1. physics

    Guy has to get a piano onto a 2.4 m high platform. He can use a 3.0 m long frictionless ramp or a 4.0 m long frictionless ramp. Which ramp will Guy use if he wants to do the least amount of work? Either ramp as the work done is same in both cases. The

    asked by mathew on February 11, 2015
  2. Finite Math

    Pete's Pizzeria offers 30 different pizza toppings. How many 3 topping pizzas are possible (assuming the toppings are distinct)? If we allow any number of toppings (all distinct), including none, how many different pizzas are possible?

    asked by Josh on December 10, 2015
  3. Business Math

    Dylan's Bicycle Shop offers a new bicycle on sale for $259.92 after a 10% markdown. What was the cost of the bicycle to Dylan if the markup was 30% based on the cost? Round

    asked by Joan on September 6, 2014
  4. math

    A sale at Carney’s Electronics offers a specific model of Sony radio at 20% off the regular price. If the sale price of the radios is $45, what is the regular price?

    asked by Star on December 14, 2009
  5. Math

    The rates for Internet use offered by three companies are shown below. Company A: $6.00 every 90 minutes of use Company B: $2.75 every 45 minutes of use Company C: $3.00 for every 60 minutes of use Which company offers the lowest rate per minute?

    asked by Anonymous on February 24, 2016
  6. math

    a sale at carney's electronic offers a specific model of sony radio at 20% off the reg price. if the sale price is 45 what is the reg price? would the answer be 54?

    asked by monica on April 8, 2010
  7. Microeconomics

    You are asked to examine the market for luxury housing in the southern Westchester town of Quietville. This kind of housing is said to be a normal good. In Quietville a substantial proportion of the people who buy luxury homes are people who work in the

    asked by Josh on March 14, 2016
  8. Recycling Flyer

    Is this a good flyer for a community recycling program? Help Your Community! A local issue in our community is that there is no town-sponsored recycling program. Unfortunately, this issue is not being addressed by the local political and business leaders.

    asked by y912f on May 19, 2010
  9. physics. please help

    A worker pushes a 820 N crate with a horizontal force of 345 N a distance of 24 m. Assume the coefficient of kinetic frictin between the crate and the floor is 0.22. a) How much work is done by the worker on the crate? b) How much work is done by the

    asked by Alecia on December 10, 2010
  10. Physics

    1. An arrow is shot from the top of a 50 m castle wall at 18 m/s horizontal to the ground. How far from the base of the castle wall will it land? 2. A cannon with a muzzle velocity of 45m/s is shot a various angles to get maximum distance. The general

    asked by Bryan on February 21, 2016
  11. Chem...one more time

    Ok ok I swear after this I'm done asking questions. It's just that I'm trying so hard to understand all of this, but sometimes it just doesn't make sense to me! So here we go: How many J of energy must be removed when 124.0 g of steam, at a temp. of 167.0

    asked by Lindsay on May 15, 2007
  12. Math Word Problem %

    lisa spend 3 hours driving to and from work each work day. what percent of her day does she spend driving to and from work each work day?

    asked by andra on May 8, 2014
  13. phy

    A 290 kg piano slides 4.6 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40. (a) Calculate the force exerted by the man. N (b) Calculate the

    asked by mas on September 25, 2010
  14. physics

    If a gasoline engine has an efficiency of 21 percent and loses 780 J to the cooling system and exhaust during each cycle, how much work is done by the engine? Is it 3709.5??? Chemical energy in (as fuel and oxygen) = Work out + Heat out 21% is the ratio of

    asked by anonymous on February 15, 2007
  15. Math

    24. two stores carry a similar stereo for the same original price of $573. one store offers a 16% discount and the second store sells the stereo for 458.40. which store gives the bigger percent discount? Justify your answer. ( 4 points) I don't understand

    asked by Rose on January 9, 2018
  16. Language Arts

    Write an essay in which you analyze the importance of plot events and characters' actions to the development of a story's theme. You might choose "Raymond's Run" by Toni Cade Bambara, "The Story-Teller" by Saki, "The Finish of Patsy Barnes" by Paul

    asked by Sammy on October 25, 2017
  17. micro economics

    One type of systematic error arises because people tend to think of benefits in percentage terms rather than in absolute dollar amounts. As an example, Samir is willing to drive 20 minutes out of his way to save $4.00 on a grocery item that costs $10.00 in

    asked by melisa on February 10, 2018
  18. Physics help please

    A crate is dragged 5.0 along a rough floor with a constant velocity by a worker applying a force of 125N to a rope at an angle of 30degrees to the horizontal. Calculate the work done by the tension in the rope, the force of friction, and the net force. I

    asked by K on December 5, 2013
  19. Math / Algebra

    Factor: 8ab - 16ac + 12a anyone wanna help me out with this, i know how to normally work out problems like this but for some reason im not getting the correct answer when i work it out...

    asked by Kiana T. on January 17, 2018
  20. Sciance/Math

    How how can i turn this formula into a simple word problem... Percent efficiency(e)= Work out (J) _____________ x100 Work in (J)

    asked by Sam on February 24, 2008
  21. physics

    An electric motor is tested and found 76% efficient. if the input work is 400 J, what is the motors output work?

    asked by han on June 11, 2011
  22. adult education

    I am doing a research for dissertation based on work life balance...can anyone help me ,work out on the title of poject,and where is the best place to search

    asked by urata on October 28, 2008
  23. physics

    How much work is done on a bookshelf being pulled 5.00m at an angle of 37.0 degrees from the horizontal? The magnitude of the component of the force that does the work is 43.0N

    asked by julie on May 24, 2010
  24. Physics

    A force of 3.00N acts through a distance of 12m in the direction of the force.Find the work done. work= force *distance If force is in newtons, distance in meters, the work unit is in joules.

    asked by fluffy on September 13, 2006
  25. Speech

    Please help me write an eight sentence paragraph that fully develops the topic. 1. Getting along with other people is important in my work. What exactly does "getting along" involve? What goals would "getting along" help you to meet your work goals? How

    asked by Cris on June 4, 2007
  26. Math cont.

    The neighborhood skateboard club is starting a fundraiser in order to buy more skateboards. They have decided to sell logo mugs. The Mugs on Mugs Company offers to supply mugs to the club for $3.75 each plus a $55 process and handling fee. The Punny-Cups

    asked by Jordan on October 16, 2009
  27. Math

    Mark finished 3/5 of his work in 15 mins how long will it take to finish all of his work?

    asked by Anonymous on September 16, 2014
  28. Mathematics

    Simplify the expression. (6x^-2)^2(0.5x)^4. Show your work. I know that the answer is 9x^2-+4 I just need help showing the work. PLEASE HELP!

    asked by Cali on January 23, 2017
  29. Math

    Mark finished 3/5 of his work in 15 mins how long will it take to finish all of his work?

    asked by Anonymous on September 16, 2014
  30. Math

    Mark finished 3/5 of his work in 15 mins how long will it take to finish all of his work?

    asked by Anonymous on September 16, 2014
  31. math

    A,B,C contract a work for 1020.together A and B are supposed to do 9/17 of work.how much C get? ans 480rs

    asked by xyz on November 24, 2017
  32. physical science

    what is required for work a force moving something, and movement of that something in the direction of work.

    asked by megan on May 27, 2007
  33. math

    I work 1 and 1/4 hour per day how many hours do I work per week and for five weeks

    asked by francis on November 27, 2012
  34. Life orientation

    Work ethics,4 actions to deal with unethical behavior at work

    asked by Anonymous on March 17, 2013
  35. Physics

    Help how to find work If a worker pulls a 10kg bucket up a 25 m well, how much work has he or she done?

    asked by Aisumi on October 22, 2010
  36. Maths - IQR

    Hi! How do you work out the Inter Quartile range? WHats the name for xbar and how do you work this out? THanks

    asked by Sasha on March 31, 2011
  37. Algebra

    Quick Question, when would an inequality like this work: x^2 - 4x >or equal to 0? ...What would I have to do to figure out when this would and would not work?

    asked by y912f on June 30, 2014
  38. English

    Literature: Explain how the historical context of a work can impact that work?

    asked by Stacey on October 11, 2009
  39. Algebra

    Quick Question, when would an inequality like this work: x^2 - 4x >or equal to 0? ...What would I have to do to figure out when this would and would not work?

    asked by y912f on June 30, 2014
  40. Math

    ^=exponents /= divide So I am not sure how to do this. It is an example in my book but I still don't get it. Can you work through ti so I can do my real work. (-1^2+-1^-2)^-1 [(-1)^2+(-1)^-2)]^-1 = [1 + 1/(-1)^2]^-1 = (1 + 1)^-1 = 1/2

    asked by Gina on November 24, 2006
  41. science

    how much work is required to pull a sled if you use 60j of work in 5 seconds

    asked by vidula on January 17, 2012
  42. Math

    The value of 12 is obtained by multiplying p% by A.12 B.12/p C.p/12 D.1200/p E.100p/12 Is there any work for this?, if so please show work.

    asked by Johnny on April 19, 2014
  43. fluid power

    a cyclinder must move a 2000lb load 2 ft. how much work must work in perform

    asked by rod on September 26, 2011
  44. thermochemistry

    what is the mass of a lead block that if heated to 100.0 dgrs C and placed in a container with 50.0g of ice at 0.00dgrs C produces a final water sample of 15.0dgrs C? Sh of Pb= 0.128J/g dgrsC step by step solution and answer q1 for Pb block = mass x sp.h.

    asked by crystine cole on April 12, 2007
  45. physics

    A 800kg , light-weight helicopter ascends from the ground with an acceleration of 3.00m/s2 . Part A Over a 6.50s interval, what is the work done by the lifting force? Part B What is the work done by the gravitational force? Part C What is the work done by

    asked by Lidia on October 17, 2013
  46. English

    I just need to know if zapping, channel surfing are synonyms, if subscribe is followed by to, and if propose could be followed the indirect object. I included a few more sentences I really don't know if they are possible. 1) I hate people zapping (channel

    asked by Mike on March 10, 2011
  47. Social Studies

    what is a legitimate government? A. one in which government leaders obtain and keep power by using force. B. one that offers the fastest solutions to a nations problems and citizens needs C. one that is created by a union or many smaller groups that could

    asked by Anastasia on August 16, 2016
  48. Fiancial Management

    You decide to purchase a building for $30,000, you put $5,000 down payment. The banks offers you a 15 yr mortgage requiring annual end of year payments of $3,188. The bank also requires you to pay a 3% loan originatio fee. Compare the annual % rate of

    asked by Tuty on August 3, 2008
  49. SUVs and Cars (Math)

    In a parking lot, the # of ordinary cars is larger than the # of sports utility vehicles. by 94.7%. The difference btwn the # of cars and the # of SUV's is 18. Find the # of SUV's. ~My thoughts and work: C= Cars # S= SUV # C-S= 18 (C/S)*100= 94.7% Can I

    asked by ~christina~ on September 16, 2007
  50. History

    I'm having trouble answering these questions. Can someone help without being mean? Please help! Much appreciated! Excerpt from Douglas’s speech: "I believe that the Union can only be preserved by maintaining inviolate the Constitution of the United

    asked by Oscar on March 22, 2015
  51. language arts

    During the lecture at Florida state, the audience of scientist was curious about how the guest speaker would treat the topic of life on other planets Q : what is the meaning of the word treat at is used in the sentence? A : To pay another persons expenses

    asked by Diamond on April 9, 2013
  52. language arts

    During the lecture at Florida state, the audience of scientist was curious about how the guest speaker would treat the topic of life on other planets Q : what is the meaning of the word treat at is used in the sentence? A : To pay another persons expenses

    asked by Diamond on April 9, 2013
  53. American Government

    I need help with the following question I am not sure if the answer is B or C. General Revenue Sharing offers states and localities even greater flexibility than block grants because they? A.are given a blank check. B.are completely unaccountable to the

    asked by Molly on October 5, 2014
  54. language arts

    During the lecture at Florida state, the audience of scientist was curious about how the guest speaker would treat the topic of life on other planets Q : what is the meaning of the word treat at is used in the sentence? A : To pay another persons expenses

    asked by Diamond on April 9, 2013
  55. graphing-reposting

    It looks like a double ski ramp...going down, min, then up, then way down to the bottom of the hill, then up slightly, then down. The first minimum is greater than the small rise at the bottom Sketch the graph of a differentiable function y = f(x) with

    asked by bobpursley on November 6, 2006
  56. *Repost* (sorry!) Health & PE HELP ASAP PLEASE!!!!

    1. A long term health benefit of regular physical activity is improved A. coordination B. reaction time C. ability to fight heart disease***** D. speed 2. Ginger and Kelly go to the same middle school in their town. Ginger rides her bike daily to and from

    asked by zumai on June 2, 2014
  57. Math

    Store A offers a 60% discount. Store B has a sale for 2/3 off. Which store gives the greater discount? Explain.

    asked by Kaity on January 18, 2017
  58. Geography

    why was the economy in the new england colony different from the economy in the middle colonies? A. The environment provided different resources for earning a living B. The settlers had different skills and work experience C. Religious beliefs affected the

    asked by Help? on October 5, 2016
  59. math

    an airline company offers a round-trip group flight from New York to London. If x people sign up for the flight, the cost of each ticket is to be 1000-2x dollars. Find the maximum revenue the airline company can receive from the sale of tickets from the

    asked by Emily on January 8, 2017
  60. English

    I forgot to include the following sentences. Thank you. 1) Our school is renowned for the study (?) of bio-technologies and is equipped with state-of-the-art physics and chemistry laboratories. However, it also offers a course of study with an emphases on

    asked by Henry2 on October 1, 2011
  61. Math

    A work crew of 3 people requires 3 weeks and 2 days to do a certain job. How long would it take a work crew of 4 people to do the same job if each person of both crews works at the same rate as each of the others? Note: each week contains six work days.

    asked by Nicole on September 10, 2009
  62. math

    6. A lottery offers two options for the prize. Option A: $1000 a week for life Option B: $ 600 000 in one lump sum. The current expected rate of return for large investment is 7%/a, compounded weekly. a. Which option would the winner choose if s/he expects

    asked by Chelsea on January 17, 2011
  63. Chemistry

    I have a question about buffers. Part A So it starts with 20ml 0.1 sodium acetate and 25ml 0.1 acetic acid. Calculate ph of buffer is 4.74 because the acid and conjugate base have the same molarity correct? So the Ph is just pKa (1.8e-5)? Part B So the

    asked by Rio on March 31, 2010
  64. English

    Identify the correct sentence. a) Please pick me up at five p.m. at night after work. b) Please pick me up at 5 p.m. after work. c) Please pick me up at 5 pm at night after work. d) Please pick me up at 5:00 p.m. after work. B

    asked by Kourtney on January 21, 2018
  65. Criminal Justice

    Compare and contrast state and local programs as they contribute to successful reintegration and transition services for women in the criminal justice system

    asked by Kay on October 9, 2011
  66. Geography

    conduct research to examine the sphere of influence of an organisation that renders a service in a community .eg.clinic,hospital,a local high school

    asked by sydney on July 25, 2011
  67. math calculus

    Find the intervals on which the function f(x)=x²/³(10-x) is increasing and decreasing. Sketch the graph of y=f(x)and identify any local maxima and minima. Any global extrema should also be identified.

    asked by Jay on April 18, 2016
  68. Math

    When you're finding the sign of f' and f'' to find a local maximum/minimum, concavity and inflection point where do you substitute the tangent/critical points? In which function? f(x), f'(x) or f''(x)?

    asked by Sam on December 4, 2008
  69. Math

    A person begins work at 9:00am on the east cost and ends their shift at 1:00 am on the pacific coast. How many hours did they work?

    asked by Rhonda on June 10, 2009
  70. PLEASEEEEEEEEEEEEE HELP. (GEOMETRY)

    A right triangle has hypotenuse 8 and area 8. Find the perimeter? I think I have to use Heron's Formula for this question. Please help & show work. Thank you very much. Your work is very much appreciated.

    asked by My Name Is Bob on March 27, 2012
  71. All

    I just wanted to give thanks to all of the people on this website for all of the hard work and time you have given to me and to others. I still have much work to do so I just hope you will continue to be there for me as well as others.Thank you and God

    asked by p on September 12, 2009
  72. Physics A

    how much work is being done a bookshelf being pulled 5 meters at an angle of 37 degrees from the horizontal? The magnitude of the component of the force that does the work is 43 Newtons

    asked by Maddie on November 21, 2012
  73. ethics

    Why do you think employers don't want you to use social networking sites at work? What would be the consequence of dressing inappropriately at your place of work? What would happen if someone did?

    asked by Anonymous on November 2, 2010
  74. physics

    Does the tension in the rope or chain of a swing do any work on a child who is swinging? No. Work is done when the force is applied in the direction of motion.

    asked by mitch on September 30, 2006
  75. GIVE ME A JOB

    WHY CAN`T KIDS WORK? Here is something that may be interesting to you and provide some answers to your question. (Broken Link Removed) Because if they were alowed to work they would be exploited like they used to be.

    asked by KENDELISHA on October 14, 2006
  76. socials

    what be the relationship between female literacy and reduced birth rates? that be the more education they get the less kids they have because their concentration go towards work so they work to be independent.

    asked by Mohammad on January 13, 2012
  77. mechanics_ physics

    A trolley is use in pushing a book 1.20m along a horizontal table top with a horizonta force of 3.0N. The opposing force of friction is 0.6N. 1. How much work does his 3.0N force 2.what is the work done on the book by the friction? The total work done on

    asked by precious on January 6, 2013
  78. Physics

    The work required to stretch a certain spring from an elongation of 4.11 cm to an elongation of 5.11 cm is 32.0 J. (a) Is the work required to increase the elongation of the spring from 5.11 cm to 6.11 cm greater than, less than, or equal to 32.0 J? (b)

    asked by Carden on March 29, 2010
  79. physics

    Part 1 A 15.6 kg block is dragged over a rough, hor- izontal surface by a constant force of 72.2 N acting at an angle of angle 34.8 above the horizontal. The block is displaced 24.6 m and the coefficient of kinetic friction is 0.234. Find the work done by

    asked by erika on February 25, 2011
  80. math

    Dominoes pizza offers 30 different types of pizza and 9 of them contain pepperoni. what percentage of their total number of pizza types have pepperoni on it? Can someone explain to me the procedure please

    asked by jazmin on November 3, 2011
  81. math

    you are going to open a certificate of deposit $500 for 3 years with 2% interest. another bank offers a CD in which you must deposit $250 for 4 years with 3% interest. Which CD will earn more interest.

    asked by Taylor on September 10, 2013
  82. college physics

    Two workers are loading crates onto a pick up truck. Worker 1 lifts his crate straight up from the ground to the truck. Worker 2 slides his crate up a ramp which has frictionless rollers. Which statement is true about the work being done on the crate? a.

    asked by matt on October 5, 2010
  83. time n work

    a and b together can do a piece of work in16 days.b and c can do same work in 32 days.after a worked for 4 days and b for 12 days c takes it up and finishes it in 48 days.in how many days will each of them complete work

    asked by Navami on June 24, 2014
  84. Sociology

    Scenario 1: The trip scheduled for Mexio during spring break has been cancelled due to the bankruptcy of the bus company. You must tell 25 of your classmates that the trip has been cancelled and that they have lost their $100 deposit. How will you convey

    asked by Peaches on July 10, 2008
  85. math & finance

    A bank offers a rate of 5.3% compounded semi-annually on its four year GICs(Guaranteed Investment Certificates). What monthly and annually compounded rates should it quote in order to have the same effective interest rate at all three nominal rates?

    asked by Thara on July 30, 2009
  86. Compound Interest

    A bank offers a rate of 5.3% compounded semi-annually on its four year GICs(Guaranteed Investment Certificates). What monthly and annually compounded rates should it quote in order to have the same effective interest rate at all three nominal rates?

    asked by Math on July 24, 2009
  87. compounded interest

    A bank offers a rate of 5.3% compounded semi-annually on its four year GICs(Guaranteed Investment Certificates). What monthly and annually compounded rates should it quote in order to have the same effective interest rate at all three nominal rates?

    asked by Thara on July 30, 2009
  88. critical reading

    pls help me with this question. 1.the premises of an argument are the assertions and the evidence that the author offers in support of the conclusion. true or false. i think is true but an not sure. 2.The factors that influence newsworthiness are based on

    asked by faith on September 7, 2011
  89. human services

    what would be the definition for the words problem, policy, and programs for health and human services? would you say problems.. what a person is going through? policy.. being what the agency has to follow such as guidelines and programs... things the

    asked by alley on October 20, 2007
  90. College Physics

    (a) How many hours does it take him to work off a 450 Calorie bagel if he stays in bed all day? (b) How long does it take him if he's working out? 2 h (c) Calculate the amount of mechanical work necessary to lift a 126 kg barbell 2.10 m. 3 J (d) He drops

    asked by Maria on November 24, 2014
  91. PHYSICS

    Determine the resulting temperature when 1kg of ice at 0 Degree celcius is mixed with 9kg of water.

    asked by JOE on April 12, 2015
  92. physics

    200g of steam at 110°C is condensed, and the resulting water is frozen into ice at 0°C. How much heat was removed?

    asked by robert on May 1, 2017
  93. physics

    How many calories of heat are required to convert 230 grams of ice at -10.0C to a gas with a temperature of 1500C?

    asked by michelle on November 15, 2011
  94. Science

    Which reaction is exothermic? A. Cellular respiration B. Photosynthesis C. Baking soda + vinegar D. Melting Ice***

    asked by Ally on February 24, 2016
  95. Physics

    If the visible part of an ice berg is 50mx50m in area and 20m is above the surface, what is the height, h? I tried using FB=FG but I don't get anywhere. Can anyone help me out?

    asked by George on October 11, 2013
  96. physics

    a hockey puck is sliding freely across a pound of friction ice. What is the free-body diagram?

    asked by adilene on September 22, 2011
  97. Physics

    I have an ice cube :3000 KG,the tempereture is about 50 (cel).would you please let me know how much does it take long for it to change into water ,Hourly Basis ? Regards

    asked by Ali on August 27, 2007
  98. physics

    A cube of ice, 28 cm on each side, is melted into a measuring cup. What is the volume of the liquid water? ------cm3

    asked by Katelyn on November 5, 2016
  99. Physics

    Why do some cooks put ice in the pot to cook meat? Explain then prove your answer by solution.

    asked by Anonymous on December 2, 2013
  100. Physics

    Steam of mass 11.0 g at 100°C is added to 114.8 g of ice at 0.00°C. Find the final temperature of the system.

    asked by Joseph on November 14, 2012