivery truck travels 19 blocks north, 12 blocks west and 22 blocks south. What is its final displacement from the origin? Assume the blocks are equal length. Find magnitude and direction. which is counter clockwise from east is positive.
asked by geffrey 
psychology
Incomparison to concordance rates for autism in dizygotic twins, monozygotic twins are blank likely to develop the same illness. A significantly less B somewhat less C significantly more D somewhat more I believe the correct answer is C
asked by ourania 
Physics
For a child's swing in lightly damped SHM, I am given the time period and a value for g; (as well as the mass.) with just these, can i rearrange the equation: T (4s)= 2pi times sqrt l/g to calculate the length of the swing? I believe i have (3.98m), but
asked by charlie 
Trigonometry
Does anyone have a good website that shows the proofs for these equations? sin(u+v) = sin(u)cos(v) + sin(v)cos(u) cos(u+v) = cos(u)cos(v) + sin(v)sin(u) Thanks!
asked by Karth 
grammar
how can I write a sentences with prepersitional phrases?
asked by jasmine 
writing skills
find answer 5.which of the following sentences has a compound predicate b.while he swam she collected shells c.she washed the shells and dried them in the sun d.on the way to the bank the interest rates went down
asked by Ray 
8th grade Physics
I don't quite get the formula "w=(fd)" i understand what to do once you get the data, but i can't seem to ever get the data from the six basic machines, and converting the measurement units. I really need help, please
asked by Anonmymous 
physics
A car is driven 125 km west and then 85 km southwest. What is the displacement of the car from the point of origin (magnitude and direction)? find magnitude in km find direction in degrees. South of west.
asked by geffrey 
Social studies
how to put together a crossword puzzle for the state of Pennsylvia
asked by Alex 
chemistry desperately
i am completely lost, i confused myself. i need to find the concentration of HC2H3O2 HC2H3O2 + NaOH ==> NaC2H3O2 + HOH NaOH C= 0.3 M v= 0.25 L n= 0.075 moles M= 40.00g/mol m= 3.00 g NaC2H3O2 n= 0.075 moles m= 0.4973 g(ammount of acetic acid in solution)
asked by diana 
math
Use the exponent rule to simplify the expression. Assume the variable represents nonzero real numbers. (m^5m)^7/(m^32n^8)
asked by Anonymous 
business
A $1,000,000 face Tbill with 40 days to maturity is priced at $985,000. Compute the discount yield and the bond equivalent yield
asked by Anonymous 
Math correct
AM I RIGHT?? simplify (2x^2y^2z)^2(x^4y)^5 I CAME WITH 4x^13y^9z^2 FOR THE ANSWER.. convert the number to scientifc notation 13,550,000,000 I CAME WITH 1.355x10^9 FOR THE ANSWER
asked by Bryan 
science
I am having trouble with Restate the problem in terms of the following: Manipulated variable Constant (control) variables Principles of experimental design State in correct form the hypothesis you intend to demonstrate. I have conducted the experiment but
asked by pookie 
spelling
unscramble these words, the ending Sometimes us surprise with.
asked by poop 
psychology
In both parents are carriers of PKU A one child out of four will develop the disorder B none of the children will develop the disorder C their daughters are more likely to develop the disorder than their sons are. D all of their children will develop the
asked by ourania 
psychology
Leon maintains that children have an innate and natural curiosity. If Leon is an educator who wishes to apply his ideas to teaching methods, he has primarily involved himself in the A naturenurture controversy B activepassive controversy C
asked by ourania 
Finance
National Telephone and Telegraph (NTT) Company common stock currently sells for $60 per share. NTT is expected to pay a $4 dividend during the coming year, and the price of the stock is expected to increase to $65 a year from now. Determine the expected
asked by Anonymous 
Math check
Write the number without exponents 8.83x10^11 88,300,000,000
asked by Anonymous 
precalculus
show that (1,1), (9,4), (20,6) and (10,1) are the vertices of a rhombus and then find the area of this rhombus?
asked by dave 
math
25 over 100 = n/100 how do i solve for n?
asked by Devon 
Calculus
Washer Method: y=x^3, y=1 ,x=2 aroud the Y axis
asked by jack 
science
what are 5 facts on pulleys?
asked by breakfast 
algebra
I'm a little confused on how to solve this: The number of cricket chirps per minute is given by N(t) = 7.2t  32 Where t is the temperature in degrees Celsius. a. Graph the equation N(t) = 7.2t  32 I have learned a few ways to graph equations. One way
asked by Celina 
Scince
am having trouble with Restate the problem in terms of the following: Manipulated variable Constant (control) variables Principles of experimental design State in correct form the hypothesis you intend to demonstrate. I have conducted the experiment but I
asked by pookie 
Math
convert the number to scientific notation. .0000000009
asked by Devon 
Economics
Pls advise.. The max units of good A is 180 The max units of good B is 60 In general terms, what happens to the opportunity cost of good A as the output of good A increases? In general terms, what happens to the opportunity cost of good B as the output of
asked by Jonathan 
Physics
Why is the momentum in a spaceship traveling in space not conserved? Can someone please explain? thanks
asked by mw 
physics
When I toss a ball straight up, it travels up, stops, and then falls back to by hand. When it stops to change direction, how long is it stopped?
asked by Johnny 
Hospitality & Tourism
what is a word or words for this scrambled letters  et eaidtaernegvosanurr
asked by Ryder 
Geography
What are the four different types of monarchies?
asked by Mariz 
math
multiply and write answer without exponents (3x10^6)(2x10^4) Is the answer 60,000,000 ?
asked by Anonymous 
Physics
the question is to write down a relationship for the potential energy of a body of mass m, when it is a distance r from the center of mass M and radius R.explain all symbols used and show that if a body is to escape the gravitational influence of the
asked by Anya 
psychology
If you were attempting to explain to Jake how a chromosome looks, you would most accurately tell him it's like a A cone B flexible rod C sphere D ladder I believe the correct answer is D
asked by ourania 
Economics
What are the principles of economics invloved in producing price floors + cielings?
asked by Kayla 
Physics
For a child's swing in lightly damped SHM, I am given the time period and a value for g; (as well as the mass.) with just these, can i rearrange the equation: T (4s)= 2pi times sqrt l/g to calculate the length of the swing? I believe i have (3.98m), but
asked by charlie 
geography
How many miles does Argentina extend from east to west? "" north to south?
asked by jen 
math
Question: Just about everyone in any form of business today has seen at one time or another a Power Point Presentation. Do you think this type of "visual aid" is being overdone and consequently, doesn't have the impact it used to have?
asked by meshelle 
physics
the coefficient of kinetic friction between the block and inclined plane is 0.28 and angle è = 65°. What is the block's acceleration (magnitude and direction) assuming the following conditions? (a) It is sliding down the slope. m/s2 (b) It has been given
asked by help 
science
Would the following question apply in Science (or only Physics?): Why liquid soap dispensed through a small spout by pressing on it, solidifies interfering with its smooth ejection? Thanks very much!
asked by Pietra 
Math correct
Subtract.. (8x^4+5x^36)(2x^22x+6) I got 8x^4+5x2x^2+2x12 convert the number to scientific notation. 19,450,000,000 I got 1.945x10^10
asked by Bryan 
psychology
Dr Smartz has been intensely engaged in a study of the twins Annete and Brad for the last two years. You would most accurately say that Dr Smartz is engaged in a,an A gender experiment B correlational study C crosslagged method D case study I believe the
asked by ourania 
Microeconomics
Using the information below answer the following questions. If demand is :Qd = 400.00  15.00P and Supply is: Qs = 50.00 + 15.00P Where: Qd = quantity of the good demanded. Qs = quantity of the good supplied. P = price of the good. Part 1: The equilibrium
asked by Alex 
match check
Solve the following equation. 3(2x6)=(6(x3) a)0 b)1 c)all real numbers d)no solution is it a) 0? Write the number without exponents 3.44X10^10 is it 344,000,000
asked by Anonymous 
Math
The following table gives the winning percentages of the top five coaches in NFL history,what fraction of his games has each coach won? Don Shula 0.676 George Halas 0.672 Tom Landry 0.606 Curly Lambeau 0.624 Paul Brown 0.667
asked by Shirley 
psychology
Sperm cells carrying the Y chromosome will A always result in the conception of a female baby B will result in the conception of twins more often than those carrying an X chromosome C typically result in children with brown eyes D usually carry less
asked by ourania 
Math
Can 606/1000 be reduced further than 303/500?
asked by Tim 
math check
Simplify 1) (5t)(5t)^3 My answer: 5t^15 Write the number without exponents 2) 8.78x10^5 My answer: 878,000,000 Multiply. 3) (x+9)^2 My answer: 9x^18
asked by bryan 
Math Check
Multiply 1)8t^2(tt^2+7t^3) My Answer: 8t^3+8t^4+56t
asked by bryan 
psychology
Jennifer doesn't menstruate. In searching out the causes of her problem, a doctor could most safely ignore A a nonproduction of estrogen B the importance of Jennifer having only one X sex chromosome C the possibility of Turner's syndrome D the possibility
asked by ourania 
MAth
how do i find the domain and range of equations? example: f(x)=ab.solute value of x3. f(x)=square root 36x^2 g(x)=2x+2. how would i know what the domain and range is of these. could i use a graphing calculator to tell me the domain and range??
asked by Jamie Lynn 
spelling
ho do you make a "f" in cursive
asked by austin 
Math
In 1995, 7.4 million people used the internet. The growth rate is 59% each year. What is the general equation of the function?
asked by Paula 
sciencec
What is the one thing that does not change in a controlled experiment?
asked by chase 
Math
How many centimeters is 4 inches?
asked by Tracy 
math
If i place a dish of ice outside in the sun, The ice has a mass of 0.59 kg and a surface area of 0.039 m2. Assuming that the ice is originally at 0 °C and using my answer for part b, which was 1370w/m^2 * 49 * 0.039m^2 = 26.18 watts, How long do i have to
asked by trigger 
science
other than jupiter having a solid core like earth what else does jupiter have in common with earth?{please help}
asked by shayla 
To DAMON.. (RE: Phys question u solved yesterday)
YOU DID The tension in the string is the force exerted down by the falling disk and up by whatever is holding the disk. They are equal and opposite. If the disk is a yoyo, that force is exerted by your finger on the string to give the tension. Force up on
asked by Stacu 
Calculus
Using the Disk Method or washer method (im not sure which one) Find The volume of y=x^3 , y=1 , x = 2 revolving around the X axis
asked by Andrew 
sci
your opinion, is relative dating accurate? i say yes because .......
asked by troyer0269 
psychology
Monozygotic twins A share 50% of their genetic material B are formed from two eggs but fertilized by the same sperm C are as different as typical sibling are D will have vary similar physical appearance I believe the correct answer is D
asked by ourania 
psychology
Regarding causes of infertility, it is the case that A irregular or failed ovulation is the most common cause of female infertility B infertility lies in fertility problems of the male partner in about 12% of cases. C endometriosis result from repeated
asked by ourania 
IPC Science
Um.... My question is simple...What should you study the day b4 a Final?
asked by Crystal Torres 
math
how do you write 2 3/8 as a percentage/
asked by CC 
spelling
form a sentence with the 2 conjunction words she's and cann't
asked by roma 
IT 221
How can a project manager be sure that he or she has chosen the correct metrics to assess project performance? Give at least three examples.
asked by Sam 
5th grade
how to put together a crossword puzzle for the state of Pennsylvia
asked by Alex 
goe./writtng
does this make sence?: Argentina is a beautiful country filled with vast geography.
asked by jenny 
Middle school Engllish
My son recently had an English test where he was marked incorrectly, but I think he was correct. I just need some verification. The question: "The whole neighborhood watched him climb in his old pickup and ______ down our street at full speed." The word to
asked by Jin 
CRT/205
Describe a time when your moral values influenced the way you responded to an issue. What differences did you notice between your moral reasoning process and your logical reasoning process? What were the possible outcomes and consequences of your decision?
asked by Anonymous 
science
what wouldbe some examlpes on light and newtons??
asked by shade 
Math
In 1995, 7.4 million people used the internet. The growth rate is 59% each year. What is the general equation of the function?
asked by Paula 
World Cultures grade 7
Please help me asap! I have an essay due tommarow and I need to find out the 10 criterias a country has to follow in order to be considered a civilization! I have 5 minutes! Please help
asked by Savannah 
science
please give me a website about volcanoes
asked by Anya 
geography
Where would I find: a description of argeninte life?
asked by jen 
college
what is this answer (x)*y+p+qr=7410852963*1496324789245484445
asked by the world will never know 
history project
how to i get started on a middle ages shield?
asked by shyanne 
Writing
8th graders have a writing test coming up and they have to write an expository essay. The biggest problem is, I don't know what that is...help! If you can tell me and also give me an example. Thanks MC
asked by mysterychicken 
history
What parallel patterns do the law of april 6 and the intolerable acts have in common? How are they different?
asked by JOe 
9th grade american government
What is required to become secretary of state? How it affects our govt? Job description? Salary? When 1st established? Where located? Why is it important?
asked by nay 
science
what are 5 facts on screw?
asked by marisol 
Math
I have a question, if f(x)=x/2 and g(x)=3x+1 find: a)(f+g)(x). i do x/2+3x+1, how do i do this?? then how do i subtract those numbers, an how do i multiply them??
asked by Jamie Lynn 
college
Sherri Russell College Mathematics1 December, 16, 2008 Interpreting Graphs and Intercepts Introduction: Graphs are created so that we can quickly derive meaningful information from them. They provide a visual representation of the data and, therefore, an
asked by sherri 
spelling
What is an idiom that goes with this sentence?
asked by Anya 
space
choose five elements of the universe and tell why they are amazing and wonderous
asked by james 
chem
why are sig. figs important?
asked by Natash 
georgia studies
explain how geography helped to create regional diffrences among the american colonies.
asked by emily 
Math
These sets of numbers all follow logical patterns. Which numbers replace the question marks? ( 1, 8, ?, 64, 125 ) ( 00001, 00011, 00101, ?, 01001 ) ( 17,23,?,18,20,25,21,9,15,16 )
asked by Tina 
Math
These sets of numbers all follow logical patterns. Which numbers replace the question marks? ( 00001, 00011, 00101, ?, 01001 )
asked by Tina 
Calculus
washer method!? Find the volume of y=x^2+3, y=3, between [0,2] around y=3
asked by Andrew 
scince
waht is the name of the hair in side your ear that vibrats so you can heah
asked by savannah 
social studies
how meny fingers am i holding up
asked by jackson 
literay
what kind of emergencies could there be on spacecraft?
asked by adeeba 
Math IB SL
Factorize: 2x^2xy6y^2 ????
asked by vilmers 
spelling
I don't understand what to do on this: Words that begin with the "be" syllable.
asked by Anya 
math
what is the equation for arc length?
asked by john 
Science
What does a rooster do to defend itself when being attacked?
asked by Donna 
Math IB SL
2^2x . 5^(x3)=10^(x+2)
asked by vilmers 
spanish
how do u say estoy in the yo form in the past
asked by samantha