Questions Asked on
November 16, 2006

Physics
a lunar landing module is descending to the moon's surface at a steady velocity of 10 m/s. At a height of 120m, a small object falls from its landing gear. Taking the moon's gravitational acceleration as 1.6m/s^2, at what speed, in m/s, does the object
asked by Sean 
physics
A .22 rifle bullet traveling at 360m/s strikes a block of wood, which penetrates to a depth of .110m. The mass of the bullet is 1.80g. Assume a constant retarding force.A) how much time is required for the bullet to stop? b) what force in newtons soes the
asked by Chris 
Chemistry
What is the electron configuration called that has 18 electrons in the outer energy level and all of the orbitals filled? Noble gas configuration
asked by Bryan 
physics
Two blocks each with weight w are held in place on a frictionless incline. In terms of w ans the angle theda of the incline, calculate the tension in a) the rope connecting the blocks; b) the rope that connects block A to the wall? a) it was wsin(theda) b)
asked by Chris 
statistics check my answers please
1)A nutritionist wants to study the effect of storage time (6, 12, and 18 months) on the amount of vitamin C present in freeze dried fruit when stored for these lengths of time. Vitamin C is measured in milligrams per 100 milligrams of fruit. Six fruit
asked by Anonymous 
physics
An oil tanker's engine have broken down and the wind has accelerated the tanker to a speed of 1.5m/s straight toward a reef. When the tanker is 500m from the reef, the wind dies down just as the engineer gets the engines going again. The rudder is stuck,
asked by Chris 
Chemistry
Which of the following pairs of atoms would you expect to combine chemically to form an ionic compound? A.Li and S B.O and S C.Al and O d.F and Cl e.I and K F.H and N Which of the following pairs of elements will not form ionic compound. a.sulfur and
asked by Chris 
physics
A man is dragging a trunk up the loading ramp of a mover's truck. The ramp has a slope angle of 20 degrees, and the man pulls upward with a force F whose direction makes an angle of 30 degrees with the ramp. a) how large a forec F is necessary for the
asked by Chris 
physics
A light rope is attached to a block with a mass of 6 kg that rests on a horizontal, frictionless surface. THe horizontal rope passes over a frictionless, massless pulley, and a block of mass m is suspended from the other end. When the blocks are released,
asked by Christina 
physics
A 640 N student stands on a bathroom scale in an elebator. As the elevator starts moving, the scale reads 800 N. a) find the acceleration of the elevator (magnitude and direction) b) acceleration if the scale reads 450N? c) If the scale reads 0 should the
asked by Christina 
Chemistry
What is the formula for the ions in the compounds BaSO4 and Li2CO3 BaSO4 has barium ions (Ba2+, Sulfate ions SO42, and Lithium carbonate has lithium ions Li1+, and carbonate ions CO32 Ba ions (might be written as Ba^2+) and sulfate (might be written as
asked by Bryan 
algebra1/McDougal Littell
a page of pictures for a yearbook is 8 1/2 inches by 11 inches. The space between the pictures is 3/16 inch. How high can each picture be to fit seven down the length of the page? since the the length of the page is 11 inches, and there has to be seven
asked by derrick 
Chemistry
How do i list the numbers and types of atoms represented by chemical formulas. Example Fe2O3 The subscipts tell you the number of atoms. For example, in Fe2O3 there are two atoms of Fe and three atoms of O. I don't understand the part about types. Please
asked by Bryan 
HUCK FINN... HELP!!!.. please
What is Huck's attitude toward Jim at the beginning of the novel? Is Jim portrayed as an individual or a type? Defend your answer. What does Huck's father criticize about the "govment"? What does Twain want the reader to feel about these issues? How is
asked by Anonymous 
physics
A light rope is attached to a block with a mass of 6 kg that rests on a horizontal, frictionless surface. THe horizontal rope passes over a frictionless, massless pulley, and a block of mass m is suspended from the other end. When the blocks are released,
asked by Benji 
Science
What is the mass of 15mL sample of mercury? Look up the density of mercury. mass = volume x density. Make sure the density is in g/mL. If it isn't you will need to convert it. One place to find density of mercury is at www.webelements.com and click on
asked by Crystal 
Help...More Math Help!!!...Please!
A kayaker paddled 2 hours with a 6 mph current in a river. The return trip against the same current took 3 hours. Find the speed the kayaker would make in still water. The speed is 6 mph slower going upstream and 6 mph faster going downstream. Distance
asked by Jessica 
social studies
name atleast 4 countries that posses islands in the caribbean sea? http://en.wikipedia.org/wiki/Caribbean#Presentday_island_territories_of_the_Caribbean Srroll down to list below map that says "Presentday island territories of the Caribbean"
asked by jack 
college math question
Find the GCD of 24 and 49 in the integers of Q[sqrt(3)], assuming that the GCD is defined. (Note: you need not decompose 24 or 49 into primes in Q[sqrt(3)]. Please teach me . Thank you very much. The only integer divisor of both 24 and 49 is 1. I don't
asked by student 
Math (matrices)
No one answered my matrix question. Let me rephrase: Let A, B, and 0 be 2x2 matrices. Assuming that A is invertible and 0 is all zeroes, what is the inverse of the matrix [A0] [BA] (that is a 4x4 matrix represented as 4 2x2 matrices) The answer is in the
asked by James 
economics
Consider the Slappers, a hockey team that plays in an arena with 12,000 seats. The only cost associated with staging a hockey game is a fixed cost of $6,000. The team incurs this cost regardless of how many people attend a game. The demand curve for hockey
asked by ashley 
Music
What are rock ensembles? I went searching around the net to find out and all i came up with was the names of some really good rock bands. I'll try find out something useful but it might take a while =( An "ensemble" is a small group of musicians playing
asked by Mariah 
Algebra and Discrete Geometry
For points X (1,3,5) and (2,4,6) find: a) the coordinates of the point P that divides the segment XY (internally) in the ratio 3:2. b) the coordinates of the point R that divides the segment XY (externally) in the ratio 2:5.
asked by Showman 
Science
I have to list 5 structural adaptations and 5 behavioral. Then, i have to write down how each adaptation is advantageous for the organism's survival PLEASSE HELP ME!! http://www.desertusa.com/survive.html
asked by Ginger 
physics
A loaded elevator with very worn cables has a total mass of 1800 kg and the cavles can withstand a maximusm tension of 28000N a) What is the maximum upward acceleration for the elevator if the cables are not to brake? b) What is the answer to part a) if
asked by Chris 
Social Studies
I need information on the Mayas, Incas, and also Astecs INCA LOVE GOLD AZTECS LOVE TURQUOISE Check these sites for a lot of information about these civilizations. http://encarta.msn.com/encyclopedia_761560004/Inca_Empire.html
asked by Samantha 
science
Can anybody please tell me 3 behavioral adaptations of organisms please and thank you http://www.paulnoll.com/Oregon/Birds/climatebehavioraladaptations.html
asked by Roxanne 
Math
line BC is one side of a regular ngon. The sides next to line BC are extended to meet at W. Find the measure of angle W in terms of n That's a triangle. Use the facts about the relationships between the angles. If the ngon is regular, then all sides are
asked by Sammy 
Chemistry
CoCl2 is a compound that is blue when it is dehydrated and pink when in its hydrated form. I have seen a solution of CoCl2 used to paint a coloring book type figure (on paper). This is hung outside and gives a blue color when the air is dry and pink color
asked by DrBob222 
Math
Let A, B, and 0 be 2x2 matrices. Assuming that A is invertible, find a matrix C such that [A^10 ] [C A^1] is the inverse of the partitioned matrix [A0] [BA]
asked by James 
college math
Suppose 32 = alpha*beta for alpha, beta reatively prime quadratic integers in Q[i] . Show that alpha = epsilon*gamma^2 for some unit epsilon and some quadratic integers gamma in Q[i]. Please help me . I got stuck with it! I'm not an expert in this stuff,
asked by student 
Help...Math...Algebra...please!...
Two cars leave town going in the same direction. One travels 55 mph and the other travels 65 mph How long will it take before they are 180 miles apart? Hint: We do know that one car is 180 miles ahead of the other, so the slow car's distance can be
asked by Jessica 
math
Factor 2x²+13x+40 I thought with this sort of problem you are supposed to multipy 40 by 2 and get 80 and then come up with two factors that equal 13. If this doesn't work, you are supposed to factor out a number/variable. Since neither of these methods
asked by Rory 
physics
A car can barley negotiate a 50.0m unbanked curve when the coeficient of friction betweens the tires and the road is 0.80. How much bank would the curve require if the car is to safetly go around the curve without relying on friction Draw a picture of the
asked by Anonymous 
debating on rap...
anybody have anything i could say in a debate that's debating on the CON side of "rap music promotes racism" (i'm saying rap DOESN'T promote it)? Try thinking up different sets of search terms and then entering them at http://www.google.com. I tried it
asked by narine 
Math
what is the name of the answer in a subtraction problem? difference thanx In sentence form, the  asks you "What is different here? So the answer is, the difference. :)
asked by NUSSE 
CONFUSED ABOUT OCEANOGRAPHY
Ridge systems are bout how many kilometers wide? 1ooo, 500, 100, 50, or 10. Yesterday, Bob Pursley was so kind to give me the answer of 50 km, but I'm still not sure. I think it's between 1000km  3000km because rift valleys are 2050 km wide. Can you,
asked by Suzanne 
Physics hw question mistake
Hello, I didn't post the correct questions correctly so here they are: Hello, I have some questions: 1. Do you think the calculated moment of inertia is larger or smaller than the true moment of inertia? Explain. for static moment of inertia I
asked by Teenesha 
Chem 1
Given the bond energy data below, which is the best prediction for the bond energy of the bond between the nitrogen and the oxygen atom in N2O? bond energy (kJ/mol) NO single bond 201 NO double bond 607 Indicate if it will be the single bond, double bond
asked by Rossina 
Social Studies
People may have reached the region that is now Louisiana about _________ years ago? a. 6,000 d. 18,000 b. 12,000 e. 24,000 This is simply a stupid question. It is a very intensive field of investigation, yet no definitive answer is yet available. Currently
asked by Dylan 
Math
Write equations that equal the number 44 using exactly four 4's 4sqred plus 4sqred plus 4qred minus 4 (donno if it counts) Hi Tom , We can only use the symbols of multiplication, division, subtraction and addition. Please try again Thanks 44+44 = 44
asked by Sonja 
English
Can you proofread my essay? "Why are you proud of your Vietnamese Heritage?"
asked by Anonymous 
Ethics
what is the good of morality This site will give you some good ideas about that topic. http://en.wikipedia.org/wiki/Morality Morality is a guide; it helps us to decide what is "good" and what is "evil." In other words, it helps us to choose between those
asked by sk 
Music
If a string quartet is a genre of chamber music, what is the genre of music for a rock ensemble? I would argue that the Dixie Chicks is a genre of rock ensemble. http://www.gepr.net/genre2.html The Dixieland Jazz Band would be one genre of rock ensemble.
asked by Jessica 
Cultural Relativism
If Cultural Relativism is true, morality is arbitrary. Why does this gives us reason to reject Cultural Relativism? There are at least two different world views of morality, one of them viewing morality as arbitrary and fixed and the other as relative to
asked by David Spencer 
Child Development QuestionPlz Help!!!
When shown the following two rows of dots, the preoperational child would say ...... . . . . . . A. both rows have the same number of dots B. the bottom row has more dots C. the top row has more dots D. the top row is shorter PLEASE HELP!!! b. The
asked by Melody 
ANOTHER OCEANOGRAPHY QUESTION
The deep oceans can be divided into about 20 separate basins by bathymetric features. Is this statement true or false? I know that the deep oceans can be divided by bathymetric features, but I'm not sure about the 20 separate basins. I seem to have found
asked by Suzanne 
Social Studies
On a global scale, where is precipitation most common? http://encarta.msn.com/encnet/RefPages/RefMedia.aspx?refid=461530746&vv=450 http://www.physicalgeography.net/fundamentals/8g.html For ocean and continents
asked by Maxy 
pre calc
Is there any complex numer that is equal to its conjugate? a+bi=abi????? precalc 11th grade a+bi=abi > 2 bi = 0 > b = 0 So, the imaginary part has to be zero.
asked by bill 
economics
how do u find the change in total cost and change in quantity when considering the marginal revenue equasion the w's2.hawaii.edu/~rpeterso/demand.htm
asked by alannah 
spanish
how do you say these words in spanish? notebook eraser cd player folders binder homework cellphone notebookcuaderno eraserborrador cd playerreproductor de compactdisc folders carpetas bindercarpeta homeworkdeberes cellphoneteléfono celular *this
asked by kesha 
social studies
What was the substance used to stuff the mummies's nosterals? Since this is not my area of expertise, I searched Google under the key words "making mummies nostril" to get this source: http://library.thinkquest.org/J002046F/mummies.htm Use the command to
asked by Emily 
chemistry
what ins the name for SrBr2 Strontium (II) bromide strontium bromide
asked by queen 
pre calc. help!!!!!!
i am building a rectangular swimming pool. the pool is to have a surface area of 1000 ft.^2. it also has a uniform walk way of 3 ft. surrinding it. X is the lengh of one side of the pool, and Y is te lengh of the other side. A.) express the area of the
asked by cheryl 
Chemistry
I was not the person who wrote that question last night? Chemistry  DrBob222, Wednesday, November 15, 2006 at 7:24pm Yes, it is possible in some cases. For example, CoCl2 is blue in the unhydrated form and pink in the hydrated form. As a kid, I used a
asked by Dave 
Chemistry
Can Someone explain the physical properties of metals, using the theory of metallic bonding There is a lot of reading here, most of it not what you are looking for, so scroll down ABOUT half way and you will come to a paragraph that explains conduction of
asked by Jeremy 
Geography
What are the two South American countries with no known oil reserves? This site lists at least four South American countries with no known oil reserves. http://www.eia.doe.gov/emeu/international/reserves.html
asked by elizabeth 
math Puzzler..
Hello, This is just a question that has stumped me for some time: We have a normal watch. The big hand is 4cm long and the little hand is 3cm long. What's the distance between the tips of the hands at the moment they are moving the fastest towards each
asked by quizzical 
accounting
On the statement of changes in owner's equity, how do you find the beginning capital?
asked by anonymous 
earth//space science
what is an inverse relationship? explain the relationship between the density of a planet and the distance the planet is from the sun "what is an inverse relationship? explain the relationship between the density of a planet and the distance the planet is
asked by Lindsey 
Colonial Votes
Have any info on colonial voting What do you want to know about colonial voting? Since we had 13 colonies for over 150 years, there's a lot of information about this subject. Please be specific about what you need.
asked by Jenny 
math
If the answer is 1 2/3, what is the question? 5th grade level answer please What is 5/3? UM THE FRACTION IS 1 2/3 hes saying 5/3 = 1 2/3 right. 5/3 = 1 & 2/3 OOO IS THAT RIGHT what is the deinition of whole number percent The question is to calculate this:
asked by Melissa 
S.S.
Have any info on colonial voting what is qualla boundary men only! no women. Please check these sites: (Broken Link Removed) http://en.wikipedia.org/wiki/Qualla_Boundary
asked by NUSSE 
science
No question was posted. Try again.
asked by DrBob222 
maths
orlando likes baseball. He's a good fielder, but he wants to improve his batting average. currently .200 (or 20%) for the first part of the season. he practiced a lot with a friend and managed to hit 10 out of 20 times that he was up to bat that season.
asked by I am not joe 
U.S. History
I'm doing a crossword on the war of 1812. My question is about impressment of American sailors. The question clue is: When the British would impress an American sailor they would ____ him. The word has 6 letters and the thrid letter is a D and the fifth
asked by Avalon 
Physical Science
Do liquids have momentum? Does the shape of an object affect the rate at which it will fall? Do thicker substances protect objects better than thin substances? Do liquids have momentum? yes Does the shape of an object affect the rate at which it will fall?
asked by Tom 
Math
How do you do this question? The buses park on the concrete slab. the slab's edges are 10 yards from the fence. What is the area of the concrete slab? 100 sq yds how many different triangles can you make from a set of three side lengths
asked by Arelys 
Support
My best friend just found out she's pregnant and the only one giving her support is me. What do I say or do? Your best friend needs to consult an expert AS SOON AS POSSIBLE. Use the Planned Parenthood website to find a health center near you.
asked by Jessica 
Ethics
characteristics of Orientalism. How may Orientalism and prejudice contribute to hate crimes against Muslims and Arabs Please tell us what you think  and we'll be glad to comment. Since Orientalism is not my area of expertise, I searched Google under the
asked by melynda 
Science
if a recipe for aple sauce cost for 1 killogram for apples how much apples would you need Did you mean to write "calls for" instead of "costs"? You would need one kilogram! :) You'd need one kilogram or 2.2 pounds of apples.
asked by Allesse 
precalculus
A can with the ratio of the height of the radius is 4 to 1. a. express the volume of the can as a function of the radius, r. b. express the volume of the can as a function of the height, h. c. if you want the can to have a volume of 100cm cubed, what does
asked by cheryl 
i really need help!! graphing
what do i put the viewing window as on my calculator if i have an equation of 2x^2+40000/x is x=0 an allowed value in the domain? So have to make allowances for x near zero. Check the problem: is x cited to have a particular domain? If not, then plot this
asked by cheryl 
OCEANOGRAPHY HELP
The deep oceans can be divided into about 20 separate basins by bathymetric features. Is this true or false. I can't seem to find out the "20" part. I know the bathymetric features part is correct. Please help if you can.
asked by Suzanne 
Math
Find the distance function s(t) if you know the acceleration function a(t)= sin(0.1t)/cos^3(0.1t) find the second derivative of a(t). I will be happy to critique your work.
asked by SKuink 
Ethics in business
What do you think is the best way of doing business ethics and why 1) all transactions are above board: nothing under the table. 2) Honesty in all transactions. No misleading advertising, or terms. 3) Follow the law, if it conflicts with the two above,
asked by sk 
spanish
Could someone please tell me what the word of 'pocket' as in 'pants pocket' is in Spanish? I used a translator, but I thought there was another word for it. ¿Cómo se dice 'pocket' en Español? Thanks in advance. :) El (casilla, bolsillo)de mi pantalon'
asked by Harry 
Alzheimer's Disease...help please!
Are there any websites where I can go too for treatments there are for Alzheimier's?PLease help!(It can not be a . com webpage) This is the website for the Alzheimer's organization. www.alz.org/
asked by Jessica 
Colonial Timing
What were some things invented in colonial times invented by anybody besides Benjamin Franklin Thomas Jefferson was also an inventor. You can read about some of his inventions at (Broken Link Removed)
asked by Jenny 
math
how can you tell which form of a ational number is most appropriate in a given situation?
asked by kayla 
Science!
What are the parts of a battery and how do they function? http://home.howstuffworks.com/battery.htm
asked by I REALLY NEED HELP! 
History
During the Reformation period, did political concerns primarily serve religious needs, or was religious ideology primarily an instrument of political practicalities? Either way, it's a huge generalization. I think it depends on the individuals you want to
asked by Sarah 
another college math question
Please teach me. I am completely blank with it. :( Let alpha = (3+sqrt(3))/2 belongs to Q[sqrt(3)]. Show that if x is congruent to 1 mod alpha, then x^3 is congruent to 1 (mod alpha)^3. Similarly, show that if x is congruent to 1 mod alpha, then x^3 is
asked by student 
Introduction to the Criminal Justice System
To whom it may concern: There was a posting on August 31, 06 in response to "Can someone proofread before submission?" and it was posted by PsyDAG. I was wondering if someone could tell me who or where I could find the in text references? They are;
asked by Jo 
science
what just cheetahs eat ? Are they related to tigers ? http://en.wikipedia.org/wiki/Cheetah
asked by adrian 
please help its bedtime
how can you tell which form of a rational number is most appropriate in a given situation? Use an integer, or fraction, NEVER a decimal number. If your number is say 3.5, then the rational answer would be 35/100. if the number is .75, then the rational
asked by kayla 
Math: Calc
y= 3x^2+3x+2 Find the diferential dy when x=4 and dx = 0.4 and when dx = 0.8. How do I find these diferentials? y= 3x^2+3x+2 dy= 6x dx + 3dx Now put in the values, and compute.
asked by Katie 
science
if u answer this,. ok if u extend ur arms straight out and drop them at ur sides then keeping them straight bring ur arms dirctly in front of u do this movement ten times where are the muscles that cause this movemernt located? Try here it may help:
asked by Matria 
hi live experts
for the online expert help, do any of the experts help you for free or do we have to pay. i liked the other one better with the AIM experess. we're just students and others...but I suppose some are experts. It's all free I don't kno please hwlp with
asked by dolphino 
mATH
wRITE A EQUATION TTHAT EQUALS THE NUMBER 44 USING EXACTLY FOUR 4'S 4^4  4^3 4 = 44 Can I use ONLY 4's? How about 44 + 4  4 or (4/4)x44 or 4! + 4x4 + 4
asked by Anonymous 
Music
Are string quartets chamber ensembles?
asked by Sally 
Science
I am answering all the questions in an exam from 2002 because these questions most likely will come up again. The question i don't know the answer to is, "In winter, people want to stop warm air getting out of their rooms. Give two examples of how this can
asked by i have exams tomorrow 
4th grade math?? help!!
2 to the 2 power??? i need help !!!! 2^2= 2*2= 4 thanks boobbbyyy!!!
asked by Billy 4th grade 
science
Is a swamp and marsh always wet throughout the year? YES UNLESS THERE IS DROUGHT
asked by Katie 
Chem 1
In this website, winter.group.shef.ac.uk/vsepr/isomers.html Does model (A) have the most interactions... leaving model C to least reactions? The way I read it is that model C has the most interactions and model A has the least (overall); therefore, the
asked by Rossina 
factors
is there a formula for finding factors of a number ?
asked by albert