Sunday
December 21, 2014

# Posts by Lauren

Total # Posts: 1,549

Chemistry
If 456 dm^3 of krypton at 101 kPa and 21 degrees C is compressed into a 27.0 dm^3 tank at the same temperature, what is the pressure of krypton in the tank? V1= 456 dm^3 V2= 27.0 dm^3 P1= 101 kPa P2= ? P2= 101 kPa * 456 dm^3/ 27.0 dm^3 ANSWER: 1705.78 kPa
October 22, 2007

Determine the nature of the roots of this question (1/4)x^2+x+1=0
September 27, 2007

Math
Determine the nature of the roots of this question (1/4)x^2+x+1=0
September 27, 2007

Science
Yay! Thanks Liandra!
September 20, 2007

Science
I need one example of a class one lever that is nothing like scissors (eg. pliers, wire cutters...) and has nothing to do with hammers. Thanks.
September 20, 2007

Not Sure
Thanks a lot.
September 7, 2007

Not Sure
What about the bike of yesterday? Like the very first one ever?
September 7, 2007

Not Sure
What year was the first bike invented in? I can't find that information anywhere.
September 7, 2007

English
What is the simple subject and simple predicate in the sentence The first movies were different from today's films. I said the simple subject is movies and the simple predicate is were different. I this the correct answer?
September 6, 2007

math
write equation in standard form. E(-3,-6) and F(-5,-7)
September 6, 2007

I would construct the building within 200 m from the side near to the logging area, and I would construct the road across the reserve within 110 m from the side of the deforested pastureland. Constructing the building within 200 m from the side near to the logging area would ...
August 22, 2007

sci
I would construct the building within 200 m from the side near to the logging area and the road across the reserve within 110 m from the side of the deforested pastureland. This would help reduce the problem of parasitism by the brown-headed cowbirds by separating them from ...
August 22, 2007

sci
Suppose you are in charge of planning a forest reserve, and one of your main goals is to help sustain locally beleaguered populations of woodland birds. Parasitism by the brown-headed cowbird is an escalating problem in the area. Reading research reports, you note that female ...
August 22, 2007

BIOLOGY
Suppose you are in charge of planning a forest reserve, and one of your main goals is to help sustain locally beleaguered populations of woodland birds. Parasitism by the brown-headed cowbird is an escalating problem in the area. Reading research reports, you note that female ...
August 22, 2007

science
how do the moons stay in orbit around jupiter http://www.synapses.co.uk/astro/moon1.html Thanks
May 7, 2007

Physics
I believe it is as follows: a) x=0 b) y=0 the mag of x would be equal, but in the neg directioin c)x=0 and the mag of x is = to the origional d) all apply except mag of x does not equal 0 as a disclaimer i did not do the math to solve this, but you could use trig to check ...
May 7, 2007

US Gov't
On what two ground have Presidents base their power of Executive privilege ? http://en.wikipedia.org/wiki/Executive_privilege =)
April 26, 2007

US Gov't
What are the provisions of the 25th Amendment? http://www.law.cornell.edu/constitution/constitution.amendmentxxv.html It refers to who would succeed whom in case of the removal, resignation, or death of the President. Let us know if you have further questions. =)
April 25, 2007

chemistry
calculate the empirical formula: 79.8%C and 20.2%H. what os the formula Take a 100 g sample. That will give you 79.8 g C 20.2 g H. convert g to mols. mols = g/molar mass. 79.8/12.01 = 6.64 20.2/1 = 20.2 This gives the formula of C6.64H20.2 However, we know from Dalton's ...
March 31, 2007

economics
what happens to the united states economy when the gold standard was discontinued? Since this is not my area of expertise, I searched Google under the key words "gold standard economy discontinue" to get these possible sources: http://www.financialsense.com/...
March 31, 2007

I roll twelve 4-sided dice. What is the probability that I roll at least one 2? What is the probability that I roll exactly three 2s? i dont knowm sorry the same question was answered by Economist at 4:59
March 29, 2007

Math - Statistics
I roll 12 4-sided dice. What is the probability that I roll at least one 2? What is the probability that I roll exactly three 2s? So i take it, on any give roll, the probability of rolling a 2 is .25 (25%); the probability of rolling something else must be .75 The probability ...
March 29, 2007

science
For the following crystals, explain how their melting points are related to the bonding forces and the crystal structure. a)Copper,Cu b)Water,H20 c)Sodium chloride,NaCl d)Diamond,C (Broken Link Removed)
March 25, 2007

math
find all solutions in the interval [0,2 pi) sin(x+(3.14/3) + sin(x- 3.14/3) =1 sin^4 x cos^2 x Since sin (a+b) = sina cosb + cosb sina and sin (a-b) = sina cosb - cosb sina, the first problem can be written 2 sin x cos (pi/3)= sin x The solution to sin x = 1 is x = pi/2 For ...
March 22, 2007

math
tan (u-v) given sin u=3/4 and cos v= -5/13 with U and V in quadrant 2 Use the identity tan (u-v) = (tanu tanv)/[1-tanu tanv) Get the values of tanu and tanv from the sines and cosines that you are given. For example, if cos v = -5/13, sin v = 12/13 and tan v = -12/5 (in the ...
March 22, 2007

social studies
what do people who live in mozambique wear on their day to day activities http://www.google.com/search?source=ig&hl=en&q=mozambique There are all kinds of sites to sift through here. If you find nothing, you might try refining the search to mozambique everyday clothing. =)
March 6, 2007

Science
What is the smallest part of a compound?
February 20, 2007

drugs
Help! An inhalant is not a stimulant or a depressant. So... what is it then?????? Puh-leaze help me! My grade this term counts on it. What kind of inhalant? We inhale many things -- dust, illegal drugs, legal asthma medications, pollen, etc. Please clarify your question. ...
February 19, 2007

Health (drugs)
I know that inhalants aren't either a stimulant or a depressant. So what are they? Thank you for using the Jiskha Homework Help Forum. Here is a site from the government explaining inhalants: http://www.nida.nih.gov/Infofacts/Inhalants.html thanks, but I couldn't find ...
February 19, 2007

Gauss' Law!!!!!!!!!!
Can any one help me for this problem? The cube in Figure 23-27 has edge length 1.40 m and is oriented as shown in a region of uniform electric field. Find the electric flux through the right face for the following electric fields, given in newtons per coulomb. (the figure is ...
February 14, 2007

American Government
Does it matter if the Federal government or the state governments get to decide if the Federal government exceeded its authority? If yes, how? If the federal government decides if it has exceeded its authority, then obviously it's going to decide that it hasn't. The ...
February 9, 2007

Plz Help Physics
We know that the negative charge on the electron and the positive charge on the proton are equal. Suppose, however, that these magnitudes differ from each other by 0.00011%. With what force would two copper pennies, placed 1.4 m apart, repel each other? Assume that each coin ...
February 4, 2007

spelling
you rock people who gave all the answers to me i have to go bye!!!!!!see you next time and i am definently coming back to this awesome website bye!!!!
January 16, 2007

english (especially for Writeacher)
Lynch, T. (1996). DS9 trials and tribble-ations review. Retrieved October 8, 1997, from Psi Phi: Bradley's Science Fiction Club We b site: h t t p: / /w w w .bradley. edu /campus org/psiphi/DS9/ep/ 503r . html ... and this will go immediately after the quotation or ...
December 21, 2006

english
How do you cite a website in a paper? I know it is in parentheses, but that is pretty much all I know. citing websites (Broken Link Removed) http://www.jiskha.com/display.cgi?id=1166411079.1166414090 So are you saying I should put all of this: Lynch, T. (1996). DS9 trials and ...
December 19, 2006

Physics
if ur on about somthing else sorry but there are 1000grams im a killogram
December 8, 2006

science
these are my homework questions can you answer any???there are 4 1 A pupil placed some magnesium in a gas jar of oxygen How could the rate of reaction between these substances be increased 2 Complete the word equation for the reation magnesium and oxygen 3 How does the colour ...
November 29, 2006

math
what is an example of a positive corralation using a scatter graph? please help!!!!!!!!!!!!!!!!!!!! I don't know how to place that image in this reply. However, I will try to describe it. If both the abscissa (horizontal or X axis) and the ordinate (vertical or Y axis) ...
November 29, 2006

History
What problems did the Israelites face when they returned to Canaan? This is a religious, rather than a historic question. Please check your book or the Bible for the answer your teacher expects. As there is no physical historical evidence for Any of the events in the bible, ...
October 24, 2006

music scales
Hi, I need to play scales for my orchestra grade throughout the year. Is there an online site that has the (actual) scales on it along with the arpeggios? Thank you so much for your help. (The 12 major scales) I think this site will help you with that. http://www.8notes.com/...
October 19, 2006

nucleus true facts
Wow, BRANDON. You have absolutly NOOOOOOOOOOOOOO LIFE WHAT SO EVER. Ha, little boy. c[:
October 4, 2006

pre-calculus
pi*(200^2)^2
October 3, 2006

Math
A train track is 5280ft. long. After adding another foot of track, an arc is created. What is the height of the arc and how would i measure it? FIND THE LEAST COMMON MULTIPLE OF 6,9 The maximum height is given by [2640(5280) + h^2 = [2640(5280) + 0.50]^2^2 making h = 1.94 ft. ...
September 28, 2006

Physics
A rock is dropped from a height of 100m. a) how long does it take to fall the first 50m? b)How long does it take to fall the last 50m? Which equation would I use to solve this problems with? For a) use s=(1/)g*t^2 where s=50m and g=9.8m/s^2 and solve for t. For b)use s=(1/)g*t...
September 19, 2006

english
perks of being a wallflower. Does anyone know any symbols in that book? email or respond:
September 6, 2006

math
Thank goodness for this site! Two questions: first: in the 1990 U.S. census, the final count was 248,709,873 people. The general population is estimated to have been undercounted by 1.8%, that is, only 98.2% of the people were counted. If this were the case, what was the ...
August 28, 2006

World Civilizations
What evidence suggests that Roman society was more stable during the time of republic than it had been during the time of the empire? http://www.infoplease.com/cgi-bin/id/ipa/A0001206 At the above website, be sure to read the section on Rome before Augustus as well as the ...
June 29, 2005

history
hey i needinformation on sioux american indiands i need a syte wi everyfin on it b4 2moz :( im gona fail mi project plzhelp These sites have a lot of information about the Sioux nation. http://www.crystalinks.com/sioux.html (Broken Link Removed) tell me about iandiands in the ...
June 22, 2005

Pages: <<Prev | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16

Search
Members