Questions Asked on
February 13, 2010

Science
As early as 1938, the use of NaOH was suggested as a means of removing CO2 from the cabin of a spacecraft according to the following reaction : NaOH+CO2 > Na2CO3 + H2O. If the average human body discharges 925. 0 g of CO2 per day how many moles of NaOH
asked by Kara 
Physics 11th grade
Squaw Valley ski area in California claims that its lifts can move 48700 people per hour. If the average lift carries people about 185 m (vertically) higher, estimate the maximum total power needed. (Assume an average mass per person of 70 kg.)
asked by Luricela 
Chem
The vapor pressure of CCl3F at 300K is 856torr. If 11.5g of CCl3F is enclosed in a 1L container, Will any liquid be present? If so, what mass of liquid?
asked by RM1031 
Chemistry
A cell is set up with copper and lead electrodes in contact with CuSO4(aq) and Pb(NO3)2(aq), respectively, at 25˚C. The standard reduction potentials are: Pb2+ + 2e > Pb E˚=0.13 V Cu2+ + 2e > Cu E˚=+.34 V If sulfuric acid is added to the Pb(NO3)2
asked by Anonymous 
Science
If 2.50 mol of copper and 5.50 mol of silver nitrate are available to react by a single replacement:Cu + 2AgNO3 > Cu(NO3)2 + 2Ag What is the amount in moles of each product formed?
asked by Kara 
Physics
A 74.0 kg firefighter climbs a flight of stairs 12.0 m high. How much work is required?
asked by Luricela 
pseudocode programming
Develop an algorithm or write pseudocode to determine if a citizen is eligible to vote. The criteria for eligibility are that the citizen must be 18 or older and must not be a convicted felon. The algorithm must continuously accept as input only the names,
asked by Janeille 
business letter
can you check for me? Thanks Assigment: write a business letter according to the background. Background:Assume that you’ve worked for the last five years as an administrative assistant for the Human Resources Department of Broadworth General Hospital.
asked by Ruby 
physics
You push a box along the floor against a constant force of friction. When you push with a horizontal force of 75 N the acceleration of the box is 0.55 m/s2; when you increase the force to 85 N the acceleration is 0.78 m/s2. (a) Find the mass of the box. kg
asked by janie 
11th grade
(a) What is the minimum work needed to push a 1150 kg car 240 m up a 17.5° incline with zero friction? (b) What is the minimum work needed if the effective coefficient of friction is 0.20?
asked by Luricela 
physics
A police officer in hot pursuit drives her car through a circular turn of radius 305 m with a constant speed of 83.5 km/h. Her mass is 55.0 kg. what are the magnitude and the angle of the net force of the officer on the car seat?
asked by rabih 
calculus
A trough is 15 ft long and its ends have the shape of isosceles triangles that are 4 ft across at the top and have a height of 1 ft. If the trough is being filled with water at a rate of 14 ft^3/min, how fast is the water level rising when the water is 8
asked by Gabe 
physics
Estimate the magnitude of the electric field in a cell membrane with a thickness of 8nm
asked by jamie 
Finite Math
If the life in years, of a television set is normally distributed with a mean of 46 years and a standard deviation of 4 years, what should be the guarantee period if the company wants less than 3% of the television sets to fail while under warranty?
asked by Maria 
Geography
#53. In an essay, discuss the causes of discontent between Catholic and Protestants in Ireland and the significant events in this drama. Be sure to include dates throughout your essay in order to create a timeline of the events. my answer: Ireland’s
asked by y912f 
Computers
ProblemSolving 1. Develop an algorithm or write pseudocode to determine if a citizen is eligible to vote. The criteria for eligibility are that the citizen must be 18 or older and must not be a convicted felon. The algorithm must continuously accept as
asked by Janeille 
11th garde physics
A grocery cart with a mass of 18 kg is pushed at constant speed along an aisle by a force F = 12 N. The applied force acts at a 20° angle to the horizontal. Find the work done by each of the forces on the cart if the aisle is 17 m long. a)work done by the
asked by Luricela 
Chemistry
A cell is set up with copper and lead electrodes in contact with CuSO4(aq) and Pb(NO3)2(aq), respectively, at 25˚C. The standard reduction potentials are: Pb2+ + 2e > Pb E˚=0.13 V Cu2+ + 2e > Cu E˚=+.34 V If sulfuric acid is added to the Pb(NO3)2
asked by Anonymous 
physics
When you push a 1.95 kg book resting on a tabletop it takes 2.40 N to start the book sliding. Once it is sliding, however, it takes only 1.50 N to keep the book moving with constant speed. What are the coefficients of static and kinetic friction between
asked by janie 
Statistics
In a Gallup poll of 1,038 adults, 540 saud that secondhand smoke is very harmful. What is the percentage of adults who said secondhand smoke is very harmful?
asked by Liz 
physics
The vector position of a 3.80 g particle moving in the xy plane varies in time according to the following equation. r1=(3i+3j)t+2jt^2 At the same time, the vector position of a 5.35 g particle varies according to the following equation. r2=3i2it^26jt For
asked by ucieng 
English composition
I am working on an argumentive essay. My argument is to add a pick up lane in front of my son's elementary school.I am finding it dificult to come up with the right words for my topic and the first maint point. Can somebody get me started? Please.
asked by Debre Rolon 
Math214
Jane has two tennis serves, a hard serve and a soft serve.Her hard serve is in (a good serve) 50% of the time, and her soft serve is in (good) 75% of the time. If her hard serve is in, she wins 75% of her points. If her soft serve is in, she wins 50% of
asked by alicia 
11th grade Physics
A car does 6.0 104 J of work in traveling 2.6 km at constant speed. What was the average retarding force (from all sources) acting on the car?
asked by Luricela 
Biology
38. Mitosis and meiosis are the two different ways cells divide. They both share common characteristics and processes, but differ in some very important ways. I answered part A and B of this, but I need help with C: c. Why is it important for chromosomal
asked by mysterychicken 
physics
Find the velocity v and position r as functions of t for a particle of mass m which starts from rest at x=0 at time t=0 and subject to the following forces: F=Fo F=Fo +bti F=Fo coswt F=kt^2
asked by Matthews 
how to..
how to answer this question ? describe how someone could improve the following areas of fitness in the pool. 1.cardio cascular, 2.muscle strength, 3.muscular endurance. what does this mean ? how do i answer this?
asked by james 
chemistry
If 600 mL of 1.05 M aqueous CaCl2 and 720 mL of 0.792 M aqueous Na3PO4 are reacted stoichiometrically according to the balanced equation, how many milliliters of 0.792 M aqueous Na3PO4 remain? Round your answer to 3 significant figures.
asked by eng 
English
Can you check the following sentences for me, please? 1) Last year my brother and I went for a ride on our motorbikes (Can you also say: "I went for a motorbike ride with my brother?) 2) We were riding on a digged up road. (how can I say that the road was
asked by Franco 
Math
I posted this problem last night and someone answered. I followed all the steps that this person told me to do and I don't get the right answer. The right answer is suppose to be $23.54. What am I doing wrong? For groups of four or more diners, many
asked by Lana 
chem
Given: 3H2(g) + N2(g) 2NH3(g) If the reaction starts with 0.500 mol of H2, how many atoms of hydrogen in the compound NH3 would you expect to make?
asked by kp 
Math!
DigiCom has decided to purchase products with a list price of $503.60 and a trade discount of 40%. What is the amount of discount on the products? A, discount amnt d, discount rate L, list price A=dL A=(.40)(503.60) A=201.44 What is the net price of the
asked by Tharaka! 
Fin
Midland Chemical Co is negotiating a loan from Manhattan Bank and Trust. The small chemical company needs to borrow $500,000. The bank offers a rate of 8¼ percent with a 20 percent compensating balance requirement, or as an alternative, 9¾ percent with
asked by Tim 
math
One mile is equal to: A} 1.61 kilometers B} 3.52 kilometers C} 0.91 kilometers D} 2.34 kilometers
asked by matty 
chemistry
When 0.667 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 108C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant
asked by blasting 
CALCULAS
POLAR EQUATION OF INWARDLY SPIRALING SPIRAL
asked by YAMNA 
calculus
evaluate each limit, if it exists Lim as x approaches 2 (x^4  16) / (x+2)
asked by Anonymous 
Profit & Loss
how do i calculate this problem? A and B are in partnership sharing profits and losses in the ratio 3:2 respectively. Profit for the year was $86,500. The partners’ capital and current account balance at the beginning of the year: Current accounts – A
asked by Peaches 
Math
A customer purchased a car and financed $16,000. The customer borrowed part of the money from a bank charging 10% annual interest and the rest from a credit union at 8% annual interest. If the total interest for the year was $1,390 how much was borrowed
asked by Heather 
geo
what is china's population density?
asked by anna 
Statistics
Sample salaries (in dollars) of high school teachers are listed. Find the sample mean and standard deviation of the data. 49,632 54,619 58,298 48,250 51,842 50,875 43,219 49,924
asked by bridget 
health
can anyone help me understand the difference between programmed and unprogrammed theories of senescence. Guess it would help me so much if I even knew what it was? help please
asked by april 
spanish
how do you say magical in spanish?
asked by tdb 
helpmplz
which ststement does NOT describe prescripitivists? A. Language should be recoreded,not judgement. B. Language use should follow strict rules. C. Language use should never change D. Language use should be judged and evaluated. .The answer i choose is c.
asked by brit brat 
Physics
A charged disk of radius R that carries a surface charge density σ produces an electric field at a point a perpendicular distance z from the center of the disk, given by: Edisk = (sigma/2e0) x(1(z/(square root(z^2 + R^2)) Consider a disk of radius 10 cm
asked by Susie 
english composition
i have a hard time understanding to write essay and start paragraph
asked by katie 
ecuador
the currencey used in ecuador is the: A} pero B} sucre C} kina D} pula A little help here plz lol
asked by leslie 
chemistry
How much heat is required to raise the temperature of 200 g CH3OH from 20 to 30 degrees and then vaporize it at 30 degrees. The molar heat capacity of CH3OH is 81.1 J/Mol/K. Okay...the answer is approximately around 254. It was a homework problem. The
asked by joseph 
Math/Precal
what is the first term of an arithmetic sequence if the 7th term is 21 and the 10th term is 126
asked by Nancy 
Finance
3. Describe the general relationship between net income and net cash flows from operating activities for the firm.
asked by Anonymous 
EA
Where would you most likely find a token economy as a form of classroom management? A) RRP approach B) Contract approach C) Contingency management approach D) RIP approach
asked by Darla 
calculus
determine the slope of the tangent for the following function. Then determine the equation of the tangent line at x=1 F(x) = x F(x) = x^4
asked by Anonymous 
hca 210
generally hospiats are categorized as non pfofit, for profit and governmental.identify at least one example of each from your community or state.
asked by sara 
geo
what are the human characteristics in china?
asked by anna 
Pre Algebra
Which product equals 3t12? a. 4(t3) b. (4t)3 c. 3(t4) d. (3t)4
asked by Abigail 
geo
what is china's population density patterns ?
asked by anna 
Math
What is the excluded value? y^2y+5/y+4
asked by Ann 
Physics
A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 19.0 m/s. The cliff is h = 50.0 m above a flat horizontal beach. With what speed and angle of impact does the stone land?
asked by Ana 
Physics
Tom the cat is chasing Jerry the mouse across the surface of a table 1.1 m above the floor. Jerry steps out of the way at the last second, and Tom slides off the edge of the table at a speed of 6.4 m/s. Where will Tom strike the floor? A)3.03m from the
asked by Ana 
college
how do you start with an essay with contrast and compare about your life now and five years ago ?
asked by katie 
chemistry
How much heat is required to raise the temperature of 200 g CH3OH from 20 to 30 degrees and then vaporize it at 30 degrees. The molar heat capacity of CH3OH is 81.1 J/Mol/K. Okay...the answer is approximately around 254. It was a homework problem. The
asked by joseph 
psycholoogy
social heritage among  is zero
asked by fill in the blanks 
statistics
Number sampled is 1,000 and mean is 7.2 on a scale from 110 how do I determine standard deviation. Can we answer this with using the sampling distribution of the sample proportion?
asked by mark 
ethics
Just have a question if to if anyone can show me how to set up a APA citation reference and a intext citation...... Also how to set up APA format..I read the directions and still get it wrong, so if anyone knows how to simplify it for me I would
asked by stephanie 
algebra
i have no less than 6,000 to spend and no more than 10,000 write an inequality to show how much I have to spend
asked by charlyn 
Chemistry
Calculate the volume ( L ) of the solute water and the volume ( L ) of the solvent tetrahydrofuran that should be added to generate 4.73 kg of a solution that is 1.36 m water.
asked by andy 
sci 230
are marine turtles unique to the belize's barrier reef? if not, could someone please tell me where to find some example of some that are?
asked by Patiance 
calculus
evaluate the limit Lim as x approaches 3 (1r3  1rx ) / (x  3)
asked by Anonymous 
college
Write a 350 to 700word response describing three case law decisions from the chapter you believe have the most substantial impact on policing today.
asked by tiana 
maths
Please could you help me in finding a function rule for the following table: x: 2 3 4 f(x):2 1 0
asked by bindiya farswani 
mathematical app's
having problem with question47. Darrell owns a consulting business and has an estimated annual income of $63,000. his social security tax is 12.4%, medicare is 2.9%, and his estimated federal income tax rate is 22%. how much quarterly estimated tax must
asked by Diane 
English
I have a question about Shakespeare. I know that he wrote many plays, (about 37) and that they all could be classified as comedy, tragedy or histories, but Which type of classification is often cited with Shakespeare's greatest plays?
asked by Danielle 
geo
what are the human characteristics in china?
asked by anna 
stastics
The first clzxx in a relative frequency table is 5059 and the corresponding relative frequency is 0.2. What does the 0.2 value indicate?
asked by Liz 
accounting
what would happen if a company had both interest payments and lease payments
asked by sheilea 
question
what does population density mean? i searched it up on the dictionary. com , but i still do not understand
asked by danny 
Oganizational Communications
I need an example of an organizational writer that is unethical in his/her in writing. Can somone please steer me in the right direction? Thanks in advance!
asked by Carmin 
statistics
The first class in a relative frequency table is 5059 and the corresponding relative frequency is 0.2. What does the 0.2 value indicate?
asked by Liz 
HCS 427
How does human resource management affect the success of a healthcare organization? What would you like to see human resources do for you as a manager or staff member?
asked by Liz 
geo
china's immigration and emigration patterns
asked by anna 
geometry
Which geometric figure could not be drawn using both perpendicular line segements and parallel line segements? A.a pentagon B. a rectangle C. a trapezoid D. a triangle IS the answer(D) a triangle
asked by Marie 
geo
china's immigration and emigration patterns
asked by anna 
Corporate Communications
I need an example of Corporate writing that presents false information that could potentially impact public safety. Thank you.
asked by Shelly 
Physics
Ammeter 1 reads 0.20 A. a. What should ammeter 3 indicate? b. What should ammeter 4 indicate? Given: RA = 22OHM RB = 13OHM A1 = 0.20 A Ammeter 2 reads 0.15A. a. Find the voltage across the 22ohm resistor? b. Find the voltage across the 15ohm resistor?
asked by Priscilla 
geo
china's political information
asked by anna 
Reproduction
What would the biological effect of severing the portal blood vessels in the stalk of a pituitary gland? Would the release of hormones by the posterior pituitary gland be affected by severing the portal blood vessels?
asked by Beth 
Reproduction
How does a glycoprotein stimulate genomic and metabolic change in a cell?
asked by Eliz 
Ecology
How does the skin and life cycle of a frog help indicate the health of local ecosystems?
asked by Emily 
geo
what are china's major imports and exports?
asked by anna 
PSYC
Of the three classifications of human strengths/developmental assets, which do you think would be most valuable for you? Describe why you think so.
asked by Tanyia 
statistics
If sample number is 1,000 and mean is 7.2 on a scale from 110 how do I determine standard deviation.
asked by mark 
English
Can you please check the following sentences for me, please? Thank you 1) The first inhabitants of Great Britain were the Iberians. They were followed by the Celts. 2)) They were organized in tribes (or used to live in tribes?) and were skilled (a synonym?
asked by Franco 
spanish
how do you say "he loved" in spanish?
asked by tdb 
Math
Sue, got a raise at work her current wage was $32.500 a year her new wage is 35.500 a differents of $3.000 per year how do I come up with her hourly wage she is paid is every 26 weeks?
asked by Cathy 
chemistry
A colloid is the dividing line between solutions and heterogenous mixtures. What is the exact particle size of a colloid compared to the exact particle size of a solution. A. over 1000nm compared to 0.11nm B. 11000nm compared to 0.011nm C. 0.101nm
asked by CC 
college
I shall argue that this reaction was irrational to a great extent and that to that extent Americans unwittingly cooperated with the terrorists in achieving a major goal: which one is premise and the conclusion?
asked by vivian 
health
What other challenges do case workers face when working with placement of the elderly in longterm care facilities?
asked by ladiipassion 
Math
For the following, use the inverse relationship between logarithms and exponentials to determine x. log2(x^2−2x)=3 Solution Set:_____________? I don't know how to do this question at all :( Please help and show the work as well so that I can learn!
asked by jh 
HCA 220
I need help with my presentation I have to do 10 to 12 slides that summarizes the processes of digestion, respiration, and circulation. I have asked for help from my professor but she said just to look at my course syllabus but still don't understand on
asked by kasey 
Accounting 1
May 1 Danny and Mary Jane deposited $50,000 into business checking account May 1 Rented theater building for shows – paid 6 months rent up front  $24,000 May 1 Purchased sixmonth insurance policy to cover rented building and customers  $3,000 May 1
asked by big b 
WRITING SKILLS
Which of the following is the best opening sentence for a business letter that you want to sound fairly informal? A. I am in receipt of your order of February 10. B. This letter is to make you cognizant of our receipt of your order. C. Your order of
asked by alia 
ecuador
nd im paying for the books im a homeschooler
asked by matty 
physics
How do you measure a unidentified capacitor when you have a identified one as well as voltmeter, a ammeter, a resistor and a light bulb as well as 3 1,5 batterycells. You have a conductinhcords?
asked by Lizard 
Science
What is Analysis?
asked by Jeremy 
Science
How can i teach my preschoolers the concept of soluble and non soluble materials?
asked by rane 
Math
I'm completely confused, please help explain how my teacher got this answer. How many board feet is the walking surface of my deck? How many boards are installed? This is the key she gives: 2” x 6” x 16’ long… 24’ / 6” = 24’ / .5’ = 48
asked by Dale 
Finance
Has the buildup in plant and equipment been financed in a satisfactory manner? Briefly discuss .
asked by Anonymous 
Health,Safety,andNutrition
A condition often brought on by an allergic reaction is: A: anemia B: diabetes C: asthma D: seizures I picked C Thanks
asked by Barb 
prealgebra
3/5y+8  3/5y8 simplify
asked by nick 
prealgebra
3/5y+8  3/5y8 simplify
asked by nick 
Finance
Has the buildup in plant and equipment been financed in a satisfactory manner? Briefly discuss .
asked by Anonymous 
Physics
An army of armadillios is attacking Cosine Castle where the coyotes reside. If an army must clear the 45 meter walls by 5 meters, at what angle must they set their cannons (from the horizontal) in order to fire inside the castle walls? The cannons fire
asked by HELP 
calculus
evaluate the limit: Lim as x approaches 2 (1r3  1rx) / x3
asked by Anonymous