Questions Asked on
January 25, 2007

Chemistry
How are the two parts of a conversion factor related? Either the numerator or the denominator is one of the units needed for the converstion, then the denominator/numerator is the other unit needed. thanks. whats two conversion factors based on the
asked by Dennis 
Chemistry
How do I make the following coversions, in standard exponential form? 1)14.8g to micrograms 2)3.72 X 103kg to grams 3)66.3 L to cubic centimeters 1 g = 10^6 micrograms = 10^6 ug. 14.8 g x (10^6 ug/1 g) = 14.8 x 10^6 ug = 1.48 x 10^7 ug. You do the others.
asked by Bryan 
Chemistry
What conversion factor would you use to convert between these pairs of units? a)minutes to hours b)grams to milligrams c) cubic decimeters to milliters. There are 60 minutes in 1 hour. There are 1000 mg in 1 g. There are 1000 cubic centimeters in 1 cubic
asked by Bryan 
Physics/Science #3
A ball is thrown vertically downward from the top of a 35.9m tall building. The ball then passes the top of a window that is 10.7 m above the ground 2.00 s after being thrown. What is the speed of the ball as it passes the top of the window? The equation
asked by TechnoBoi11 
physics
One end of a uniform 4.0m long rod of weight is supported by a cable. the other end rests against the wall, where it is helf by friction. The coefficient of static friction between the wall and the rod is .50 Determine the minimum distance,x,from point A
asked by cyndi 
physics
A water molecule consists of an oxygen atom with two hydrogen atoms bound to it. The bonds are .100nm in length and the angle between the two bonds is 106 degrees. Use the xy axis shown and determine the location of the center of gracity of molecule.
asked by cyndi 
help me unscramble this word
ok can you help me unscramble this word "ANLDEGN".When it is unscrambled it its either the name of an ocean, country, state, city, or animal. Try these: http://www.ssynth.co.uk/~gay/anagram.html http://www.unscramble.net =) Thank you for using the Jiskha
asked by rachel 
need HELPwith 2 questions!!
How long is day and how long is night? Does the sun come up in the morning all over the world? Explain please help me I only need: How long is day and how long is night? Does the Sun come up in the morning all over the world? Please explain to me. At any
asked by HelpMe Please!!!! 
Physics
A hockey puck travelling at 26 m/s [E 22* S] rebounds off the board at 21 m/s [E 22* N]. The puck is in contact with the board for 0.0025 seconds. Determine the average acceleration of the puck over the interval. average acceleration= change in
asked by Raj 
Chemistry
I Have Two Questions 1)How would you calculate the number of nanometers in 8.1 cm? 2)What is the equivalent of 0.35 lb in grams? You need to learn to do deimensional analysis. It's easy. 0.35 lb to grams We know there are 453.6 g in a lb. We take the given
asked by Bryan 
math
A bag contains red, blue, and orange marbles. If the probability of randomly selecting a red marble is 0.4 and the probability of selecting a red or blue marble is 0.9 what is the probability of selecting a red or orange marble? In my opinion, the easiest
asked by Preston 
Algebra
I'm suppose to write an equation with the following information: Line passes through (2,6) and is parallel to x=8 I know i must use the slope point form the problem is that since x=8 I don not know which is the slope. Please help me :) The line for x=8 is
asked by claudia 
Biology
why does proline stain yellow in ninhydrin?
asked by Question 
Physics/Science #2
A rock is thrown verticaly upward from ground level at time t = 0. At t = 1.65 s it passes the top of a tall tower, and 0.95 s later it reaches its maximum height. What is the height of the tower? height = _______ m First, find the initial velocity from
asked by TechnoBoi11 
Chemistry (Check)
Are most factors unity? Is this True or false I'm thinkin true.. The actual size of a measurement multiplied by a conversion factor remains the same, beacause the measurement being converted is multiplied by unity. okay
asked by DrBob222 
HistoryBlood Diamonds
i cant find anything on this subject...i have to write a history report and it would help if i have a timeline on blood diamonds. well i've been searching on the web for 'the history of blood diamonds' but all i seem to find is the movie, which is what i
asked by Kim 
MATH
Some students pass around a box of candy containing 25 pieces.Kendra took the first piece of candy. Each child takes a piece of candy as the box is passed around. Kendra also gets the last piece and may have more than the first piece. How many children are
asked by Melthea 
science
How long is day and how long is night? PLEASE HELP ME! thanks PLEASE HELP ME!! We usually think, in the United States, of a day being 12 hours and night being 12 hours; however, as you well know, the actual hours of daylight and night time change daily.
asked by Samantha 
math
How many 22 cenimeter oieces of string can be cut from a 4.2 meter piece of string? How many centimeters are left over? Convert 4.2meters into centimeters, then try dividing 22 centimeters into that number how here's a conversion chart that should help
asked by Preston 
First Amendment Question
Which would be permitted under the establishment clause of the First Amendemnt? 1. A public elementary school inviting a local pastor to visit each morning to open the day with a prayer in the gym for any students who wish to attend. 2. Public high school
asked by Carrie 
conversions check my answers
I need these checked, thanks! 1. a) 8.95cm to meters= 0.0985m b) 1298.4g to kilograms = 1.3kg c) 129cm to millimeters = 1290mm d) 2452 mL to liters = 2.452L 2) A cyclist rides at an average speeed of 24mi/h. If she wants to bike 15km, how long (in hours)
asked by Student00 
new description for jiskha.com
The new meta description for jiskha.com is: Students get free homework help from teachers and experts on message boards and chat rooms. Website also features educational articles in math, science, social studies and literature. It will probably take Google
asked by Leo 
Math
Some students pass around a box of candy containing 25 pieces.Kendra took the first piece of candy. Each child takes a piece of candy as the box is passed around. Bob also gets the last piece and may have more than the first piece. How many children are
asked by Melthea 
Physics/Science
A startled armadillo leaps upward rising 0.547 m in the first 0.202 s. (a) What is its initial speed as it leaves the ground? _____m/s (b) What is its speed at the height of 0.547 m? _____m/s (c) How much higher does it go? _____m Use distance vs time:
asked by TechnoBoi11 
social studies
How many people work at Kennedy Space Center? http://www.nasa.gov/centers/kennedy/about/biographies/biocurrent.html You can count the number of people listed here, but I'll bet this is not the entire employment list. You might also click on FirstGov and
asked by harley 
Compiler Construction
Given the following 3address code 1: a = 1 2: b = 2 3: c = a + b 4: d = c  a 5: if( d < 20 ) goto 11 6: d = b * d 7: if( d > 20 ) goto 11 8: d = a + b 9: e = e + 1 10: goto 6 11: b = a + b 12: e = c  a 13: if( e < d ) goto 3 14: a = b * d 15: b = a –
asked by bineesh 
english
i have a project for english that has to do with minoritys and i have penelope cruz....on the rubric it says celebrity status...can someone please tell me what that is or what penelope's is...it would help a ton!!! Penelope Cruz is a Latina actress. what
asked by gr8 
social studies
What where the people in north africa like, what was their surroundings like Since this is not my area of expertise, I searched Google under the key words "North Africa people" to get these possible sources: http://www.africaguide.com/culture/index.htm
asked by jasmine 
Spanish
Hello, can someone please proofread my spanish? Thank you. ENGLISH: To whom it may concern: Hello, my name is JYD. I am an interviewer for Time Magazine. Fidel Castro has been away from the media for a long time now, and many are wondering if he is still
asked by JYD 
Math
What is the unit rate? A racing car travels 180 miles in 1.5 hours. 5 i need it as a fraction like: 180mi/1.5 hrs thats not the unit rate i think it is The units here will be miles per hour. (Another valid yet rare answer is hours per mile.)
asked by kristy 
precalc
If f(x)= xB/xA, f(2)=0, and f(1) is undefined, what are the calues of A and B? my teacher is picky and requires all work to be shown. can you explain how you got this answer? A is 1 from the f(1) is zero. The denominator has to be zero. B is two, since A
asked by Sam 
Econ
The demand for widgets (QX) is given by the following equation: QX = 425PX¡V1.5PW¡V1.25PG+0.8PY+0.1 M where QX= number of units of widgets sold per week PX = the price of widgets = 400 PW = the price of woozles = 50 PG = the price of gadgets = 80 PY =
asked by Jason 
unknown
if i am 3 times as old as my sister and last year i was 4 times as old as her how old am i now and how old is she well how old is your sister You are 9 and she is 3 (3x3=9) Last year you were 8 and she was 2 (2x4=8) your sister is 3 and you are 9 let x =
asked by kia 
math
Find the percent of the increase or decrease. Original:4500 New:4005 the percent is lower which is 40% Set it up in words: 4005 is what percent of 4500? Now make the words into numbers: 4005=4500x x=0.89 89% decrease. If you don't get it please let me
asked by Anonymous 
AP US History
Was the War of 1812 defensive or aggressive on America's part? I feel like it was aggressive because we attacked first, but maybe it was defensive because we were defending ourselves against impressment. Someone please clarify this for me, thanks. You're
asked by Belinda 
Social Studies
What are some of the coolest facts about Washington D. C.? Please answer my question soon! its not in washington! Please see the answer I posted to your first question. Although it is our capitol, it is not one of the states
asked by Emily 
math
I need help differentiating this question: 3e^4x that's three e to the power of negative 4x. when you differentiate, you get: 12e^4x thanks, but how come it's not 12e^4x1, or do i just not minus a one when the power is a coefficient? Remember, the
asked by elle 
For Dr.Bob222
I posted a question under First Amendment, would you look at the question and give your opinion? I'm not finding it Carrie. I Posted the question under first amendment question I will pass since government is not my field.
asked by Carrie 
accounting
A firm has in the past provided for bad debts on the basis of 10% of yr end trade receivables.The provision brought forward (brought down) on 1 Jan 2006 was €520 During the yr ended 31 December 2006 the bad debts written off amounted to €620 and the
asked by Mehreen 
Chemistry
Income tax for some states is computed by taking 3% of the excess income over $3,000 plus 1% of the first $3,000. How much tax is charged on a income of $12,000? 12,000 1 percent on first 3000 3 percent of (12,000  3000) I'm trying to figure the
asked by Bryan 
Physics
When a ively charged object comes in contact with a +ively charged object, they dischage. The electrons flow from the ive side to the +ive side until the charges on both objects are equal What happens when a negatively charged object and a postively
asked by testing 
math,question
okay i really don't understand this problem. It says: Prove the pointslope equation property which is : Pointslope equation(an nonvertical line with slope m and containing a point (X1,Y1) has the pointslope equation of yy1=m(xx1). Now show that any
asked by Jasmine20 
angles
whats 252 +180 and 302 +180 whats 252+180 203 for the first one 208 for the second one How do i find the correct angle?
asked by ciara 
Due 2morrow
Some students pass around a box of candy containing 25 pieces.Kendra took the first piece of candy. Each child takes a piece of candy as the box is passed around. Bob also gets the last piece and may have more than the first piece. How many children are
asked by Melthea 
art
Artistic in the Baroque, Rococo, Neoclassicism, and Romanticism eras: with social conditions Since this is not my area of expertise, I searched Google under the key words "artistic Baroque 'social conditions'" to get these possible sources: (Broken Link
asked by dre 
copyright
i want to know the assignment format and style, how to start. Thank you for using the Jiskha Homework Help Forum. Could you please make your query clearer? Hopefully you want to know something about copyrights. In that case, the following site should help
asked by christy 
Markrting
What are three lessons learned relative to the importance and effectiveness of various pricing strategies? What are the three lessons learned relative to the importance and effectiveness of distribution channel options?
asked by zeta 
scince
how are ice cubes made http://home.howstuffworks.com/icemaker.htm my science teacher, mr.Abothu, has set us homework on input variables and output variables but we have no clue what they are and its got to be in tomorrow! please help!!! regards lauren
asked by Anonymous 
AP US History
What was Thomas Jefferson's party called against Hamilton's Federalist party? Check this site for your answer. http://www.pbs.org/wgbh/amex/duel/peopleevents/pande05.html
asked by Belinda 
Chem(again)
Can someone tell me the equation for converting Celcius temperatures to Kelvin temperatures? Thanks K = 273.15 + C
asked by Chrissy 
Math
If you have 2coins to make 30cents but you can not use a nickel? That's impossible without a nickel. Unless, if you are allowed to make more than 30 cents, then you could use 2 quarters, but if you mean 2 coins=30 cents that can't be done. That's
asked by kassandra 
chem
what does coefficients in equations mean, in chemical terms? 2NaCl means we have two molecules or 2 mols of NaCl. Most texts caution us not to use molecules but to stick with the latter part of the definition (moles); however, I don't have any problem with
asked by luke 
math
n31/2=12 what is 2+2 do you all know any website that help you with your homework Yes. This website has many teachers who will help you with your homework. Please post your question. 2 = 1+1 2 + 2 = (1+1) + (1+1) = 1 + 1 + 1 + 1 = 4
asked by rock 
chemistry
what are some physical changes? tearing paper, pouring water from one container to another, breaking a stick. This are physical changes because the starting product and the ending product are the same.
asked by amanda 
english
boat:store::sail:_____________ (hint) Look at the word "sail"
asked by Keegan 
Science
Explain why condensatin forms on a glass containing a cold drink. Only so much water vapor can be in the air at any temperature, and at cooler temps the air holds less. Air is very cold near the surface of the glass. hi plz help me i whant some information
asked by Sebastian 
French
A la gare ~Quelqu'un _________ l'arrivée d'un train à travers le ___________ . What words would fit into those spaces? Thanks Thank you for using the Jiskha Homework Help Forum. First of all, what do you see? "Someone..........the arrival of a train
asked by Steve 
SCIENCE HELP!!??
Hi Please any one can help me in my science homework It is Imagine that you were driving in a car and it was raining, what would be the froces acting around the car and what would the electrical charges bee around the car, on the base and in the sky. I
asked by AQW 
music
has anyone ever heard of Alexz Johnson? she is a canadian atrist who stars on the CTVshow instant star. Thank you for using the Jiskha Homework Help Forum. Here is one site: http://en.wikipedia.org/wiki/Alexz_Johnson P.S. And here is her Web:
asked by schoolgirl12 ;) 
ChemTemperature and Volume Relationships
What condition must be true when conducting temperature volume measurement? Why would a rubber balloon be a poor system for this kind of expirement? The general equation is (P1V1)/T1 = (P2V2)/T2 If V and T are being studied, then P must be held constant.
asked by Chrissy 
Biology
How many types of amino acids are there in milk? I believe there are either 8 or 9, all of which are essential to humans because humans cannot create these proteins.
asked by Question 
Belinda, Math
I aked the instructor about that problem that looked like this: (w(1)/(4))^2 and he said that what i thought was right. which was : the answer:w^2(1)/(2)w+(1)/(6) Yes, that's right. I just thought your way of getting the answer was more complicated than
asked by Jasmine20 
math, correction
the equation is and directions are: graph xy=2 so then the equation would really be: y=x+2 and from here i would do the table to plot the points. Close. y=x+2, not x+2. Then, yes, plot the points. so your saying that the equation that i have to graph
asked by Jasmine20 
Social Studies
What are some really cool facts about Washongton D. C.? This site has a lot of cool facts about Washington, D.C. http://www.infoplease.com/ipa/A0108620.html
asked by Emily 
science
230 volts, 120 watts what fuses will i need a 3A, 5A, 13A please answer Power= V*I so currnt= power/V in this case 120/230, in this case less than an ampere. So use the 3A.
asked by becky 
Math
You timed yourself typing a book report. It took you 28.8 minutes and the report was 4.5 pages long. Hoh long would it take you type one page? a. Write an expression to find the amount of time it will take to type one pate. b. Tvaluate the expression. How
asked by Justin 
science
PLZ u7nscramble this: yunadbro regidansp Is this really homework? I don't see the academic value in unscrambling words, other than possibly testing your IQ. The first word is boundary. The second word I'm not sure. Still staring at it. Ahh, it's spreading.
asked by loplop 
math
A gymnast received the following scores from 5 judges in the state competition. floor:8.8, 9.3, 8.1, 8.9, 9.5 bars: 7.6, 8.2, 8.5, 8.2, 8.9 vault: 9.5, 8.9, 9.4, 9.5, 9.0 beam: 8.4, 8.5, 8.4, 7.9, 8.7 Her score for each event is found by computing the
asked by Preston 
speaking your mind
what is the importance of speaking your mind? It depends on your mindset. Some have power needs, some have attention needs, some have emotional needs to hear themselves, and some have mouths that just seem to be connected to a Duracell battery. One can not
asked by anonymous 
HELP ME!!
What qualities of an oral presentation are most important to you as an audience member? Explain your answer (Broken Link Removed) http://www.tau.ac.il/~smiriam/mugbar/criteria2.htm http://www.ncsu.edu/midlink/rub.pres.html Please note that we don't do
asked by Letitia 
Physics
A hotair balloon is rising upward with a constant speed of 2.21 m/s. When the balloon is 2.25 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?
asked by Jena 
Math 
What would the interval be for a bar graph with the following data: 104,135,124,144,122 Highest number minus lowest number 144104 = 40
asked by Jake 
Computer Graphics
Q. Determine the equation for a cubic spline segment passing through two end points A (0, 5) and B (10, 20), having a slope of 2 and a curvature of 0.5 at A. Equation for cubic spline is:
asked by bineesh 
Computer Graphics
Q. Determine the equation for a cubic spline segment passing through two end points A (0, 5) and B (10, 20), having a slope of 2 and a curvature of 0.5 at A. Equation for cubic spline is: y=a0+a1.x+a2.x^2+a3.x^3 Slope equation is:y’=dy/dx=a1+
asked by bineesh 
Social Studies
Whst are some really cool places in Washington D. C.? I loved the museum of Natural History, the Aviation museum, National Art Gallery, and the zoo!!! There are soooo many interesting places there you will have to go back several times to see it all. This
asked by Emily 
English!
I have two questions that I'm not quite sure on. In the sentence 'To Franklin, publishing was a challenging and rewarding career', which word is a gerund? a.publishing b.challenging c. rewarding d. career In the sentence 'Benjamin Franklin enjoyed
asked by Kasey 
gurublue
can u help me find sites that have info on blood diamonds? (Broken Link Removed) (Broken Link Removed) thank you very much
asked by Kim 
World History
Why were christian beliefs so appealing thanks for your help ♥ Christian beliefs are appealing because they promise salvation for sinners, a God that loves them, and a good life in heaven.
asked by Teri 
science
how might an industrial chemist increase production of their plant with knowledge of reaction rate. please explain.
asked by michelle 
yes or no question
hi i have to do a project where i have to find media bias between two articles for government. and i was wondering if it is okay if i could just post little pieces of those two articles and ask for help. when i read the two articles, it doesn't seem like
asked by david 
social studies
This is interesting reading, from an author along the same lines: http://www.nicolagriffith.com/anarchivehomework.htm When did the first settlers arrive in eastern texas for what reason We are not going to do your homework for you.
asked by bobpursley 
science
whatis mass? bbb mass From the web. "Mass is a property of physical objects that, roughly speaking, measures the amount of matter they contain. It is a central concept of classical mechanics and related subjects. en.wikipedia.org/wiki/Mass" i am having
asked by kennesha 
math,question
on a graph if a line is running verticle right on 5, then the slope of it would be x=5 yes thank you so much for all your help you are awsome.
asked by Jasmine20 
math,help
this other one how can i actually prove it if this is the equation to use. the problem states: Prove that if a line has slope ma nd yintercept b, then an equation of th eline is y=mx+b. then it says (Hint: use the pointslope equation theorem) I've looked
asked by Jasmine20 
math
n+1.5=12 n + 1.5 = 12 n = 12  1.5 What do you think n equals?
asked by rock 
math
n+6.5=12 Subtract 6.5 from 12 to find your answer.
asked by rock 
Religion,help
What events and figures have shaped the development of Islam in the United States? i really don't know how to answer this question or even what points to hit. I know that one even was the Iraqi war but i don't know what else i can put because i don't want
asked by Kailin 
social studies
who authorized a group of french merchants to create colonies in north america You posted over twenty of these homework questions. What do you think are the answers?
asked by jasmine 
math
5+5=10 yes
asked by kennesha 
Earth Science
What two things are used for determining how a rock was formed??
asked by Anonymous 
math 4th grade
If Sally gave a survey with five colors listed and ask each person who takes the survey to pick one color. She assumes that the results if given to 24 persons the results would be 1/2 blue, 1/12 red, 1/8 blue, 1/4 green, and 1/24 orange. What number of
asked by j 
Help me!
Anyone know what is 12th powerful words to find a photo? Letitia, please let us know what photo you are looking for and we may be able to help you find it.
asked by Letitia 
articles govenment
This is from CNN Bush did get support from some Republicans. "The president consulted with the best military minds ... and came up with a new strategy, and I think it deserves a chance," said Sen. John Cornyn, RTexas. "This is our last chance. The
asked by david