1. Chemistry - Heat of Fusion

    When water is frozen into ice cubes in the freezer, where does the released heat go? I think it just goes into the air in the freezer, nowhere special. Because won't the heat become cold air then? That's right. The heat just adds to the heat load that the

    asked by M and V on April 24, 2007
  2. Health (Ms. Sue)

    Describe what you would do if you saw a co-worker committing serious safety violations at work. A: If I saw a co-worker committing serious safety violations at work, there are several actions I would take. First, I would advise this co-worker to not commit

    asked by Anonymous on January 7, 2014
  3. Physics

    At the top of a frictionless inclined plane, a .50 kilogram block of ice possesses 6.0 joules of gravitational potential energy with respect to the bottom of the incline. After sliding halfway down the plane, the block's gravitational potential energy is?

    asked by Gonzalez on January 16, 2012
  4. Organic Chemistry

    Separation scheme for isolating benzoic acid Could you please show me a separation scheme for isolating benzoic acid from a reaction mixture if mixing a Grignard reagent phenylmagnesium bromide with dry ice (CO2) in ether? Thanks!

    asked by Jessica on October 22, 2010
  5. Chemistry

    The heat of combustion of bituminous coal is 2.5 x 10^4 J/g. What quantity of coal is required to produce the energy required to convert 100. Pounds of ice at 0.0 degrees Celsius to steam at 100.0 degrees Celsius? Is the answer 5.36 about right. I'm not

    asked by Lucy on January 7, 2015
  6. Physic

    If 0.045 kg of ice at 0 C is added to 0.390 kg of water at 34 C in a 0.150 kg aluminum calorimeter cup, what is the final temperature of the water? If the final equilibrium temperature is 21 C and no heat is lost to the cup itself or the environment, what

    asked by Anonymous on May 8, 2011
  7. Science

    Separation scheme for isolating benzoic acid Could you please show me a separation scheme for isolating benzoic acid from a reaction mixture if mixing a Grignard reagent phenylmagnesium bromide with dry ice (CO2) in ether? Thanks!

    asked by Jessica on October 22, 2010
  8. physics

    A 38 kg girl and an 8.4 kg sled are on the frictionless ice of a frozen lake, 16 m apart bu connected by a rope of negligible mass. The girl exerts a horozontal 4.7 force on the rope. (a) What is the acceleration of the girl? m/s2 (b) What is the

    asked by johnny on December 11, 2008
  9. Physics

    A player strikes a hockey puck giving it a velocity of 47.673 m/s. The puck slides across the ice for 0.175 s after which time its velocity is 46.473 m/s. The acceleration of gravity is 9.8 m/s2 . If the puck strikes the goalie’s pads and stops in a

    asked by Chris on January 8, 2011
  10. Math

    The local election is over and a new mayor has been elected to lead Big Town. The new mayor received three votes for every vote received by her opponent. The new mayor received 2,541 votes. How many votes did her opponent receive?

    asked by Julia on January 1, 2014
  11. Chemistry

    1) how many joules are required for each of the following? A)Heating 55g of water from 12 degree Celsius to 76 degree Celsius B) Melting 12.8g of ice at 0 degree Celsius. c) Boiling 21.1 g of water at 100 degree Celcius

    asked by Keliane on November 11, 2016
  12. Science

    A calorimeter of water equivalent 50g contains 250g of water and 50g of ice at 0 degree celsius, 30 g of water at 80 degree celsius is added to it. The final condition in the system will be

    asked by Om Gopal Mishra on July 21, 2017
  13. science

    fallow a drop o water through three states of matter. describe what is happening to the molecules as the water turns to gas than describe what is happening to the molecules when the water freezes into ice

    asked by valerie on March 4, 2008
  14. physics

    The rings of a Saturn-like planet are composed of chunks of ice that orbit the planet. The inner radius of the rings is 78,000 km, while the outer radius is 190,000 km.The mass of this planet is 6.14 * 10^26 kg.

    asked by physss on December 15, 2010
  15. physics

    A 60 kg woman and an 85 kg man stand 9.0 m apart on frictionless ice. (a) How far from the woman is their CM? (b) If each holds one end of a rope, and the man pulls on the rope so that he moves 1.1 m, how far from the woman will he be now? (c) How far will

    asked by Ashley on February 28, 2012
  16. Honors Chem

    If I make an ice pack with 750 mL of water, what mass of ammonium chloride must I include to get the temperature to drop from 20 degrees celsius to 5 degrees celsius. The heat of solution of the water and ammonium chloride is 14.8 kJ/mole. I just need help

    asked by Ella on December 2, 2014
  17. English Improving writing

    please take a look at this thanks Prewriting Paragraph 1 The problem is Jack and Rachel often have nothing to do Bonnie and Molly are working extra and have to work over time Melanie and Jessica share an administrative assistant Larry's assistant only

    asked by Kaleigh-Anne on July 9, 2008
  18. physics

    In a local bar, a customer slides an empty beer mug down the counter for a refill. The bartender is momentarily distracted and does not see the mug, which slides off the counter and strikes the floor at distance d from the base of the counter. The height

    asked by eric on February 18, 2011
  19. physics

    A 2 N neuton force is applied to a a2.5 Kg dry ice puck that moves frictionlessly across a desktop. If the puck starts at rest, how fast will it be moving after the force is applied? If the puck were moving at 0.6 m/x, how long would it take to bring the

    asked by Thena on April 6, 2013
  20. Chemistry II

    Calculate the energy pulled from 500 grams of Water at 20.0 degrees Celsius to Ice at 0.0 degrees Celsius. What happens to the energy? How much Freon-11 must circulate through the freezer in order to freeze the 500 gram sample of Water?

    asked by Mary on January 20, 2011
  21. chemistry

    If I make an ice pack with 750 mL of water, what mass of ammonium chloride must I include to get the temperature to drop from 20 degrees celsius to 5 degrees celsius. The heat of solution of the water and ammonium chloride is 14.8 kJ/mole.

    asked by Anna on November 14, 2010
  22. Math

    Janice and Patricia each want to buy a new DVD player. They go to the Hot Electronics and find a DVD player for $75. Hot Electronics offers a different payment plan. Janice is going to pay $15 now, and then $7.50 per month. Patricia is going to pay $12.50

    asked by Jerald on November 12, 2013
  23. Calculus

    A 20 meter long steel cable has density 2 kg per meter. It is hanging straight down. There is a 100 kg bucket of concrete attached to the bottom. How much work is required to lift the bucket 10 meters by lifting the cable ten meters? Gravitational force

    asked by Andre on January 1, 2016
  24. Economics

    The formula given was: (real rate of interest) = (nominal rate of interest) - (expected rate of inflation) A chartered bank offers a one-year loan at "3 points above prime." Prime is 4 per cent. a) What is the nominal interest rate? b)If expected inflation

    asked by Seinna on May 17, 2012
  25. geography

    Which polar region contains more land? Well, since the northern polar region is floating on top of the Artic ice sheet and has no land under it. My answer is the Southern polar region has more land. It has Antartica. Correct?

    asked by Reed on September 29, 2010
  26. Physics

    How much heat must be added to 1-kg of 0 degrees Celsius water to turn it into water at 50 degrees Celsius? If the water had been ice at 0 degrees Celsius, would that increase, decrease, or not change the amount of energy required?

    asked by Teresa on October 24, 2016
  27. Writing Sentences and Paragraphs

    Here is my Paragraph 1 , It is my good copy just wanna a final check before I submit it. PARAGRAPH 1 According to the job listing in The Daily News, I understand you are seeking a Medical Administrative Assistant to work in Fletcher Allen Hospital in

    asked by Shawna on January 8, 2012
  28. military , math

    your squad just completed a 12 mile road march inf our hours flat. Althogether there were 15 check points, to include the road march completion point. what was the average time in minutes between checkpoints? 32 26.6 16 8 How many barrels does it take to

    asked by jake123 on April 5, 2007
  29. PHYSICS

    To see how two traveling waves of the same frequency create a standing wave. Consider a traveling wave described by the formula y1(x,t)=Asin(kx−ωt). This function might represent the lateral displacement of a string, a local electric field, the position

    asked by SENDICA on December 15, 2015
  30. Physical science

    A simple lever is used to lift a heavy load. When a 58-N force pushes one end of the lever down 1.1 m the load rises 0.14 m. How much work is done by the 58-N force? What is the gain in potential energy of the load? How does the work done compare to the

    asked by Jennifer on September 14, 2016
  31. Physics

    After an unfortunate accident at a local warehouse you have been contracted to determine the cause. A jib crane collapsed and injured a worker. The horizontal steel beam had a mass of 88.50 kg per meter of length and the tension in the cable was T = 11.78

    asked by Morgan on November 15, 2011
  32. Social studies

    How have the Piedmont region's physical features influenced its local economy? my answer A. In places, it has rocky soil that is better for manufacturing than farming.*** B. The hilly land makes it difficult to transport goods, which limits economic

    asked by help plzplzplz on August 19, 2015
  33. English

    Where can I buy MONOPOLY? In RITE AID STORE do they have MONOPOLY? Thank you for using the Jiskha Homework Help Forum. Here is one discount toy store that has different Monopoly games: http://www.discountanimetoys.com/board-games-monopoly-board-games.html

    asked by Sheela on December 30, 2006
  34. English final draft

    Please take a look at this for me it is marked Final however it may not be There are on- going problems that need to be addressed at the DMD company. First there is uneven allocation of tasks. While Bonnie and Molly are working overtime at least twice a

    asked by Kaleigh-Anne on June 20, 2008
  35. ACCOUnting

    Chen Company manufactures basketballs. Materials are added at the beginning of the production process and conversion costs are incurred uniformly. Production and cost data for the month of July 2010 are as follows. Production Data-Basketballs Units Percent

    asked by BILLY on November 14, 2011
  36. math

    During a sale at the local department store, you buy three sweatshirts and two pairs of sweatpants for $85.50. Later you buy three more sweatshirts and four more pairs of sweatpants for $123.00 What is the sale price of each sweatshirt and each pair of

    asked by robin on November 13, 2011
  37. Physics

    A 15.3 kg block is dragged over a rough, horizontal surface by a constant force of 130 N acting at an angle of 26.4◦ above the horizontal. The block is displaced 16 m, and the coefficient of kinetic friction is 0.1. Find the work done by the 130 N force.

    asked by gababa on December 10, 2014
  38. Math- Still Don't Understand!

    I do not understand how to work this problem out. I have a series of other questions that are similar, and it would really help me out if someone could help me understand how to work this problem. At the first tri-city meeting, there are 8 people from town

    asked by Janet on December 6, 2009
  39. math

    It takes Natasha 20 min to drive to work in the morning. She drives home using the same route, but it takes 11 min longer, and she averages 6 mi/h less than in the morning. How far does Natasha drive to work?

    asked by Anonymous on August 14, 2017
  40. algebra

    It takes Maggie 20 min to drive to work in the morning. She drives home using the same route, but it takes 13 min longer, and she averages 8 mi/h less than in the morning. How far does Maggie drive to work?

    asked by john on October 13, 2017
  41. Physics

    An airplane passenger carries a 260 N suitcase up the stairs, a displacement of 3.80 m vertically, and 4.30 m horizontally. (a) How much work does the passenger do? (b) The same passenger carries the same suitcase back down the same stairs. How much work

    asked by Iklishi on November 7, 2011
  42. English help

    add the comma to the sentence As they studied the film they noticed some rules of science at work i wrote mine like this As they studied the film, they noticed some rules of science at work

    asked by Abbey on March 5, 2013
  43. physics

    a motorist runs out of gas and must push his 3000kg car across a flat road 200m to the gas station. ignoring friction how much work must be done in order to get the car to the gas pump? if the motorist accomplishes this in 10 minutes, how much power has he

    asked by matt on January 8, 2011
  44. Math

    1 Write the fraction one-eighth as a percent. Round to the nearest hundredth of a percent where necessary. (1 point) 12.50% 37.50% 62.50% 80.00% 2 Write the decimal 0.063 as a percent. (1 point) 0.63% 6.30% 63% 630% 3 After a study was completed at a local

    asked by math HELP! on November 30, 2015
  45. improving your writing

    Ten years ago, you started working as a clerk for DMD Medical Supplies. Six months ago, Liz Jakowski, the human resources director, promoted you to office manager. You manage two employees: Jack Snyder and Ruth Disselkoen. Your office provides secretarial

    asked by Anonymous on September 8, 2013
  46. Physics

    I need help solving the problem below. Please respond. At the local swimming hole, a favorite trick is to run horizontally off a cliff that is 8.9 m above the water. One diver runs off the edge of the cliff, tucks into a "ball," and rotates on the way down

    asked by Jim on March 14, 2007
  47. Engineering

    You find out you need a pallet of 14 bags of seed that weigh 50 lbs each. You know the pallet itslef weighs 44lbs. The CO-OP forklift takes 30 seconds to move the pallet and bags of seed the 60 feet to the back of your truck. A) How much power does the

    asked by Matt on October 12, 2006
  48. English

    Three examples of how virtue may be used in everyday life? Would: My friend was very virtue today, be a good example? Are there other examples I could put? Four words that virtue can replace in everyday life? Would Happy, Excited work? what are two other

    asked by Lily on November 19, 2008
  49. Physics

    A.) How much work must be done in order to compress a spring with an elastic constant of 400 lb / in and 1.75 inches? *Note: 1.75" is the compression & 400#/in is the k constant. B.) If 50 ft lbs of work is done on the same spring (in part a) in order to

    asked by Need some help on the set-up, Please! on May 8, 2014
  50. Physics

    A.) How much work must be done in order to compress a spring with an elastic constant of 400 lb / in and 1.75 inches? *Note: 1.75" is the compression & 400#/in is k the constant. B.)If 50 ft lbs of work is done on the same spring (in part a) in order to

    asked by Adam - Require Help Please - Set-up Concerns on May 8, 2014
  51. Marketing

    1. How should Cathay develop and market its global im-age without diminishing its local/regional identity as the Hongkong (and China) carrier? 2. Should cathay focus on China by attempting to develop it further or instead focus on the overall global

    asked by wendy on April 15, 2013
  52. English

    Can you please tell me if everything is possible? Thank you. 1) Mickey hasn't finished the washing up, yet. He is late for the audition and Storm offers to do the washing up for him. She reminds him that on his first day in London he told her that he

    asked by Franco on November 7, 2010
  53. Literature

    'Look around your community's sidewalks, streets, transportation system, and public buildings. How easily can a person with a disability get around? Write a letter to the editor of your local newspaper expressing your views about what changes need to be

    asked by mysterychicken on December 29, 2009
  54. Finance

    Mr Joe is trying to plan for retirement in 10 years, and currently he has RM150,000 in a saving account and RM250,000 in common stocks. In addition, Mr Joe plans to add to his savings by depositing RM8,000 per year at the end of each year for the last 5

    asked by Noorain on November 18, 2015
  55. Math

    In a recent survey 56% of students at MacNab High School work a part time job during the school year. If there are 378 students in the school, is 125 , 200 or 560 a reasonable estimate for number of students who work part time during the school year?

    asked by Vei on October 20, 2017
  56. College Algebra

    Here is the whole question... I have figured most of it out but I need help with part (b)(f) and (g)... Maybe you also check the work I have already done Given the following function, find: (a) vertex, (b) axis of symmetry, (c) intercepts, (d) domain, (e)

    asked by Sunny on January 4, 2012
  57. chem

    ive tried the ice method but i keep on getting it wrong please help. If the initial pressure of NH3(g) is 3.168 atm, calculate the % decomposition of NH3(g) when the reaction comes to equilibrium according to the balanced equation. The value of Kp at 427.0

    asked by Anonymous on October 2, 2016
  58. history

    What vital right did the Spanish allow the Western farmers? Answer: It was that Spain allowed Americans to travel on the lower Mississippi to New Orleans and to ship their goods. "cORRECT right??" mmhmm Can you help me out with this one???? Did you ever

    asked by Mack on April 29, 2007
  59. Chemistry

    The heat of combustion of bituminous coal is 2.5 x 10^4 J/g. What quantity of coal is required to produce the energy required to convert 100. Pounds of ice at 0.0 degrees Celsius to steam at 100.0 degrees Celsius?

    asked by Lucy on January 6, 2015
  60. physics

    A 29 g ice cube at 0.0°C is added to 110 g of water in a 62 g iron cup. The cup and the water have an initial temperature of 25°C. (a) Find the equilibrium temperature of the cup and its contents. i don't understand how the iron cup changes the

    asked by steven on April 26, 2010
  61. Physics

    A block of mass m = 5.0 kg is pulled along a rough horizontal surface by a rope as sketched in the figure below. ( rope is at a 30 degree angle from the horizontal) The tension in the rope is 50 N, and the coefficient of kinetic friction between the block

    asked by Wrenn on October 14, 2015
  62. math

    John O'Sullivan has just completed his first year in business. His records show that he spent the following in advertising: Newspaper $500 Radio $800 Yellow Pages $875 Local flyers $650 What percent of John's advertising was spent on the Yellow Pages?

    asked by michael on March 9, 2009
  63. statistics

    At a local manufacturing plant, employees must complete new machine set ups within 30 minutes. New machine set-up times can be described by a normal model with a mean of 22 minutes and a standard deviation of four minutes. a. What percent of new machine

    asked by Anonymous on April 12, 2011
  64. Calculus

    The tank shown is full of water. Given that water weighs 62.5 lb/ft3, find the work required to pump the water out of the tank. The tank shown is a hemisphere with r = 5 ft. The water is to be pumped out at the top. First I solved for ri, ri / (5 - xi) = 5

    asked by COFFEE on June 24, 2007
  65. Financial Accounting

    Account for warranties. Key Company offers a three-year warranty on its premium door locks. During the year, the company had sales of $100,000. Related to the sales, warranty costs should be approximately $3,000 per year. How much warranty expense related

    asked by Tammy smith on May 26, 2013
  66. English Improving writing rough draft

    Please take a look at this this is what I am turing in (tomorrow) Prewriting Prewriting Paragraph 1 The problem is Jack and Rachel often have nothing to do Bonnie and Molly are working extra and have to work over time Melanie and Jessica share an

    asked by Kaleigh-Anne on July 4, 2008
  67. english

    I need someone's help on editing my paragraph.... OPC is a great place for an athlete because OPC offers many options for the athletes and don’t forget about their countless banners. OPC as school give the athlete’s the opportunity to choose from a

    asked by Jim on March 30, 2015
  68. Poetry

    So this is just to double check to make sure all of these figures of speech are right. METAPHORS- thunder roared and shot crackling spears, as vicious hills unfolded, piercing wind howled in my ears, thunder crackled and exploded, and shot blinding

    asked by Mystery chicken on December 12, 2010
  69. Physics

    A dockworker applies a constant horizontal force of 90.0Nto a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 12.0min a time of 5.20s.If the worker stops pushing after 5.20s,

    asked by Karina on October 5, 2012
  70. physic:(

    Two ice skaters, Daniel (mass 70.0 ) and Rebecca (mass 45.0 ), are practicing. Daniel stops to tie his shoelace and, while at rest, is struck by Rebecca, who is moving at 14.0 before she collides with him. After the collision, Rebecca has a velocity of

    asked by roro on December 13, 2011
  71. Chemistry

    A 50.0 mL aqueous solution of sodium hydroxide has a pH of 12.50. If 36.00 ml of 0.0200 mol/L sulfuric acid is added to this sodium hydroxide solution, what will be the new pH of the resulting solution? Assume that the temperature stays constant at 25 C,

    asked by Jacob on December 12, 2016
  72. Chemistry

    At 22 °C an excess amount of a generic metal hydroxide M(OH)2, is mixed with pure water. The resulting equilibrium solution has a pH of 10.56. What is the Ksp of the compound at 22 °C? I have found my [OH-] concentration (3.63x10^-4) but I'm not sure I'm

    asked by Miaow on April 1, 2012
  73. algebra/functions

    recent estimates indicate that the area covered by glaciers has decreased from over 25.5 km^2 in 1850 to about 16.6 km^2 in 1995. Let A=f(t) give the area t years after 2000, and assume that f(t)=16.2-0.062t. How much glacier area disappears in 15 years?

    asked by luckybee on January 29, 2012
  74. FACS - Reading Assignment Help!

    7. Explain - Why is it important to evaluate the work plan? What might happen if team members fail to evaluate it? Answer - The reason why it's important to evaluate the work plan is because so that they understand what did correctly, what could be

    asked by Laruen on April 23, 2012
  75. Math

    Please show your work thanks for your help. Eric works in a factory where he earns $9.24 an hour. He receives time and a half for over time and double time for work on Sunday. He worked 52 hours this week , with eight hours of overtime and four hours on

    asked by Anonymous on November 9, 2007
  76. Math

    16) Consider the function f(x)=2x3−6x2−90x+5 on the interval [−6,7]. Find the average or mean slope of the function on this interval. By the Mean Value Theorem, we know there exists at least one c in the open interval (−6,7) such that f′(c) is

    asked by Hailey on October 20, 2014
  77. Physics

    A shopper pushes a grocery cart for a distance 18 m at constant speed on level ground, against a 25 N frictional force. He pushes in a direction 24° below the horizontal. What is the work done on the cart by the shopper, in joules? Magnitude of the force,

    asked by TT2014 on March 23, 2015
  78. math133

    ) Solve algebraically and check your potential solutions: sqrtx+2+0 Answer: Show your work here: 3) The volume of a cube is given by V = s3, where s is the length of a side. Find the length of a side of a cube if the volume is 800 cm3. Round the answer to

    asked by michelle on May 30, 2010
  79. Physics

    An 8 kg ball is moving at 4 m/s. Work is done on the ball to give it a speed of 12 m/s. What is the ball's initial kinetic energy? What is the ball's final kinetic energy? What work was done on the ball?

    asked by Jai on July 11, 2013
  80. Business

    You are being interviewed for a business consultant position, and your interviewer has asked you to discuss which social responsibility approach you believe the following scenarios fall into obstructionist, defensive, accommodative, or proactive. Please

    asked by Yvonne on July 10, 2008
  81. ELA

    Think about the work you completed in your reading character role. Determine the ideas that would be most worthy to share in a literary discussion about Johnny Tremain. Provide an explanation for your choices. How did the role you selected and the work you

    asked by jules on December 12, 2017
  82. physics

    1. A boy drags a wooden crate with a mass of 20 kg, a distance of 12 m, across a rough level floor at a constant speed of 1.50 m/s by pulling on the rope tied to the crate with a force of 50 N. The rope makes an angle of 25¡ã with the horizontal. a.What

    asked by annie on October 24, 2011
  83. Physics

    In an empty rubber raft the pressure is approximately constant. You push on a large air pump that pushes 1.0 L(1.0× 10^−3m3) of air into the raft. You exert a 17N force while pushing the pump handle 3.0×10^−2m . Determine the work done on the gas. If

    asked by Anonymous on April 26, 2015
  84. Organic Chemistry 2

    What is the impurity that must be removed from the benzaldehyde reagent before it can be used in this experiment? this is from are Benzil lab in this lab, benzoin condensation of benzaldehyde will be carried out with a biological coenzyme, thiamine

    asked by John on November 8, 2015
  85. Shakespear

    Read the exchange between Romeo and Nurse in Act II, scene iv of Romeo and Juliet. Romeo: Bid her devise Some means to come to shrift this afternoon; And there she shall at Friar Laurence’ cell, Be shriv’d and married. Here is for thy pains. Nurse: No,

    asked by Danny G on March 22, 2015
  86. Ap Physics

    An escalator in a shopping centre carries people up through a height h at a vertical speed of v, but you’re in a hurry when you step onto it, so you climb the moving steps (each with a height of hs) at a rate of n steps/s. Determine: the amount of

    asked by Thando on April 23, 2014
  87. Statistics

    At a local manufacturing plant, employees must complete new machine set ups within 30 minutes. New machine set-up times can be described by a normal model with a mean of 22 minutes and a standard deviation of four minutes. b. The typical worker needs five

    asked by Anonymous on April 12, 2011
  88. AP Algebra

    A man's average speed is 4.86 miles per hour. Express this in cm/sec .*dimensional analysis* .. the teacher answer is "217.32 cm/sec" however mine came out to be "217.26" My work: (4.86m/hr)(5280ft/1m)(12in/1ft)(2.54cm/1in)(1hr/3600sec) = 217.26cm/sec Why

    asked by Karen on September 2, 2015
  89. chemistry

    NaCl (aq) + NH3(aq) + H2O(l) + CO2(s) --> NH4Cl(aq) + NaHCO3(s) because they are relatively cheap, sodium chloride and water are typically present in excess. what is the expected yield of NaHCO3 when one performs such a synthesis using 10.0 g of ammonia

    asked by Naila on June 10, 2010
  90. physics

    an ice skater starts her spin with her arms stretched straight out. She then pulls her armsin close to her body. Assume her moment of inertia when her arms are stretched out is 3.0 kg-m sqaured and it is 2.0 kg-m squared when she pulls them in tight. If

    asked by Billy Bundles on December 10, 2014
  91. Economics

    Which one of the following statements is correct under the theory of supply-side economics? A. High marginal tax rates severely discourage work, saving, and investment. B. Transfer payments increase incentives to work. C. Increases in social security taxes

    asked by Fatima on May 21, 2018
  92. Chemistry

    i need help. Calculate the pH of a 0.24 M CoCl3 solution. The Ka value for Co(H2O)63+ is 1.0 10-5. how do u do these with like the Cl there? Responses Chemistry - DrBob222, Monday, February 16, 2009 at 12:35am Just ignore the Cl^-. Co(H2O)6Cl3 ==>

    asked by Lindsey on February 16, 2009
  93. Math

    A local citizen wants to fence a rectangular community garden. The length of the garden should be at least 110 ft, and the distance around should be no more than 380 ft. Write a system of inequalities that models the possible dimensions of the garden. a.

    asked by Kaai97 on January 20, 2016
  94. I have a few science Questions I need checked, Plz

    Hi Guys, so, I only have 2 questions, But, I'm a little confused on all of them, could someone check for me One of the ways humans can preserve biodiversity Is habitat destruction habitat preservation*** habitat fragmentation poaching A country comissioner

    asked by Elizabeth on December 7, 2017
  95. Calculus

    Find and classify the relative maxima and minima of f(x) if f(x)= defint a=0 b=x function= t^2-4/(1+cos(t)^2) dt x^2-4/(1+cos(x)^2)= 0 x^2-4=0 x^2=4 x= +/- 2 So I got relative maximum as -2 and 2. And relative minimum as zero. However, when I graph it on

    asked by Eric on May 20, 2013
  96. Minima Maxima

    Find and classify the relative maxima and minima of f(x) if f(x)= defint a=0 b=x function= t^2-4/(1+cos(t)^2) dt x^2-4/(1+cos(x)^2)= 0 x^2-4=0 x^2=4 x= +/- 2 So I got relative maximum as -2 and 2. And relative minimum as zero. However, when I graph it on

    asked by Eric on May 18, 2013
  97. Physics

    Please help. To cool a hot bath containing 50L of water at 50 degrees Celsius down to 20degrees Celsius, what volume of cold water at 5 degrees Celsius would be needed? (in litres) and what mass of ice at 0 degrees celcius would be needed? i'm thinking

    asked by Anonymous on June 23, 2015
  98. CHEMISTRY HELP! ICE TABLES?

    At a certain temperature, K = 9.1 10-4 for the following reaction. FeSCN2+(aq)= Fe3+(aq) + SCN -(aq) Calculate the concentrations of Fe3+, SCN -, and FeSCN2+ in a solution that is initially 4.0 M FeSCN2+. OKAY SO i started by doing an ice table with

    asked by Taylor on January 16, 2009
  99. chemistry

    A piece of dry ice (solid carbon dioxide) with a mass of 5.40 g is placed in a 10.0 L vessel? that already contains air at 715 torr and 25 degrees C. After the carbon dioxide has totally vaporized, what is the partial pressure of the carbon dioxide and the

    asked by Anonymous on May 1, 2013
  100. physics

    The escalator that leads down into a subway station has a length of 29.5 m and a speed of 1.6 m/s relative to the ground. A student is coming out of the station by running in the wrong direction on this escalator. The local record time for this trick is 11

    asked by Anonymous on October 17, 2010