1. physics

    The engineer of a Russian nuclear submarine lurking under the Arctic Sea reports an outside pressure of 35 ATM. How deep is the submarine? Neglect ice thickness.
  2. Physics

    A figure skater glides along the ice at 2.2 m/s , she then accelerates at 1.3 m/s^2 for 3.0 seconds. At the end of that time she is moving at 6.1 m/s. What would be the angle between the acceleration vector and the initial velocity vector? .. please help
  3. Physics

    The speed of a hockey puck (mass=100.0 g) decreases from 45.00 m/s to 42.68 m/s in coasting 16.00 m across the ice. a) How much thermal energy was produced? b) What frictional force was acting on the puck?
  4. PHYSICS

    2 people,1 with 3 times the mass of the other, attempt a tug-of-war on frictionless ice. Show that the heavier person will gain a speed 1/3 that of the lighter person.
  5. physics

    The ocean level rises when global temperature rises, due to ____________________. A) Both of these.B) Neither of these.C) melting of ice caps at the poles.D) thermal expansion of water
  6. physics

    What is the resulting temperature when a 150g cube of ice at zero degrees celsius is added to 200g of water in a 100g aluminium cup at 30degrees celsius.
  7. Socials, 3 definitions

    land being covered with thick moving ice is called what? northern or of the arctic/6 letters? a level bog or swamp found in canada/6 letters?
  8. English

    1.) Which of the following excerpts from Orpheus and Eurydice is an example of hyperbole? a.) ...even the ice-hard heart of Hades melted b.) ...the music he played tore at the hearts of everyone who followed. c.) ...Persephone, her face veiled by the
  9. science

    The movement of the earth around the sun____. a) is one of the reasons for seasons b) results in the formation of day and night c) makes the sun rise in the east d) causes earthquakes e) cause the ice ages to reoccur Just need to know if my answer or right
  10. Chemistry

    What colligative properties are displayed by these situations. 1. Antifreeze is added to car cooling system preventing freezing when air temp is below 0 degrees C. 2. Ice melts on sidewalk after salt has been spread
  11. physics

    which one best describes appr. uniform velocity? 1. a hockey puck sldng across the ice 2. a baseball pitched toward a batter 3. the tip of the minute hand on a clock 4. an olympic sprinter running the 100m
  12. Science/Geology

    I feel like an idiot for even asking, however, here goes... I need to do a "graphical representation of mechanical and chemical weathering, water, wind, and ice erosion." I have read through my text numerous times and still am not sure how to do this. Does
  13. physics

    You are working in an ice skating rink and have been asked to hang a new banner on the wall. Your friend is helping you so that the ladder does not collapse by exerting a force FAL at an angle relative to the horizontal. how do you set this up?
  14. geography

    sramcgin, thanks for your help. you are a very funny person though. i couldn't find the most eastern and western physiographic region in canada? in the last ice age ,how many glacial advances? the process that formed the rocky mountains and the
  15. Math

    Given the situation described, identify the type of sampling involved. Students at Local U are classified according to the progress toward their degree program as freshmen, sophomores, juniors, seniors and nonmatriculating, then random samples from each
  16. math

    local store going out of business. Owner decreases all prices by 5% every day until all items are sold. Customer wants dress priced at $2500. How long does she have to wait for repeated discounts to reduce price of dress to less than $700?
  17. Personal Finance

    If the economy is not doing well and jobs are hard to find, what would you suggest for your friend to do if they are graduating high school in a month? A) sit at home until the economy improves B) save money by going to a local community college C) look
  18. Math

    Given the situation described, identify the type of sampling involved. Students at Local U are classified according to the progress toward their degree program as freshmen, sophomores, juniors, seniors and nonmatriculating, then random samples from each
  19. PLEASE HELP (Civics)

    Special purpose districts are agencies that accept tasks from the national government neighborhood groups without government local governments designed to meet a specific need *** regions created only for running state elections
  20. Civics

    Special purpose districts are 1. agencies that accept tasks from the national government. 2. neighborhood groups without government 3. local governments designed to meet a specific need 4. regions created only for running state elections
  21. Art

    What type of community art would likely hang on the walls of a Greek sanctuary? A plaque to honor the gods. (MY ANSWER) A carving of everyday activities. A painting of a common citizen. A plaque depicting local plants.
  22. statistics

    11. A local health care company wants to estimate the mean weekly elder day care cost. A sample of 10 facilities shows a mean of $250 per week with a standard deviation of $25. What is the 90 percent confidence interval for the population mean?
  23. Environmental Science

    Reclamation is the process of A) removing coal from a subsurface seam. B) extracting ore minerals from gangue minerals. C) returning land to its original or better condition after mining. D) protecting the habitats of local wildlife. I think the answer is
  24. Algebra

    A fitness club offers two membership options. The first option has an initial fee of $50 and then charges $30 per month. The second option has no initial fee but charges $40 per month. After how many months, x, will the first option be a better value than
  25. physics

    During burnouts at the local drag strip, a dragster’s 45.0kg tire rotates at a speed of 35.0m/s. If the tire has a radius of 0.500m what is the centripetal force acting on the center of the tire rim during this burnout?
  26. Math

    Please show me how to set this up: A local citizen wants to fence a rectangular community garden. The length of the garden should be at least 110ft., and the distance around should be no more than 380ft. Write a system of inequalities that models the
  27. social studies

    The national government of Uganda has supreme political authority in the country, with the local governments having limited power. This type of system is known as a A) republic. B) dictatorship. C) unitary government. D) totalitarian government.
  28. physics- TEST TMRW PLS HELP!

    Why is the following situation impossible? A librarian lifts a book from the ground to a high shelf, doing 20.0 J of work in the lifting process. As he turns his back, the book falls off the shelf back to the ground. The gravitational force from the Earth
  29. physics- please explain

    Why is the following situation impossible? A librarian lifts a book from the ground to a high shelf, doing 20.0 J of work in the lifting process. As he turns his back, the book falls off the shelf back to the ground. The gravitational force from the Earth
  30. Math

    I help solving these out can someone work through them with me???? 19. WorkPad Note: In questions 19-21, remember to show all of the steps that you use to solve the problem. Be sure to use the text box where the question mark (?) first appears to show your
  31. Math

    An electrician charges $120 after 2 hours of work and $190after 4 hours of work .write a linear model that represents the total cost as a function of the number of hours worked
  32. Math

    Tickets to a local movie were sold at $7.00 for adults and $5.50 for students.there were 220 tickets sold for a total of $1,390.00.
  33. math

    laura works at a local supermarket. she can stack 7 shelves in 1\3 of an hour. At this rate, how many shelves can she stack in 2 hours
  34. math

    1-show that 1-x/2 is the tangent line approximation to 1/ sqrt of 1+x near x=0 2-what is the local linearization of e^x^2 near x=1 3-find the tnagent line approximation of 1/x near x=1
  35. Calculus

    A function f(x) is continuous for all x and has a local minimum at (1,8). Which must be true? A. f'(1)=0 B. f' exists at x=1 C. The graph is concave up at x=1 D. f'(x) is less than 0 if x is less than 1, f'(x) is greater than 0 if x is greater than 1 E.
  36. Calculus check

    A function f(x) is continuous for all x and has a local minimum at (1,8). Which must be true? A. f'(1)=0 B. f' exists at x=1 C. The graph is concave up at x=1 D. f'(x) is less than 0 if x is less than 1, f'(x) is greater than 0 if x is greater than 1 E.
  37. law/421

    When the local customs and laws conflict with the customs and laws of an organization operating abroad, which should prevail? Explain why.
  38. RATIOS AND RATES

    At a local grocery store, Sabrina spends $3.96 for 2 pounds of blueberries. How much can she expect to pay for 6 pounds of blueberries?
  39. algebra

    What type of sampling is this: Group the students in a local college by year and then randomly select 15 students from each group.
  40. Western Experience : Since the sixteenth century

    How did imperialism impact non-western economies? How did Europeans achieve these transformations of local economies? What were the effects of those transformations?
  41. CALC (TANGENT LINE)

    1-show that 1-x/2 is the tangent line approximation to 1/ sqrt of 1+x near x=0 2-what is the local linearization of e^x^2 near x=1 3-find the tnagent line approximation of 1/x near x=1
  42. Career guidance

    In which of the following would a person who work as a business administrator be interested select two that apply. a. Convincing someone to purchase a project b. Planning employee work schedules**** c. Typing memos and letters d. Writing facts, procedures,
  43. english II

    Errors in the use of punctuation marks - Comma the answer is a. A.What will you be when you grow up-an artist or a mathematician? B.To make a delicious hot chocolate drink, melt a square of unsweetened chocolate, stir in some sugar and milk, add a dollop
  44. english II

    Errors in the use of punctuation marks - Comma the answer is d. A.What will you be when you grow up-an artist or a mathematician? B.To make a delicious hot chocolate drink, melt a square of unsweetened chocolate, stir in some sugar and milk, add a dollop
  45. math 2

    A video arcade offers 6 free games to first time costomers. Each game costs $.75 and after every four games, you get a free game. How many games could you play for $3.00 the first time you are a costomer? 6 free to begin 4 games=$3.00 +1 free 11 games
  46. Physics

    A trunk of mass m = 1.100 kg is pushed a distance d = 32.0 cm up an incline with an angle of inclination theta = 26.0 ° by a constant horizontal force P = 150. N. The coefficient of kinetic friction between the trunk and the incline is 0.330. a) Calculate
  47. math linear equations

    suppose you earn 5.50/h at a bakery. From your first paycheck you discover that $1.15/h is withheld for taxes and benefits. you work x hours in a five day week and you spend $3.75 each day on lunch. Write an equationfor your earnings for a 5 day week after
  48. math

    at a certain factory each worker either drives to work or take the bus. the ratio of worker who take the bus to those who drive to work is 2:5. if 120 worker drive to work how many workers are there at the factory?
  49. help me unscramble this word

    ok can you help me unscramble this word "ANLDEGN".When it is unscrambled it its either the name of an ocean, country, state, city, or animal. Try these: http://www.ssynth.co.uk/~gay/anagram.html http://www.unscramble.net =) Thank you for using the Jiskha
  50. language arts

    Which of the following is part of the novels rising action? A. Johnny's growing role delivering messages and acting as a spy for the Whigs*****? (I've heard many people say it was this, i thought it was either c or d) B. Dr. Warrens imminent surgery on
  51. pschology

    How can you summarize this paragraph?Some reasons teachers leave the teaching career are for things that are out of their control, such as low pay and the particular administration in charge at their school. Other reasons teachers leave their jobs include
  52. Math

    Okay i stuck on a problem can anyone help? There are 14 people total.7 are girls a day.Everyone has to work for 7 days also everyone has to have 2 days off.So how many days does a girl work a week?
  53. Algebra 2

    Q: What is the value of b in the equation 4^2b-3 = 8^1-b? My Work/Answer: Set each sides base to 2 2^2(2b-3) = 2^3(1-b) cancelled bases out solved for b my answer - 9/7 Is my work and answer correct Thank You
  54. Math

    A farmer has $2400 to spend to fence two rectangular pastures.The local contractor will build the fence at a cost of $6.25/m. What is the largest area that the farmer can have fenced for that price?
  55. math

    a local gas station uses the formula c= 0.635L+ 6.25 to charge customers who want to buy gasoline and a car wash what is the total cost if you buy 20L of gasoline? please help!
  56. algebra

    marissa earns $3.75 per hour at a local fast food restaurant. write an expression for the amount she earns and determine how much she is going to earn in 7 hours. A: 3.75x;$26.25 B: 7x;$26.25 C: 3.75x + 7x;$10.75 D: 7x;$3.75
  57. math - really easy

    in the local coed softball league, the male to female ratio is 6:6. If there are 160 players in the league, how many are female? I know the answer is 80. but how the heck do I set up the problem correctly?
  58. Real Estate Finance

    A home is valued at $175,000. Property in the area is assessed at 35% of its value, and the local tax rate is $3.85 per $100. What is the amount of annual tax paid on the home?
  59. math

    marissa earns $3.75 per hour at a local fast food restaurant. write an expression for the amount she earns and determine how much she is going to earn in 7 hours. A: 3.75x;$26.25 B: 7x;$26.25 C: 3.75x + 7x;$10.75 D: 7x;$3.75
  60. algebra

    The number of customers visiting a local business is 48,961 and has been continuously declining at a rate of 2.5% each year. What is the approximate number of customers in 13 years. My answer is 35,230
  61. math

    a mobile phone company charge for a local call such that $0.5 in the first minute and $0.3 every minute there after. Find a formula for the total amount charged for call lasting in x minutes
  62. math

    f(x)=-x^3+3x^2+9x-5 asked to find the stationary points this was my working and i don't know if it is correct f dash of x = -3x^2+3(2x)+9 -3x^2+6x+9 at local max and min f(x) should =0 -3x^2+6x+9=0 3x^2-6x+9 x^2-2x+3=0 stationary points would be at (x+3)
  63. math

    Helga's summer job put her in charge of the local soccer and basketball programs. To get ready, she ordered 50 balls, making sure there were 10 more soccer balls than basketballs.
  64. math

    a local gas station uses the formula c= 0.635L+ 6.25 to charge customers who want to buy gasoline and a car wash what is the total cost if you buy 20L of gasoline? please help!
  65. Eng

    Which of the following sentences is correctly punctuated? A. the company held it's annual party at the convention center. B. Mr. Jones visited the YMCA before becoming a member. C. Mary remembered to buy milk. didn't she? D. The local police asked the
  66. Business

    Your beachside inn will be ready to open next spring. To get in on the summer tourist trade, it will be necessary to… A- offer bargain rates at first B- give it an unforgettable name C- advertise heavily and local newspapers D- establish a strong web
  67. techn. in crj

    Discuss corrections system uses case management software to more efficiently and safely handle prisoner rehabilitation and transfers.Explain what might happen if two prisoners from rival gangs were made cell mates at the local prison because of a file mix
  68. Physics

    An airline pilot pulls her 12.0 kg rollaboard suitcase along the ground with a force of 25.0 N for 10.0 meters. The handle she pulls on makes an angle of 42.5 degrees with the horizontal. How much work does she do over the ten-meter distance? Tried doing:
  69. physics

    A truck in driving up the interstate with a constant velocity. Is work being done by a net external force acting on the truck? Justify answer. Why doesn't the work done by the engine pushing it forward make its kenetic energy increase?
  70. Calculus

    Determine if the Mean Value Theorem for Integrals applies to the function f(x) = x^3 − 16x on the interval [−1, 1]. If so, find the x-coordinates of the point(s) guaranteed to exist by the theorem. f(a)=15 f(b)=-15 f'(x)=3x^2-16 f'(c)=-15 I am now lost
  71. Physics

    Tarzan, who weighs 917 N, swings from a vine through the jungle. How much work is done by the tension in the vine as he drops through a vertical distance of 3.85 m? Simply calculating; W=(917N)*(3.85m)= 3530.45 J Isn't working, I'm not sure how to apply
  72. art 101

    Contrast The Elevation of the Cross by Rubens with Rembrandt’s Return of the Prodigal Son. Explain how each work reflects the artist and his temperament. How does each work mirror sociopolitical environment of each artist? Use one example from
  73. Algebra

    Find the area of the irregular figure (use 3.14 for pi). SHow your work. Round to the nearest tenth. Triangle with a semi-circle on it. The triangles height is 4.8ft and the circle's diameter is 3.6ft. Every time I do my work I keep getting 12.3 and I have
  74. 5th Grade Math

    Once a month a fast food chain offers a special when a coach brings in a team. Buy 5 hamburgers and get one free. This month, a team goes in after their game. Each person had one hamburger. Each of the players had a soda @ $.50 each and shared an order of
  75. Math

    Once a month a fast food chain offers a special when a coach brings in a team. Buy 5 hamburgers and get one free. This month, a team goes in after their game. Each person had one hamburger. Each of the players had a soda @ $.50 each and shared an order of
  76. alGEBRA 1

    how many minutes are there in 10 days? show work i know the answer but i don't get how to show work?
  77. 4th grade math

    Analee earjs $45 for every 5 hours of work. how much money can she earn for H hours of work
  78. math

    how can i show my work by long division by dividing8 from 100 show work.
  79. math

    if i have 12 markers,but one sixth of them work.wich one is equal to one sixth. A.10/12 B.8/12 c.4/12 d.2/12 Show work
  80. Math

    Jared can work 54 math problems in 1 hour. How many problems can he work in 10minutes?
  81. tips.

    Please show your work. Tutors will not do your homework for you. Please show your work for any question that you are posting.
  82. English expression

    1. Make groups of two. 2. Work in pairs. 3. Work in twos. 4. Make teams of two. ---------------- Are all the same? Can we use all?
  83. MATH

    Blake earned $199.20 for 24 hours of work. How much would he be paid for 15 hours of work?
  84. Science-y Math-y Stuff

    A machine with 80% efficiency does 4,000 J of work. Using the machine how much work did you do? NEED HELP! PLZ REPLY SOON
  85. 6th grade algebra

    a) Kendric makes 4 out of every 5 baskets he throws. What is the probability he will make his next shot as a percentage? MULTIPLE CHOICE b) If Marcia walks 4 1/4 miles before work and 5 6/8 miles after work. How many miles did she walk for the day? A 9
  86. physics

    A 50 kg boy picks up a 11 kg stereo and raises it 0.75 m from the floor to a tabletop. How much work did he do on the stereo? How much work did he do to raise his own center of mass 0.40 m in the process? I'm assuming you use W=mgy equation but do you
  87. physics/calc

    A worker on scaffolding 75 ft above the ground needs to lift a 500 lb bucket of cement from the ground to point 30 ft above the ground by pulling on a opre weighing .5 lb/ft. how much work is required? I know to use the Work integral, but im not sure wat
  88. Physics

    I was wondering if my answers are correct. 1. A 50kg person is taking a ride on an elevator travelling up at a steady speed of 2.5m/s. Find the time fo the elevator trip if the elevator does 4900 J of work on the person. My answer: First I used the formula
  89. time management

    Especially in the aspects of time management and effectiveness of getting work done,how much truth is the saying,”Early to bed and early to rise makes one healthy,wealthy and wise”? For the same amount of time spent, is work started early in the
  90. physics

    A 6.30kg block is pushed 9.50m up a smooth 35.0∘ inclined plane by a horizontal force of 77.0N . If the initial speed of the block is 3.15m/s up the plane. What is the initial kinetic energy of the block, the work done by the 77.0N force, the work done
  91. Maths

    A grocer sells apples for $1.35 each, pears for $1.45 each and oranges for $1.60 each. She also offers a discount of 70c for anyone who buys two pieces of fruit, and a discount of $1.60 for anyone who buys three pieces of fruit. One day she sells 50 pieces
  92. Math

    A grocer sells apples for $1.35 each, pears for $1.45 each and oranges for $1.60 each. She also offers a discount of 70c for anyone who buys two pieces of fruit, and a discount of $1.60 for anyone who buys three pieces of fruit. One day she sells 50 pieces
  93. Math

    A grocer sells apples for $1.35 each, pears for $1.45 each, and oranges for $1.60 each. She also offers a discount of 70c for anyone who buys two pieces of fruit, and a discount of $1.60 for anyone who buys three pieces of fruit. One day she sells 50
  94. Physics

    A 300 kg piano slides 4.4 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 magnitude of the force exerted by the man.(b)
  95. Physics

    A 300 kg piano slides 4.4 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 magnitude of the force exerted by the man.
  96. Language Arts

    How does Rab’s reaction to Johnny’s hand compare to that of other people? A. Like others, Rab is horrified by Johnny’s hand. B. While others react with disgust or pity, Rab ignores the injury untilJohnny mentions his bad hand. C. Rab expresses great
  97. Physics

    A worker applies a constant force of magnitude F = 339 N on a crate in a direction è = 26.1o above the horizontal as he pulls it across a level floor through a distance of s = 7.20 m. The mass of the crate is m = 53 kg and the coefficient of kinetic
  98. history

    Which offers one reason for how industrialization led to imperialism? a British factories eliminated the need for inexpensive human labor. b British factories eliminated the need for overseas agricultural development. c British factories required the raw
  99. history

    which offers one reaon for how industrialization led to imperialism? a. british factories eliminated the need for inexpensive human labor b. british factories required the raw materials that could be found overseas. c. british factories eliminated the need
  100. Algebra

    Problem solving (point of intersection) You are considering changing your cell phone plan . Company A offered a flat fee of $40 plus 10cents for each additional min of use. Company B offers a monthly flat fee of $20 plus 15 cents for each additional min of