Total # Posts: 235
A shell is fired horizontally and takes .5 seconds to fall. If its initial speed were doubled, the time it would take to fall would be: .25 seconds I know the answer, but I need an explanation if possible.
October 3, 2007
math 1st. grade
Adding Doubles just means adding the same numberr to itself. Like 2+2=4, 3+3=6, So addind doubles to 18 would be 0+0=0, 1+1=2, 2+2=4, and so forth up to 9+9=18. Maybe this will help you solve the problem. I have a work sheet that has Add Doubles to 18 with questions asking how...
May 21, 2007
May 21, 2007
CAN SOMEONE FIND ME A TIME LINE ABOUT AVI? (Avi is a famous writer) THANk YOU!! HAPPY SB07 You should be able to construct a timeline using the dates and Avi's ages by reading this site. http://content.scholastic.com/browse/contributor.jsp?id=3262 Here is an excellent ...
April 10, 2007
The word step is misleading. http://biology.about.com/library/bltranslation.htm How many steps are there in translation? I've been searching and so far I have found a site that says that there are 5 steps, one that says 4 steps, and one that only has three steps.
March 21, 2007
Please help (Science)
http://en.wikipedia.org/wiki/Cyanobacteria Scroll to photosynthesis and read. Then think about how most plants and algae use chloroplasts to photosynthesise. Cellular examination of a cyanobacterium and a diatom reveals that the diatom has (which structure?) that is absent in ...
March 12, 2007
http://www.google.com/search?as_q=volcanoes+&hl=en&num=10&btnG=Google+Search&as_epq=ring+of+fire&as_oq=&as_eq=&lr=&as_ft=i&as_filetype=&as_qdr=all&as_nlo=&as_nhi=&as_occt=title&as_dt=i&as_sitesearch=&as_rights=&safe=images thankx kid wat is the ring of fire( volcanoes)
March 1, 2007
We don't just answer questions here. We help. So at least tell us your best thought out answer and why you chose it. Then we'll help. A truck gets stuck under a bridge. Several tow-trucks are unable to pull it ou. At last a little boy walks up and asks the red-faced ...
March 1, 2007
http://momo.essortment.com/versaillestrea_reif.htm http://en.wikipedia.org/wiki/Treaty_of_Versailles http://www.google.com/search?as_q=&hl=en&num=10&btnG=Google+Search&as_epq=Treaty+of+Versailles&as_oq=&as_eq=&lr=&as_ft=i&as_filetype=&as_qdr=all&as_nlo=&as_nhi=&as_occt=title&...
February 18, 2007
non-volatile means a liquid that won't evaporate at all. It's not a commomly encountered term because there is usually some evaporation (especially as heat is applied). The usual phrase is "very low volatility". Oil at room temperature or colder fits this ...
January 24, 2007
Look at the picture on the immediate left here: http://en.wikipedia.org/wiki/Earth's_magnetic_field Also: http://image.gsfc.nasa.gov/poetry/magnetism/magnetism.html HOW IS THE EARTH'S MAGTISM USEFUL thanks it helped me alot!!!!!!!!!!!
December 12, 2006
Where can i find drawing of electron dot stuctures for compounds like BR2 and HCN HCN is at the link below. http://dl.clackamas.edu/ch106-01/formulas.htm I couldn't find one for Br2 on line but here is how it will look.   .. .. :Br:Br:   .. .. That ...
November 29, 2006
There is a lot on this at: http://fig.cox.miami.edu/~cmallery/150/life/top_10_life.htm Make sure and go all the way to the bottom when you get there. characteristics of living things
November 20, 2006
Math Puzzler For Ken and BobPursley
Below is the original question and emailed response from my friend, Dr Ford, a theoretical physicist at Tufts University in Boston. Question: 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...
November 19, 2006
http://en.wikipedia.org/wiki/Melting_point Question: A solid substance has a vapor pressure of 100 mmHg at the melting point (100C). Assuming an atmospheric pressure of 760 mmHg, describe the behavior of this solid as the temperature is raised from room temperature to its ...
November 13, 2006
Give us the figures. Density is equal to mass over volume. D= M --- V To get mass you weigh the object. To get volume you either measure it depending on its shape eg. round, square. etc. or you submerge it in a graduated cylinder and measure the displacement ie. the water ...
November 13, 2006
Please don't do that again or you will be banned from this forum.Your question is pretty vague. What observation table are you using? There are thousands of different types of data tables. Is it in Microsoft Excel? Give more details. Try reposting your question with more ...
November 13, 2006
Chemistry (Need) 7:00
What characterizes the electron configurations of transition metals such as silver and iron? Thanks Alot in Advance.. Fe is in the 3d transition series and Ag is in the 4d series. Thus, the distinguishing electron for the 3d series enters the 3d orbital while those for the 4d ...
November 12, 2006
http://en.wikipedia.org/wiki/Protostar http://www.google.com/search?as_q=&num=10&hl=en&btnG=Google+Search&as_epq=stellar+evolution&as_oq=&as_eq=&lr=&as_ft=i&as_filetype=&as_qdr=all&as_nlo=&as_nhi=&as_occt=title&as_dt=i&as_sitesearch=&as_rights=&safe=images Which relationship ...
November 7, 2006
http://classweb.gmu.edu/biologyresources/writingguide/ScientificPaper.htm What are the steps of the scientific method? I think this should add a little more to answering your questions. First you have to decide what question(s) you want to answer â what ...
September 2, 2005
By movement I'm guessing you mean dispersal? Otherwise fungi don't move much. Try here: http://www.botany.hawaii.edu/faculty/wong/BOT135/Lect05_c.htm way of learning more about the natural world that provides possible explanations to questioins and involvesusing a ...
September 1, 2005
catalyst: a substance that changes the speed of a chemical reaction without affecting the yield or undergoing permanent chemical change* As you can see NO (nitrogen monoxide) did not undergo a permanent change. *http://www.chem.purdue.edu/gchelp/gloss/catalyst.html Lance, ...
August 5, 2005
According to Webster's not much. I'd say they were synonyms. Shoal: a large group or number : CROWD <a shoal of fish> School: a large number of fish or aquatic animals of one kind swimming together http://www.m-w.com/dictionary.htm
July 24, 2005
bobpursley, drwls. ms. sue Writeacher
When a second post is made to a question, the most recent is now at the bottom. Do any of you prefer the way it was, or do you like this better? I prefer to have the answers shown in the order they were posted. The second answer may clarify or add information to the first post...
June 16, 2005