1. physics

    1. A car travels down a straight, flat, level road. Initially, the car is traveling at 80.0 km/hr Northward . After traveling 0.50 0 km , the car is traveling at 95 .0 km/hr. What is the magn i tude of the car ’ s acceleration during this interval ?
  2. physics

    Here is a demonstration Pascal used to show the importance of a fluid's pressure on the fluid's depth : An oak barrel with a lid of area 0.25 m^2 is filled with water. Along, thin tube of cross-sectional area 5.5×10−5 m^2 is inserted into a hole at the center of the lid...
  3. math

    Justin's gas tank is 1/4 full. After he buys 9 gallons of gas, it is 5/8 full. How many gallons can Justin's tank hold? How would i set that up?
  4. Calculus

    Water reaches its maximum density above its freezing point. The volume V (in cubic diameters) of 1 kg of water at temperature T between 0 degrees C and 30 degrees C can be approximated by the formula V=999.87 - 0.06426T + 0.0085043T^2 - 0.0000679T^3. Find the temperature at ...
  5. Math

    You need to buy some filing cabinets. You know that Cabinet X costs $10 per unit, and requires six square feet of floor space. Cabinet Y costs $20 per unit, and requires eight square feet of floor space. You have been given $140 for this purchase, though you don't have to ...
  6. statistics

    Before 33 33 38 33 35 35 40 40 40 31 After 34 28 25 28 35 33 31 28 35 33 Ten different families are tested for the number of gallons of water per day they use before and after viewing a conservation video. Construct a 90% confidence interval for the mean of the differences.
  7. math

    Sara drives 72 miles on 3.2 gallons of gas. She uses this information to calculate how many miles per gallon she can drive. Using this result, how many miles can Sara drive on 13.3 gallons of gas?
  8. math

    clearly define variables. set up the equations.How many gallons of a 30% alcohol solution must be mixed with 60 gallons of a 14% solution to obtain a solution that is 20% alcohol? x represents? y represents? equation 1? equation 2?
  9. Chemistry II

    A solution is prepared by placing 72.8 g of magnesium chloride in 120 g of water at 22oC. a)What is the boiling point of the solution? b)What is the freezing point of the solution?
  10. Chemistry

    Describe what is happening in regards to the heat energy, temperature, molecular potential energy, and molecular kinetic energy when water is boiling.
  11. physics,

    A 40degree Celsius thermometer reads 0.7degree Celsius at it boiling point of water. Evaluate the correct thermometerwhen it reads at 30degree Celsius
  12. physics

    a car is pared on a cliff overlooking the ocean on an incline that makes an angle of 24 below the horizontal. the negligent driver leaves the car in a neutral and emergency brakes are defective. the car rolls down the incline with a constant acceleration of 4 m/s^2 for a ...
  13. chem help

    A sample of methane gas, CH4 was collected over water at 25 degrees celcius and 720 torr. The volume of the wet gas is 2.50L. What will be the volume of the dry methane at a standard pressure?
  14. chemistry help!

    A sample of methane gas, CH4 was collected over water at 25 degrees celcius and 720 torr. The volume of the wet gas is 2.50L. What will be the volume of the dry methane at a standard pressure?
  15. phys

    A mechanic pushes a 2.0 103 kg car from rest to a speed of v, doing 5350 J of work in the process. During this time, the car moves 29.0 m. Neglecting friction between car and road, find each of the following. (a) the speed v m/s (b) the horizontal force exerted on the car
  16. physics

    Just as a car starts to accelerate from rest with an acceleration of 1.4m/s2,a bus moving with a constant speed of 12m/s passes it in a parallel line. 1.How long the car overtakes the bus. 2.How fast will the car then be going. 3.How far will the car then have gone.
  17. Physics

    A mechanic pushes a 2.60 103-kg car from rest to a speed of v, doing 5,000 J of work in the process. During this time, the car moves 21.0 m. Neglecting friction between car and road, find each of the following. (a) the speed v? (b) the horizontal force exerted on the car?
  18. Physics

    A mechanic pushes a 2.60 103-kg car from rest to a speed of v, doing 5,000 J of work in the process. During this time, the car moves 21.0 m. Neglecting friction between car and road, find each of the following. (a) the speed v? (b) the horizontal force exerted on the car?
  19. Chemistry

    I have a balloon that contains 22 grams of Carbon dioxide. The barometric pressure is 1019 millibars which I converted to 1.006 Atm and the temperature is 299 "K". What is the volume of balloon? I used the ideal gas law to find out the volume in liters of the balloon. Is my ...
  20. physiology

    Excess potassium ion is eliminated from the body by a) the digestive system b) the kidneys c) the spleen d) sweating e) the liver b
  21. Science

    Which parts of the frog's nervous system can be observed in its abdominal cavity and hind leg? spinal nerves
  22. algebra II , math

    okay heres one of the ones i need help on can someone explain it to me thanks. Solve each system of equations. Let "z" be the parameter. x +2y +3z =11 2x -y + z = 2
  23. U.S history 1877 to present

    Evaluate the impact of the free enterprise system in stimulating the age of big business.
  24. social studies

    i hope it's ok if i post another question: How did the western nations respond to South Africa's apartheid system?
  25. bio

    please could someone give me good websites which so a fully labled ventilation system of a fish and gills
  26. space science

    how long does it take for our solar system to rotate around the Milky Way galaxy?
  27. Astronomy

    How could you tell if a moon or planet did not form with the rest of the solar system bodies? How might it have gotten there then?
  28. math

    Solve the system by substitution. 3x-3y=-12,y=-3x-12 i see its the same problem rewritten but i confused on what i should do any help would be nice
  29. math

    can someone check this i'm really lost i thought i had it and now i don't think i do. Solve the system by graphing x+y=3,x+y=-1 x+y=-1 x-x+y=-1-x y=-1-x y=-1-(3-y) y=-4y x=3-(4y) x=-1
  30. anatomy

    the function of the respiratory system closely overlaps with that of the A.excretory B.skeletal C.endocrine D. integumentary I believe it is C but not sure
  31. Social Studies

    Explain two reasons why socialists often say that capitalism is a morally unjustified system.
  32. 12th grade

    How is the structure of the female and the male reproductive system suitable for their functions? Please reply soon!!! Thanks.
  33. 6th grade social studies

    President Ruterford B.Hayes tried to change the spoils system by reforming the ---
  34. Precalculus with applications

    Determine whether the system of inequalities is infeasible, has alternate optimal solutions, or is unbounded for the function f(x,y)=2x+y
  35. algebra

    For what value of the constant (c) does the system of equations below have no solutions (x,y)? 3x - 5y = -2.3 6x - cy + 9.3 How would I start to figure this out? Thank you!
  36. Algebra

    For what value of the constant (c) does the system of equations below have no solutions (x,y)? 3x - 5y = -2.3 6x - cy + 9.3 How would I start to figure this out? Thank you!
  37. Math

    How does the thing for metric system, "King Hector Drinks Units of Delicious Milk" work? What does it stand for?
  38. algebra

    I have tried these problem cannot get the answer so could some one help me. Solve by the subsitution method. 2x-7y=-11 2x +17=y What is the solution of the system.
  39. 7thscience

    i need 4 possible outcomes when new info is found about scientific explanation &3 parts of a system?
  40. operating system

    I need help with the following question. I am so lost with it. Here is the link to the problem: tinyurl com / yzejedp
  41. opearting system

    I need help with the following question. I am so lost with it. Here is the link to the problem: tinyurl com /yga8dbd
  42. Physics

    Is it possible for the frictional force to increase the mechanical energy of a system? If so, give 2 examples with brief explanations. If not, why not?
  43. math

    Solve the system of equations by Elimination OR Substitution. Explain why you chose one method over the other. 3x – 2y = 8 2x + 5y = -1
  44. electrical and electronic engineering

    investigate the impact of photovoltaic system on low voltage distribution network in Malaysia.
  45. Physics

    If the Kitty Hawk Flyer has 12 HP how would you express this power in the SI system and report the numerical value in kilowatts?
  46. college financial planning

    How do i prepare journal entries when they ask you to record perpetual system merchandising transactions of a company?
  47. science

    WHich of the following systems will the endocrine system use to send any of it messaqges? THe circulatory The immune The reproductive The excretory
  48. algebra

    what is the solution of the following linear system? 2y + 6x = -24 y - 13x = -12 a) (0,-12) b) none c) (0,3) d) infinite number of solutions and the answer i picked i was a thanks!!!!!!!!!!!
  49. biology

    how does caffeine affect the excretory system? I have looked all over, and I can't find an answer. Please help!
  50. science

    There are ______planets that we know about in our Solar System. Just need to know if my answer or right or wrong. Thanks! :) planets
  51. Social Studies

    How can the World-System theory be applied to the events in Timor Leste since August 1999?
  52. Chemistry

    What is the change in internal energy (in J) of a system that absorbs 0.677 kJ of heat from its surroundings and has 0.438 kcal of work done on it?
  53. Chemistry

    What is the change in internal energy (in J) of a system that absorbs 0.677 kJ of heat from its surroundings and has 0.438 kcal of work done on it?
  54. Chemistry

    What is the change in internal energy (in J) of a system that absorbs 0.677 kJ of heat from its surroundings and has 0.438 kcal of work done on it?
  55. chemistry

    Calculate the change in internal energy for a system that absorbs 242 J of heat and does 193 J of work on the surroundings...
  56. physics

    Through the process of doing work, what allows energy to move between the external world and the system? the result of what???
  57. physics

    Two equal masses m are place at positions r©û= (L, 2L, 3L) and r©ü= (3L, L ,2L). Calculate the moments of inertia Ix, Iy, Iz of the system with respect to the x, y, and z axes.
  58. Linear Equations

    Solve using the elimination method. If the system has no solution or an infinite number of solutions, state this. -2x - 8y = 22 -6x - y = 20
  59. Math

    Solve the following equation in the complex number system. Please show all of your work. x^4 – 13x^2 – 90 = 0
  60. algebra

    solve using the subsitution method 4x+4y=36 4x+4y=12 If the system has no solution or an infinite number of solutions, please help me understand it.
  61. math

    Solve using the substitution method. If the system has no solution or an infinite number of solutions, state this. -2x + 0y = -14 x + 11y = 18
  62. History

    Did Islam enforce a patriarchal gender system? Cite examples from the reading to support or dispute this statement.
  63. MATH

    solve the system of linear equations using the Gauss- Jordan elimination method x1- x2+ 4x3 = 15 x1+ x2 = X3 = 4 -3X1-X2 + X3 = -2
  64. pre calculus

    Ok not sure if it's just me with a block solve the following equation in the real number system. x^4 +3x^3 + 3x^2 + 21x - 28 = 0
  65. sociology HS 2nd year

    What are some of the rules that the caste system imposes?Give me the ans in point ways.
  66. Algebra

    Use slopes and intercepts to determine if the following system is consistent, inconsistent, or dependent. -4x - 5y = 20 -12x - 30y = 60
  67. social studies

    Middle age,Renaissance, reformation, revolution, who came up with the system to classify living things?
  68. World History

    Both Hindus and buddhists believe in A. Many gods B.The caste system C. Formal rituals I got C.
  69. CHEMISTRY

    which of the following represent a buffer system? A.) NaOH and NaBr B.) HF and NaF C.) HC2H3O2 and C12H22O11 D.) HCl and KOH
  70. chemistry

    A dynamic equilibrium, Ag2CO3(s) <=> 2Ag+(ag) , CO3 2- (ag), what affect does the addition af HCl have on the system? Does it cause a shift?
  71. ALGEBRA

    The perimeter of a rectangle is 18 ft.The length is 1 ft longer than the width. Find the deminsions using a system of linear equations.
  72. world geography

    a system in which monarchs or lords gave land to obbles in return for pledges of loyalty was known as: d. feuldalism
  73. Math

    Hi, I can't seem to figure out the answer to this problem. Thanks to anyone who can help! *Solve the system of equations. Write your solution(s) in the form (x,y). y = x^2 x^2 + y^2 = 20
  74. physics

    A 326 g object is attached to a spring and oscillates with a period of 0.25 s. The total energy in this system is 5.83 J. What is the amplitude of the motion?
  75. appliance

    What is the name of the SCR or TRIAC triggering system that triggers the output device at the same point on each AC cycle?
  76. health

    What is the ultimate duty of the reproductive system? A. Menstruation B. Development of sex organs C. Reproduction D. Cell regeneration c?
  77. Chemistry

    Could someone tell me how to use SI prefixes to convert within the SI unit system or link me to a website that teaches this? Thanks
  78. physics

    find the value of 60jule per minute on a system which has 10cm, 100gm and 1minute as fundamental unit
  79. Public Administration

    Explain the budget system model, its consistency with democratic theory, and the importance of data measures.
  80. Math

    42. How many solutions does the system have? 3x + 12y = 20 y = –x + A.)one B.)two C.)infinite D.)none I'm not sure what the answer is, I am bad at these.
  81. calculus

    Solve the equation in the real number system X^4+11x^3+24x^2-23x+35=0 Please show work
  82. Control Syatem

    Give an example of a physical system whose transfer function model has a pole in the right.
  83. Algebra

    Use substitution method to solve the linear system. Can someone please check if I did this problem right? Thanks X+y=12 X+3/2y=3/2 Y=21 x=-9
  84. science

    Create a SOAP note using five medical words from the urinary or male reproductive system
  85. hum111

    How can an athlete manipulate his or her endocrine system function to enhance athletic performance? What might be some risks of doing so?
  86. Physiology

    What are the different nuances of meaning associated with the expressions brain damage and central nervous system impairment?
  87. science

    which component of the technological system is achieved when your camera takes a photograph ? a) input b) feedback c) goal d) constraint
  88. algebra

    Solve the system by graphing: In order to receive credit for this problem you must show all your work. y=x+6 y=-3x+6
  89. History

    In Uncle Tom's Cabin, (the book) did blacks have a racial caste system? Please explain
  90. Pre-Calculus/Trigonometry

    Solve the following system of equations algebraically. Verify your solution by using matrices. 3x-y=0 5x+2y=22
  91. science

    The muscular system is essential because it allows our bones to A. Strength B. Contract C. Lengthen D. Move Is the answer is D? Thanks.
  92. MATH

    For the following system of equations, what is the x-value of the solution? -x + 2y = 6 6y = x + 18 A. -18 B. 0 C. -6 D. 3 Confused? Still trying to work it out. Please help! Thanks
  93. Physics

    Find the potential energy of a system often point charges. 7nC and 2nC separated by 0.03m
  94. Chemistry

    how many grams of ammonium chloride are needed to raise the ammonia level 5 ppm in a 300 gallon system?
  95. Math

    Solve each system by using the elimination method. Make sure to write your answer in (x,y) form. 1.) 3x-5y=2 2x+5y=13 2.) 3x+11y=4 -2x-5y=9
  96. pre - CALCULUS

    Solve the system of equations using matrices. Use Gaussian elimination with back- substitution. x+y+z = -5 x-y+3z = -1 4x+y+z = -2
  97. pre-calc

    Solve the system of equations using matrices. Use Gaussian elimination with back- substitution. x+y+z = -5 x-y+3z = -1 4x+y+z = -2
  98. pre-calc

    Solve the system of equations using matrices. Use Gaussian elimination with back- substitution. x+y+z = -5 x-y+3z = -1 4x+y+z = -2
  99. Algebra 2

    Can someone please tell me how to solve and graph this system of trinomial quadratic inequalities? {y is greater than or equal to x^2+6x+12} {y<-x^2-8x-12 }
  100. Algebra 2

    Can someone please tell me how to solve and graph this system of trinomial quadratic inequalities? {y is greater than or equal to x^2+6x+12} {y<-x^2-8x-12 }
  1. Pages:
  2. 1
  3. 2
  4. 3
  5. 4
  6. 5
  7. 6
  8. 7
  9. 8
  10. 9
  11. 10
  12. 11
  13. 12
  14. 13
  15. 14
  16. 15
  17. 16
  18. 17
  19. 18
  20. 19
  21. 20
  22. 21
  23. 22
  24. 23
  25. 24
  26. 25
  27. 26
  28. 27
  29. 28
  30. 29
  31. 30
  32. 31
  33. 32
  34. 33
  35. 34
  36. 35
  37. 36
  38. 37
  39. 38
  40. 39
  41. 40
  42. 41
  43. 42
  44. 43
  45. 44
  46. 45
  47. 46
  48. 47
  49. 48
  50. 49
  51. 50
  52. 51
  53. 52
  54. 53
  55. 54
  56. 55
  57. 56
  58. 57
  59. 58
  60. 59
  61. 60
  62. 61
  63. 62
  64. 63
  65. 64
  66. 65
  67. 66
  68. 67
  69. 68
  70. 69
  71. 70
  72. 71
  73. 72
  74. 73
  75. 74
  76. 75
  77. 76
  78. 77
  79. 78
  80. 79
  81. 80
  82. 81
  83. 82
  84. 83
  85. 84
  86. 85
  87. 86
  88. 87
  89. 88
  90. 89
  91. 90
  92. 91
  93. 92
  94. 93
  95. 94
  96. 95
  97. 96
  98. 97
  99. 98
  100. 99
  101. 100