Questions Asked on
December 6, 2006

Physics
A sled weighing 60 N is pulled horizontally across snow so that the coefficient of kinetic friction between the sled and the snow is 0.100. A penguin weighing 70 N rides on the sled. If the coefficient of static friction between the penguin and the sled is
asked by Armando 
Government Essay
I'm having a lot of trouble with this writing prompt: Discuss the reasons why the powers of the president expanded during the 20th century, compared to the 19th century and provide 3 examples of increased presidential powers. Presidential powers expanded
asked by cbarnett 
modern world history
how did the agricultural revolution pave the way for the industrial revolution Think of all the agricultural machines that were invented to aid the growth of agriculture (example: the reaper, the cotton boller) I am sure you can find others. Then as
asked by isha 
Physicsmomentum/impluse
hi well i have two questions i don't understand how to solve and all. 1) The front of a 1400kg car is designed to absorb the shock of a collision by having a "crumple zone" in which the front of 1.2m of the car collapses in absorbing the shock of a
asked by becky 
Chemistry
"Is the following species a dipole?" NH2Cl I have drawn out the lewis dot structure of the molecule and the electronegativy values I have are N 3.0 Cl 3.0 H 2.1 I know that the electronegativity difference between N and Cl is 0 and the bond is non
asked by Alexa 
Algebra
Can you explain to me how to solve this equation? 2/3x9=1/3 1/3=.33 and 2/3=.66 now the problem is 0.66x9=0.33 When I did this in math, I had trouble, but now I understand it. Since 0.33 is on the other side of the = then 9, you would do 0.33+9=9.33 In
asked by Britt 
CHEMISTRY
list three differences between molecular and ionic compounds, and explain how they relate to the differences in bond types.....how do i relate to the differences in bond types? List the differences and we'll talk about how they relate to the bond type. 1.
asked by INEEDHELP!!! 
science
if the force which propels the cannonball forward is 500 n, how much force will move the cannon backward? I assume 500n because forward is the opposite of backward, and 500n is the opposite of 500n. Forces occur in equal and opposite pairs.
asked by britney 
MATH
If an XTV costs 2400 and it's 25% off would the new total plus tax(0.0925)be 1,966.50? If lime green tack costs 300 and it's 40% off would the discount plus tax(0.0925) be 196.65? If a Rhino 660 costs 9000 and it is now 20% off would the new total plus
asked by Katie 
Biology
DNA was collected from 100 people and subjected to a restriction digest with BamHI. These samples were then analyzed using Stouthern blots. Three different patterns of hybridization were seen on the blots: 56 samples showed a single band of 6.3kb, 6
asked by Tammy 
math,bobpursley
Is this the correct way to solve these math problems and are the answers correct. Directions:Solve the following applications. Science. Jose rode his trail bike for 10miles. Twothirds of the distance was over a mountain trail. How long is tehe mountain
asked by Jasmine20 
math, Jay
How do these fractions turn into the following fractions. 1/3=10/30 1/5=6/30 1/10=3/30 There is a fundamental fact of math that says if you multiply anything by one , nothing changes. but 1 = 3/3 = 10/10 etc. So if you have a fraction, and multiply it be
asked by Jasmine20 
Science
Where can I find information on how to conduct an experiemnt on the affect of humidity on the hair of mammals? Please Help ..I know someone knows the answer. PLEASE!!! please someone answer me!!!!! possably search hair coloring brand names, and call or
asked by Brook 
Physics
1.The mass of a string is , and it is stretched so that the tension in it is 180 N. A transverse wave traveling on this string has a frequency of 260 Hz and a wavelength of 0.60 m. What is the length of the string? 2.A rocket engine emits of sound energy
asked by Jena 
MATH
AN AIRPLANE HEADS DUE NORTH 100MPH. IT EXPERIENCES A 20 MPH WIND FLOW IN THE DIRECTION S45(DEGREES)E. DETERMINE THE SPEED AND DIRECTION OF THE AIRPLANE. Dreaded vectors. Draw your vector diagram and do each part individually then use the x and y components
asked by ALASKA 
grammar
Yes  future perfect tense. Right. =) Is this verb tense correct? As of December 1, Ira and Sandy will have been going together for three years. As of December 1, Ira and Sandy will have been going together for three years. As of December 1, Ira and Sandy
asked by Writeacher 
math,algebra
They may want you to add the fractions and give the answer in forms of a fraction. in that case, you need to convert to common denominators before addineg. In that case 1/3 + 1/5 + 1/10 = (10 + 6 + 3) /30 = 19/30 5/6  3/5 = (25  18)/30 = 7/30 You answer
asked by drwls 
english
Then he says, slow and scornful: "The idea of you lynching anybody! It's amusing. The idea of you thinking you had pluck enough to lynch a man! Because you're brave enough to tar and feather poor friendless castout women that come along here, did that
asked by anonymous 
grammar
How to fix this sentence fragment. Richard III supposedly had the young princes murdered. Found out what really happened to them. I would make it into a compound sentence. Put a semicolon after murdered; and add "no one has" before the found.....etc.
asked by shelly 
grammar
Is this semicolon placment right? The Mariners lost all three games to Milwaukee; worse yet; two star players were injured. There should not be two semicolons. The first one is fine; the second should be a comma. =)
asked by shelly 
pf
i need help with pf. Please specify what your exact question is and please label your question as to the subject, example, English, algebra, chemistry, etc. We will be happy to help you.
asked by kahyla 
American Politics
Just when i think I'm getting a handle on this stuff, I get thrown for a loop. What is the "doctrine of selective incorporation"? It's being asked in relation to the nationalization of the Bill of Rights (the process by which most of the provisions of the
asked by Amy 
ENGLISH HAMLET
Hi, would someone kind please tell me, what the symbolisms are in Hamlet? Thank you http://www.sparknotes.com/shakespeare/hamlet/themes.html =)
asked by Al Gore 
Analytical Proof
The Theorum of Apollonius states in triangle ABC, if M is the midpoint of BC, then AB^2 + AC^2 = 2AM^2 + 2MC^2. Prove this theorum using analytic methods.
asked by Raj 
MATH
solve 9x  11 < 16 9x < 1611 9x < 5 x < 5/9 45
asked by Jose 
Science
Can you think of ways bacteriophages can cause trouble for humans? If they destroyed beneficial bacteria in our intestinal tracs If they did that same thing to livestock.
asked by Sam 
Physics
A typical brick has dimensions of 20.0 cm by 10.0 cm by 5.0 cm and weighs 20.0 N. How does the pressure exerted by a typical brick when it is resting on its smallest side compare to the pressure exerted when it is resting on its largest side PLEASE HELP !!
asked by anonymous 
Math
Imagine that a new operational symbol for mathematics has been developed. This symbol is ~ and is represented by: a~b=ab/ab Using this new symbol, find the value of :(2~3)~4. Just plug in. 2~3 becomes 2*3/(23) = 1, and 1~4 becomes 1*4/(15) = 4/6 =
asked by Ben 
Genetics (plz check answer)
Question: Calculate the frequency of the AA, Aa, and aa genotypes after one generation if the initial population consists of 0.2 AA, 0.6 Aa, and 0.2 aa. What I have done is: P = (0.2)+(0.5)(0.6)= 0.50 q = 1p = 1  0.50 = 0.50 Can someone check my answer
asked by Josh 
math
a hat on a grid has coordinates of (0,4), (0,1), (6,1), (4, 2), (4,4), (3,5), (1,5), and (0,4). What rule would make a hat with line segments twice as long as this hat's(coordinates above) line segments and moved 8 units to the right?
asked by AJ 
PreCal
Find the 5 roots of x^5+1=0 in polar and Cartesian form. (x^5 means x to the 5th power) x^5 = 1 = e^[i (2n + 1) pi] where i is any integer x = [e^[i (2n + 1) pi]]^(1/5) = e^(i pi/5)= cos pi/5 + i sin (pi/5) = e^(3 i pi/5) = cos (2 pi/5) + i sin (2 pi/5)
asked by Jack 
U.S. History
As a progressive, how did Taft compare with Roosevelt? http://www.sparknotes.com/testprep/books/sat2/history/chapter14section3.rhtml I thought Taft was a conservative. Anyway, the material you seek is in the above link.
asked by Anonymous 
social studies
gender issues applied to learning and development Boys’ stereotypes in k12 to Grade 2 . How these issues will affect boys’ learning and development? Girls’ stereotypes in K12 TO Grade 2. – How these issues will affect girls’ learning and
asked by Abigail 
grammar
Is this pronoun case correct? Perdo Martinez signed a baseball for Chad that he had used in a game. The problem with that sentence is you have a adjective clause that isn't in the right place. I would rearrange to start the sentence with For Chad, Pedro
asked by shelly 
english
I have to do a small project on popular plays in London in the 1800's, but I can't find ANYTHING on it. i've checked google and lots of other places but nothing will come up. Does anyone know a website where I could find this information?
asked by pinkpolkadots7 
World History Paper
Please provide feedback on this paper: Similarities of the American and French Revolutions The American Revolution and the French Revolution each greatly affected many people and how their countries were run. These revolutions had impact on economy,
asked by ML 
American Politics
A few questions that I can't find answers to in the book: How does the Constitution attempt to keep [federal] judges independent and removed from politics? What role does the U.S. attorney play in the federal judicial system? Thanks, Amy :) The Federal
asked by Amy 
Genetics
Question: Calculate the frequency of the AA, Aa, and aa genotypes after one generation if the initial population consists of 0.2 AA, 0.6 Aa, and 0.2 aa. What I have done is: P = (0.2)+(0.5)(0.6)= 0.50 q = 1p = 1  0.50 = 0.50 Can someone check my answer
asked by Josh 
math
find the integral secxtanxdx and if dy/dx= 2x/y^2 and y(o) = 3 then what is y(1) equal to and differentiate 2pi + 3secx secxtanxdx = Sin(x)/Cos^2(x)dx The integral is 1/Cos(x) + c dy/dx= 2x/y^2 and y(o) = 3 then what is y(1) equal to y^2 dy = 2x dx >
asked by Jay 
American Politics
What are the important Supreme Court rulings on freedom of expression (flag burning)? What is the Court's position on required flag saluting? I can't find anything on the first question, but for the second question, I remember my teacher saying that flag
asked by Amy 
Science  Physics
When a projectile is fired horizontally, which of the components of its motion is (A) motion at constatnt speed (B) uniformly accelerated motion (C) If the initial velocity of the projectile is increased, what effect will this have on the time it takes the
asked by Nicole 
Social Studies
What mountain range is located on the Western edge of South America? The Andes
asked by Logan 
Physics!!! please help... URGENT
Directions: Consider the following scenarios ignoring the effects of gravity: 1. You are the capitan of a spacecraft traveling in the far reaches of outer space, a great distance from any other body. Unexpectedly your radar indicates a meteor on a
asked by Kacey 
Physics
1.The mass of a string is , and it is stretched so that the tension in it is 180 N. A transverse wave traveling on this string has a frequency of 260 Hz and a wavelength of 0.60 m. What is the length of the string? 2.A rocket engine emits of sound energy
asked by Jena 
Chemistry
There is a patient whose height is 5ft. 4 inches and weight is about 165 lbs. This person needs to have 0.8 mg of medication per kg body weight. How much of medication should this person have? First convert the pounds to kilograms. There are approximately
asked by Allie 
microeconomics
at point where MR=MC, when the firm incurs losses in the short run, the firm should? Continue producing, but look for ways to increase revenue or cut costs.
asked by Yulissa 
Writing Inequalities
I need some help with this problem. A number is less than the sum of twice its opposite and five. Find the number. Thank you for your help!!! If by "its opposite" you mean the same number with opposite sign, then if you let x be that unknown number x < 2x
asked by meme1993 
Math  Calculus Question.
hey can someone explain to me the relationship between the chain rule and implicit differentiation? It would be very much appreicated, thanks The chain rule is utilized whenever you have a function within a function such as cos^2 x or (5x+1)^1/2. Implicit
asked by Andrew D 
trustee government
hi where can i find more information about trustees that play a role in the congress. i already know the basic definition but i need to know what they do when it comes to the congress. do they hold property in the government or something Please post the
asked by david 
MATH!!
How do I find vertices of a curve and a hyperbola? This may help: http://www.mathwords.com/v/vertices_of_a_hyperbola.htm The vertex is where the tangent to the curve chages direction most rapidly. When the curve is symmetric about vertical or horizontal
asked by BOB? 
english
how does the purple loosestrife impact on the enviroment This site will give you that information. http://www.invasiveplants.net/plants/purpleloosestrife.htm
asked by chemiii 
grammar
Is this sentence correct? The creature sat upright and tugged at the shackles binding his ankles; Frankenstein uttered a piercing scream. Yes, it's fine.
asked by shelly 
grammar
Is this grammar correct? Of the two football players, Herman was the heaviest. No, it's not correct. You are comparing two people; therefore, you should use "heavier" rather than "heaviest." In the late 1990s, the popularity of MTV’s The Real World
asked by shelly 
Chemistry
In our text book, the formula for finding the formal charge of an element in a compound is c(sub f) = X  (Y + Z/2) where x = the number of valence electrons y= the number of unshared electrons owned by the atom z= the number of bonding electrons shared by
asked by Alexa 
English
I have a project in English and I can not find any information about it. I need a website that can help me find information on the pollution in the 1800's. Thank you for using the Jiskha Homework Help Forum. Here are some of the sites on pollution in the
asked by scrgrl4 
ALGEBRA 1
ok the question is Describe how you would help a friend who needs to simplify the expression 4x to the fourth power over 2x to the fifth power plz help thanks Act like one of the teachers in here, explain with words and step by step examples. As in: "
asked by teri 
LITERAYURE
In the house on Mango Street why doesn't Esperanza feel Nenny can be her friend? Thank you for using the Jiskha Homework Help Forum. Nenny is the little sister and older sisters usually tend to consider the younger one a pest. She is also younger than
asked by StAR 
SCIENCE.... just need a web
Do you know a website that I could find something about humidity? THANKS A LOT !!!! What exactly do you need to know about humidity? type in "humidity", except more specific, on google. http://en.wikipedia.org/wiki/Help:Contents
asked by Mark 
Science
If you lost your ability to feel (your sense of touch) would to still be able to survive even if you had your eyesight? Personally, I think so. I think we would be able to adjust. I hope I'm never put to the test. This happens to diabetics and people with
asked by Chase 
English
The question is related to the novel A Christmas Carol by Charles !@#$%^&ens, who wrote about the social conditions in the 1800's. I need to find info on the pollution situation during this time. Any suggestions?
asked by scrgrl4 
PreCal
Recursive Sequences: find a formula for: 1,1,2,3,5,8,13,21 It looks like the Fibonacci sequence. Take the first two numbers and add them to get the 3rd. take the 2nd and third to get the fourth...etc. yeah, but how would i write that into a formula?
asked by James 
Writing
Study this brief analyses of the following problem. Then describe the objective in the problem. Then write an effective opening paragraph for a letter to the customer or client involved. In December, Mrs. Julie Schultz returns her leaf blower to Andersons'
asked by Lenora 
English (Hamlet)
I need help identifying 23 symbols in Hamlet's final soliloquy, and what they could represent. "How all occasions do inform against me, And spur my dull revenge! What is a man, If his chief good and market of his time Be but to sleep and feed? a beast, no
asked by Alex 
Physics  VERY IMPORTANT
Describe an experiment that shows that the rate at which an object falls is not affected by any horizontal motion it may have. EXPLAIN CLEARLY PLEASE!! thank you Take a dart gun, shoot it horizontally, and at the same time, drop a dart. See which one gets
asked by Marie 
math
Show that the formula for a line through two points (a1,b1) and (a2,b2) is: y=(b1b2)/(a1a2) * x + (a1*b2a2*b1)/(a1a2) The slope part looks right. Could someone explain how the yintercept part makes sense? I would think that the yintercept is:
asked by mathstudent 
Grammar
wondering if you can help me with these sentences: 1. African leaders are speaking out against a tradition in which widows have sex with a relative of their dead husbands because it helps to spread HIV. 2. The Ferrari was driven by a sexy woman with
asked by Jenny 
math,algebra
can someone correct this for me. Directions: Insert grouping symbols in the proper place so that the given value of the expression is obtained. 53* 2 + 8 * 5 2 ; 28 My answer: 53*2+8* (52) (53)*2 + 8*(52) = 2*2 + 8*3 = 4 + 24 = 28 Thank you that
asked by Jasmine20 
Science
HELP! I need to know what the Latin meaning of Rectus femoris, Subscapularis, Masseter, and Tibialis anterior are!!!! I'ma doing a matching sheet, these are the meaning to choose from: Chewing, Under the scapular, Straight of the femur, in front of the
asked by HumanBodyIdiot 
math
4+[310] Just use BEDMAS...bracket, exponent, division and multiplication, addition and subtraction. 4+[310] Since 310 is in the brackets, you do that first and get 4, so you have 4 + (4), and your final answer is 8. Raj must have made a typo. 310
asked by need help 
math
i can figure this out 2+5+6 i try inverse but im still getting it wrong ive been stuck on this fo awhile There is no inverse in the equation. the ... means absolute value. We perform what is indicated in the ,, and that is +1. The absolute value of
asked by need more help please 
English
What is the role of rhetoric in influencing people's attitudes and beliefs? Posted by Ms. Sue on Tuesday, June 20, 2006 at 9:47am. Check these sites to help you answer your question. (Broken Link Removed) http://en.wikipedia.org/wiki/Rhetoric
asked by Catrice 
Biology
if the incidence of cystic fibrosis is 1 in 2500, what is the expected frequency of carriers for the CF allels? assume that this population is in HardyWeinberg equilibrium. I appreciate a hint to start this answering this problem. p^2 + 2pq + q^2 = 1 p +
asked by Tammy 
Social Studies
I need to locate a map that will clarify latitude and longitude as it is need for Africa Climate Region Might I suggest downloading google earth at: http://earth.google.com/downloadearth.html
asked by Drock 
PreCalc ... need help fast
I need help writing an equation for a Sine Wave... I have 3 coordinates, but I can't get the eq. right... (4, 25), (7, 83), (10, 25). If anyone can help, I will be more than grategull. My group bailed on me. \m/ 25 is the lowpoint and 83 is the high point.
asked by Anna 
Micro
If i buy a machine it will save me $1000 each year for 3 years. If the interest rate is 8% what is the most I should pay for the machine? 1000/.08 = 12500.
asked by Chris 
science
How do i make a mechanical device using mechanical advantage to lift an 8lb trash bag with a 1lb can of soup. Use a lever with one end eight times farther than the other end is from the flucrum
asked by dustin hill