Questions Asked on
September 11, 2009

stoichiometry
if 5.00g magnesium is combined with 10.0 g of chlorine, show by calculation which substance is the limiting reactant and calculate the theoretical yield of magnesium chloride for the reaction. Someone PLEASE HELP ME!!!!
asked by Laura 
trig
Given that sin^2ceta/1cos ceta sin^2ceta/1+cosceta=1 where 0degress is less than or equal to ceta and less than or equal to 360 degress. find the value of ceta
asked by Padmore 
Chem
Lewis structure of [(CH3)3O]+. Be sure to show all atoms, bonds, lone pairs, and formal charges. Convert CH3CH(Cl)CH(OH)CH3 into a skeletal structure. If you could explain it, it would help. Or somehow do some of it here and explain. Im having a lot of
asked by Amy 
physics
A Hollywood Daredevil plans to jump a canyon on a motorcycle. There is a 15 m drop and the horizontal distance originally planned was 60 m but it turns out the canyon is really 69.6 m across. If he desires a a 3.2 second flight time a. what is the correct
asked by Andy 
physics
When you are running and want to stop quickly, you must decelerate quickly. What is the origin of the force that causes you to stop? Estimate the maximum rate of deceleration of a person running at top speed to come to rest.
asked by perry 
Chemistry
How many moles of bromine atoms are in 8.0x10^20 bromine molecules?
asked by Anonymous 
AP Physics B
Calculate the force of gravity on a spacecraft 12,800 km (2 earth radii) aboce the Earth\'s surface if its mass is 1400 kg. Ok for this question I first converted to meters for the radius then applied newtons law net force radial = m1 a radial = Fg = r^2
asked by AP Physics B 
Trig Picture
maybe i drew it wrong... h t t p : / / i 3 2 . t i n y p i c . c o m / i p m k o 5 . j p g the way my teacher taught me the angle of depression was the anlge that is made with a horizontal line or something like that i believed i drew it right oh and by
asked by Trig Picture 
physics
A rope of negligible mass passes over a puley of a negligible mass attached to the ceiling. One end of the rope is held by stdent A of mass 70 kg who is at rest on the floor. The opposite end of the rope is held by student B of mass 60 kg who is suspended
asked by physics 
English
If you hang back and reserve and criticise at first, you are preventing yourself from getting the fullest possible value from what you read. But if you open your mind as widely as possible, then signs and hints of almost imperceptible fineness, from the
asked by Lena 
Algebra
There were 1000 more students at the soccer game than nonstudents. Student tickets were $8.50 and nonstudent tickets were $13.25. If the total revenue for the game was $75,925, then how many tickets of each type were sold?
asked by Bev 
Chemistry
Draw the best Lewis structure for NCCH2C(O)CH2CHO, a neutral molecule. Show all atoms, bonds, lone pairs, and formal charges.
asked by Cathy 
intro to management accounting
The Minnetonka Corporation, which produces and sells to wholesalers a highly successful line of water skis, has decided to diversify to stabilize sales throughout the year. The company is considering the production of crosscountry skis. After considerable
asked by Lia 
math (27)
suppose there is a 3degree drop in temperature for every thousand feet that an airplane climbs into the sky.If the temperature on the ground which is at sea level is 63 degrees what would be the temperature when the plane reaches an altitude of 30,000 ft.
asked by scooby9132002 
ALGEBRA
I NEED SOMEONE TO CHECK THESE PLEASE!!! IF B IS REPLACED WITH A NUMBER THAT SHOWS THE RELATIONSHIP INDICATED IN THE TABLE, ARE THESE ANSWERS CORRECT? Y = X + B X Y 1 0 2 1 8 7 10 ? 20 ? 40 ? SO,
asked by ggift 
math
suppose there is a 2degree drop in temperature for every thousand feet that an airplane climbs into the sky.If the temperature on the ground which is at sea level is 52 degres what would be the temperature when the plane reaches an altitude of 27,000 ft.
asked by scooby9132002 
math am i correct (28)
after diving 90 m below the sea level a diver rises at a rate of 3 meters per minute for 8 min. where is the diver in relation to the surface? d=r*t 90=24 30/8
asked by scooby9132002 
chemistry
Why is the second not defined by the length of day? Is it because it's such a small fragment of time?
asked by susie 
college
A customer wants to mail a package. The postal clerk determines the cost of the package to be $18.95, but only 6¢ and 9¢ stamps are available. Can the available stamps be used for the exact amount of postage for the package? Why or why not?
asked by Lisa 
chemistry
Calculate the molar mass of a gas if 0.805g of this gas has a pressure of 4.00 bars at 305K in a 1 L. What is the gas density at this T and P, and what is the density at STP
asked by john 
chemistry
suggest how the ester might be separated from any unreacted ethanoic acid or methanol
asked by skajan 
Geometry
The inside lane in the track is 50m and the outside of the track is 100m 4 lanes are added around the outside of the track shown above. Each lane is 1 meter wide and the lanes are immediately next to each other with no space in between. If Teresa runs once
asked by hannah 
10th grade English
This is my history essay (well.. a speech) due in 5 days. Please correct any mistakes or awkward phrases ASAP. Thank You Good morning/afternoon Mr Bean and fellow classmates. Australia, as a country, has a short, yet explicit history since the arrival of
asked by Andy 
English
Hello I am in class six and i need a little discreption about indopak war 1965 for my H.W.
asked by Flwerita 
check geo
A_____ has caused great suffering in sudan: A)civil war lasting for more than a decade B)influx of tourist to the region C)increase in food production during the past 20 years D)decades long war with ghana my choice b
asked by henry 
physics
Calculate the watts equivalent of 22kilocalories consumed in 24 hours
asked by ashley 
math
17 11/12 / 6 1/10 = 343/366?
asked by sally 
math
Business and finance. Lunch meat sells for about $3 per pound. You use about 1/2 pound per day for sandwiches. How much should you budget for lunch meat over the next month (about 20 workdays)? =$30.00?
asked by sally 
math
Business and finance. Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in a 24hour period. Julio samples about 120 bottles an hour and rejects the line if he finds more than
asked by sally 
Trig
I have no idea how to do this problem From an airplane flying 2 kilometers aboce the ocean, a piolet sees two ships directly to the east. The angles of depression to the ships are 8 degrees 20 minutes and 75 degrees 40 minutes how far away are the ships? I
asked by Trig 
math
can you please check my answers? 12, 20, and 35 LCM =420 1/3+5/12+4+5=60 LCD 13/1511/20=19/60 What is the combined price for a 1/2in. sheet and a 5/8in. sheet? 1/2PRICE $17.88 5/8 PRICE$19.13 =37.01 1 1/15+3 3/102 4/5=1 17/30 5 1/3+2 1/4+3 1/2=11 1/12
asked by p 
Alegebra
Can some one please help me with this 3 problems I have a hard time with probabilities I'm studying for my midterm. Thank you 1) Urn A has balls numbered 1 through 7. Urn B has balls numbered 1 through 5. A ball is selected at random from urn A and then a
asked by Jessi 
AP US History
What were the diverse purposes of England's American colonies and how were those purposes altered in the early years of settlement?
asked by Katelynn 
MTH 156
If P (A) = 2/11, P(B) =3/11, and P(C) =4/11, what can you say about P(A or B or C) when P(A and B and C)=0?
asked by lorie 
algebra
a=3b for b The solution for a = b=3a did I do this backwards?
asked by algebra 
ALGEBRA
what is a trivial equation?
asked by ggift 
history
define history.explain historical sources and thair limitation.
asked by aliyu 
English
Hello i am in class 6 and i have to write about Indo pak war on 1965 i have seen Wikipedia and wrote something from that but it`s too big for me and it have so much information so it is really hard to take out some points. i need a information about Indo
asked by dil dil P 
Chemistry
What si the molar mass of Pb3(PO4)2 in units of g/mol?
asked by Anonymous 
Algebra
3 (in the nook) of the radical of 8 raised to the second power according to my book equals 2^2 which equals for. But how and why does this equal 2^2? Can you explain the process please? I don't get how that radical equals four! Thanks for your help!
asked by Eve 
math
how would i find the least common multiply of 12,20,35? i had 2 till i divided it by 25 and it did not work
asked by A 
social studies
who was the first floridians?
asked by smart 
science
calculate the cost of using a 100w lamp for 10 hours if electrical energy costs 11.3 per kwh
asked by georgie 
Math
I forgot how to do this 8/94/5=
asked by Jennifer 
algebra
Find the domain of the function? P(x)=x^2  2x + 10 I think it is {xx is a real number}
asked by scatterbrain 
U.S. History
What were the relations between the English settlers and the Indians of the southern Atlantic coast?
asked by Morgan 
Quick Question (URGENT)
What does this symbol mean (#) thank you
asked by John 
Quick Question #2 (URGENT)
How would show/ask 'What is your phone number?' in symbols and pictures. Would having a picture of a telephone and the number sign beside it, and write equal sign then question mark demsonstrate this question? Example: phone pic (#)=? If my idea doesn't
asked by John 
Science
Its July 4th 3pm in salt Lake City Utah what day and time is it in Tokyo Japan.
asked by Welma 
All
I just wanted to give thanks to all of the people on this website for all of the hard work and time you have given to me and to others. I still have much work to do so I just hope you will continue to be there for me as well as others.Thank you and God
asked by p 
hi ms.sue
Hi ms.sue! this is henry thanks alot for the help yesterday. In parts of Africa beginning in the 1960s: A)most efficent farming methods have helped reduced the effects of drought. B)severe droughts turned farmland into wasteland C)mild droughts had small
asked by henry 
4th grade english
Even a poor person could one day live at Pennsylvania Ave. Is poor person considered a proper noun cause it names a specific person.
asked by Tracy 
Business
I need a little help understanding the Business Organization portion of the Business Model. I have the definition for it, but I don't understand it: The system of task and authority relationship which coordinates and controls the interactions between
asked by A.H. 
physics
A ball is thrown upward from a platform 5.1 meters high with a speed of 13 m/s at an angle 45 degrees from the horizontal. what is the magnitude of its velocity when it hits the ground?
asked by Andy 
english
We must not squander our power, helplessly and ignorantly, squirting half the house in order to water a single rosebush (1).” I was thinking that this quote means to focus on one thing at a time. Is there anything else I am missing from it. It's from
asked by Lena 
For MathMate
Hi! So i posted a question yesterday and I worked on but before i submit my answer do you think you can check my answers? 1. 7x+3y= pi 4x6y= pi^2 2. 2x+3y= 0 4x+6y= 0 2 3. x+3y=1 4x+ 6y= 1 4. x+y=5 x+2y=10 5. 2x3y=5 4x6y=10 1.U 2.N 3.N 4.U 5.I
asked by Completely lost?! 
Math 115
9/11  3/11 + 7/11= 1/11? write in lowest terms
asked by A 
math
1/3+5/12+4/5=10/20 the least common multiply is 2/4?
asked by A 
Math
A forester has 43,682 seedlings to be planted. Can these be planted in an equal number of rows with 11 seedlings in each row?
asked by Rebecca 
math
Find the least common denominator (LCD) for fractions with the given denominators 13/15  11/20=2/5?
asked by A 
psy 210
case study: how might michael's situation illustrate adjument? how might this situation become an opportunity for personal growth? could this be correct? michael's situation illustrating adjustment could be that he faces his situations face on and know
asked by Lea 
chemistry
Calculate the partial pressure of 24 g methane, 48 g of oxygen and 56 g of nitrogen contained in a 25L container. What is the total pressure.
asked by josh 
Physics
A bike racer is riding his new bike at Silverstone. The track is 4km long. a) What is his average speed in m/s if he does a lap in 2 minutes? b) What is his velocity after one lap?
asked by Nabiha 
French
Can you check these: Directions: State whether the sentences are vrai or faux? 1. Un bagage à main est une très grande valise. Answer: faux 2. Avant un voyage on fait ses valises. Answer: vrai 3. Un vol intérieur est un vol entre deux pays. Answer: vrai
asked by Candy 
physics
A bike racer is riding his new bike at Silverstone. The track is 4km long. a) What is his average speed in m/s if he does a lap in 2 minutes? b) What is his velocity after one lap?
asked by Nabiha 
HRM
Create a script that can be used to open up an orientation workshop/class. Be sure to address the issues listed below and clearly state why such discussion is the responsibility of the HR department. Within the script, include the benefits of addressing
asked by Anonymous 
5th grademath
how do you write eighthundredthousand,two
asked by pam 
geometry
Write an expression for the quantity 506000cm in which it is clear that all the zeros are significant.
asked by Gigi 
English
1. He sometimes skips class. 2. He seldom skips a class. 3. He never skips classes. 4. He never cuts classes. 5. He seldom cuts lessons. 6. He hardley cuts a lesson. 7. he barely cuts the lesson. 8. He often cuts lesson. (Which expressions are right?)
asked by John 
biology
Name 3 life forms that change over time. What changes about these life forms as time passes?
asked by TONI 
Algebra (math)
3{[4(n4)+16][3(5n3)+5]}
asked by scooby9132002 
algebra
Can someone teach me the steps in finding these like terms I am not sure I am doing it right? 19c + 5d  10c 8d I come up with 19c 10c =9c + 5d  8d = 3d so: 9c  3d do I finally got this?
asked by Help 
algebra
simplify 5[8(3449)]
asked by algebra 
ALGEBRA
for which table(s) of values is the relationship linear and how? X 5 10 15 20 25 30 Y 20 30 40 50 50 50 I don't understand this at all...please help!!!
asked by ggift 
please edit
At the age of 12 I had developed a great interest in the art of Acting. Acting has always been a passion and a part of me. What I like about acting is that you can go on a stage or in front of a camera without worrying about what people will think because
asked by jj 
ALGEBRA
THE POLITICAL NOISE PROBLEM: The amount of background noise is important to television news reporters. One station developed the formula N= t2 + 12t + 54 showing the noise level in decibels (n) as it relates to the time after the speaker stops talking in
asked by ggift 
algebra
solve y8> 20 I get 28 am I correct?
asked by algebra 
history
please explain sources of history.
asked by bello 
history
explain historical limitation
asked by kelly 
social studies
what is historical limitation.
asked by kelly young 
social studies 11
what attitudes do you think contributed to support for the evacuation of japanesecanadians during world war II? Give evidence
asked by jj 
math
A company that makes thingamabobs has a start up cost of $ 1399. It costs the company $ 1.87 to make each thingamabob. The company charges $ 5.89 for each thingamabob. Let x denote the number of thingamabobs produced. 1. Write the cost function
asked by Completely lost?! 
science
Why do many science instructors suggest that younger students cannot develop adequate hypothesis
asked by Anonymous 
Math 115
13/18 + 11/18 then write all answers in the lowest terms? A8/9?
asked by A 
math
Number problem. You work 7 hours (h) one day, 5 h the second day, and 6 h the third day. How long did you work, as a fraction of a 24h day? A18/24?
asked by Ak 
math
13/18 + 11/18 then write all answers in the lowest terms? A3/2?
asked by A 
science behavior
recommendation for which research method should be used to gather data on the pathological liars and their spouses.
asked by Anonymous 
geometry
i have a triangle and i have to find the primeter....here are the measurements...3/8...3/8..3/8 on each side. 3/8+3/8+3/8=9/8?
asked by A 
Math 115
9/11  3/11 + 7/11=13/11 which is improper so the answer is 1 1/11?
asked by sally 
math
find lcd of 1/3,5/12, 4/5 =37/60?
asked by p 
English
What are the adjectives and adverbs in the sentence: Happily, we hoisted our heavy backpacks onto our backs and set out on the long rocky trail that led homeward.
asked by Brittny 
math
13/1511/20=52/6033/60=19/60 ?
asked by p 
science
how do you do a science project?
asked by smart 
English
e.g. You know what? (I think this expression is frequently used. What is the meaning of this one? Is it called an echo question? What is the difference between 'You know what?' and 'What do you know?')
asked by John 
physics
you are standing on one side of the river. Figure out the width of the river. All calculations have to be made on the side you are standing on. You cant step into the river or cross it. You may use the 2 laws ( sine and cos ). no guessing allowed. has to
asked by just wondering 
English
Tony Smith 4712034 Albertroad Strathfield. 2135. Sydney NSW Australia (This is an address. Would you check it? And let me knwo how to read the numbers. What about the punctuation marks. Do we have to use 'commas' or' full stops'? Please correct errors and
asked by John 
algebra
solve for the indicated letter c=2d, for d solution is d=
asked by scatterbrain 
algebra
find the indicated outputs for f(x)=3x^25x I get f(0)=0 f(1) = 1 f(2) =8) am I doing this right if not could you explain where I am wrong.
asked by scatterbrain 
algebra
Find the slope if it exists? x=4 I believe it is M=4
asked by scatterbrain 
computer
how do you install the SRI test to your computer?
asked by smart 
Socials
what three rules should be applied when using primary source documents to make sure that they are reliable and accurate?
asked by Rebecca 
Geology
Respond to the following scenario: o Your younger brother is in 5th grade. He comes home and tells you to look at an animation his teacher showed him in geology class. o Review the Continents of the Past animation on this week¡¦s aXcess page. o After
asked by A 
Geography/World History
Can you give me some details or descriptions of the rainforests in Africa. And also can you give me some animals that live there? Thanks
asked by Anonymous 
Math
Help, I am stuck: Find (A �� B) �� C, given A = {s, e, t}, B = {m, e}, and C = {f, r, e, e}. A) { } B) {s, e, t, m, f, r} C) {e} D) {s, e, t, m, e, f, r, e, e}
asked by Blake 
english
how can i formally start and essay about a certain interest? Any suggestions?
asked by Kim 
algebra
Pleas help with this. Explain the steps so I can understand what I am doing. solve 0.3x + 9
asked by algebra 
Social Studies
When water sinks into the soil, what does it become?
asked by Samuel 
algebra
evaluate x + y/8 x=65 and y=7
asked by algebra 
ALGEBRA
what are five ordered pairs that make this equation true Y = 20 + X/3 (that's x OVER 3)
asked by ggift 
algebra
2x + 3y =6 2x + 3y = 4 I get these lines are neither parallel or perpendicular. Am I doing this right?
asked by algebra 
algebra
solve 0.6x < 12 I come up with {x>20
asked by algebra 
Math
Will the intequartile range always be less than the range for a set of score? Is there an example of a time that the intequartile range will be greater?
asked by Amy 
Cultural Diversity
Do you believe the local government should be involved with reproduction choices and abortion access?
asked by jckkoo 
subgh
Reflect on your own worldview and compare it with the three worldviews presented in the text. Provide examples of the benefits of your view to defend your position.
asked by ashley