1. word problem

    I have no clue on how to set up this equation please help. A car rental company offers two plans for renting a car. Plan A:21 dollars per day and 18 cents per mile Plan B:25.44 dollars per day and 15 cents per mile If you plan to rent the car for one day.

    asked by james on May 4, 2017
  2. math

    Bayside insurance offers two health plans. Under plan A, Giselle would have to pay the first $160 of her medical bills, plus 25% of the rest. Under plan B, Giselle would pay the first $200, but only 20% of the rest. For what amount of medical bills will

    asked by Ember on September 18, 2009
  3. first steps in using a personal computer

    alphonus and larry are discussing start menu commands.alphonus will go to the control panel to see a display of all local and remore drives.larry will go to computer to make changes to some computer settings.who is correct a.neither b.both c.alphonus

    asked by susue on November 13, 2013
  4. geometry

    On July 16, 1882, a massive thunderstorm of Dubuque, Iowa, produced huge hailstones. The diameter of some of the hailstones was 17 inches. Ice weighs about 0.033 pounds/inches cubed. What was the approximate weight of these hailstones to the nearest pound?

    asked by Helena on March 25, 2015
  5. physics

    A sled of mass m is given a kick on a frozen pond. The kick imparts to it an initial speed of 2.80 m/s. The coefficient of kinetic friction between sled and ice is 0.150. Use energy considerations to find the distance the sled moves before it stops.

    asked by Emily Tran on November 19, 2012
  6. Chemisty

    In an experiment, 230 kJ of heat energy are released to the surroundings when steam is converted to liquid water. Calculate the number of grams of water condensed. The following data may be of use: vap = 2260 J/g; Hfus = 334 J/g; Cp(ice) = 2.06

    asked by Stephen on April 8, 2010
  7. science

    A researcher put 10.0 moles of N2O into a 2-L container at some temperature where it decomposes according to the following: N2O = 2N2+ O2. At equilibrium 2.20 moles of N2O remain. Calculate the Kc for the reaction. How am I supposed to fill in the ICE

    asked by Laury on April 6, 2017
  8. Math

    Homework grades are 5% of the overall grade. Lab work is 15% of the overall grade. Tests are 60% of the overall grade. The Final is 20% of the overall grade. Could a student that has a 75 homework average, 80 lab average, 40 test average, and 50 on the

    asked by Veronica on September 20, 2006
  9. Physics

    A pitcher throws a fast ball with a speed of 45m/s. The ball has a mass of 0.145kg. How much a) kinetic energy is given to the ball and b)What work was done in throwing the ball? Vo=45 m/s Mass= 0.145kg A) KE? KE= 1/2mV^2 A) 1.5x10^2 kg*m/s B) WK=Change in

    asked by Rosie on May 3, 2016
  10. Physics

    Speedboat (A) negotiates a curve whose radius is 115 m. Speedboat (B) negotiates a curve whose radius is 240 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of the boats? My physics optional extra work:

    asked by Ryan on September 30, 2016
  11. Chem lab last question!! Urgent help

    Commodity prices of NaCl and urea are about $0.033/lb for NaCl (as rock salt) and about $0.10/lb for urea. Calculate the cost of treating 1000 lb of ice on a surface to produce a solution that melts at -3.9 degrees Celsius with each chemical. I know you

    asked by K on February 27, 2013
  12. chemistry

    Commodity prices of NaCl and urea are about $0.033/lb for NaCl (as rock salt) and about $0.10/lb for urea. Calculate the cost of treating 1000 lb of ice on a surface to produce a solution that melts at -3.9 degrees Celsius with each chemical. I know you

    asked by K on February 27, 2013
  13. Physics

    A figure skater spins on the ice, holding two weights a distance d from the axis about which he is rotating.  At a certain time, he pulls these weights toward his body as shown, causing his rotational inertia to decrease by a factor of 2.  How does this

    asked by John on March 19, 2011
  14. please help me on chem

    Commodity prices of NaCl and urea are about $0.033/lb for NaCl (as rock salt) and about $0.10/lb for urea. Calculate the cost of treating 1000 lb of ice on a surface to produce a solution that melts at -3.9 degrees Celsius with each chemical. I know you

    asked by K on February 27, 2013
  15. grammar please help!

    I still need help on 1 and 2. Identify the object of the preposition in each of the following sentences. 1. Ashley and her father arrived home from work. a. and b. father c. from d. work 2. Ashley put her journalism books in the new bookcase. a. bookcase

    asked by Jade on May 1, 2013
  16. maths

    A pie graphs show the budget of 2 business for 2 different business.How do you work out the different expenses each month and Calculated the cost in Rands.1 company budget is R12000 and other is R9200.How do u work out the pie graphs .need to get the

    asked by zubeida on August 3, 2011
  17. Math

    Serena wanst to borrow $15 000 an pay it back in 10 years. Interest rates are so high, so the bank makes her 2 offers option 1 - borrow the money at 12%/a compounded quarterly for the full term option 2 -Borrow the money at 12%/a compunded quarterly for 5

    asked by Annie on January 10, 2012
  18. secend grad math

    if 3+x=6 what is x You can turn that around. Work it as a word family. 3 + ___ = 6 6 - 3 = ___ What do you think? ?? What number can be added to 3 to make 6? 3 + ? = 6? Sorry! I should have written "work it as a number family"!! =)

    asked by laura on June 12, 2007
  19. chemistry

    if PV=RT + ἁP where ἁ is a constant Calculate the work if the gas is heated at constant pressure from T1 to T2 Calculate the work if the gas is expanded isothermally and reversibly

    asked by noel on February 2, 2011
  20. Physical Science

    Judy (mass 45.0 kg), standing on slippery ice, catches her leaping dog, Atti (mass 12kg), moving horizontally at 4.0 m/s. Use the conservation of momentum to find the speed of Judy and her dog after the catch.

    asked by Shannon on September 19, 2013
  21. physics

    highway curve in northern Minnesota has a radius of 230 m. The curve is banked so that a car traveling at 21 m/s and will not skid sideways, even if the curve is coated with a frictionless glaze of ice. At what angle to the horizontal is the curve banked?

    asked by Anonymous on February 27, 2014
  22. economics

    The MidNight Hour, a local nightclub, earned $100,000 in accounting profit last year. This year the owner, who had invested $1 million in the club, decided to close the club. What can you say about economic profit (and the rate of return)in the nightclub

    asked by Wilbert on March 3, 2012
  23. math

    to build a 2.5 m by 3 m deck, a local building supply store chargers $1000 for materials, plus the carpenter's wage of $30/h. The store gives you an estimate of $1480 for the total cost. How much time is estimated for the carpenter to build the deck?

    asked by mellanni on June 15, 2014
  24. Science/Math

    Calculate the angle of incident of beam radiation on a surface located at 45 degree north and 89.4 degree longitude, at 2:41 pm clock time (local standard time) on February 3, if the surface is tilted 30 degree from the horizontal pointed 10 degree east of

    asked by Margaret Alire on September 17, 2012
  25. Managerial Economics

    The Midnight hour a local nightclub earned $100,000 in accounting profit last year. This year the owner, who had invested $1million in the club, decided to close the club. What can you say about economic profit (and the rate of return) in the nightclub

    asked by Dawn on June 4, 2008
  26. math

    A 1 1/2-pound piece of turkey costs $7.98. A 6-ounce package of the same sliced turkey costs $2.49. What is the difference in price per 3-ounce serving? 2)Jim earns $44,700 annually and pays 11-1/4% for state and local taxes. How much tax does he pay

    asked by angelika on July 1, 2010
  27. History

    All of the following are examples of how a local jurisdiction may have tried to inhibit African-Americans from voting prior to the Voting Rights Act, except: Poll Taxes Literacy Tests Intimidation and Violence Skin Color Comparison Tests Is the answer poll

    asked by Jim on May 8, 2009
  28. Econ - urgent please help

    Suppose local govt decides that a tax is the best way to address the inefficiency created by outdoor concerts. Assuming the social cost curve and the private cost curve are parallel to each other, how much does the tax on concerts have to be to achieve the

    asked by Anil on November 14, 2011
  29. Econ please help

    Suppose local govt decides that a tax is the best way to address the inefficiency created by outdoor concerts. Assuming the social cost curve and the private cost curve are parallel to each other, how much does the tax on concerts have to be to achieve the

    asked by Anil on November 13, 2011
  30. Stats

    The local lottery sets up a game wherein a player has a chance of collecting $750. The player must choose a 3-digit number and if it matches, the player receives $750 It costs $1 to play the game. What is the expected profit (or loss) for each player.

    asked by Andrew on April 28, 2008
  31. Math

    "All Items 20% Off Marked Price" is a sign at a local golf pro shop. Create a function and then use it to determine how much one has to pay for each of the following marked items: a $9.40 hat, a $13 umbrella, a $65 pair of golf shoes, a $12.60 golf glove,

    asked by Taylor on October 10, 2012
  32. Physics

    A 1.45 kg book is sliding along a rough horizontal surface. At point A it is moving at 3.25 m/s , and at point B it has slowed to 1.34 m/s . Part A How much work was done on the book between A and B? Part B If -0.750 J of work is done on the book from B to

    asked by Jamie on November 12, 2017
  33. algebra

    At a local gym, there is an initial fee of $59.95 to join the gym and a monthly membership fee. Sam and Maria both joined the gym. Their combined cost for 12 months was $1319.90. How much is the monthly fee?

    asked by Anonymous on October 21, 2013
  34. us history

    Imagine that you are a railroad worker in the late 19th century in America. The Great Railroad Strike of 1877 has just begun as you consider joining the local railroad labor union. Why are so many of your co-workers going on strike? Are you going to join

    asked by Veronica on July 3, 2010
  35. statistics

    In a local university,40% of the students live in the dormitories. A random sample of 80 students is selected for a particular study. What is the probability that the sample proportion (the proportion living in the dormitories) is between 0.30 and 0.50?

    asked by sandy on November 12, 2009
  36. math

    At a local high school,560 out of 1060 students voted to support a community fund drive. What percent of the students did not support the fund drive?

    asked by paulette on March 26, 2015
  37. maths

    the cost to travel in a local minibus is R2.50 for each trip and 50cent for each completed kilometre:what would a ticket cost for a journey of 24 kilometre (2):if nomthi paid R6.50 for her ticket how far did she travel

    asked by dimpho on August 25, 2015
  38. BUAL

    In a local university, 40% of the students live in the dormitories. A random sample of 80 students is selected for a particular study. The probability that the sample proportion (the proportion living in the dormitories) is at least 0.30 is

    asked by Anonymous on November 25, 2009
  39. educational statics

    the average SAT score at a local university is (=60, and standard is (x=50. Assume that the university SAT score has a normal distribution convert a student score x=700 into z score

    asked by sandra on July 11, 2011
  40. Algebra

    The number of dogs taken in daily at a local animal shelter increased from 4 in October, 2009 to 10 in January, 2010. Predict the number of dogs taken in daily in May, 2010.

    asked by Kimberly on May 10, 2011
  41. math

    the number of dogs taken in daily at a local animal shelter increased from 4 in october 2009 to 10 in january 2010. predict the number of dogs taken in daily in may 2010.

    asked by gloria on February 16, 2011
  42. Maths algebra

    Wilma went to the local market and bought 3 lemons and 5 oranges for $2.40.The same day and for the same price ,Fran bought 4 lemons and 7 oranges for $3.31.What was the prices per lemon and the price per orange?

    asked by firdous on May 5, 2013
  43. math

    the number of dogs taken in daily at a local animal shelter increased from 4 in october 2009 to 10 in january 2010. predict the number of dogs taken in daily in may 2010.

    asked by shantrese on February 15, 2011
  44. algebra 2

    if someone offers to pay you 1 penny on the first day, 2 pennies on the second day, 4 pennies on the third day, 8 pennies on the fourth day, 16 pennies on the fifth day ad so on. What is the first day on which your pay would be at least $100.

    asked by Kathy on April 9, 2014
  45. physics

    what is the difference between work and workdone I hope the following references will help you: http://www.ac.wwu.edu/~vawter/PhysicsNet/Topics/Work/DefinitionWork.html http://en.wikipedia.org/wiki/Mechanical_work

    asked by ada on November 25, 2006
  46. Math

    A very strong girl runs 200 miles east for several hours. After a brief rest she runs another 100 miles north. She stops for the night at a local bed and breakfast and the next morning walks 75 miles directly south-east. Find the magnitude and direction of

    asked by Kevin on November 23, 2010
  47. Math

    William earned $3,200 per month as a teacher for the ten months from September to June. Then he took a job as a barista at a local café, where he earned $2,000 per month during July and August. What was his average monthly pay for the 12 month? A. $2,400

    asked by Anonymous on February 4, 2014
  48. History

    What impact did imperial Spain have on the Americas? Spanish culture came to dominate and replace native cultures. Local leaders were replaced by Spanish parliamentary assemblies. Financing from Spain started the industrialization of the Americas.

    asked by a on August 3, 2018
  49. math

    Please show me how to solve: At the local ballpark, the team charges $5 for each ticket and expects to make $1,300 in concessions. The team must pay its players $1,800 and pay all other workers $1,500. Each fan gets a free bat that costs the team $3 per

    asked by Jane on December 29, 2011
  50. L.A

    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 anon on December 6, 2015
  51. Physics

    no idea all HELP appreciated!! A shot-putter puts a shot (weight = 70.3 N) that leaves his hand at distance of 1.45 m above the ground. (a) Find the work done by the gravitation force when the shot has risen to a height of 2.15 m above the ground. Include

    asked by Joe on October 19, 2009
  52. language art

    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 anon on January 15, 2015
  53. math

    At a local grocery store, lemons are 52 cents each and limes are 21 cents each. How many lemons and limes can you buy for exactly $3.75?

    asked by Anonymous on April 13, 2010
  54. civil education

    Identity and list at least five each. 1.major local civil problem 2.major world civil problem

    asked by Anonymous on November 26, 2017
  55. math

    at a local restaurant 45% of the customers order spaghetti. Estimate the probability that 6 of the next 10 customers will order spaghetti.

    asked by Tammy on August 19, 2011
  56. English

    1. I can't concentrate on work. 2. I can't concentrate at work. 3. I can't concentrate (on something) at work. ------------------ Which one is correct? Does #1 mean #3?

    asked by rfvv on June 18, 2016
  57. Microeconomics

    Lisa needs to buy a textbook for the next economics class. The price at the bookstore is $65. One online site offers the same book for $55 and another site for $57. All prices include sales tax. The following table indicates the typical shipping and

    asked by Sarah on March 4, 2009
  58. math - gr 12

    the social convenor has 12 volunteers to work at a school dance. Each dance requires 2 volunteers at the door, 4 volunteers on the floor, and 6 floaters. Joe and Jim have not volunteered before so the soicial convenor does not want to assign them to work

    asked by joanna on February 24, 2009
  59. Physics

    One boat tows another boat by means of a tow line, which is under a constant tension of 495 N. The boats move at a constant speed of 4.75 m/s. How much work is done by the tension in 1.10 min? Not sure how to apply the work-energy theorem. I assume

    asked by Help on October 4, 2011
  60. Physics

    A girl places a stick at an angle of 60.0° against a flat rock on a frozen pond. She pushes at an angle and moves the rock horizontally for 2.00 m across the pond at a velocity of 4.00 m/s and a power of 160.0 W. What force did she apply to the stick? How

    asked by Pat on February 12, 2012
  61. ipc

    A 95.00 kg man on ice skates catches a ball moving at 18 m/s. The man is initially at rest. The man and the ball move together after the collision. The ball's mass is 0.14 kg. What is the final velocity

    asked by nicole on October 20, 2016
  62. Physics

    A block of ice of mass 30 kg is at rest atop an inclined plane of vertical height 2 m. It is released and slides down the inclined plane. What is its speed at the bottom of the inclined plane?

    asked by Hannah on March 2, 2017
  63. physics

    Initially 48g of ice at 0 degrees celsius is in an aluminium calorimeter can of mass 2.0 g also at 0 degrees celsius.Then 75g OF water at 80 degrees celsius is poured into the can.What is the final temperature.

    asked by musuma on April 12, 2012
  64. chemistry

    Several reactions are carried out using AgBr, a cream-colored silver salt for which the value of the solubility product constant, Ksp, is 5.0 x 10-13 at 298 K. a) Calculate the value of [Ag+] in 50.0 mL of a saturated solution of AgBr at 298 K. b) A 50.0

    asked by jack on March 14, 2015
  65. English for Fernanda

    In the sentences below, which of the bolded adverbs is used to describe an adjective? A. Gia ran VERY quickly to get to the bus on time. B. Troy was TOO cold to continue ice skating. C. Jack grumbled LOUDLY about his history grade. D. Nora looked SADLY

    asked by Writeacher on October 30, 2014
  66. Physics

    A 4-kg sled sliding freely on an icy surface experiences a 2 _ N frictional force exerted by the ice and an air-resistive force of 0.5 N. a. What is the net force acting on the sled? b. What is the acceleration of the sled?

    asked by Katherine on December 28, 2010
  67. physics

    Alice ((7.500x10^1) kg) and Bob ((8.5x10^1) kg) are standing at rest on friction free ice. Alice pushes Bob causing Bob to accelerate at (2.300x10^0) m/s^2. What is the magnitude of Alice’s acceleration?

    asked by sara on October 15, 2014
  68. psychology

    A typical act of servant leader should be to: a) work for salary no higher than that of group members. b) expect group members to act like personal servants c) k group members what they want to achieve d)volunteer to do custodial work for the department Is

    asked by vedrana on March 1, 2010
  69. Physics

    Hello, I really don't get something about work and I would like that someone help me, Please. .. Well I have an exercise about two objects that are connected by an ideal rope that pass through a pulley that has a moment of inertia, so my problem is: when I

    asked by Ross on December 24, 2016
  70. psychology

    A typical act of servant leader should be to: a) work for salary no higher than that of group members. b) expect group members to act like personal servants c) k group members what they want to achieve d)volunteer to do custodial work for the department Is

    asked by vedrana on March 1, 2010
  71. writeacher spanish

    Sra McGuin - had been helping me review my work she asked me what I was trying ot say in english _I had done the entire assignemtn but to help me she needed the english - I would never ask someone to do my work point of is my most memoable day on the

    asked by sam on December 6, 2008
  72. Algebra

    A phone company offers two monthly charge plans. In Plan A, the customer pays a monthly fee of $13 and then an additional 6 cents per minute of use. In Plan B, there is no monthly fee, but the customer pays 8 cents per minute of use. For what amounts of

    asked by Gilbert on September 25, 2015
  73. Math

    A local gym charge nonmembers $ 19 per hour to use the tennis courts. Members pay a yearly fee of $300 and $4 per hour for using the tennis courts. Write and solve an equation to find how many hours you must use the tennis courts to justify becoming a

    asked by Ricky on January 8, 2008
  74. math

    You have just graduated from college and landed your first big job. You have always dreamed of being a homeowner, and after carefully shopping for your dream home, you find one that you would like to purchase at a cost of $250,000. After researching banks

    asked by tammy l on March 13, 2011
  75. math

    You have just graduated from college and landed your first big job. You have always dreamed of being a homeowner, and after carefully shopping for your dream home, you find one that you would like to purchase at a cost of $250,000. After researching banks

    asked by Tonia on August 9, 2011
  76. Algebra

    You have just graduated from college and landed your first big job. You have always dreamed of being a homeowner, and after carefully shopping for your dream home, you find one that you would like to purchase at a cost of $250,000. After researching banks

    asked by Anonymous on March 21, 2011
  77. Literature

    What is the meaning of this quote:"The main reason people struggle financially is because they have spent years in school but learn nothing in money. The result is that people learn to work for money but never learn to have money work for them." I know

    asked by Jezraiyelle on October 6, 2014
  78. art

    Hey guys, i need some ideas for my art work. but firstly i need a phrase or message to work from. im thinking about technology right now so can you guys give me ideas on finishing the following sentence: technology is... if you have any other ideas on

    asked by anonymous on October 19, 2009
  79. math

    tom takes 3days to do a piece of work while jerry takes only one day for the same. together, they both can finish the job in 15 days. in how many days tom will finish the work? #please give it, the complete solution. please hurry

    asked by lucky on December 16, 2015
  80. Math

    If 360 workers called in sick and 240 went to work, how many workers work at the company all together? Solve using fractions and multiplication or division. Obviously the answer is 600 but how do I solve the problem using multiplication or division?

    asked by Anonymous on December 31, 2014
  81. constitution/essay

    Write your paper about a hypothetical proposal that is before the elected school board for the public schools in your city. The proposal stirs deep controversy in the community. Opponents claim that it would violate the Constitution’s prohibition against

    asked by Sarah on April 22, 2013
  82. educational technology

    3. adding transitions to slides in a presentation A. offers effects when moving from one slide to the next.***** B. adds animation to selected text and images. C. adds a new slide to a presentation in microsoft powerpoint. D. creates sound effects

    asked by lydia on March 13, 2015
  83. Physics

    A girl is skipping stones across a lake. One of the stones accidentally ricochets off a toy boat that is initially at rest in the water (see the drawing below). The 0.094-kg stone strikes the boat at a velocity of 14 m/s, 15° below due east, and ricochets

    asked by Elizabeth on October 23, 2012
  84. math

    The local reader’s club has a set of 36 hardback books and a set of 30 paperbacks. Each set can be divided equally among the club members. What is the greatest possible number of club members? A. 5 B. 6 C. 30 D. 180

    asked by please help on October 10, 2018
  85. Science

    A person performs a work task at a mechanical efficiency of 20 percent and at total energy output of 15kcal/min. How much energy(kcal/min) is lost as heat? and how much energy(kcal/min) is used to actually perform the work?

    asked by Sam on February 29, 2012
  86. Medical Physics

    A block is acted on by a force that varies as (2.8*10^4 N/m)x for 0

    asked by Megan on October 2, 2009
  87. Kinesology

    A person performs a work task at a mechanical efficiency of 20 percent and at total energy output of 15kcal/min. How much energy(kcal/min) is lost as heat? and how much energy(kcal/min) is used to actually perform the work?

    asked by Sam on February 29, 2012
  88. physics- response to bobpursley

    which is false? Consider the following processes: I. Energy flows as heat from a hot object to a colder object II. Work is done on a system and an equivalent amount of energy is rejected as heat by the system III. Energy is absorbed as heat by a system and

    asked by matt on June 25, 2009
  89. Chemistry-Repost

    Known: Cyanaocetic acid Ka=3.55*10^-3 ionization equation: HC3H2NO2 H^+ + C3H2NO2^- Unknown: pH of 0.4M of Cyanaocetic acid How can I find out the pH of 0.4M of Cyanaocetic acid ? Is there another way solving for it other than using ICE chart? Please help

    asked by anonymous on April 21, 2009
  90. chemistry

    Consider an insulated system containing 150 g of liquid water and 150 g of ice at equilibrium under atmospheric pressure. A total of 22g of steam at 120◦C is admitted to the system. What is the phase composition and temperature when equilibrium is

    asked by ace on November 14, 2012
  91. physics

    A faulty Celsius thermometer read 0.7degrees Celsius at melting point of pure ice and 99.5degrees Celsius at boiling point of water at normal pressure. What is the correct temperature when it reads 30 degrees Celsius

    asked by precious on August 5, 2017
  92. Science-Chemistry

    A student has blocks of four different materials of identical mass. The materials are ice, gold, aluminum, and Styrofoam. Which blocks would have the largest volume? Would it be gold? Also this other question: What is the total number of atoms in a single

    asked by Sara on April 28, 2010
  93. Physics

    Two horizontal forces F1 and F2 act on a 1.7 kg disk that slides over frictionless ice, on which an xy coordinate system is laid out. Force F1 is in the negative direction of the x axis and has a magnitude of 3.0 N. Force F2 has a magnitude of 9.0 N. What

    asked by Leo on March 7, 2012
  94. physics

    Please help! it has to do with momentum A 70 k/g woman and her 35 k/g son are standing at rest on an ice rink. They push against each other for .60 s, causing them to glide apart. The speed of the woman immediately after they separate is .55 m/s question

    asked by marissa! on January 13, 2012
  95. physics

    Two ice skaters approach each other at right angles. Skater A has a mass of 30.7 kg and travels in the +x direction at 2.64 m/s. Skater B has a mass of 109 kg and is moving in the +y direction at 1.29 m/s. They collide and cling together. Find the final

    asked by luma on December 20, 2015
  96. Physics

    Pam, wearing a rocket pack, stands on frictionless ice. She has a mass of 44 kg. The rocket supplies a constant force for 22.0 m, and Pam acquires a speed of 62.5 m/s. Assume that air resistance is negligible. (a) What is the magnitude of the force?

    asked by Dar on February 19, 2010
  97. Chem 111

    if the equilibrium concentration of nitrogen at 18degrees C is 0.256M and equil. concen. of hydrogen is 0.0184M what is the equil. concen. of ammonia? N2 + 3 H2 2 NH3; so K= [NH3]^2 / [N2][H2]^3 Is this correct? Then ICE table? Giving me.... K= (2x)^2 /

    asked by Anonymous on September 8, 2011
  98. Chemistry

    How long would it take a 20Kw heater to warm up 1000 litres of water from 15 degrees to 55 degrees in hours? specific heat of water = 4.18kJ. also How much heat would a block of ice melting at 200Kg per hour absorb? thanks if anyone can help!

    asked by Dave on October 21, 2012
  99. science

    How did the sun wind up in the middle of the solar system? Did the materials, gas and dust that eventually formed the planets come from the sun? Since our solar system is already formed, we must try to reconstruct its history by studying current star

    asked by HERSHEYS on April 19, 2007
  100. physics

    An emf is induced in a conducting loop of wire 1.24 m long as its shape is changed from square to circular. Calculate the average magnitude of the induced emf if the change in shape occurs in 4.21 s, and the local 0.123 T magnetic field is perpendicular to

    asked by VJC on October 18, 2010