Questions Asked on
August 25, 2010

Psychology
Which one of the following statements about intelligence is the most accurate? a) IQ is a vaild measurement, and environment factors do not change mental ability b) intelligence is mostly genetic, has the most variablity between groups, and is reliable
asked by Rena 
Physical Education
Two bodies are thrown vertically upwards with the same initially velocity of 98metre/sec but 4 sec apart.How long after is thrown will they meet?
asked by Chris 
math
identify the equation of the line through (2, 1) and parallel to y = 3x + 1
asked by ashly 
College Math
farmer wishes to fence a rectangular area along the river bank. No fence is required on the side adjacent to the river. The material for the fence costs P16.00 per meter for the side parallel to the river, P12.00 per meter for the side perpendicular to the
asked by J 
technique quantitative
Case Problem 2  PRODUCTION STRATEGY Better Fitness, Inc. (BFI), manufactures exercise equipment at its plant in Freeport, Long Island. It recently designed two universal weight machines for the home exercise market. Both machines use BFIpatented
asked by nur 
history
Different labor systems predominated in various regions of British America. How did the economy of each region help determine its labor system?
asked by Pierre 
chemisry
I am having problems with this redox question. 3 Ag2S + 2Al 6 Ag + Al2S3 What are the charges on each;
asked by Kelsey 
Miscellaneous
How can I become the smartest person in y class?
asked by Anonymous 
math
Which of the following is a subset of set A? A: {children between the ages of 3 and 7} a.children over 7 b.children3 years old c.children of all ages d.children under 3
asked by star 
physics
Soccer player #1 is 8.6 m from the goal. If she kicks the ball directly into the net, the ball has a displacement labeled A. If, on the other hand, she first kicks it to player #2, who then kicks it into the net, the ball under goes two successive
asked by ray 
basic college reading
main idea of mythMyth 2: You have to read every word. Some experts suggest that you don’t need to read every word of a passage. This is particularly true once you break your reading task into steps with distinct purposes. For example, the first step in
asked by james 
algebra
Draw And Shade a figure that represents 150%.
asked by Derek 
math
an old picture has dimensions 33 inches by 24 inches. what one length must be cut from each dimension so that the ratio of the shorter side to the longer side is 3/4
asked by anonymous 
math
one number is 2 more than 3 times another . their sum is 22 . find the number 4,18
asked by anonymous 
physics
The drawing shows a person looking at a building on top of which an antenna is mounted. The horizontal distance between the person's eyes and the building is 85.0 m. In part a the person is looking at the base of the antenna, and his line of sight makes an
asked by ray 
physics
Given the quantities a = 9.7 m, b = 4.2 s, c = 69 m/s, what is the value of the quantity d = a^3/(cb^2)?
asked by ray 
biology
what is lamarck's theory
asked by roel 
precal
The economist for a large sportinggoods manufacturer developed the following function to model the company's sales, where S is sales in millions of dollars and t is the week of the year, beginning January 1 of each year: S = 8 + t/52 – 6cos(πt/26)
asked by Anonymous 
business
how does the internet affect our culture in terms of the way we do and perceive business ?
asked by diva 
math
show that the equation 2x1sinx=0 has exactly one real root. sin x = 2x1 2x = sin x  1 range of sin x is 1 to + 1 but how do you know that 2x is between 2 and 0 and so x is between 1 and 0
asked by kwack 
trig
find all sets of three consecutive odd integers whose sum is greater than 54 and less than 63
asked by lindsey 
math
The United Nation declared that the world's sixbillionth inhabitant was born on October 12, 1999 in Bosnia. Don't discuss what is not said. Discuss what is said. what is wrong with this statement according to what is allowed in statistics?
asked by sylvia 
physics
Two nonparallel light rays initially converge to a single point on a screen. A rectangular block of glass is now placed somewhere in front of the screen, in the path of the light rays, so that the glass surface is parallel to the screen. Where is the new
asked by rudi 
Phych
Can someone please help me think of a mnumaric for my Name Amanda Pavlic
asked by Amanda 
staistics/ math
A statistician needs to survey a sample of 50 people that is representative of voters in his community. He prepared a list of phone numbers of 50 randomly selected, expected voters. Next morning, he came to work at 8:00 and began to make calls. By 11:00
asked by sylvia 
college
A thirteenyearold girl, who is underdeveloped and thin, has a blood disorder. She frequently experiences chest and abdominal pain, fever, and coughing, and has trouble breathing. Her teachers often spend additional time with her, explaining concepts that
asked by Anonymous 
Math/Algebra Can some one see if I did this correc
Find the greatest common factor for the group of terms. 66a^2, 11a^5 11a^5
asked by Angel Eyes 
JJ
A 30.84 mL volume of 0.128 M NaOH is required to reach the phnolphthalein endpoint in the titration of a 5.441 g sample of vinegar. Calculate % acetic acid in the vinegar.
asked by Jeffrey 
PHYSICS
Two spheres are launched horizontally from a 1.1m high table. Sphere A is launched with an initial speed of 5.0M/S . Sphere B is launched with an initial speed of 3.0M/S A. What is the time for the sphere A to hit the floor? and sphere B to hit the ground
asked by NENE 
CHEMISTRY
A 31.43 mL volume of 0.108 M NaOH is required to reach the phnolphthalein endpoint in the titration of a 4.441 g sample of vinegar. Calculate % acetic acid in the vinegar.
asked by Jeffrey 
science
3 types of energy collected by telescopes
asked by reagan 
4th grade
what is value of the number 7 in 700,000
asked by joni 
math
using pointslope form write an equation, perpendicular to the line y4=2(x3), containing the point (3,4)
asked by kelly 
science
The pressure created by the weight of air is greatest_______.
asked by sean 
MATH
FIND THE L.C.D. OF THE FOLLOWING GROUP OF FRACTIONS AND EXPRESS IN TERMS OF THE L.C.D. 1/2, 3/4, 3/8 ANSWER____8?_____
asked by LITTLE BOB 
childcare
A main source of fat and saturated fatty acids in children's diets is A. meat B. candy C. whole milk D. french fries (My answer is D) The most important consideration when installing playground equipment is A. cost B. height C. finishing materials D.
asked by action 
science
A model that may be make up of numbers, equations, and other forms of data
asked by Josha 
5th grade
what si 1.05 + 1.50
asked by jalan 
childcare
Ms. Sue Thank you very much I think I got the picture.
asked by action 
ALGEBRA 2 W/TRIG
identify the equation of the line through (7, 10) and horizontal
asked by ashly 
ALGEBRA 2 W/TRIG
identify the equation of the line through (2, 1) and parallel to y = 3x + 1
asked by ashly 
algebra
this tells me to rewrite the expression using the distributive property and then simplify plz help me and show me the work here are the questions. 15(f+1/3) 16(3b0.25) (c4)d
asked by jeffrey 
college
what are some examples of emerging mores related to dating coworkers?
asked by phyllis 
Geograhy
how does wind and water effect earth climate
asked by Josha 
history
What role did religion play in early European efforts at overseas colonization? Did religious factors always encourage colonization, or did they occasionally interfere with European expansion?
asked by Pierre 
trig
What are the maximum and minimum values of 6cos(πt/26)?
asked by Anonymous 
history
Comparing French, English, and Dutch Colonies, which ones attracted the most settlers, and which the fewest? In what colonies were women scarce? What impact did these differences in emigration have on various colonies' development?
asked by Pierre 
math
17% 1gal and 1:750
asked by Anonymous 
science
The chemical substance found in the atmosphere exists as a / an______. a) mixture b) radical c) element d) compund e) solid I PICKED D
asked by sean 
basic college reading
find the mainMyth 1: You only need to read the material once. Textbooks are packed with too much information to understand, much less retain, in one reading session. This is particularly true if the information is new and unfamiliar. Most students who can
asked by james 
math
Find the L.C.D. of the following group of fractions and express in terms of the L.C.D. 1/3, 3/5, 21/25,13/15 Puzzle!
asked by Patrice 
physics
so if a capacitor is connected in series with a resistance. Then if one side of capacitor is connected to a positive terminal. Then does that mean that plate has to be positive charge. The electrons travel from the positive plate around the loop to the
asked by blasting 
English
Is the lyric(story) of the song Clementine real?
asked by rfvv 
child psychology
The ability to solve abstact problems such as those found in algebra and higher mathematics is influenced by devdlopment and A. genetics B. societal factors C. health D. cognitive style
asked by Anonymous 
math
solve of x: (x3)(x+)>0
asked by kelly 
FP101
I need help understanding how to complete an insurance matrix.
asked by confused by adverbs and adjectives 
science
A mixture of two gases, C2H2 and H2, has the properties listed below. nC2H2=0.028moles nH2=0.015moles PC2H2=79torr What is the PT for this mixture? I first found out the mole fraction by first adding H2 and C2H2 and got 0.043, then did 0.028/0.043. I
asked by Tiffany 
physics
a ball with a mass of 0.150 g and positive charge of q=41.2 C is suspended on a string of negligible mass in a uniform electric field. We observe that the ball hangs at an angle of =22.0o from the vertical. What is the magnitude of the electric field?
asked by Matt 
Biology
Some questions on a review that I have no idea! Describe what the earth looked like when it first formed? Why was the presence of oxygen so important keep in mind aerobic,anaerobic respiration and the amount of ATP produced?
asked by Jenevecia 
Math
Help! How do I complete these magic squares! They're taking me FOREVER! In magic squares, certain numbers have to add up to a certain sum, and be the same sum diagonal,across,and vertical. (Sorry if I didn't explain well) Arrange the numbers
asked by math 
5th grade
what is the sequence to 1/2,0.5,50%,1/7,0.143,
asked by kayla 
social studies
What are maps called that focus on specific ideas?
asked by Nancy 
spanish I
how do you pronounce De donde eres in spanish?
asked by ashly 
adult education
What are some methods that are used to uncover basic emotions? Which one of these methods is the most effective? Why?
asked by bart 
math
the greastest area that a rectangle whose perimeter is 52m cm have is
asked by anonymous 
Algebra Adding & Simplifying a Fraction
Add. Simplify if possible. 3z/z^24 + z/z2 = Not sure if it would be 3z/z^2.
asked by MBK 
algebra
2x5(x=3)>20
asked by Sandy 
math
what part of 3/4 is 1/10
asked by anonymous 
social studies
What do you call maps thatshow features that humans have created on Earth's surface?
asked by Nancy 
algebra
2x5(X+3)> 20
asked by Sandy 
health
What are some methods that are used to uncover basic emotions? Which one of these methods is the most effective? Why?
asked by bart 
math
what is the median of the following group of score 27,27,26,26,26,26,18,13,36,36,30,30,27,29 27
asked by anonymous 
Chemistry
For Peroxyacyl nitrate (PAN) A compound of C,H,N,O Determine the empirical formula from the percent composition by mass: 19.8% C, 2.50% H, 11.6% N What is its molecular formula given that its molar mass is about 120g?
asked by Amy~ 
math
what percent of 260 is 13 20%
asked by anonymous 
math
b.Use your new formula to find the mass of the automobile in kg for each value of force and time given in the table below. Round your answer to the nearest whole number
asked by star 
math
4 1/3 1 5/6 2 1/2
asked by anonymous 
Algebra
Order of Operation help
asked by Vannesa 
chemistry
what is the equivalent of 0.46ml in microliters?
asked by Juvan 
calculus
The problem is to evaluate the integral 10secxtanx dx, from 1/7 pi to 3/8 pi. What I've done so far is evaluated the integral since secxtanx is a trig identity, so the integral of that is secx. I took out the 10 since it was a constant which leaves me
asked by Douglas 
5th grade English
How courageous the people were to go against the powerful king! Exclamatory sentence Let them eat cake. Imperative Don't miss the choir's performance of that magnificent song. Imperative
asked by Chris 
fiance
Use the following statistics from Robert Morris Associates' Annual Statement Studies to answer the following question(s). Net sales 100.0 percent Cost of sales 59.9 percent Gross profit 40.1 percent Operating expenses 31.2 percent Net profit (before taxes)
asked by kimberly 
geometry
find uw if vw is 5/8 inches
asked by brittany 
conversion problems
Im not sure how to convert these because of the cm cubed heres the question: An aluminum engine block has a volume of 4.88 L and a mass of 12.60 kg. What is the density of the aluminum in grams per cubic centimeter? so its gonna be something g/cm3 can you
asked by Hannah 
math
x/8 +x/3 = 9/8
asked by renee 
Algebra Help
It is estimated that each cigarette a person smokes shortens that person's life by the amount of time she or he took to smoke it plus ten minutes. Write an algebraic rule that determines the number of minutes (t) a person's life is shortened by smoking c
asked by Kendra 
math (A question for Reiny)
THANK YOU SO MUCH for the help with magic squares! But I have one quick question how can I show my work! I have to show my work or I receive like 1/2 credit.
asked by Anonymous 
5th grade
what are two goals of the system used to classify organisms
asked by jana 
Business communication
With increased market globalization, intercultural competence:
asked by Florence 
cytology
who is robert hooke
asked by roel 
algebra
2x+3=17:7.... i don't know what the 7 after the ; is
asked by nathan 
math
How much work (in Joules) is done when a force of 14 N (Newtons) moves an object 6 meters?
asked by Anonymous 
scientist
scientists do their experimentl tests more than onceto reduce the chance of error is called conducting?
asked by lilly 
math
x/7+x/8=8/7
asked by renee 
6th grade
the stepby step you follow when conducting an experiment is called what?
asked by lilly 
MATH
I AM 900 MORE THAN THE GREATEST POSSIBLE 4DIGIT EVEN NUMBER THAT CAN BE MADE USING THE GIGITS 1,4,2,5. WHA NUMBER AM I?
asked by DINORA 
grammar
In the sentence...Each bike has ten gears. is "has" the verb?
asked by Debbie 
scientist
a person who "does" science?
asked by lilly 
1st grade
Sam sees a shape. The shape has one face and is curved. What shape does Sam see?
asked by Anonymous 
math
probability... two dice are tossed.... and their sum is recorded ..find probability p ( sum is between 2 and 9)
asked by tana 
Geometry
I need to bisect two angles of a triangle, measure the triangle I didn't bisect, and then construct a point of intersection of the two angle bisectors. No idea what any of that means. thanks
asked by Lorenzo 
biology
is hypothesis accepted if can't be proven wrong?
asked by ruby 
English
Can you tell me what words are the infintive phrase and is it a noun, adj or adv? Is it To learn and it's a noun? To learn to count in three languages is my summer goal.
asked by Will 
public health
What is happening in the world today that can drastically affect public health? Not really sure where to begin on this one. If anyone could give me a neuron jump start, it would be greatly appreciated. thanks in advance, t.j.
asked by tammy 
arithmetic
(This homework question was removed due to a copyright claim submitted by k12.com.)
asked by Kaitlynn 
science
I have to correct the Internal diameter of 2 half round cast piece of aluminuim against the actual mandrel. Because after casting the pieces are open when cooling.i will use chain block to correct or tie the cast piece with the Mandrel. could you please
asked by sreedharan 
5th grade Math
Having problems with less than/greater than decimals. Wanted to double check some answers. a)0.5_1.0 My Answer is < b)3.2_3.02 My answer > c)4.83_4.8 My answer < d)6.25_6.4 My answer < e)0.7_0.07 My Answer >
asked by SK 
Algebra
Take any number (except for 1). Square that number and then subtract one. Divide by one less than your original number. Now subtract your original number. You reached 1 for an answer, didn’t you? How does this number game work? (Hint: Redo the number
asked by Spring 
high school algerbra class
(2/x^24)+(3/x^2)+(x6+1/x+3) someone please show me how to work this problem with the steps, so I can see if I can get it. This is due tomorrow in class. Thank you.
asked by kenneth 
Physics
Each of two runners at either end of a 1907 m straight track jogs toward the other at a constant 4.00 m/s. Suppose that a fly were to go back and forth, essentially without a pause, from one runner to the other at an average speed of 13 m/s. How far will
asked by Ryan 
COM 155
HAVE I DONE THIS CORRECTLY? Identify the topic sentence by underlining it. Identify the clincher by highlighting it. I HAVE USED CAPS INSTEAD OF UNDERLINE AND HIGHLIGHT IN MY CLASS, FOUNDATION OF PERSONAL FINANCE, I HAVE LEARNED THAT MANY POTENTIAL
asked by confused by adverbs and adjectives 
physics
Electronic flash units for cameras contain a capacitor for storing the energy used to produce the flash. In one such unit, the flash lasts for a time interval of 1.49×10−3 with an average light power output of 2.60×105 .
asked by Anonymous 
math
10^3 + 10^5 =
asked by anonymous 
math
whats the mean of 10,20,30,35,55 55+35+30+20+10=150 150 / 5 =3
asked by anonymous 
language arts
The rules require that each contestant make his or her own kite. What is the simple subject word?
asked by maya 
History
(1) Britain and the U.S abolished the slave trade in? Answer: 1807 (2) The threat to the mercantile colonial world included all of the following except? A. Slave revolt B. Independence movements C. The free trade lobby. D. Enlightenment universalism E. The
asked by Adesuwa 
CITY SCHOOL
useing these numbers: 25  7  8  5  4  3 make an equation so that the answer equals 828,but you can ONLY use those numbers. you cant add any more numbers and you cant repeat any of the numbers. you DON'T have to use all the numbers though
asked by NADIR 
English
What do you want to do if you have a lot of money? 1. I want to donate a large sum of money to a society for poor people. To die with money is a shame.] 2. I will go abroad to study English. I like to go to Harvard University, where I will major in
asked by rfvv 
math
the cicle of the circle below equal 24 centimeter what is the approimate radius? 24/3.14=8 8/2=4
asked by anonymous 
English
I appreciate your help. the second one is as follows. Question: What do you want to do if you earn/have a lot of money? 7. I want to learn a lot of things. First of all, I will learn how to swim from a swimming instructor. In the future, I can enjoy
asked by rfvv 
Chemistry
Please check this over and see of they are right...if they are not can you please tell the the right answer and explain how you got it. I think I am getting myself confused. Thank you. Write the neutralization reaction for each of the following. Balance
asked by Brittney 
physics
A unit of area often used in measuring land areas is the hectare, defined as 104 m2. An openpit coal mine consumes 72 hectares of land, down to a depth of 29 m, each year. What volume of earth, in cubic kilometers, is removed in this time?
asked by liz 
statistics
What is the value for for a 95% confidence interval for the sample variance when n=10?
asked by damian 
3rd grade
What if Ali only had tens and ones? How could she have modeled 624 without using hundreds?
asked by eryn 
english
is it as you sow so you shall reap or as you sow so shall you reap ?
asked by Anonymous 
math
mitchell has a jewerly box that has a volume of 324 cubic inches.the jewerly box is 9 inches long and 6 inches wide. how high is the jewelry box in inches. 9x6=54 324/54=4 inches
asked by anonymous 
ambiguity
Is he really that kind
asked by apple 
Math
If 3 points are collinear the solve for t (3,3) (t,1) (8,6)
asked by Abbie 
11th grade
According to Bohr model, what determines the color of light emitted when an electron moved from one energy level to another?
asked by christina 
8th grade math
i need help NOW: A leather coat costs a fashion store $150. THey will sell it for a 70% profit. Find the profit as a percentage of the selling price.
asked by charlotte 
math
gabriel went shopping at mall and spent 16.50 on socks 45.23 on shoes 45.23 on backpack. how much money did gabriel spend on these items? 16.50+65.95+45.23= 127.68
asked by anonymous 
geometry
can 4 point be collinear and if so how would I draw that
asked by Tate 
economics
HELP!!!!! One and only Inc is a monopolist. The demand function for its product is estimated to be Q=600.4P +6Y+2A Y=3,000 P=Price per Unit Y=Per capita disposable personal income (thousands of dollars) A=hundreds of dollars of advertising expenses The
asked by Christina 
math word problem
Here's the latest from the UMW math department: Andy drove from Richmond to Boston at an average speed of 50 miles per hour. If it took 5 hours to drive from Richmond to Philadelphia at an average speed of 70 miles per hour and if the whole trip took 13
asked by M.A. 
algebra 1 honors
it says simplify each expression. justify each step. 1. (2 + 7m) + 5 2. 9 x (r x 21)
asked by stephanie 
math
what does a scale factor represent ?
asked by Bob lee 
algebra
can you please show me how to do this? Determine whether the ordered pair is a solution of the inequality. y>x^2 5x (2,3)
asked by Tyriq 
math
12x^2=3x
asked by kelly 
Algebra
how do i solve this problem? a= 3 b=7 c=10 d=11 ab/cd = (ab)/(cd) = ab/(cd) = a(b/cd) =
asked by Jill 
science
imagine you are in a spaceship flying from the earth  describe what you see from the space and how you feel as it moves out of the gravitation pull of earth?
asked by sarthak 
science
imagine you are in a spaceship flying from the earth  describe what you see from the space and how you feel as it moves out of the gravitation pull of earth?
asked by sarthak 
social studies
please help me fill these out i accidently left my s.s boo in my locker :/ by 1860 the united states had thousands of miles of telegraph lines, mostly controlled by the ______. in 1866 ______ managed to lay a telegraph cable across the _______, making it
asked by nichole 
Chemistry
I have 1ml of 0.1M potassium iodide, what is the mole fraction of iodide ion?
asked by Peaceeey 
Science
How Does Earth's atmosphere make conditions on Earth suitable for living things?
asked by sue 
Chemistry
I have 1ml of 0.1M potassium iodide, what is the mole fraction of iodide ion?
asked by Peaceeey 
statistics
. A statistician needs to survey a sample of 50 people that is representative of voters in his community. He prepared a list of phone numbers of 50 randomly selected, expected voters. Next morning, he came to work at 8:00 and began to make calls. By 11:00
asked by sylvia 
History
Question 1 In 1907, in order to balance the Triple Alliance, the Triple Entente was formed by Answer (A)Italy, France, and Britain. (B)France, Russia, and Britain. (c) France, Russia, and Germany. (D)Russia, Britain, and the United States. (E)Britain, the
asked by Adesuwa 
1st grade
Point value of a hexagon is six. trapezoid is 3. triangle is 1. Rhombus is 2. my homework says, shape, number and total. what do I do? thanks.
asked by Julie 
Chemistry
How would I solve this: The atomic mass of 6/3Li and 7/3Li are 6.0151 amu and 7.0160 amu, respectively. Calculate the natural abundances of these 2 isotopes. The average atomic mass of Li is 6.941. All I know is how to get the atomic mass and not the
asked by Amy~ 
algebra
(1/t1)(1/t+2)
asked by Bob 
chemisry
2NaHCO3  Na2CO3 + H2O + CO2 2Fe + 6 HCl  2 FeCl3 + 3H2 2HBr + Ca(OH)2  CaBr2 + 2H2O N2 + 3H  2NH3 2H2O  2H2O + O is this a redox ? what is oxidized, reduced
asked by Kelsey 
4th Grade Math
64*15 divided by 56 rounded by precentage ( % 's ) help please urgent!!!
asked by Kristopherson 
accounting
is the 5question approach to ethical decision making superior to the moral standards or pastin approach
asked by Leona 
chemisry
I am having problems with this redox question. 3 Ag2S + 2Al 6 Ag + Al2S3 What are the charges on each;
asked by Kelsey 
real estate investment
You are considering purchasing a 12,000 square feet (4,000 sf. per floor), three story office building for $1,250,000 with closing to be on May 12. The top and bottom floors are preleased for $24 per sq, ft. annually and the middle floor for $20 annually.
asked by chrystal 
8th grade math
how 8 over 6 to its lowest from
asked by tarr 
Child Psychology
Joe, a high school junior, is considering a career in medicine but he's unsure if he wants to commit himself to several more years of schooling. with whom is he most likely to consult with on this issue? A. Best friend B. Girlfriend C. Parents D. Guidance
asked by Anonymous 
physics
does current flows from high potential to low potential since it flows from positive terminal to negative terminal
asked by blasting 
math
what is the standard form and the expanded form 0f 20 and 7 thousands
asked by Zeb 
chemisry
Two half cells in a galvanic cell consist of one iron electroide in a solution of iron sulphate and a silver electrode in a silver nitrate solution a) Assume that the cell is operating as a galvanic cell. State the oxidation half reaction, the reduction
asked by Kelsey 
Medical Terminology
What are two example of how knowing medical terminology will help you provide good patient care?
asked by Elizabeth 
History
1) Describe how the Cold War ideology that crystallized after WWII changed wartime alliances that had existed during the war. 2) Describe how American Cold War policies and practices influenced international relations from the late 1940s to the mid1950s.
asked by Lorraine 
11th grade
You are traveling at a rate of 50 m/s. If you accelerate at a rate of 15 m/s2, what will be your velocity after 3 seconds?
asked by Syeda 
History
How did McCarthyism affect the lives and political thinking of people in the U.S.
asked by Lorraine 
pre algebra
X/7  4 = 2
asked by kaileigh 
physics
A very narrow beam of white light is incident at 40.40° onto the top surface of a rectangular block of flint glass 11.8 cm thick. The indices of refraction of the glass for red and violet light are 1.637 and 1.671, respectively. Calculate the dispersion
asked by rudi 
9th grade
A person standing on Mars would weigh 38% of his earth weight. What is the Mars weight of a person with an earth weight of 55 kilograms?
asked by Isabelle 
Algebra
It is estimated that each cigarette a person smokes shortens that person's life by the amount of time she or he took to smoke it plus ten minutes. Write an algebraic rule that determines the number of minutes (t) a person's life is shortened by smoking c
asked by Kendra 
Math
Solve the inequality. (x1)>2(x+1/2) I don't understand how the answer is 0.
asked by Heather 
science
Cool air moving to take the place of warm, rising air is also known as _____.
asked by carl bennett 
English
What is the proper name used when using improper words. ie rootin' tootin'?
asked by Emma 
science
The chemical substance found in the atmosphere exists as a / an______.
asked by carl bennett 
Algebra II
Use the coordinates to write a prediction equation. (9,17) (4,10) (3,10) (1,7) (10,19) (6,12) (12,20) (8,15)
asked by Syd 
science
conducting is what a scientist does to reduce effegts of chance errors
asked by lilly 
trig
when finding consecutive odd integers why would you use n, n+2 and n2 rather than n, n+2 and n+4
asked by lindsey 
math
The width of a rectangle is 6 cm less than the length. A second rectangle, with a perimeter of 54 cm, is 3 cm wider and 2 cm shorter than the first. What are the dimensions of each rectangle. Please give complete answer :)
asked by Jade 
Physics  Momentum
Define momentum qualitatively and quanititatively. (qualitatively  a measure of an object's mass to resist changes in its velocity or acceleration. Is this correct? How do I define momentum quantitatively)
asked by Shaila 
Physics  Momentum
Try to imagine a situation in which the form f=ma would no apply, but the form f=delta p / delta t could be used. Describe that situation. How could you test your prediction.
asked by Shaila 
english
please send me some house expressions, dance and song expressions and their meanings
asked by theanmozhyi 
arithmetic
An auditorium has 20 rows of seats.These are 20 seats in the first row,21 in the second row and 22 in the third row and so on.how many seats are there in all rows?
asked by Samuel 
precalc
Write a formula for converting a measure of degrees in degrees, minutes, and seconds to a decimal number of degrees. The formula should convert, for example, 39º 5’ 34” to 39.093º. The model includes the assumption that a full degree equals 60
asked by Anonymous 
Physics  Applications of Momentum
Use the concept of impulse to explain the difference in the results of a jump using a proper bungee cord and a jump using ordinary rope. (Ans: Is it that impulse is equal to mVf  mVi and the final velocity will be zero for the ordinary rope, however when
asked by Shaila 
mat115
can someone help me with this math question. I am asked to show my work but I don't know how to do so. The question is: The following set of numbers a perfect triple? 8, 10, 12 yes or now and how so? Thanks for your help.
asked by adore001 
math
find the difference in degrees of longitude between chicago at about 88W and rome at about 12E
asked by Sara 
Math Check
Solve the inequality. So i have done this problem at least three times and I keep getting the same answer. But in the back of the book the correct answer for this problem is x
asked by Heather 
Biology
Should humans strive to preserve a representative sample of all biomes or aquatic zones?
asked by Terra 
math
write an example of the associative proerty of addition.
asked by cj 
biology
For each of the following listed below, explain how it enhances the plants ability to survive and reproduce in a terrestrial environment. B) Pollen C) Waxy cuticle
asked by christine 
childcare
A. cost B. height C. funishing materials D. surface materials (My answer is C) Please help
asked by action 
Chemisty (Sig Figs)
1.20 Mm to kilometers its 1200 but when I put it in it said not the correct number of sig figs
asked by Rebekah 
6th grade vocabulary
how do you bild a quote using a web circle and why does the four words needed must have ing, ation,able,and mis in them?
asked by robert 
8th grade math
a bank contains 35 nickels, dimes, and quarters. There are four more dimes than quarters and twice as many nickels as quarters. How many of each coins are in the bank?
asked by Toph 
world history
what is the northermost waterway that bounded the mesopotamia region
asked by Anonymous 
physics
compared to the period of a wave of red light the period of green light is... A)less B)greater C)the same D)none of the above
asked by help!!! 
statistics
The standard deviation of a distribution is 28. If a sample of 289 is selected, what is the standard error of the mean?
asked by damian 
math
identify the equation of the line through (7, 10) and horizontal
asked by ashly 
chemistry
how would you prepare 1L of a .5M solution of each of the following? Sodium carbonate from the pure solid
asked by kelly 
CHEMISTRY
Assuming the density of a 5% acetic acid solution is 1.0 g/mL,determine the volume of the acetic acid solution necessary toneutralize 25.0 mL of 0.10M NaOH.
asked by Jeffrey 
Algebra ...Please check this to see if I am corect
For the following equation, state the value of the discriminant and then describe the nature of the solutions. 6x^23x+2=0 I came up with the value of the discriminant as 35. Then I came up with it has two real solutions. Is this correct?
asked by MBK 
math
drove from rich to boston at avg speed of 50 mph,if it took 5 hrs to drive from rich to phila at an avg speed of 70 mph and if the whole trip took 13 hrs how far is it from phila to boston?
asked by Bob