Questions Asked on
November 21, 2010

world history
what is the process of ice fishing in the colonial times
asked by Maria 
Math
i have a question regarding statistics. i just don't know how to do it and would really appreciate if someone could tell how i can solve it. the question is; a) compute the mean and the standard deviation of the population? ive looked through all my notes
asked by ash 
physics HELP
a 18.0kg sled being pulled across horizontal surface at constant velocity. pulling force has magnitude of 82.0N and is directed at angle of 30 degree above horizontal. determine coefficient of kinetic friction
asked by hy 
physics
a rocket of mass of 450000kg is in flight. its thrust is directed at angle of 62.5 degree above horizantal n has magnitude of 6000000 N. find the magnitude and direction of rockets acceleration. give direction as an angle above horizontal
asked by hy 
statistics
what is random sampling and why is it important to statistical inference with reference to representativeness and error?
asked by ash 
statistics
what is sampling distribution and sampling distribution of means?
asked by ash 
statistics
what is meant by the standard error of a statistic? what is it an index of? what is meant by the standard error of the mean? what it is an index of?
asked by ash 
IT
4. Modify the program of Problem 3 so that it also computes and displays the employee’s net pay. Net pay is gross pay minus deductions. Assume that deductions are taken for tax withholding (30% of gross pay) and parking ($10 per month).
asked by F COOPER 
PROGRAMMING PROBLEMS
4. Modify the program of Problem 3 so that it also computes and displays the employee’s net pay. Net pay is gross pay minus deductions. Assume that deductions are taken for tax withholding (30% of gross pay) and parking ($10 per month).
asked by F COOPER 
Limiting reagent
If 270. mL of 0.08089 M aqueous Pb(NO3)2 and 710. mL of 0.05493 M aqueous Na+ are reacted stoichiometrically according to the equation, what mass (g) of Na+ remained? Pb(NO3)2(aq) + 2 NaI(aq) → PbI2(s) + 2 NaNO3(aq)
asked by Confused 
chemistry
If 0.0490 mol of solid CaCO3 and 380 mL of 0.135 M aqueous H2SO4 are reacted, what volume (L) of gaseous CO2 measured at 1.1 atm pressure and 301 K is produced. H2SO4(aq) + CaCO3(s) → CO2(g) + CaSO4(s) + H2O(l)
asked by Confused 
AP Physics
A basketball player makes a jump shot. The 0.700kg ball is released at a height of 2.00 m above the floor with a speed of 7.70 m/s. The ball goes through the net 3.00 m above the floor at a speed of 3.10 m/s. What is the work done on the ball by air
asked by Sierra 
college
I have to write a "journal article reviews" for Medical Law & Ethics. I have some articles already but don't know how to start it. thanks
asked by Mary 
physics Helppp
3 mass are collienear formation A, B, C massA is 363 kg and is .5m away from mass B (517 kg)and mass B is .25m away from mass C (154kg) Find the magnitude and direction of the net gravitational force acting on each of the three particles (let the direction
asked by hy 
physic
The drawing (not to scale) shows one alignment of the sun, earth, and moon. The gravitational force SM that the sun exerts on the moon is perpendicular to the force EM that the earth exerts on the moon. The masses are: mass of sun = 1.99 1030 kg, mass of
asked by hy 
physics asap
Two fan carts with different fan speeds and different accelerations are started from rest some distance from one another. Cart A begins at position 0 with a velocity of zero and an acceleration of aA to the right. Cart B begins at position xB with a
asked by cherin 
physics
A 200 g ball is lifted upward on a string. It goes from rest to a speed of 2.0 m/s in a distance of 1.0 m. What is the tension in the string?
asked by nona 
statistics
proportion between 45 and 78
asked by Anonymous 
Math
Using the digits 0, 2,3 ,4 5, 6 make the largest 4 digit in terms of value that you can.
asked by Martha 
physics
a 82.7 kg ice skater is moving at 5.88 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. she then moves in a circle of radius 0.627 m around the pole. the acceleration of gravity is 9.8 m/s^2. Find the force exerted
asked by vanessa 
physics
an amusement park ride consists of a rotating circular platform 7.4 m in diameter from which 10 kg seats are suspended at the end of 1.81 m massless chains. when the system rotates, the chains make an angle of 26.6 degree with the vertical. the
asked by vanessa 
Math
A father's age is 3 times his son's age. Sum of their ages is 44 years. Find their ages.
asked by Ruquaya 
physics
a race car travels 22 m/s around a circular track of radius 142 m/ what is magnitude of the resultant force on the 1400 kg driver answer his car? answer in units of kN. the angle from the wheel to the horizontal is 32 degree..and u= .11
asked by vanessa 
Chemistry
John has 300 mL of 0.65 M NaCl solution. Mary has 500 mL of 0.35 M solution. What is the concentration of the solution if they pour them together
asked by Tracy 
Physics
A 3.5 kg body accelerates from rest to 20 m/s in 5 s. Calculate: A its acceleration B the force required.
asked by Claire 
physic
The acceleration due to gravity of mars is 3.7 m/s2. An astronautto throw a tennis ball 70 m upward on mars. How high will he able to throw it on the earth?
asked by icasem 
acid and base titrations
25.00 mL of a solution of HCL was titrated with 0.4500 M NaOH using the indicator bromthymol blue. Successice readings of the burette gave the following data: colour: Volume of NaOH (mL)= i.) 16.35 yellow ii.) 16.40 yellow iii.) 16.45 green iv.) 16.50 blue
asked by jj reddick 
acid and base titrations
Which of the following solutions should be used when titrating a 25.00mL sample of CH3COOH that is approximately 0.1 M? a.) 0.150 M NaOH b.) 0.001 M NaOH c.) 3.00 M NaOH d.) 6.00 M NaOH
asked by jj reddick 
science
i want help for krutisanshodhan
asked by ahubhangi 
Phisycs
Lake Point Tower in Chicago is the tallest apartment building in the United States (although not the tallest building in which there are apartments).Suppose you take the elevator from street level to the roof of the building.The elevator moves almost the
asked by Sonny 
EDU310
specific cases and laws that have evolved or have had an impact on U.S education
asked by Anonymous 
math
Assume that water lilies double in area every 24 hours. In the spring, there is one water lily on a lake. After thirty days, the lake is completely (100%) covered with water lilies. How many days did it take for lilies to cover 25% of the lake?
asked by Max 
math
If you pour 500,000 cubic centimeters of water in a barrel that was already holding 300 liters of water, how much total water would be in the barrel?
asked by Max 
economics
Describe the equilibrium using graphs for the entire market and for an individual producer.Now suppose that textile producers in other countries are willing to sell large quantities of cloth in the United States for only $25 per unit.
asked by ankit 
economics
Describe the equilibrium using graphs for the entire market and for an individual producer.Now suppose that textile producers in other countries are willing to sell large quantities of cloth in the United States for only $25 per unit.
asked by ankit 
physics
A firetruck is traveling at a velocity of +20 m/s in the x direction. As the truck passes x=63m it shoots a tennis ball backwards with a speed of 20 m/s relative to the truck at an angle of 39° from a height of 1.4 m. Neglect air resistance. At what x
asked by sandhu 
physics
a piece pf ice floats in water.what will happen to the water level when the ice melts completely?
asked by sanjeet 
physics
a steel rod when measured with a zinc scale both being at 25 degree Celsius appear to be one meter long.if the zinc scale is correct at 0 degree Celsius, what is the actual length of the rod at 0 degree Celsius? [linear expansivity of steel=12*10^6
asked by sanjeet 
algebra
(6*5)/3 is this a true sentence
asked by j 
English, Scarlet Letter
Heya, i am supposed to come up with a thesis for my scarlet letter essay that i am doing for my higher level english class, and i want to do it one the hypocrisy and how the church and the religious authority and beliefs characterize it throughout the
asked by Anonymous 
Asia
A BRIEF DESCRIPTION ABOUT ASIA.
asked by ANAGHA 
math
Sandra has 8 coins that equal 87 cents what coins does she have
asked by McKenzie 
8th grade
advertising in arecent uear, outdoor advertisements amounted to 2.2% of all advertising dollars spent in the u.s. what fraction is this?
asked by tong 
Chemistry
What is the ionic equations for the following metals and aqueous substances? With the same equation what is being oxidize and what is being reduced? Zn + AgNO3 Zn + CuSO4 Zn + PbNO3 Mg + AgNO3 Mg + CuSO4 Mg + PbNO3 Cu + AgNO3
asked by JoseAnn 
economics
Suppose the USA and Canada are considering to trade. Assume there are only two goods in the economy: wheat and corn. The table below illustrates what each country can produce in a given year. Wheat Corn USA 4 2 Canada 5 8 In this case, which country should
asked by roxanne 
geometry
what is the answer to this; Alvan said that if 2 triangles are not congruent, then at least one of the 3 sides of one triangle is not congruent to the corresponding side of the other triangle. do you agree with alvan? justify your answer.
asked by liz 
Physics
find the deceleration of a cyclist reduces from 2.5m/s to 1.0 m/s in 12s?
asked by Kevin 
12th Grade English
We have to find the synonym of the word in bold. I have a few choices but I'm stuck between two.. The words in bold are incumbent upon the phrase reads: incumbent upon all officials Deciding to choose between a) the duty of b) the term of office of
asked by Leanna 
organic chemistry
Propose a mechanism for the acid catalyzed dehydration of 1,1dimethyl propanal
asked by Jada 
Chemistry
There's Fe+3 + SCN FeSCN+2 + heat then we add heat to it. Which way is it going to shift?
asked by Brianna 
miccoeconomics
you are a painter, and the price of a gallon of paint increases from $3.00 a gallon to $3.50 a gallon. your usage of paint drops from 35 gallons a month to 20 gallons a month. perform the following. compute the price elasticity of demand for paint and show
asked by pam 
algebra word problems
you have 95 coins that total $10.75. the coins consist of only quarters and nickels. how many of each coin do you have?
asked by mike 
Chemisty
Are the following isotonic, hypotonic or hypertonic. 1) H2O 2 0.9% NaCl (isotonic) 3) 10% glucose 4) 3% NaCl 5) 0.2% NaCl
asked by Terry 
division
What is 9,360 divided by 1/12 What is 29,400 divided by 1/12
asked by Phyllis Jones 
Chemistry
When a vehicle is parked in the sunlight on a hot summer day, the temperature inside can approach 55 deg C. one company has patented a nonCFC propelled aerosol that can be sprayed inside a vehicle to reduce the temperature to 25 deg C within seconds. the
asked by Rayana 
statistics
an experiment consists of 4 tosses of a coin.denoting the outcomes HHTH,THTT,..and assuming that all 16 outcomes are equally likely, find the probability distribution for the total number of heads.
asked by ali 
math
WHAT IS INTEGERS
asked by ANAGHA 
algebra
3r+18=6r
asked by ashley 
CHEM
A mixture of n2 and o2 contains 2.7 grams of O2 and occupies 3.1 L at 28 degrees Celsius, 810 mmHg. how many grams of N2 are present?
asked by MAX 
6th grade Science
How can you make an event chain concept map of the different levels of cell organizations from cell to organ system?
asked by Wyeth 
Math
An object is heated to 90 degrees Celcius and is then allowed to cool in a room whose air temperature is 25 degrees celcius. If the temperature of the object is 75 degrees celcius after 10 minutes, when will its temperature be 50 degrees celcius? I have no
asked by Hannah 
College
For college admissions it stated for SAT tests there are no score cutoffs for standardized tests. What does this mean? That if you score low it won't affect your acceptance?
asked by Amy 
12th Grade Vocabulary
We have to pick which sentence the vocabulary word is used incorrectly. Vocab Word: Verity a) Many people trusted the VERITY of the accused spies Ethel and Julius Rosenberg, but the defendants were convicted and executed for espionage in 1953. b) Although
asked by Leanna 
Math
The area of a circular swimming pool is 225pi square meters. What is the circumference of the swimming pool? Leave your answer in terms of pi.
asked by Miley 
algebra word problems
1) tina has 48 mL of a solution that is 25% acid. how much water should she add to obtain a solution that is 15% acid? 2) how many grams of sugar must be added to 60 grams of a 32% solution to obtain a 50% solution?
asked by mike 
physics
find the force of a toy jeep if the mass is 50kg and is traveling at 4 m/s and the radius is 50 centimeter
asked by Mary 
Physics
which would take more force to stop? something 1.6 kgm/s or something 4 kgm/s?
asked by Johnny 
chemistry
determine the total amount of energy required to heat 25g of ice at 18 C to steam at 125 C
asked by laura 
computer & computer knowledge
how do I over beat a chatroom that has a digit restrainer(meaning it will only let you type a certain amount of words)
asked by jack elvis 
math
solve the given inequality and graph its solution on the number line 2x/3less than or eqaul to (
asked by mimz 
physics
The coefficient of static friction between a block and a horizontal floor is 0.37, while the coefficient of kinetic friction is 0.10. The mass of the block is 3.8 kg and it is initially at rest. Once the block is sliding, if you keep pushing on it with the
asked by anonymous 
Fine Art
4. Which of the following has a surface covered with coffers? a. Bath b. Apse c. Dome d. Arch I know it's not A, but I'm not sure what it is. 9. The Hellenistic style was exemplified in a. Seated Boxer b. geometric cases c. Kouros d. Classical Not sure
asked by mysterychicken 
Chem
Calculate the number of grams in each of the following. (3 s.f.) 19. 0.550 mol Au ________________________
asked by SAMM 
US history
1. During Nixon's first term, it could be said that: A. the nation was completely at peace again. B. he was more successful in foreign policy than with domestic policy. C. he was generally more successful with domestic policy than with foreign policy. D.
asked by anthony 
history
What does Paine say to the Tories who stand in the way of Independence? Why did he believe it necessary to address part of his essay to them?
asked by Kat 
PHYSICS
(1 pt) An aricraft carrier has a mass of 8.9 x10^7kg and can cruise at 55 km/h. a) What is the work required to stop it? J b) What constant force could stop it in 6 km? N a) If only half of the work required to stop it is done, what is its final speed?
asked by applebottom 
Math
cent, cent, scent equals 35128; how do you solve it?
asked by Emily 
Physics
Hi I have a question in Physics A block with mass 50kg is held on a slope. Ù friction coefficient = 0.35 between the plane and the block .. Planets angle v with the horizontal is 25 degrees. How far will the block slide down the plane in 5 seconds after
asked by Oddbjørn 
organic chemistry
what product would you expect to obtain from addition of Cl2 to 1,2dimethylcyclohexene?
asked by Jada 
Early childhood
what do you think of the concept of Sit and wacth and Timeout could you please give some examles and i you could say how it ralates to the developmentalbehavioral approach.if someone could help me thank you this will elp me to understand the question a
asked by Theresa 
Biomechanics
A pitched ball with a mass of 1 kg reaches a catcher's glove traveling at a velocity of 28 m/s. How much momentum does the ball have? how much impulse is required to stop the ball? If the ball is in contact with the catcher's glove for 0.5 s during the
asked by Walter 
6th grade
Each letter in each questio stands for a 1digit number. in each question, no two letters maystand for the same number. Two separate problems are unrelated.Find a value for each letter MOON Use Numbers 4,7,5,6,2.8,9,3 x AT ____ ACROSS
asked by melissa 
history
What obstacles lay in the way of Southern industrialization after the Civil War?
asked by sara 
algerba
A person wins 500 points in a game. What is the corresponding number?
asked by tom 
7th grade Algebra
A set of whole numbers contains 1, 3, 4, 5, 6, 11, and X. The mean and median of the set are the same, and the mean is equal to one of the six known numbers above. What is the value of X?
asked by Kristy 
Verb tense
Write five sentences abut the roleof education in successful financial planning, in which you correctly use a different verb tensein each sentence. Mark eah ver used in bold and in parentheses identify the specific tense used.
asked by Carly 
statistics
A normal population has a mean of 21 and a standard deviation of 5. Compute the z value associated with 24 What proportion of the population is between 21 and 24? What proportion of the population is less than 18?
asked by Barbara 
foreign language(SPANISH)
i need help to unscramble these spanish words!!! srate,qeroiu,vosa,risvait,rpracmo
asked by Rudi 
Statistics
The closing price of Schnur Sporting Goods, Inc., common stock is uniformly distributed between $17 and 35 per share. What is the probability that the stock price will be: More than $31? Less than or equal to $23?
asked by Barbara 
economics
What is the significance of this and what are the consquences. I don't understand the world of economics. Maybe a little help to get started. Thank you. Canacol Energy, an oil firm listed in Toronto and Bogota has a goal to increase its output to 35,000
asked by Sarah 
Physics
For a certain transverse wave, the distance between two successive crests is 3.11 m, and 5 crests pass a given point along the direction of travel every 12.16 s. Calculate the wave speed.
asked by Brian 
Precalculus
The volume V(t) of air (in cubic inches) in an adult's lungs t seconds after exhaling is approximately. (Do not use mixed numbers in your answer.) V(t)= 53+28.5sin(pie(t)/2pie/2) (a) Find the maximum and minimum amount of air in the lungs. Maximum is
asked by Max 
Precalculus
1.Simplify the expression (sin x+cos x)^2  sin2x 2.Determine the period, amplitude, and phase shift of f(x) = 2/3sin(4x+pie) Is the amplitude: 2/3, period: 2pie/4 phase shift: pie/4
asked by Max 
physics urgent helppp!!!
A rocket of mass 4.50 105 kg is in flight. its thrust is directed at an angle of 49.0° above the horizontal and has a magnitude of 6.00 106 N. Find the magnitude and direction of the rockets acceleration. Give the direction as an angle above the
asked by hy 
Math
A 384m wire is cut into three pieces. The second piece is 3 m longer than the first. The third is fourfifths as long as the first. How long is each piece?
asked by Nina 
algebra
A 384m wire is cut into three pieces. The second piece is 3 m longer than the first. The third is fourfifths as long as the first. How long is each piece?
asked by Nina 
geology
2 trees grew near one another and have the same growth succession but one is larger than the other. The rate of growth of a tree is based on moisture, sunlight, temperature, and nutritious soil. Which of the four factors above is the reason for the
asked by m 
Spanish
Cuándo se pone ustede el abrigo? What does this mean: is it "when do you put your coat on?" Then how am I supposed to answer? the question doesn't really make sense.
asked by Amy 
English 12
Yesterday, i posted a question about writing a thesis for Life of Pi. However i'm not sure how to develop a thesis from my topic. The topic of my essay is "Yann Martel's depiction on the role of setting in India and Canada". If anyone can kindly help me to
asked by Andy 
Chemistry Help!!!
What is the maximum number of electrons that can have n=4, mi= 1 in an atom? Also, explain how you got that answer. I am confused.
asked by Elizabeth 
AP math 11 grade
the charges for a phone call are $.52 for first min. and $.35 for each additional min. A)graph this step function for 6 minutes.Let x represent time, and f(x) the charge B) for the domain 0
asked by sal 
physics
What provides the force when a car makes a turn? (This is dealing with centripetal force)
asked by Lola 
English
Can you please check these sentences for me, please? I rephrased the beginning of "The talented Mr Ripley". 1)The scene is set at the seaside on a small motor boat. Dickie, the son of a millionaire, is excited at the idea of going for a ride offshore. 2)
asked by Franco 
Chemistry Help
Have the electrons been added to this diagram from lowest to highest energy states? Yes or No? Why? This is an orbital diagram: I don't have arrows so, < means up > means down
asked by Sarah 
geology
How old are the oldest meteorites yet studied and what is the minimum age of Earth since Earth is at least as old as the meteorites. We know the oldest meteorites contain equal amounts of uranium 238 and lead 206. Uranium 238 has a half life of 4.5 billion
asked by m 
Math
Suppose human activity has caused a 0.1 Fahrenheit increase in global temperatures so far, and that this sift will grow exponentially with a doubling time of 10 years. a. How much will temperatures have risen 50 years from now? b. A politician suggests
asked by Priya 
PhysicPlease help
Which of the following confirms that gravitational mass and inertial mass are equal? 1.Freefall accleration is the same throughout the universe 2.Free fall acceleration is the same at all points where the gravitational field stength is the same 3.Newton's
asked by Annie 
algebra2
y varies directly as the square of x. When x = 2, y = 40. Find x when y = 640.
asked by Rayniya 
chem
write a balanced equation for:Gaseous carbon dioxide and liquid water react to produce aqueous glucose (C6H12O6) and oxygen gas. I try but everytime i change the coefficient it makes the other elements unbalanced. the starting formula i got was: CO2(g) +
asked by hannah 
algebra2
What is the standard form equation of the line passing through (–2, 8) with a slope of 2?
asked by Rayniya 
algebra2
What is the equation of the line passing through (0, 2) and perpendicular to the line y = 4x – 3 in slopeintercept form?
asked by Rayniya 
algebra2
What is the equation of the line passing through (1, 7) and parallel to the line y = –x + 5 in standard form?
asked by Rayniya 
algebra2
To which graph does the point (–1, 3) belong?
asked by Rayniya 
algebra2
What is the vertex of the graph of y = –x + 4 + 1?
asked by Rayniya 
algebra2
Solve P = 2w + h for h.
asked by Rayniya 
algebra2
What is the equation of a vertical line passing through the point (3, –5)?
asked by Rayniya 
algebra2
Solve x – 2y = 4 for y.
asked by Rayniya 
algebra2
What is the solution set for –2x + 16 – 9 = –3
asked by Rayniya 
algebra2
What is the equation in pointslope form of the line passing through (0, 5) and (–2, 11)?
asked by Rayniya 
Physics
A microphone has an area of 3.8 cm2. It receives during a 2.87 s time period a sound energy of 4.2x1011 J. What is the intensity of the sound?
asked by Mike 
algebra2
What are the solution intervals for 2x – 1 + 6 > 9?
asked by Rayniya 
algebra2
On the graph of the equation 8x – 3y = 24, what is the value of the yintercept?
asked by Rayniya 
algebra2
y varies jointly with p and q. When p = 12 and q = 4, y = 144. Find y when p = 10 and q = 6.
asked by Rayniya 
algebra2
What is the slope of the line that passes through (2, 12) and (4, 20)?
asked by Rayniya 
Origami Sites
Hi. I can't find any origami sites to make easy Christmas presents. Can anyone help me! Thanks, Erin
asked by Erin 
Research
Sociological research can be a difficult procedure what are some of the problems or concerns that need to be dealt with?
asked by Blaze 
Chemistry Help
The orbital diagram shown here has some mistakes in it. Indicate which of the following rules and principles were not observed when this diagram was constructed. Select all that apply. 1. aufbau principle 2. Pauli exclusion principle 3. Hund's rule This is
asked by Sarah 
Physics
If I'm driving a car and I make a turn to the right, what will happen to a bag of items that is sitting next to me in the carin terms of inertia, friction and centripetal force I think they will fall the opposite direction but why?
asked by Jacob 
algebra 2
how do u do synthetic division with the problem: (x^57x^3+x+1)/ x+3
asked by monique n. 
Economics help
Article dealing with monopoly power, either regulated or illegal attempts at monopolization.
asked by joe 
History
Excuse me, but I need help in finding what Thomas Jefferson and Benjamin Franklin did to help the American Revolutionary War. Please, Lilly Social Studies P.S. Thank you.
asked by Lilly Social Studies 
Fine Art
28. Describe some of the different features architects used in the Colosseum that made it so unique. I need help answering this. Thanks! MC
asked by mysterychicken 
COLLEGE
an you please tell me if this passage is correct? I am looking for 20 grammatical errors, comma(six); capitalization(six); question marks,apostrophes, and quotation marks(five); colons,semicolon and common misused words(three) Why are great numbers of
asked by Queen 
poetry
What's the paraphrasing of "If you can bear to hear the truth you've spoken Twisted by knaves to make a trap for fools, Or watch the things you gave your life to, broken, And stoop and build 'em up with wornout tools"
asked by Jen 
statistics
Assume that the mean hourly cost to operate a commercial airplane follows the normal distribution with a mean of $2,225 per hour and a standard deviation of $220. What is the operating cost for the lowest 5 percent of the airplanes?
asked by Barbara 
physics
A crate of mass 20 kg is pushed up a frictionless ramp by a person as shown in the figure below. Calculate the work done by the person in pushing the crate a distance of 15 m as measured along the ramp. Assume the crate moves at a constant velocity.
asked by Warren 
grammar
Wondering if I have correctly identified each verb in the following sentences: The role of education plays (simple present) a major role in successful financial planning. My Personal Finance class is helping (progressive present) me to learn how to budget
asked by Karen 
8th grade science
When forces are ______ they are equal and opposite and their is ________ ___________.
asked by lexus 
hcr220 college
I am confused with what they are wanting me to do. It says write a 1500 to 1750 word essay in which you discuss implications of both forms of the patient's diseases, HIV and AIDS, from the perspective of HIPAA confidentiality. I am confused on what
asked by kristina 
Chemistry
How many grams of ice at 26.5\, ^\circ C can be completely converted to liquid at 15.0\, ^\circ C if the available heat for this process is 4.50×103 kJ? For ice, use a specific heat of 2.01J/(g\cdot{ ^\circ C}) and H2 = 6.01 kJ/mol.
asked by Bella 
Chemistry
Please let me know how you would approach the gas law problem. Here goes: If the pressure exerted on the gas in a weather ballon decreases from 1.01 atm to 0.562 atm as it rises. By what factor will the volume of the gas in the ballon increase as it rises?
asked by Cliff 
Reimbursement Methodologies
List some of the risk areas that can be identified through the auditing process.
asked by Maryana 
physics
Set a frictionless incline at various measured angles then determine the acceleration of a block by measuring the time it takes to increase from an initial speed to a final speed.If the angle is 20 and the initial speed is 0.68m/s and final speed is
asked by Trista 
business
You are a technical writer in a large company who is working on a training manual to help new users learn the company's computer system. Employees will use your manual in training seminars taught by your company's trainers. The manual will also serve as an
asked by Anonymous 
Reimbursement Methodologies
You work in a physicians office performing billing. You notice that the guidelines haven't been followed accurately in completing the claim form. What will happen if you don't correct the claim form ?
asked by Maryana 
Math
What is the most precise name for each space figure that has the given properties. 1. four lateral faces that are triangles? 2. three lateral faces that are rectangles? 3.a lateral surface and one circular base?
asked by Edith 
Reimbursement Methodologies
Mary was recieving Medicaid in Texas. When she moves to California can Mary assume that she will receive the same coverage there ?
asked by Maryana 
PHYSICS
What is the reaction effect of the following action effects? a) Earth orbits the sun b) Ball accelerates downward Thank YOu.
asked by JJ 
computer programming
Write a program that simulates the dial of a phone number. The program will input a phone number and the program will acknowledge the call by either writing an error message or the 8 digit phone number to the console window. The phone number may have
asked by Jeffry 
Physics  Springs
a 10.0 g bullet is fired into a 1.0 kg block initially at rest on a rough surface and connected to a spring with k = 200 N/m. Immediately following the collision the block has a speed of 2.0 m/s. The coefficient of friction between the ground and the block
asked by Anonymous 
Physics
An airplane flies due north at 160 km/h with respect to the air. There is a wind blowing at 80 km/h to the east relative to the ground. What is the plane's speed relative to the ground?
asked by Daniel 
physics
what impulse is needed to stop a 45 g mass traveling at 42 m/s?
asked by Jenn 
Physics
A 50.0g Bullet traveling horizontally at 200.0 m/s embeds itself in a much more massive wooden block initially at rest on a horizontal surface (μ=0.10) The block then slides 1.2m toward an ideal spring and collides with it. The block compresses the spring
asked by Alexander 
Physics
I have no idea how to do this.
asked by Alexander 
physics
A 70 kg man jumps 1.00m down onto a concrete walkway. His downward motion stops in .02 seconds. If he forgets to bend his knees, what force is transmitted to his leg bones?
asked by nina 
UOP
The final project for HSM 240 is a 1,750 to 2,100word proposal paper on a social program that you create. Pretend that you have the power and capacity to create an agency or organization and decide to create a new social program. You need funding and
asked by Tina 
Reimbursement Methodologies
Explain why the lack of Universal Health Care Coverage can raise health care costs. Thank you Ms. Sue for your previous help....
asked by Maryana 
Radical Expressions
How do you do radical expressions? Square root of 72. Cube root of 54. Fourth root of 96.
asked by Mary 
3rd grade
Name all the arrays you can manke with each set of tiles 8 tiles, 9 tiles, and 16 tiles
asked by Emma 
Physics
The motion of a particle connected to a spring is described by x=10cos(πt). At what time (in s) is the potential energy equal to the kinetic energy?
asked by Jesse 
Math
What is the most precise name for each space figure that has the given properties. 1. four lateral faces that are triangles? 2. three lateral faces that are rectangles? 3.a lateral surface and one circular base?
asked by Edith 
PhysicsPlease check
Which of the following confirms that gravitational mass and inertial mass are equal? I posted this about three hours ago and no one answered it so I'm hoping someone can look at my answer and direct me 1.Freefall accleration is the same throughout the
asked by Annie 
accounting I
What would be the journal entry to record: Sept 28, 2009 A dividend was declared, which they intend to pay at $0.10 per share by the end of the year. The company has 25,000 shares of capital stock
asked by Johsua 
PhysicsHELP PLEASE
If I'm driving a car and I make a turn to the right, what will happen to a bag of items that is sitting next to me in the carin terms of inertia, friction and centripetal force I think they will fall the opposite direction but we just started this unit
asked by Jacob 
Math
when two fair dice are rolled find the probability that the sum is even and greater than 8
asked by Barbara 
Math
An object is heated to 90 degrees Celcius and is then allowed to cool in a room whose air temperature is 25 degrees celcius. If the temperature of the object is 75 degrees celcius after 10 minutes, when will its temperature be 50 degrees celcius? I have no
asked by Hannah 
physics
A constant force of 48.7 N, directed at 34.1° from horizontal, pulls a mass of 15.1 kg horizontally a distance of 2.77 m. Calculate the work done by the force.
asked by help 
accounting I
I have to journalize the following entry for SirRentsALot: Sept 29, 2009 A child was slightly injured when he fell off of the frontend loader that was rented to Landscrapers Inc. The child is the only son of a lawyer and an orthopedic surgeon. They
asked by Johsua 
statistics
Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 689599.7 rule to find the following quantities: a. Percentage of scores less than 100 b.Relative frequency of scores less than 120
asked by TAW 
math
The result of reflecting across the line y=x and then rotating 330 degrees counterclockwise around the origin is an isometry T. Represent T by a 2x2 matrix. Could someone explain how to do this?
asked by caroline 
Chemisty
Which solution contains more acid, 50ml of a 0.20 N HCL solution or 50 ml of a 0.20 N acetic acid solution? Which has a higher hydronium ion concentration? Which has a lower pH?
asked by Terry 
Reimbursement Methodologies
Why did the Centers for Medicare and Medicaid Services implement the National Correct Coding Initiative in 1996 ?
asked by Maryana 
PLEASE HELP. physics
A .25 kg skeet is fired at an angle of 30 degrees to the horizon with a speed of 30 m/s, When it reaches the maximum height, a 15 g pellet hits it from below. Before the collision, the pellet was traveling vertically upward at a speed of 200 m/s Embedded
asked by caroline 
accounting I
For the following entry, should I journalize that entry on the purchased date or on Oct. 1st? Sept 29, 2009 Purchased a oneyear public liability insurance policy for $5,000. The policy becomes effective at 12:01 a.m. October 1, 2009.
asked by Johsua 
chem repost
write a balanced equation for:Gaseous carbon dioxide and liquid water react to produce aqueous glucose (C6H12O6) and oxygen gas. I try but everytime i change the coefficient it makes the other elements unbalanced. the starting formula i got was: CO2(g) +
asked by hannah 
physics
Graphically solve for the WORK done if F= 40N @ 30 degrees and d= 12 @ 0 degrees.
asked by russell 
Chemistry
Sodium oxide, reacts with water to give NaOH. A) Write a balance equation? B)What is the pH of the solution prepared by allowing 1.55 g of Na2O to react with 500.0 ml of water? (assume there is no volume change) C) How many milliliters of 0.0100M HCL are
asked by Ann 
physics
a 60 kilogram student sitting on a hardwood floor accelerates at 1.3 meters per second squared when pulled by a 240 newton horizontal force. what is the coefficient of friction between the student and the floor?
asked by bob 
Physics
A microphone has an area of 3.8 cm2. It receives during a 2.87 s time period a sound energy of 4.2x1011 J. What is the intensity of the sound?
asked by Mike 
psychology
habitually listening to loud music through headphones can result in loss of hearing in what part of the ear?
asked by olive 
STATISTICS
A bank officer wants to determine the amount of the average total monthly deposits per customer at the bank. He believes an estimate of this average using a confidence interval is sufficient. a) How large a sample should he take to be within $200 of the
asked by Jing Sun Q. 
physics
A braking force is applied to a 300kg motorcycle to reduce its speed from 20.0m/s to 16.0m/s in 10.0s. Find the braking force.
asked by kevin Chen 
Chemistry
How to find the coefficient of Fe^2+ from ClO3^ + Fe^2+ > Cl^ + Fe^3+
asked by Jane 
Physics
A car moving at 8 m/s crashes into a barrier and stops in 0.050 s. There is a 19kg child in the car. Assume that the child's velocity is changed by the same amount as that of the car, and in the same time period. (a) What is the impulse needed to stop the
asked by Preston 
US history
1. The staff of President Nixon: A. demonstrated how much the government had grown in the previous fifty years. B. was not as large as it should have been, but it allowed Nixon to exert as much control over each person as possible. C. was generally a group
asked by anthony 
Algebra
1. LCM of 15x^7 and 45x^7 2. Marla can shovel the driveway in 60min and Bill can do it in 45min how long would it take them to do the job together? 3. Divide and simplify: x^24/x divided by x+2/x+8 4. add and simplify: 5/49z^3 + 1/35z^2 5. simplify by
asked by Anonymous 
English
Thank you very much for your corrections. Here are some more sentences for you to check. 1)The narrator is the voice who tells the story and from whose point of view the story is told. 2)He may be internal to the story, that is, a character in the story,
asked by Franco 
AP Physics
Find the scalar product of the vectors in Figure P7.8, where è = 117° and F = 31.0 N. y   ___ Unk Angle> /  \x starts@O> / / / / /_/
asked by Sierra 
Algebra
1. Subtract and simplify 18/y8  18/8y 2. subtract simplify if possible v5/v  7v31/11v 3. Simplify by removing factors of 1 r^281/(r+9)^2 4. Divide and simplify v^216/25v+100 divided by v4/20 5. find all rational numbers for which the rational
asked by Anonymous 
Math
It takes one hour longer to fly to St. paul at 200 miles per hour than it does to return at 250 miles per hour. How far away is St. Paul?
asked by Michael 
algebra
A. The speed of train A is 6mph slower than the speed of train B. Train A travels 220 miles in the same time it takes for train B to travel 250 miles find the speed of each train solve and check: q+9/3 + 94/4 = 13/3 simplify by removing factors of 1 :
asked by Anonymous 
Physics
I am doing an assignment where I need to find an example of a spring that is used in a common device. Is a phone chord considered a spring? Thanks for your help.
asked by Kate 
calculus
differentiate: y = 2x/1  3x^2
asked by Jazmin 
English
I forgot to include the following statements. I really hope you can have a look at them, too. Thank you very much in advance. 1)The thirdperson narrator is a narrator who stands outside the story and uses the third person voice to refer to the characters.
asked by Franco 
Algebra 1
The world record for the mile was 4:10 and 3:49 in 1975. Assuming that the record improves in a linear fashion (which it has so far) write an equation to predict the mile world record (in seconds) for a given year (y=record in seconds, x=year) What should
asked by Nikki 
Genetics
Quick question: which methods can be used to get DNA into cells? you can choose more than 1 answer A: Apply a high voltage B: Shoot DNA into the cells C: Infect with viruses D: Inject with a needle E: All of the above F: None of the above Is it all of the
asked by Lauren 
science
can a color blind female have a son that has normal vision? color blindness is caused by a sex linked recessive allele. N=normal vision n=color blind
asked by jack 
Chemistry
Cobalt60 is a radioactive isotope used to treat cancers. A gamma ray emitted by this isotope has an energy of 1.33 MeV (million electron volts; 1 eV = 1.602 multiplied by 1019 J). What is the frequency (in Hz) and the wavelength (in m) of this gamma ray?
asked by Rachel 
chemisrty
Nitric acid,HNO3, is available ata a concentration of 16 M. how much would react with 5.58 g of KOH acording to the following equation? HNO3+KOHH2O+KNO3
asked by nicole 
chemistry
I fyou had only 12g of KOH remaining in a bottle, how many ml of 12.8%(w/v) solution could you prepare? (in mL) How many ml of 0.29 M solution could you prepare using 12 g of KOH?
asked by nicole 
PHYSICS
What is the reaction effect of the following action effects? a) Earth orbits the sun b) Ball accelerates downward Thank YOu.
asked by JJ 
physics
If the ball is released from rest at a height of 0.64 m above the bottom of the track on the noslip side, what is its angular speed when it is on the frictionless side of the track?Assume the ball is a solid sphere of radius 4.0 cm and mass 0.14 kg
asked by Sarah 
AP Physics
Hi! Thank you very much I know this is a 2dimensional inelastic collision but i'm not sure how to solve "The mass of a blue block is 20% greater than the mass of the green block. Before colliding, the blocks approach each ther with momenta of equal
asked by APpreciative student 
Algebra
Show that two WRONG's can make a RIGHT. Replace each different letter in the addition problem with a different digit. It is required that O=zero.
asked by Rachel 
algebra
how do you solve (f+g)(3) let f(x) = x22x and g(x)= x5
asked by jessica 
social studies
why did the Pilgrims sailed to amreica
asked by wayne 
chemistry help
Nitric acid,HNO3, is available ata a concentration of 16 M. how much would react with 5.58 g of KOH acording to the following equation? HNO3+KOHH2O+KNO3 dont understand? does not give me a volume amount to work with and I really don't understand how to
asked by nicole 
English
I'd just like to know which would be the most suitable pronoun to be used in the following sentence. 1) The choice of this narrator can have the following functions. First, that of bringing the reader close to the feelings of the narrator. 2) Second, it
asked by Franco 
programing
small startup software developer company needs to create a program that will calculate the pay of its employees. For the third version of the program, the company wants the program to accept an employee’s name, the number of hours the employee worked,
asked by Anthony 
acid and base titrations
what is the pH of a solution prepared by adding 0.50 mol KOH to 1.0 L of 0.30 M HNO3?
asked by jj reddick 
AP Physics
there are two vectors in quadrant three one with a magnitude of 31.0N and has a direction of 117degrees in the negative direction from the x axis the other has an unknown magnitude and unkown theta in the positive direction starting from 90 degrees Find
asked by Sierra 
college physics
A mass of 1 kg is hanging from a spring with a spring constant of 3 N/m. At a distance of 0.2 m below the equilibrium it has a velocity of 1 m/s in the upward direction. What is the amplitude of the oscillation?
asked by Molly 
physics
What is the acceleration of a 23 kg pail of cement that is pulled upward (not sideways!) with a force of 300 N?
asked by confused 
Reimbursement Methodologies
Your reviewing reimbursement for a medical surgical craniotomy case. The case falls into DRG 1,which has a relative weight of 3,0970 and a geometric mean length of stay of 6.3. The hospitals current reimbursement rate is $1,500. Calculate the DRG
asked by Maryana PLEASE HELP 
college
Explain how the U.S. became involved in the politics of Southeast Asia
asked by richelle 
Algebra
how would I find the domain and range without a graph for this : x^2  1
asked by Amy 
MATH
what would be the space figure of a shoe box?
asked by Edith 
science
geologists determine a rocks relative age and....?
asked by kayla 
College physics
A toddler is on a playground swing. When she is right in the middle going forward (to the right), then ... a).her tangential acceleration is maximal to the right. b) her tangential acceleration is zero. c) her tangential acceleration is maximal to the
asked by Paige 
Physics
A radioactive nucleus at rest decays into a second nucleus, an electron, and a neutrino. The electron and neutrino are emitted at right angles and have momenta of 9.80 1023 kg·m/s, and 5.80 1023 kg·m/s, respectively. What is the magnitude and direction
asked by Joe 
Chem 1010
What will happen to 42 g of KCl solution per 100 g of water when cooled from 60 degrees Celsius to 0 degrees Celsius?
asked by Jen 
Calculus 1 Implicit differentiation
Help please help me understand what i am doing wrong in this problem! x^3+3x^2y+y^3=8 find dy/dx using implict differentiation. The answer is x^2+2xy  but i keep getting x^2y x^2+y^2  x^2+y^2
asked by jahil 
Algebra
Another question about domains and range how would I find the range of (3x4)/(6x1) ? Without using a graph the domain is x can't be 1/6 What is the range?
asked by Amy 
MATH
Would a lateral surface and once circular base be a cone?
asked by Edith 
Calculus 1 Related Rates
Water is discharged from a pipeline at a velocity v(in ft/sec) given by v=1240p^(1/2), where p is the pressure (in psi). I f the water pressure is changing at a rate of 0.406 psi/sec, find the acceleration(dv/dt) of the water when p=33.0 psi. I know the
asked by jahil 
chemistry
How many moles of H2 are in a beaker of 60ml of 2HCL?
asked by Anonymous 
algebra
How do I write the equation of a line in STANDARD FORM, when it contains (2,1) & (1,4) ?
asked by Nicole 
writting
this is a weird question but i need help on writting a conclusion about the color blue?
asked by kathy 
Physics
A bullet of mass 5.15 g is fired horizontally into a 2.74 kg wooden block at rest on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.185. The bullet comes to rest in the block, which moves 1.84 m. (a) What is the
asked by confused 
social studies
what did thomas jefferson and benedict arnold have to do with the Revolutionary War?
asked by Lyra 
finance mortgage payment
Purchase a home for $160,000. I intend to put down 20% and finance the remainder over 15 years at 6 3/8% interest. If my taxes & insurance totals $3,600 per year, how much will my total monthly payment be?
asked by allen 
MATH
What is the sapce figure that has three lateral faces that are rectangulars?
asked by Edith 
Economics
What is the significance of this and what are the consquences. I don't understand the world of economics. Maybe a little help to get started. Thank you. Canacol Energy, an oil firm listed in Toronto and Bogota has a goal to increase its output to 35,000
asked by Sarah 
hum 205
need help w the human experience assignment
asked by scott 
Physics
A bathysphere used for deep sea exploration has a radius of 1.50 m and a mass of 1.20 × 104 kg. In order to dive, the sphere takes on mass in the form of sea water. a) Determine the mass the bathysphere must take on so that it can descend at a constant
asked by Sydney 
MATH
What is the sapce figure that has three lateral faces that are rectangles?
asked by Edith 
chemistry
calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition from n=5 to n=1 how do I do this?
asked by Lisa 
english
I am going to write about Somali pirates and I need help with writing my essay. I want to start with Anecdote and I don't know how to start. I am not for Somali pirates but I just think that justice is not being servered. this is little background about
asked by Jackie 
algebra
a commerical jet and a private plane leave the same airport at the same time traveling in opposite directions at average speeds of 880km/h and 450km/h respectively. in how many minutes will they be 1463 km apart.
asked by amelia 
Math
The range of 105,100,79,86,101,94,98,87, and 83 is ?
asked by Maryana 
Algebra
How do I write the equation of the line in standard form given this info: Perpendicular to 3x  1y = 4 with an xintercept of 12 ? Thanks! :)
asked by Nicole 
Physics
what is the variation of pressure in the sound wave if the sound intensity is 3.85x10^8 W/m^2, the speed of sound is 343 m/s and the density of air is 1.2 kg/m3?
asked by Mike 
chem class
What is the pH of an aqueous solution at 25.0 °C that contains 3.98 × 109 M hydroxide ion? i posted this before and i tried solving it but i get it wrong 14 = ph +  log (3.98 × 109) 14 8.4 = ph 5.6 = ph but the correct answer is 8.400 what did i do
asked by jessie 
Math
A home is assessed at $70,000. The tax rate is 6.15 mills. What is the tax on the home ?
asked by Maryana 
chemistry
I am having a ton of trouble with this lab question, I do not understand it at all. The question is: Show how the rate of reaction in reciprocal seconds was calculated for the mixture in question 1, using the class average. The mixture in question one is:
asked by blue fire 
Question
What does this mean? Chilean, Colombian, and Peruvian stock exchanges integrate to create Latin America's largest stock exchange in terms of companies listed and the second largest by market capitalization
asked by Sarah 
Banking
What is the bottom line on an income statement ? A. The gross margin B. The final sales C. The total operating expences D. The net income (or loss)
asked by Linda 
Math
The hiking club hiked to a park at 4mph. They got a ride back to town in a truck that went 20mph. If the round trip took 18 hours, how far was it from town to the park?
asked by Julie 
Physics
Suppose that highspeed stroboscopic photographs show that the 200g head of a golf club travels at 51 m/s just before it strikes a 50g golf ball initially at rest on a tee. If the club head slows to at 36 m/s (in the same direction) after the collision,
asked by help! 
PHYSiCS 
A pendulum makes 120 complete oscillations in 3.00 minutes at a location where g= 9.98m/s^2 Find the period of the period Find the length I tried using the 2pi sqrt. L/g formula I don't know why I got this huge number
asked by Reema 
Math
The acid test ratio does NOT include A. cash B. accounts receivable C. supplies D. inventory
asked by Math Question 
inequalities graph
2x+y0
asked by alfreda 
english
I have to write a paragraph which sustains an ironic tone. I have two thesis that I want to write about. (1)Being organized shows a lack of creativity. (2) Reading is a waste of time. I want to write about the first one. Please tell me a way to write about
asked by Maria 
Math
How long will it take for an investment to double in value if it earns 9.5% compounded continuously?
asked by Sarah 
math
A circular racetrack has a diameter of 200 meters. What is the approximate distance a car travels in meters for three full revolutions around the track? use 3.14 for pie.
asked by Abby 
earth
The Earth orbits the Sun once every 365 days. The distance between the Earth and the Sun is 1.5 x 1011 m. What is the average orbital velocity of the Earth as it travels around the Sun?
asked by Anonymous 
math
two vectors are defined as a=2i+xj and b=i4j. find value of x if a) the vectors are parallel b) the vectors are perpendicular
asked by karla 
Organic Chemistry
A student wanted to synthesize the anesthetic 2ethoxy2methylpropane. She used ethoxide ion and 2chloro2methylpropane for the synthesis and ended up with little of the desired product. Why? What major product did she obtain? What reagents should she
asked by Sierra 
Statistics
Let p1 represent the population proportion of U.S. Senate and Congress (House of Representatives) democrats who are in favor of a new modest tax on "junk food". Let p2 represent the population proportion of U.S. Senate and Congress (House of
asked by Ben 
Statistics
Let p1 represent the population proportion of U.S. Senate and Congress (House of Representatives) democrats who are in favor of a new modest tax on "junk food". Let p2 represent the population proportion of U.S. Senate and Congress (House of
asked by Ben 
Math
Are the following fractions equivalent? justify your answer 18/24 9/12 15/20 6/9
asked by Bob 
One time business investment
Bobbie Rae is lending Tommy Lee $4,500 to open up a bait shop at one of the nearby lakes. Tommy Lee says he will repay Bobbie Rae at the end of 4 years with 7% interest compounded quarterly. How much will Bobbie Rae receive at the end of the 4 years? Hint:
asked by allen 
Calculus
Calculate the volume of the ramp in Figure 17 in three ways by integrating the area of the cross sections: (a) Perpendicular to the xaxis (rectangles) (b) Perpendicular to the yaxis (triangles) (c) Perpendicular to the zaxis (rectangles)
asked by Jack 
physics
A 2.20 kg box slides down a rough incline plane from a height h of 1.39 m. The box had a speed of 2.77 m/s at the top and a speed of 2.34 m/s at the bottom. Calculate the mechanical energy lost due to friction
asked by help 
Earth Science
Lower case letters that come after the capital letter(s), e.g., KJk, labeling a rock unit represent the rock unit's _
asked by Jessenia 
Physics
Suppose that highspeed stroboscopic photographs show that the 200g head of a golf club travels at 51 m/s just before it strikes a 50g golf ball initially at rest on a tee. If the club head slows to at 36 m/s (in the same direction) after the collision,
asked by help! 
physics
what is the variation of pressure in the sound wave if the sound intensity is 3.85x10^8 W/m^2, the speed of sound is 343 m/s and the density of air is 1.2 kg/m3?
asked by Mike 
physics
A 1.0 m cubed object floats in fresh water with 20% of it above the waterline. What does the object weigh out of the water?
asked by Jack 
Statistics
a roulette wheel has 40 slots evenly divided between red (even) and green (odd) slots totaling 38 and a "0" and a "00". what is the probability of the ball landing in an: A)even number < 10 B) other than an even or odd number C) odd number > 15 D) even
asked by kristina 
math
donna runs 7 miles in 75 minutes. At the same rat, how many miles would she run in 45 minutes?
asked by lisa 
Compounded Interest
) An investment of $37,000 was deposited in the bank. Interest was computed on a semiannual basis and was kept there for 10 years. If the maturity value of this investment is $74,000, at what interest rate was it invested?
asked by Anonymous 
Finance
An investment has grown to $89,000 over a 6year period. The interest was computed daily and the rate was 7 3/8% per year. What was the original investment?
asked by Anonymous 
chemistry
i think I am not doing this part right (1/n5^2  1/n1^2)
asked by Lisa 
Math
Mr. Frost is painting his garage, which has a surface area of 500 square feet. He has 1 3/4 gallons of paint. If one gallon of paint covers 150 square feet, how much more paint must Mr. Frost buy? Show your work. Please help.
asked by Hayley 
O.Chem
Only a substitution product is obtained when the compound 1bromo2,6dimethylcyclohexane is treated with sodium methoxide. Draw the substitution product and explain why an elimination product is not obtained.
asked by Lily 
Math
Calculate the volume of the ramp in Figure 17 in three ways by integrating the area of the cross sections: (a) Perpendicular to the xaxis (rectangles) (b) Perpendicular to the yaxis (triangles) (c) Perpendicular to the zaxis (rectangles)
asked by Jack 
English
Thought to be _______, the criminal was sentenced to life without parole. 1.blasphemous 2.heretic 3.incorrigible
asked by Bob 
math
two vectors are defined as a=2i+xj and b=i4j. find value of x if a) the vectors are parallel b) the vectors are perpendicular
asked by karla 
L.A
1.The longdistance swimmer had a sense of ____________. A.Engaging B.Perseverance C.Potential D.Rendition ( Would the correct choice be perseverance?) Thanks
asked by Shadow 
statistics
hi, how would i calculate the standard deviation of the following sampling distribution of means. apparently this is the longhanded way of calculating standard error. *a population of scores contains exactly 5 scores : 2, 3, 6, 8, 11 (2, 2) ... 2 (2, 3)
asked by ash 
Algebra
Can someone help me ??? Use a commutative law to find an equivalent expression of 7=rs
asked by TRACY 
Physics
Object A has mass mA = 9 kg and initial momentum A,i = < 19, 7, 0 > kg · m/s, just before it strikes object B, which has mass mB = 12 kg. Just before the collision object B has initial momentum B,i = < 5, 6, 0 > kg · m/s. Consider a system consisting of
asked by What does this even mean!? 
math
hi i need help calculating the standard error using the central limit theorem. *a population of scores contains exactly 5 scores : 2, 3, 6, 8, 11, there are 5x5=25 samples of the two scores (n=2)* i already calculated the standard deviation and mean. for
asked by ash 
Statistics
hi i need help calculating the standard error using the central limit theorem. *a population of scores contains exactly 5 scores : 2, 3, 6, 8, 11, there are 5x5=25 samples of the two scores (n=2)* i already calculated the standard deviation and mean. for
asked by ash 
Finance
Calculate the simple interest and maturity value. Principle $16,000 Interest Rate 4% Time 18 mnths
asked by Anonymous 
English
If the king fails to QUASH the rebel forces, they will... what could i write to finish the sentence?
asked by Bob 
algebra
A contagious disease is infecting residents of a town of 7,300 residents. The number of residents infected t days after the disease has begun is given by the function f(t)= 7300/1+500e0.5t How many residents are infected with the disease after 6 days?
asked by joyce 
Physics
An 8.00 g bullet is fired into a 250 g block that is initially at rest at the edge of a table of 1.00 m height (Fig. P6.26). The bullet remains in the block, and after the impact the block lands 2.00 m from the bottom of the table. Determine the initial
asked by having trouble 
Math
A wooden artifact from an ancient tomb contains 70% of the carbon14 that is present in living trees. How long ago was the artifact made? (The halflife of carbon14 is 5730 years. Round your answer to the nearest whole number.) And.... An infectious
asked by Tarah 
English
With the election so near, the mayor became RETICENT about..... what could i write to finish the sentence?
asked by Bob 
English
Ske[tics argued that the noss's UNORTHODOX management style would...
asked by Bob 
Physics
Suppose a spacecraft of rest mass 34000 kg is accelerated to 0.206c. How much kinetic energy would it have? If you used the classical formula for KE, by what percentage would you be in error? Do not enter units.
asked by VJC 
English
Skeptics argued that the boss's UNORTHODOX management style would... im not sure how to! I know that unorthodox means disregarding or defying traditions or standards
asked by Bob 
finance
The banks offers a rate of 8 1/4 percent with a 20percentcompensating balance requirement, or as an alternative, 9 3/4 percent with additional fees of 5,500 to cover services the bank is providing. In either case the rate on the loan is floating ( changes
asked by butterfly 
CHEMISTRY
For the reaction 3 O2(g) reverse reaction arrow 2 O3(g) If the equilibrium mixture is analyzed and [O2(g)] is found to be 3.77*102 M, what is the concentration of O3(g) in the mixture?
asked by Jane 
Physics
A cylinder with a valve at the bottom is filled with an ideal gas. The valve is now opened and some of the gas escapes slowly. The valve is then closed, after which the piston is observed to be at a lower position. Assume that the system is in thermal
asked by Carl 
physics
An alpha particle collides with an oxygen nucleus, initially at rest. The alpha particle is scattered at an angle of 60.9° above its initial direction of motion, and the oxygen nucleus recoils at an angle of 51.9° on the opposite side of that initial
asked by siera 
CHEMISTRY
I am having a ton of trouble with this lab question, I do not understand it at all. The question is: Show how the rate of reaction in reciprocal seconds was calculated for the mixture in question 1, using the class average. The mixture in question one is:
asked by blue fire 
English
How to be a good poet
asked by Mary 
physics
In a crash test, a truck with mass 2600 kg traveling at 24 m/s smashes headon into a concrete wall without rebounding. The front end crumples so much that the truck is 0.66 m shorter than before. What is the average speed of the truck during the collision
asked by Confused again 
physical science
how much work is done on a 100kg crate that is hoisted 4 m in a time of 4 seconds
asked by crystal 
physics
wo fan carts with different fan speeds and different accelerations are started from rest some distance from one another. Cart A begins at position 0 with a velocity of zero and an acceleration of aA to the right. Cart B begins at position xB with a
asked by cherin 
physical science
how much power is required to lift the crate
asked by crystal 
10th grade  chemistry
what is 670.8/1000000000 and then what is 3.0 * 10 to the 8th power divided by the top answer ...
asked by yessi 
Chemistry
Teeth and bones are composed, to a first approximation, of calcium phosphate, Ca3(PO4)2(s). The Ksp for this salt is 1.3*10^32 at 25°C. Calculate the concentration of calcium ion in a saturated solution of Ca3(PO4)2.
asked by Amy 
Chemistry
How would you prepare 150.0 mL of a 0.200 M aqueous solution of potassium chloride from a 0.500 M aqueous solution of potassium chloride?
asked by Kiesha 
English
We can't use that photograph because Maria blinked while it was taken. Tell if compound or complex sentence complex
asked by Hayley 
Math grd 12
How many different sevendigit telephone numbers are possible if no number may begin with 0?.....the answer is 9,000,000 but I'm not sure how to get that, plz explain:)
asked by Celina 
math
If the radius and diameter of a sphere were measured in inches, then the surface area would be measured in
asked by troy 
Math grd12
How many tendigit telephone numbers are possible if the first three digits must be different? The answer is 72,000,000,000.... I need the method to get that:)
asked by Celina 
Chemistry
how many moles of ozone does the atmosphere hold?
asked by Ben 
FP/101
Which of the following is considered an advantage of home ownership? A. You are responsible for all repairs and maintenance. B. Interest paid on the mortgage of your home is tax deductible. C. Mortgage payments are always lower than rent payments. D.
asked by vanessa 
Math grd12
How many arrangements of five letters from the word 'certain' contain the letter 't'? Explain your reasoning.
asked by Celina 
Maths
My teacher divided his class into groups of 8 on Monday, 10 on Tuesday and 4 on Wednesday. What is the least possible number of children in his class?
asked by PJ 
algebra
Convert to a logarithmic equation: 9y = 6561
asked by jane 
Physics
A ball initially at rest is dropped from a window 18.6 m off the ground. How long does it take for the ball to reach the ground? Round your answer to 2 decimal places.
asked by Patel 
physiscs
a 15g bullet is fired horizontally into a block of wood with mass 2.5 kg and embedded in the block, Initially the block of wood hangs vertically and the impact the bullet just before the impact.
asked by Jay 
physics
A catapult with a spring constant of 1.0 104 newtons per meter is required to launch an airplane from the deck of an aircraft carrier. The plane is released when it has been displaced 0.50 meter from its equilibrium position by the catapult. What is the
asked by ... 
math
A parallelogram is a convex quadrilateral with four vertices and two sets of opposite parallel sides. Given 3 of the vertices of a parallelogram at A (0,0) B(2,5) and C(2,0), find all possible coordinates for D.
asked by Kay 
Physics
A 0.2 kg object that stretches a spring 6.5 cm from its natural length when hanging at rest oscillates with an amplitude of 1.5 cm. The acceleration of gravity is 9.81 m/s2. Find the total energy of the system.
asked by Mark 
math
A perpendicular bisector is a segment which is perpendicular to another segment, and specifically goes through the midpoint of the segment. Find the equation of the perpendicular bisector of in slope intercept form, given A(3,6) and B(3, 10) .
asked by Kay 
English
I need a short story with the theme of insanity. I'm not able to use TellTale Heart by Edgar Allan Poe. It would also be nice if it were a good read. Thanks (:
asked by Jim 
ALGEBRA
Express as a single logarithm and simplify: log x – log (8x) + 2 log 4
asked by Chris 
environment chem
how many moles of ozone does the atmosphere hold?
asked by Ben 
math
what is the next number after 2,22,12,132,1342
asked by Julie 
Math
Solve log10(8 x) − log10(1 + √x) = 2 for x.
asked by Michael Weston 
Comp
What is the plural possessive of brotherinlaw?
asked by Gail 
science
You are given a six month assignment by your employer to work at a remote location in Australia. In order to pack as lightly as possible, you try to research the climate of the small town in Australia, but there is little data since no major cities are
asked by Anonymous 
Statistics/2nd post
How is the pvalue of a hypothesis test related to type I and type II error?
asked by Taylor 
Statistics
Please help me understand this question. Can a hypothesis test yield a statistically significant (say p
asked by Taylor 
physics
The force F = (3.2, 7.1) N acts on a mass of 1.15 kg. At time t = 0 s, the mass has a velocity v0 = (0.46, 0.36) m/s. What is the angle (in degrees) of the initial velocity, measured counterclockwise from the +xaxis? I got 38.04 degrees but isn't the
asked by help 
physics
A firetruck is traveling at a velocity of +20 m/s in the x direction. As the truck passes x=63m it shoots a tennis ball backwards with a speed of 20 m/s relative to the truck at an angle of 39° from a height of 1.4 m. Neglect air resistance. At what x
asked by sandhu 
english 10th
what is a metaphor and hyperbole for the book the Bar Code Rebllion
asked by jessica 
algebra
Two angles are complementary if the sum of their measures is 90°. The measure of the first angle is 5° less than 4 times the second angle. Put the measure of the FIRST angle in Blank 1 and the measure of the SECOND angle in Blank 2. Just write the
asked by falonda 
Algebra
If the sides perpendicular to the wall have length x feet, which of the following (A, B, C, or D) represents the area A of the garden? A(x) = –2x2 + 30x A(x) = –2x2 + 60x A(x) = x2 – 60x A(x) = 2x2 – 60x
asked by Rob 
PhysicsLinear momentum
A block of mass m = 2.60 kg slides down a 30.0° incline which is 3.60 m high. At the bottom, it strikes a block of mass M = 6.80 kg which is at rest on a horizontal surface, Fig. 746. (Assume a smooth transition at the bottom of the incline, an elastic
asked by Joe 
science
A mineral can scratch any mineral harder than itself. True or False? I said it is false. My Mom told me I am wrong, it is true!! Can you tell me who is correct?
asked by Reed 
HUM176
briefly describe the evolution of movies, television, Internet, books and magazines, and media companies throughout the last century.
asked by Axia 
physics
c) The rocket is launched a third time with the same initial velocity as before at an angle of 45 degrees. This time we want to launch the rocket so that it goes through a field goal post at a height of 7.9 meters in the air. Calculate the time the rocket
asked by gabbi 
physics
Solve for v1. O.500km/v1+3.50km/2v1=0.250h
asked by john 
psy
Father: Information collected on elementary school children have indicated that for the most part, the more cavities children have, the better they are at math. Since I want my daughter to improve her math skills, I now make sure she eats candy with every
asked by Anonymous 
Physics
A cylinder with a valve at the bottom is filled with an ideal gas. The valve is now opened and some of the gas escapes slowly. The valve is then closed, after which the piston is observed to be at a lower position. Assume that the system is in thermal
asked by Thomas Samuel Adams 
Math grd 12
You are setting a system programing codes for a universal TV remote control. Each code will have five digits and cannot include a 0 or repeat any digits. How many codes a)do not contain a 7? b)have 3 as the third digit, and 5 as the fifth digit c)begin
asked by Celina 
physics
the average speed of light slows to .75 c when it refracts through a particular peice of plastic. a) What change is there in the light's frequency in the plastic? b) It's wavelength?
asked by chloe 
Math
Write the following fractions in increasing order: 45/44, 5/4, 12/11
asked by Tom 
Research help/cont
Sociological Research can be a difficult procedure what are some of the problems or concern that need to be dealt with.. Was assisted with this earlier, but unfortunately the links provided were of no assistance.
asked by Blaze 
Math grd 12
In how many ways can you make Rhe border if it requires 15 titles and you use only blue and white ones? Explain your reasoning. The final answer is 8008.
asked by Celina 
Algebra
A gardener has 60 feet of fencing with which to enclose a garden adjacent to a long existing wall. The gardener will use the wall for one side and the available fencing for the remaining three sides. (a) If the sides perpendicular to the wall have length x
asked by Rob 
math
A=P(1+nr); find r
asked by Dee 
science
I am resubmitting my question because I did not receive any help yet! True or false. A mineral can scratch any mineral harder than itself. I put down false BUT my Mom said it is true. Who is correct?
asked by Reed 
Math grd12
Gisela lives in a subdivision where the streets are laid out in a grid pattern. Her school is eight blocks south and six blocks east of her home. How many different direct routes could she take when she bicycles to school if she always stops by her
asked by Celina 
physics
An alpha particle collides with an oxygen nucleus, initially at rest. The alpha particle is scattered at an angle of 60.9° above its initial direction of motion, and the oxygen nucleus recoils at an angle of 51.9° on the opposite side of that initial
asked by Please Help! 
chemistry
How many grams of NaCl are required to make up 2.00 L of a 4.00 M solution of NaCl
asked by Anonymous