Questions Asked on
November 6, 2009

math
The London Eye is a large ferris wheel. Each sealed and airconditioned passenger capsule holds about 25 passengers. The diameter of the wheel is 135 m, and the wheel takes about half an hour to complete one revolution. a) Determine the exact angle, in

chemistry
What mass of solid aluminum hydroxide can be produced when 50.0 mL of 0.200M Al(No3)3 is added to 200 Ml of a 0.100M KoH

chemistry
What mass of solid aluminum hydroxide can be produced when 50.0 mL of 0.200M Al(No3)3 is added to 200 Ml of a 0.100M KoH

college
The arm in the figure below weighs 44.5 N. The force of gravity acting on the arm acts through point A. Determine the magnitudes of the tension force t in the deltoid muscle and the force s of the shoulder on the humerus (upperarm bone) to hold the arm in

chemistry
A process which is unfavorable with respect to enthalpy, but favorable with respect to entrophy a)could occur at high temperatures, but not at lower temperatures b)could not occur regardless of temperature c)could occur at any temperature d)could occur at

math (word problem)
In 1994, the life expectancy of males in a certain country was 65.7 years. In 2000, it was 69.0 years. Let E represent the life expectancy in year t and let t represent the number of years since 1994 the linear function E(t) that fits the data is E(t)=?t+?

Heat of Formation
When 10.00 g of iron is burned in O2(g)to form Fe3O4 (s) , enough heat is generated to raise the temperature of 784 g of water from 18.0 C to 38.0 C. Calculate the heat of formation of Fe3O4 (s) under these conditions in kJ/mol.

math
A salesperson bought a caase of pens.On Monday, he sold 1/2 of the pens.On Tuesady, he sold 30 more.On Wednesday, he sold 1/3 of the pens that were left.On Thursday, he sold the remaining 40 pens.How many pens were originally in the case,

math
a true or false test has 5 questions. what is the probability of guessing exactly four out of the five answers correstly.

Chem
How many moles of ions are released when this sample is dissolved in water? 3.55*10^18 formula units of Ba(OH)2*8H2O? So far I know to divide this by avogadro's number (/6.022*10^23) which equals .590*10^5 mol. Don't know what to do from here. Please

pre algebra
Write rules for using absolute value to compare two integers. BE sure to take all of the possible combinations in to account. __ I don't know what to write?

physics
A barge with mass 1.0×105 kg is proceeding down river at 5.8 m/s in heavy fog when it collides broadside with a barge heading directly across the river (see the figure). The second barge has mass 2.58×105 kg and was moving at 4.2 m/s. Immediately after

SCIENCE/MATH
Land growing continuous grain corn as a cash crop loses soil at a rate of 14.0 metric tonnes ha1 yr1. This is a fertile soil, which has an organic matter content of 3.8% and nitrogen content of 0.35% (both by mass). a)Calculate how long it will take to

11th grade
The students of litchfield High school are in grades 9,10,11,12. Of the students , 1/4th are in 9th grade, 1/3rd are in 10th grade, 1/6th is in 11th grade and there are 300 in the 12th grade, how many students are there all together?

Physics
If a 40 kg brick and a 400 kg brick each dropped from 1 m above a trampoline, find the lowest position of each brick. Assume the trampoline is a simple spring obeying Hooke's law with a k value of 12 000 N/m. So, I used mg(h+x)=1/2 k x^2 then solved for x

Literature
4. The term 'point of view' refers to the way the writer has chosen to a. create conflict b. present dialogue c. express an opinion d. tell a story B or D... 7. The theme of a story a. announces the topic in one or two words b. is stated directly in the

Physics
If a 40 kg brick and a 400 kg brick each dropped from 1 m above a trampoline, find the lowest position of each brick. Assume the trampoline is a simple spring obeying Hooke's law with a k value of 12 000 N/m. So, I used mg(h+x)=1/2 k x^2 then solved for x

math
suppose a license plate contains 4 digits.the probability of plate number having an even or an odd digit is the same.what is the probabilty of having a license plate with all even digits.

Chemistry
How will the volume of a fixed sample of gas change if its pressure is doubled and the Kelvin temperature is doubled? a)the change cannot be determined without more specific information b)it will decrease by a factor of 2 c)it will increase by a factor of

Chemistry
Gas particles travel at speeds of up to 500 m/s. Why, then, does it take so long for gas molecules to travel the length of a room? My answer would be that the molecules still have a weak attraction to each other and, in addition, the friction of the

Science
what is the silica content of magma that has low velocity

Science
what is the silica content of magma that has low velocity

Science
why does high silica magma tend to form volcanic domes with steep sides

math
Suppose you are in the market for a new home and are interested in a new housing community under construction in a different city. a)The sales representative informs you that there are two floor plans still available, and that there are a total of 56

Economics
Suppose that the objective of a union is to maximize the total dues paid to the union by its membership. Explain the union strategy, in terms of the wage level and employment level, under the following two scenarios. a)Union dues are a percentage of total

chemistry help!
A mixture contained CaCO3 and MgCo3. A sample of this mixture weighing 7.85g was reacted with excess HCl. The reactions are CaCO3 + 2HCl > CaCl2 + H2O + CO2 MgCO3 + 2HCl > MgCl2 + H2O + CO2 Is the sample reacted completely and produced 1.94L of CO2,

Economics
Suppose that a nation has implemented a system for applying a tax rate of 2 percent to the incomes earned by the 10 percent of its residents with the highest income. All funds collected are then transferred directly to the 10 percent of the nation's

science
what is the connection between native americans and federal government

Writing
Someone plz give me interesting topics for argumentative essay

Physics
A rollercoaster car starts at rest on top of a frictionless hill of height 17 m, slides down to ground level, and then into a frictionless loop of radius 5 m. When the car is at the side of the loop (level with the center), find the magnitude of the car's

Chemistry
A 500.0mL sodium iodide (NaI) solution was prepared by dissolving 37.7g of solid NaI in water. Chlorine gas was bubbled through a 100.0mL sample of this solution until the reaction was complete. How many grams of molecular iodine were produced?

chemistry
How many mililmeters(mL) are in a sample with 2.0L?

ela
what would you do if you woke up one morning and it is raining chocolate pudding, who would you tell, what would happen when you meet your friends?

biology
can SCIATIC PAIN be ..cured? if yes..then forever or for sometime?

math
1) a company manufactures and sells a specialty watch. the financial reserach department detemines that at the price of $88 each, the demand would be 2,000 watches and at $38 each the demand will be 12,000 watches. A) assuming a linear relationship between

math (word problem) last one
The equation y=1777x+27,152 can be used to predict the number of y of gun deaths in the U.S. x years after 2000, that is x=0 corresponds to 2000, x=3 corresponds to 2003, x=4 corresponds to 2004 and so on. Predict the number of gun deaths in 2004 and

math
You buy a belt for $10 and some socks.Each pair of socks cost $3.The total shipping cost $3.What is the total cost if you buy 11 pairs of socks

MathAnswer included
{9, 7, 13, 24, 32, 45, 47} First you have to find the mean The mean is 9+7+13+24+32+45+47=177/7=25.2857=25.29 Find the standard deviation for the given data. Round your answer to one more decimal place than the original data. {9, 7, 13, 24, 32, 45, 47}

history
describe the two ways america's fight for independence influenced other countries?

college physics
A cook holds a 1.90 kg carton of milk at arm's length. What force B must be exerted by the biceps muscle?

literacy
i need to know which country these words came from caravan,yoghurt,sofa,dessert and shampoo

History
What was the Oregon Trail?

English
I have been asked to write a synthesis essay. I have never written this type of essay before. This is my first rough draft, I am just looking to see if I have the right approach etc. Thanks! Passion vs. Logic: Immigration Reform One of the most polarizing

chemistry
How will the volume of a fixed sample of gas change if its pressure is doubled and the Kelvin temperature is doubled? a)the change cannot be determined without more specific information b)it will decrease by a factor of 2 c)it will increase by a factor of

math
The London Eye is a large ferris wheel. Each sealed and airconditioned passenger capsule holds about 25 passengers. The diameter of the wheel is 135 m, and the wheel takes about half an hour to complete one revolution. a) Determine the exact angle, in

Chemistry
Consider a sample of helium and a sample of neon, both at 30ºC and 1.5atm. Both samples have a volume of 5.0 liters. Which statement concerning these samples is not true? a each weighs the same amount b each has the same # of atoms of gas c the density

math
a dog owner has 200ft of fencing and wants to enclose the greatest possible rectangular area for her dog .what dimension should she use

physics
Ricardo, mass 88 kg and Carmelita, who is lighter, are enjoying Lake Merced at dusk in a 30 kg canoe. When the canoe is at rest in the placid water, they exchange seats, which are 3.0 m apart and symmetrically located with respect to the center of the

english
what does the prefix etym mean

physics
A bullet of mass 8.0 g is fired horizontally into a 2.2 kg wooden block at rest on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.40. The bullet comes to rest in the block, which moves 2.30 m. (a) What is the speed

Calculus
f(x) = [3/x^2]  [5/x^7], F(x) is the antiderivative of f(x) with F(1)=0. F(x) = ? I have no idea how to approach this problem. The fractions are scaring me.

Chemistry
Consider a sample of helium and a sample of neon, both at 30ºC and 1.5atm. Both samples have a volume of 5.0 liters. Which statement concerning these samples is not true? a each weighs the same amount b each has the same # of atoms of gas c the density

math
start with 1, multiply by 2. then multiply the result by 3.then continue to alternate multiplying by 2 and by 3.what is the ones digit after the twelfth multiplication

math
your aunt is building a garden in her backyard.she has 90ft of fencing to surroud it.if she wants the lenght to be 15 ft onger than the width , what should the dimensions of her garden be

math
your cat is expecting a litter of kitten.suppose the probability of a male kitten is 1/2.what is the probabilty that a litter of five kittens contain all made kittens

math
your cat is expecting a litter of kitten.suppose the probability of a male kitten is 1/2.what is the probabilty that a litter of five kittens contain all made kittens

math
your cat is expecting a litter of kitten.suppose the probability of a male kitten is 1/2.what is the probabilty that a litter of five kittens contain all male kittens

science
Can someone please tell me when a chromosome is a chromosome and when it is called a chromatid. For ex/ after anaphase the chromatids are now each called a chromosome,etc

chemistry
How do you figure out the molecular weight?

COM/220
Below the instructions and the script are my responses. could someone take a look and see if they seem so be correct? Write a minimum 500word response to the following: 1. Identify and explain at least 2 specific examples of bias in the speech. 2.

Statistical Application
What are the major differences between practical and statistical significance?

chemistry
Could someone explain dipoledipole forces for me?

health 230
summarize health technologies

math
1.Explain why there is no number that can replace N to make the equation n = 1 true. 2. List the integers that can replace N to make the statement 8 < n < 5 true. I don't really get what am I supposed to do?

health 230
summarize health communication technologies

physics
Upon its return voyage from a space mission, the spacecraft has a velocity of 24000km/h at point A, which is 7000km from the center of the earth. Determine the velocity of the spacecraft when it reaches point B, which is 6500km from the center of the

math
y=16+x, for x

Math
Create a polynomial of degree 3 that has xint at 1, 1, 3

math
When a pilot banks an aircraft moving at a speed, v, in metres per second, at an angle a, the radius of the turn that results is given by the formula: r = v^2/g * tan(pi/2  a) where g is the accelatation due to gravity, or 9.8 m/s^2. Use an appropriate

Math
At a quality control checkpoint on a manufacturing assembly line, 8% of the items failed check A, 10% failed check B, and 2% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a product

History
For our research paper we have to use one primary site. Which means the website must end in edu or whatever. Do you know one for the Jacksonian Era.

Math
At a quality control checkpoint on a manufacturing assembly line, 8% of the items failed check A, 10% failed check B, and 2% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a product

Math
At a quality control checkpoint on a manufacturing assembly line, 8% of the items failed check A, 10% failed check B, and 2% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a product

programming
How would one write a short structured design for loading a truck? phseudocode only that accomplishes this task. I am now failing this class so if anyone can help please do!!

math
Suppose you are in the market for a new home and are interested in a new housing community under construction in a different city. a)The sales representative informs you that there are two floor plans still available, and that there are a total of 56

Socials
Napoleon told the Africans of Haiti that he understood their plight. Did he? Explain No,he did not understand their problem because if he had, then he would have put an end to the slavedom they were living in, right away. Napoleon just used the Africans

5th grade
matt ran 1/5 mile less on monday than on tuesday. he ran 1/2 mile less on wednesday than he did on monday. he ran 7/10 mile more on friday than on wednesday. if matt ran 4/5 mile on friday, how far did he run on tuesday? stumped, please help!

Science
how is a caldera formed

algebra
Write an equation that shows the relationship between the quantities; the total cost of hiring a certain plumber is a flat rate of $35 plus $9.50/hr.

Socials
Before the uprising in Haiti, would Europeans have believed that a slave revolt on this scale was possible? Why or Why not? I think yes, because well a similar thing happened in France as well, so from that they must have got a clue that they may also face

calculus
Alright so implicit differentiation is just not working out for me. Use implicit differentiation to find the slope of the tangent line to the curve at point (4,1). y / (x2y) = x^3 + 4 Tried quotient rule to get the derivative of the left side, then got

chemistry
How do it geth the equation for 50.0 grams of iron(II)carbonate react completely with hydrochloric acid how many grams of carbon dioxide gas may be produced?

Medical Transcription
What is the main difference between a stem cell and a cancer cell?

math
a)The sales representative tells you they also have two floor plans available, but they only have 38 homes available. Write an equation that illustrates the situation. Use x and y to denote floor plan #1 and floor plan #2 respectively. b)The representative

psychology
What are some of the characteristics of a Type A personality? How might having a Type A personality affect a person’s reaction to stress? What would you view as some advantages or disadvantages of a Type A personality?

Socials
What was the purpose of the continental system? Did it succeed or fail? Imagine that you are a memo outlining the advantages and disadvantages of disrupting Britain's trade with Europe. Your memo should examine the impact of such a move from the standpoint

calculus
How long will it take an investment to triple in value if the interest rate is 4% compounded continuously? i know its set up as 3x=x(e^rt) but im confused as what to do nxt

History
How did human history in North America during the period described in the Prologue differ from the events of Asia, Eurasia,

calculus
How long will it take an investment to triple in value if the interest rate is 4% compounded continuously? i know its set up as 3x=x(e^rt) but im confused as what to do nxt

Extra information
What if Canada and the united states no longer traded goods and services, what do u think wud happen?

Social studies
Write the kind of pamphlet against the government of Charles I that you imagine walter prynne might have written. It doesn't say anything about walter prynne in my book, the homework is due tomorrow,can someone summerizes the information about him to

Spanish
Can someone please check my work? Gazpacho Es un sopa frío y refrescante de Andalucía. Es hizo con tomates, pepinos, pimientos y ajo. Tortilla Española Ingredientes incluya patatas, cebollas y huevos. ¡Es la comida perfecto si necesites un desayuno

physics
Four identical masses of 2.6 kg each are located at the corners of a square with 1.5 m sides. What is the net force on any one of the masses?

psy
What is the difference between emotional effects and cognitive effects? Give least 2 examples of emotional effects this stressor might produce

math
3(2x7)12+10x=

Art
My class and I have done this diorama for a art project, and to do it we chose the movie twilight. We all had to pick different scenes, and I chose the treetop scene. I need help on my statement for it. This is what i have so far: This is the scene where

physics
At what displacement from the equilibrium is the total energy of a simple harmonic oscillator one  sixths KE and five  sixth PE? Answer should be in terms of the amplitude A.

English
The epic "Paradise Lost" suggests that the culture that produced it is a/an: a. christian culture that believes in Heaven and Hell. b. unforgiving culture. c. culture full of traditions. d. culture of hopelessness

History 1301
How did human history in North America during the period described in the Prologue differ from the events of Asia, Eurasia, and Europe? Be specific. How were these differences important to the international state of affairs in 1450?

physics
A 3.60 kg ball is dropped from the roof of a building 184.8 m high. While the ball is falling to earth, a horizontal wind exerts a constant force of 12.1 N on the ball. How long does it take to hit the ground? (acceleration of gravity = 9.81 m/s^2)

C Programming
I am trying to find the sum of two integers. I entered the following program into the Visual Studio and it is telling me that there are errors. Can someone tell me where they are please? #include int main( void ) { int integer1; int integer2; int sum;

9th grade
how to unscramble colors from words?????

art
what color is LARMENDEGREE when you unscramble it??

Calculus
A rancher wants to fence in an area of 500000 square feet in a rectangular field and then divide it in half with a fence down the middle, parallel to one side. What is the shortest length of fence that the rancher can use?

art
what color is DMREAD when you unscramble it??

Calculus
The circumference of a sphere was measured to be cm with a possible error of cm. Use linear approximation to estimate the maximum error in the calculated surface area.

art
what color is ICRAMMEDDU when you unscramble it???????

Calculus
The circumference of a sphere was measured to be 74 cm with a possible error of 0.5 cm. Use linear approximation to estimate the maximum error in the calculated surface area.

art
what word is CABLERULEUNE WHEN U UNSCRAMBLE IT???

Physics
This is a four part question, I need help with the fourth part. 1. I found the Gravitational Potential Energy of a gymnast at her maximum height above a trampoline to be 400J. 2. I found the Kinetic Energy of her just before she makes contact with the

Physics
If a 40 kg brick and a 400 kg brick each dropped from 1 m above a trampoline, find the lowest position of each brick. Assume the trampoline is a simple spring obeying Hooke's law with a k value of 12 000 N/m. I know i must use Fs= kx, but where do I start?

Office Finance
Each day's receipts can be kept separate by, a.preparing a deposit slip for each day's receipts, b. reconciling the bank statement c.listing the ABA numbers d.making daily bank withdrawals

11th grade
Hello there i am writing a book and i would like to know how many subjects does an eleventh grader have per day. please reply as soon as possible. thank you very much. P.S: This question is meant to be answered by an american individual due to various

al faisal international school
how to make a good sentence of the word(wheeled)

math115
is the following set of numbers a perfect triple? 13, 15, 18

Humanities
Give me some ideas on an individual or group of individuals who have continued to pursue liberty and happiness in the twentieth century or beyond.

Math: PreCalc
A right triangle has hypotenuse 5 inches long. Its area is 4 square inches. How long are the other sides?

math
what is 12/3

Chemistry
Predict the product(s) and write a balanced equation for the following redox reaction: pentane (C5H12) + oxygen >

math algebra
Trains A and B are traveling the same direction on parallel tracks. Train A is traveling at 100 mph and train B is traveling 110 mph. Train A passes a station at 6:10 A.M. If train B passes the same station at 6:40 A.M. at what time will train B catch up

physics
what is the physics principle behind fiber optics??

physics
a body is slided through an inclined plane frm a building.If angle of slope is 30 degree and the distance covered aslong the slope is 100m find the height of building

math
What is the slope of the line perpendicular to the line whose equation is y= 2/3x5?

math
1) a company manufactures and sells a specialty watch. the financial reserach department detemines that at the price of $88 each, the demand would be 2,000 watches and at $38 each the demand will be 12,000 watches. A) assuming a linear relationship between

math algebra
The equation y=1777x+27,152 can be used to predict the number of y of gun deaths in the U.S. x years after 2000, that is x=0 corresponds to 2000, x=3 corresponds to 2003, x=4 corresponds to 2004 and so on. Predict the number of gun deaths in 2004 and

math algebra
im not good with fractions when you have to graph them ........ graph the equation using the slope and the yintercept. Y=5/3x+7