1. physics

    Marks: 5 A hill that has a 15 % grade is one that rises 15.0 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such a hill inclined above the horizontal?
  2. Northwest H.S

    Physics: A car is parked on an icy hill inclined at 10°, when it begins to slide. What is the car's speed at the bottom of the 155-m hill?:
  3. physics

    At the base of a frictionless icy hill that rises at 23.0m above the horizontal, a toboggan has a speed of 12.0m/s toward the hill. How high vertically above the base will it go before stopping?
  4. Physics

    A hill is 290 m long and makes an angle of 10 degrees with the horizontal. As a 68 kg jogger runs up the hill, how much work does gravity do on the jogger?
  5. physics-please answer

    A coconut thrown horizontally at 20 m/s from the top of a hill 63 m high. How far from the base of the hill does the coconut hit the ground? Select one: a. 42 m b. 13 m c. 66 m d. 72 m
  6. Science

    A 35 kg child starting from rest slides down a hill with a vertical height of 20m. What is the child's speed at the bottom of the hill? How do you solve this???
  7. Physics

    A 55 kg skier rests on a hill that has an angle of 25° to the horizontal. What is the magnitude of the normal force the hill exerts on the skier?
  8. Physics

    A 2.0X10^4 N car is stopped on a 30 degree hill. If friction is negligible, what is the force of the car pushing into the hill?
  9. 8th grade science

    If you see that a hot-air balloon is rising above the top of a hill, what is the top of the hill called?
  10. physic

    A coconut thrown horizontally at 20 m/s from the top of a hill 63 m high. How far from the base of the hill does the coconut hit the ground?
  11. Physics

    A 250.0 kg motorcycle can roll 45.9 m up a long hill before coming to a stop if the motorcycle approaches the base of the hill 30.0 m/s.
  12. Physics question

    A student librarian picks up a 2.2 kg book from the floor to a height of 1.15 m. He carries the book 8.4 m to the stacks and places the book on a shelf that is 0.35 m above the floor. How much work does he do on the book?
  13. Physics

    A wheel with a weight of 395N comes off a moving truck and rolls without slipping along a highway. At the bottom of a hill it is rotating at an angular velocity of 23.0rad/s . The radius of the wheel is 0.607m and its moment of inertia about its rotation
  14. physics

    If an 75-kg baseball pitcher wearing frictionless roller skates picks up a 0.145-kg baseball and pitches it toward the south at 40 m/s, how fast will he begin moving toward the north?
  15. iinterpersonal comminication skills

    two components of oral communication include? A.proper volume and pitch B.pitch and eye contact C.enunciation and speaking rate D.eye contact and pronunciation my answer is c
  16. College Physics 1401

    The Space Shuttle travels at a speed of about 7.60 103 m/s. The blink of an astronaut's eye lasts about 100 ms. How many football fields (length = 91.4 m) does the Shuttle cover in the blink of an eye?
  17. english

    I am just completely stuck and on the verge of giving up. My last day of school is today and if I don't hand in this essay I will fail no matter what. The essay is on the type of essay, voice and tone in the chapter toolbox of Stephen King's book, On
  18. science

    Please Help me!!!!!!!! i dnt have my science book but there is a question that im stuk on pleaz help!!! Explain why we can only see a full moon only at nite.
  19. Lang Arts

    Hi. I need help with one question, and then I need someone to check my others. The first one is the one I need help with. Thank You. ________________________________________ 1. Which of the key reading skills for reading informational articles involves
  20. baseball

    in baseball they have nine times entrances bases?
  21. reading strategies

    1.Which of the following activities would best be suited for scaning? A. Finding answers to the chapter review in history. B. Looking at the article how to invest your money. C.reading the short story the hunters daughter. D. Both A & C. I chose D. 2.All
  22. Physics

    A student librarian picks up a 2.2 kg book from the floor to a height of 1.05 m. He carries the book 8.3 m to the stacks and places the book on a shelf that is 0.35 m above the floor. How much work does he do on the book?
  23. physics

    A student librarian picks up a 2.2 kg book from the floor to a height of 1.05 m. He carries the book 8.3 m to the stacks and places the book on a shelf that is 0.35 m above the floor. How much work does he do on the book?
  24. Physics

    1. A student librarian picks up a 2.2 kg book from the floor to a height of 1.0 m. He carries the book 5.3 m to the shelves and places the book on a shelf that is 0.65 m above the floor. How much work does he do on the book?
  25. physics

    A student librarian picks up a 2.2 kg book from the floor to a height of 1.10 m. He carries the book 7.8 m to the stacks and places the book on a shelf that is 0.35 m above the floor. How much work does he do on the book?
  26. physics

    A student librarian picks up a 2.2 kg book from the floor to a height of 1.15 m. He carries the book 8.0 m to the stacks and places the book on a shelf that is 0.35 m above the floor. How much work does he do on the book? how do i do this??
  27. physics

    A student librarian picks up a 2.2 kg book from the floor to a height of 1.15 m. He carries the book 8.0 m to the stacks and places the book on a shelf that is 0.35 m above the floor. How much work does he do on the book?
  28. Physics

    A student librarian picks up a 2.2 kg book from the floor to a height of 1.10 m. He carries the book 7.9 m to the stacks and places the book on a shelf that is 0.35 m above the floor. How much work does he do on the book?
  29. Astronomy

    Imagine that a rival astronomer proposes that your mysterious object is actually the mouth of a wormhole to another dimension. The rival astronomer calculates that the wormhole mouth would need to be 10^13 m in diameter and would last for around a thousand
  30. Language Arts

    I need a book report book that is at least high school level but is contemporary fiction and is interesting too. Do you have any ideas? I've given my teacher 3 or 4 choices but none of them are high school credit. Choices I've Already Tried: Leaving Jetty
  31. Physics

    An ocean liner is traveling at 5m/s. A passenger on deck walks towards the rear of the ship at a rate of 4m/s. After walking 30 meters, he turns right and walks at a rate of 4m/s to the rail, which is 12 meters from his turning point. What is his velocity
  32. physics

    An ocean liner is traveling at 5m/s. A passenger on deck walks towards the rear of the ship at a rate of 4m/s. After walking 30 meters, he turns right and walks at a rate of 4m/s to the rail, which is 12 meters from his turning point. What is his velocity
  33. physic

    An air column in a glass tube is open at one end and closed at the other by a movable piston. The air in the tube is warmed above room temperature, and a 350 Hz tuning fork is held at the open end. Resonance is heard when the piston is at a distance d1 =
  34. poetry

    I need to recite this poem in front of the class and i have to add at least three more lines to it. does anyone have any suggestions? Math is the thick red book, Sitting there, waiting for you to open it, Just waiting for your sigh. Math is working two
  35. physics!!!

    a sled and rider with a combined weight of 60kg are at rest on top of a hill 12m high.what is the total energy at the top of the hill?
  36. physics

    A child and sled with a combined mass of 48.4 kg slide down a frictionless hill that is 7.15 m high. If the sled starts from rest, what is its speed at the bottom of the hill?
  37. Physics

    A pipe of constant diameter 13.4 cm carries water up a hill 30.34 m high. How much pressure is required at the bottom of the hill if the water is to reach the top?
  38. physics

    A child and sled with a combined mass of 47.8 kg slide down a frictionless hill that is 7.18 m high. If the sled starts from rest, what is its speed at the bottom of the hill?
  39. physics

    A child and sled with a combined mass of 40.0 kg slide down a frictionless hill. If the sled starts from rest and has a speed of 9.0 m/s at the bottom, what is the height of the hill? m
  40. physics

    A child and sled with a combined mass of 40.0 kg slide down a frictionless hill. If the sled starts from rest and has a speed of 9.0 m/s at the bottom, what is the height of the hill? m
  41. Physics, math, algebra

    How long will it take a sled to reach the bottom of a hill, if it accelerates at 5.60m/s^2 and has a final velocity at the bottom of the hill of 42.3km/h?
  42. math

    the top of a hill is 40m tall. the horizontal distance from the runaway is 325 m. if the pilot clear the top of the hill by 45 m, what is the angle of takeoff?
  43. physics

    A child and sled with a combined mass of 53.0 kg slide down a frictionless hill that is 7.63 m high. If the sled starts from rest, what is its speed at the bottom of the hill?
  44. physics

    a 3000 pound car is parked on a hill at an angle of elevation of 16 degrees. how much force must the brakes exert to keep the car from rolling down the hill?
  45. physics

    A child and sled with a combined mass of 45.0 kg slide down a frictionless hill that is 8.79 m high. If the sled starts from rest, what is its speed at the bottom of the hill? m/s
  46. physics

    A child and sled with a combined mass of 47.4 kg slide down a frictionless hill that is 8.61 m high. If the sled starts from rest, what is its speed at the bottom of the hill?
  47. Biology

    When elongated, tube-shaped cells from the lining of the intestine are treated with a certain chemical, the cells sag and become round blobs. The internal structures disrupted by this chemical are probably _____. A. cell junctions B. microtubules C. rough
  48. English

    I still have a few doubts about some more sentences. 1) wide-apart eyes : is "distant" eyes possible? 2) pale-skinned: is fair-skinned possible? 3) happily: is "contently" possible? I watch TV (is the TV also possible?) a quite large mouth (or quite a
  49. physics

    A skier is accelerating down a 30.0 degrees hill at 1.80m/s^2. How long will it take her to reach the bottom of the hill, assuming she starts from rest and accelerates uniformly, if the elevation change is 375 m? Apparently the answer isn't 20.4 s... Can
  50. math

    The community is having a book sale to raise money for a new computer. The library sells each book for $4.00. complete the table, where b represents the number of books sold. How much money will the library earn if b=44? b 4b 40 160 44 ? 50 200 I don't
  51. Reading-yes,this is the article

    "Is Facebook making us lonely" Just to check my understanding on this article,I decided to write a summary.. Please check by reading this article.. Basically the author is trying to say that Facebook connects people with each other but it does not bond
  52. English

    Which of the following is a strong introductory sentence? A. Should each of the United States allow citizens to openly carry a weapon? B. I don’t agree with any open-carry laws. C. This essay will explain the open-carry laws in the United States. D. To
  53. English

    Which of the following is a strong introductory sentence? A. Should each of the United States allow citizens to openly carry a weapon? B. I don’t agree with any open-carry laws. C. This essay will explain the open-carry laws in the United States. D. To
  54. English

    Which of the following is a strong introductory sentence? A. Should each of the United States allow citizens to openly carry a weapon? B. I don’t agree with any open-carry laws. C. This essay will explain the open-carry laws in the United States. D. To
  55. trigonometry

    The minute hand of a clock is 8 inches long. How far does the tip of the minute hand move in 30 minutes? How far does it move in 20 minutes? For 30 min. I got 8pie inches. For 20 mins., I got (16pie/3)inches. but i don't know if these answers are correct.
  56. Math/Science

    An ocean liner is traveling at 5m/s. A passenger on deck walks towards the rear of the ship at a rate of 4m/s. After walking 30 meters, he turns right and walks at a rate of 4m/s to the rail, which is 12 meters from his turning point. What is his velocity
  57. English

    1. Open the window, will you? 2. Don't close the door, will you? 3. Open the window, won't you? 4. Have a cup of coffee, won't you? 5. Have a cup of coffee, will you? -------------------------------------- Ae they all grammatical? Which ones are not okay?
  58. Science

    You have the most potential energy at the top of a hill. Where would you have the most kinetic energy? - I was thinking right before you stop rolling down the hill
  59. Physics

    A 1450 kg car goes over a vertical hill with a radius of 64.7 m. What is the maximum velocity that will keep the car on the road as it goes over the hill?
  60. english help asap

    hi I have to do an essay analyzing themes, symbols, and the authors' writing style of two books: A Farewell to Arms and The English Patient. I need help writing the introduction. How do i start my intro paragraph explaining about the two book without
  61. English/Reading

    I need 3 examples of metaphors and personification in the Book I am Regina by Sally M. Keehn Please tell us what you've found, and we'll be glad to critique your answer. I cannot, since I haven't ever read that book, but there are excellent explanations of
  62. Math

    on the weekend, the county pool has one open-lap lane session for 45 minutes each day of the weekend. weekday open-lap sessions are for 30 minutes. the number of weekday open-lap sessions vary. last week there were a total of 6 hours of open-lap sessions.
  63. interpersonal communication skills

    two components of oral communication include? A.proper volume and facial expressions B.pitch and eye contact C.enunciation and speaking rate D.eye contact and pronunciation my answer is c
  64. interpersonal and communication skills

    two components of oral communication include? A.enunciation and speaking rate B.eye contact and pronunciation C.proper volume and facial expressions D.pitch and eye contact my answer is a
  65. english!

    I finished reading The Stranger by Albert Camus and one of my projects is to make a CD with music based on events from the book. I have a few but not enough yet. Any ideas of songs that would fit well?
  66. English

    I need some recommendations for a challenging book for an voracious reader who can read advanced books and understand them. Somewhere of a reading level of 8th,9th or 10th.
  67. English Question [Dante's Inferno]

    I've just got a couple questions on the book, what are the two parts of the'' Divine Comedy?'' I've got Cantos, but I still need the other one and I can't fidn it in the paper I'm reading off of. Thanks -Allyson
  68. English

    I am currently reading Free Food For Millionaires by Min Jin Lee. I feel like its missing something. Should I put quotation marks around the title of the book?
  69. English - Reading

    In chapter 3 of the book "A Long Way Gone", is Ishmael Beah actually dreaming as he goes to bed reminicing about the memories of civil war in Sierra Leone?
  70. English

    I am reading the book Tortilla Flat by John Steinbeck and I am supposed to write the place where it was published along with the copyright date, but I can't find it. Any ideas what they are?
  71. physics

    A dime is 1.8 cm in diameter. Earth's moon is 3.844´1010 cm from Earth and has a diameter of 3.76´108 cm. At what distance from your eye would you have to hold a dime so that it has the same angular diameter as the full moon?
  72. 8th grade

    how does placement of spacers between the eye bolt and magnets affect the strenght of the magnets pull on the eye bolt?
  73. physical science

    a sled and rider with a combined weight 60kg are at rest on the top of a hill 12m high. what is their total energy at the top of the hill?
  74. Physics

    a car goes over a circular hill of 50m radius at a constant speed of 20m/sec . What is the force of the car on the 600N driver at the top of the hill.?
  75. physics

    a ball is thrown horizontally from a hill 29.0m high at a velocity of 4.00m/s. find the distance between the base of the hill and the pointwhere the ball hits the ground.
  76. physics

    5.A car approaches the top of a hill that is shaped like a vertical circle with a radius of 55.5 m. What is the fastest speed that the car can go over the hill without losing contact with the ground?
  77. Fluids

    A pipe of constant diameter d = 10.5 cm carries water up a hill h = 38.1 m high. How much pressure is required at the bottom of the hill if the water is to reach the top? Any help would be great
  78. Physics

    a car goes over a circular hill of 50m radius at a constant speed of 20m/sec . What is the force of the car on the 600N driver at the top of the hill.?
  79. physics

    A car approaches the top of a hill that is shaped like a vertical circle with a radius of 58.2 m. What is the fastest speed that the car can go over the hill without losing contact with the ground?
  80. Physics

    . (a) How high a hill can a car coast up (engine disengaged) if work done by friction is negligible and its initial speed is 110 km/h? (b) If, in actuality, a 750-kg car with an initial speed of 110 km/h is observed to coast up a hill to a height 22.0 m
  81. Physics

    (a) How high a hill can a car coast up (engine disengaged) if work done by friction is negligible and its initial speed is 110 km/h? (b) If, in actuality, a 750-kg car with an initial speed of 110 km/h is observed to coast up a hill to a height 22.0 m
  82. physics

    (a) How high a hill can a car coast up (engine disengaged) if work done by friction is negligible and its initial speed is 110 km/h? (b) If, in actuality, a 750-kg car with an initial speed of 110 km/h is observed to coast up a hill to a height 22.0 m
  83. English

    An author's viewpoint is shown as much by what is left out of a story as by what is included. Which of these details is not included in Breaking Through? a how he earned his scholarships b none of these choices are correct c how his family was able to
  84. to ms.sue-project

    After reading Holes by Louis Sachar, you will complete the book reporting bingo assignment. You will select any five boxes in a row from the board, in any direction across, down, or diagonally, to create a bingo. Each assignment must: •Be neat •Be
  85. reading

    what is the meaning of the " as if they already stood aghast at the bloody work they would look upon form the poem Paul Revere Where does this come from? Context is needed. ?? It comes from the poem Paul Revere by Longfellow. Then line before is And the
  86. Math (PreCalculus)

    The second hand of a clock is 4 inches long. Describe the height of the tip of the second hand from the bottom of a clock. (The radius of the clock is 1 inch more than the length of the second hand.)
  87. english

    this is a scene of the book Dawn Bosco's on her way to summer camp. She can't wait for the fun to begin, but when her shell mirror and a favorite pin disappear, it's time for the Polka Dot Private Eye to investigate. can you tell haiku poem for this scene
  88. Psychology Statistics

    Many animals, including humans, tend to avoid direct eye contact and even patterns that look like eyes. Some insects, including moths, have evolved eye-spot patterns on their wings to help ward off predators. Scaife (1976) reports a study examining how
  89. Language arts, please help!

    A Surprising Point of View: A Television Play in Two Acts Characters: (in order of appearance) 1. JASON: a boy of about 14. He is a student in Ms. Smith’s English class. He regularly misbehaves in order to get attention, and he doesn’t apply himself to
  90. Calculus (Gr.12) Math

    I am not sure how to do this question I know I have to take the derivative but then I am left w/ to unknowns. If a projectile is shot up hill the distance (range) of the landing point up the hill depends on the initial speed of the projectile,v, the angle
  91. PHYSICS

    A major league pitcher can throw a baseball at about 45 m/s (about 100mph). If a baseball has a mass of .55kg how large is the impulse provided by the catchers mitt when he catches the ball.
  92. PHYSICS HELP!!!!!!!!

    A major league pitcher can throw a baseball at about 45 m/s (about 100mph). If a baseball has a mass of .55kg how large is the impulse provided by the catchers mitt when he catches the ball.
  93. Computers

    On Open office the word program how do you do headers. Every time i go to insert header it says default and puts the header on every page. The teacher says it has to be .5 on the right hand corner from our second page to the end. Any Suggestions.
  94. physics

    carts of a roller coaster are travelling 5m/s over the top of the first hill. If there is no energy loss due to friction and the hill is 50m high,what speed will the carts have at the bottom
  95. Physics

    A child and sled with a combined mass of 45.0 kg slide down a frictionless hill. If the sled starts from rest and has a speed of 8.0 m/s at the bottom, what is the height of the hill (include units)?
  96. physics

    carts of a roller coaster are travelling 5m/s over the top of the first hill. If there is no energy loss due to friction and the hill is 50m high,what speed will the carts have at the bottom
  97. trigonometric functions

    a hill slopes upward at an angle of 14 degrees with the horizontal ground.what height does the man reach when he has traveled 100m upward from the foot of the hill
  98. Physics

    A child and sled with a combined mass of 45.0 kg slide down a frictionless hill. If the sled starts from rest and has a speed of 8.0 m/s at the bottom, what is the height of the hill (include units)?
  99. Physics

    A child rides a toboggan down a hill that descends at an angle of 15.5◦ to the horizontal. The hill is 48.1 m long. What is the vertical component of the child’s displacement? Answer in units of m.
  100. Physics

    a fun loving 11.4kg otter slides up a hill and then back down to the same place. If she starts up at 5.75 m/s and returns at 3.75 m/s, how much mechanical energy did she lose on the hill and what happened to that energy