Questions Asked on
October 9, 2012

  1. Chemistry

    2H2+O2 -> 2H20 changeHrxn=-484 KJ Which answer best describes the transfer heat that occurs when 1.30 mol of H2 reacts? 629 KJ released 315 KJ absorbed 315 KJ released 484 KJ absorbed 484 KJ released 629 KJ absorbed

    asked by Anonymous
  2. Chemistry

    Which of the following substances have a standard heat of formation (ÄHf°) of zero? O2(g) at 25.0 degree C and 1 atm Fe at 1200 degree C C2H6(g) at standard conitions Cl2(g) at 2 atm

    asked by Anonymous
  3. math

    15. Harriet needs to ship a small vase. The box she will use has a volume of 216 cubic inches. If the side lengths are all the same, what is the length of each side of the box? Hint: V = s^3

    asked by jman
  4. Chemistry

    A gas is allowed to expand at constant temperature from a volume of 2.00 L to 11.20 L against an external pressure of 1.500 atm. If the gas loses 256 J of heat to the surroundings, what are the values of q, w, and ΔU? Pay careful attention to units.

    asked by Syed
  5. Chemistry

    A galvanic (voltaic) cell consists of an electrode composed of aluminum in a 1.0 M aluminum ion solution and another electrode composed of fold in a 1.0 M gold (III) ion solution connected by a salt bridge. Calculate the standard potential for this cell at

    asked by Morgan
  6. AP ECE Physics

    A car at the Indianapolis-500 accelerates uniformly from the pit area, going from rest to 295 km/h in a semicircular arc with a radius of 190 m. Determine the tangential acceleration of the car when it is halfway through the turn, assuming constant

    asked by John Conlan
  7. science

    A golfer tees off and hits a golf ball at a speed of 31 m/s and at an angle of 35 degrees. How far did the ball travel before hitting the ground? Round the answer to the nearest tenth of a meter.

    asked by Miguel Hernandez
  8. Chemistry

    Imagine that, in lab, you record the mass of a piece of metal, mmetal, as Tmetal=84.0 degree C In another step of this lab, you record the mass of water (mwater) in a coffee cup as Twater1=26.0 degree C Twater2=29.0 degree C With the information above and

    asked by Anonymous
  9. Chemistry

    2Fe2O3 -> 4Fe+3O2 changeHrxn= +824.2 KJ The decomposition of 57.0 g of Fe2O3 results in The release of 23500 KJ of heat The absorption of 147 KJ of heat The absorption of 23500 KJ of heat The absorption of 294 KJ of heat The release of 294 KJ of heat The

    asked by Anonymous
  10. Physics

    A pendulum consists of a small object hanging from the ceiling at the end of a string of negligible mass. The string has a length of 0.88 m. With the string hanging vertically, the object is given an initial velocity of 1.7 m/s parallel to the ground and

    asked by Ben
  11. organic chem

    A mixture of ethyl iodide (b.p. 72.3) and water boils at 63.7 C. What weight of ethyl iodide would be carried over by 1 gm of steam during steam distillation

    asked by dananny
  12. chemistry

    Given the thermochemical equation 2SO2(g) + O2(g) → 2SO3(g), ΔH= -198 kJ/mol, how much heat is evolved when 600. g of SO2 is burned? A. 5.46 x 10-2 kJ B. 928 kJ C. 1.85 x 103 kJ D. 59,400 kJ E. 3.71 x 103 kJ

    asked by Anonymous
  13. physics

    A gazelle is running in a straight line (the x-axis). The graph in the figure (Figure 1) shows this animal's velocity as a function of time. During the first 12.0 , find the total distance moved

    asked by Aj
  14. english

    How would you briefly describe Poe's requirement for the short story genre?

    asked by LEE
  15. Chemistry

    How do I write ZnSo4(aq)+Na3Po4(aq)---> Zn3(Po4)2(s)+Na2S04(aq)as a net ionic equation balanced?

    asked by Crystal
  16. Physics

    Two pole-vaulters just clear the bar at the same height. The first lands at a speed of 8.50 m/s, and the second lands at a speed of 8.80 m/s. The first vaulter clears the bar at a speed of 1.50 m/s. Ignore air resistance and friction and determine the

    asked by Sam
  17. Chemistry

    An unknown substance has a mass of 16.3 g. The temperature of the substance increases by 20.1 degrees Celsius when 126 J of heat is added to the substance. What is the most likely identity of the substance? The table lists the specific heat capacities of

    asked by Anonymous
  18. chemistry

    Consider the following overall reaction which is experimentally observed to be second order in AB and zero order in C: AB+C -> A+BC Determine whether the mechanism below is valid for this reaction AB+ AB -> AB(sub 2) + A slow AB(sub2) + C -> AB+BC fast

    asked by michelle
  19. Algebra

    Debra has 2/3 of a pound of loose green tea leaves. If she wants to keep one-half of the tea at home and the other half at work, what fraction of a pound will she have at work? 1/6, 1/4, 1/3, or 1/2? I would personally say 1/3, but, could someone explain

    asked by 123c:
  20. phy

    force in the x-direction with magnitude Fx=18N-(0.530N/m)x is applied to a 5.50 box that is sitting on the horizontal, frictionless surface of a frozen lake. is the only horizontal force on the box. what is the speed after 12m. starting from rest and x=0

    asked by lvf
  21. math

    A candle is 17 in. tall after burning for 3 hours. After 5 hours, it is 15 in. tall. Write a linear equation to model the relationship between height h of the candle and time t. Predict how tall the candle will be after burning 8 hours.

    asked by jake
  22. Chemistry

    How many electrons will each element gain in forming an ion? a. Nitrogen ______ b. Oxygen ________ c. Sulfur _______ d. bromine _______

    asked by Greg
  23. 2 math questions

    13. Write a translation rule that maps point D(7, –3) onto point D'(2, 5). 14. Triangle ABC has coordinates A(1, 4); B(3, –2); and C(4, 2). Find the coordinates of the image A'B'C' after a reflection over the x-axis

    asked by jman
  24. world history

    What is a good grabber for an Hammurabi's Code essay???

    asked by sarah meyers
  25. geometry

    PM is the median of trapezoid KLNO. If ON = 30 centimeters and KL = 20 centimeters, what is the length of PM?

    asked by Maurice
  26. Math, Algebra.

    2. Sylvia has 6 1/2 boxes of chocolate to share at a family picnic. If she gives each person 1/3 of a box, how many people can receive chocolate? 13, 17, 19, or 21? I believe that the answer is 19. Take 6 1/2, divided by 1/3, and get 19 1/2. Since 19 is

    asked by -3-
  27. physics

    Two mountain climbers are working their way up a glacier when one falls into a crevasse. The icy slope can be considered frictionless. Sue's (the one who fell) weight is pulling Paul up the 45 degree slope. If Sue's mass is 66 kg and if she falls 2 min 10

    asked by sam
  28. chemistry

    Write a balanced chemical equation for the reaction of solid magnesium with aqueous iron(II) chloride to form aqueous magnesium chloride and solid iron. (Type your answer using the format CO2 for CO2. Use the lowest possible coefficients.)

    asked by robert nelson
  29. english

    How would you briefly describe what the lerary movement Romanticism valued?

    asked by LEE
  30. College Physics

    A block weighing 70.0 N rests on a plane inclined at 25.0° to the horizontal. A force F is applied to the object at 50.0° to the horizontal, pushing it upward on the plane. The coefficients of static and kinetic friction between the block and the plane

    asked by JB
  31. Chemistry

    Methane gas reacts with diatomic sulfur in the gas phase, producing carbon disulphide and hydrogen sulfide. The rate constant for this reaction is 1.1 (L/M.s) at 550 oC. If it is 6.31 (L/M.s) at 624 oC, what is the value of the activation energy for this

    asked by MK
  32. chemistry

    How much in $ is one MOLE of pennies?

    asked by Shay
  33. Physics

    A 0.20-kg ball on a stick is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position, the stick tension is 16N. Find the tensions in the stick when the ball is at the twelve o'clock and at the six o'clock positions.

    asked by Anonymous
  34. chemistry

    Determine the mass of CuSO4.5H20 needed to make 250 mL of a .100M CuSO4.5H20 aqueous solution..

    asked by danielle
  35. chemistry

    In a coffee-cup calorimeter, 1.91 g of NH4NO3 is mixed with 75.0 g of water at an initial temperature of 25.00oC. After the solution of the salt, the final temperature was 20.94oC. Assuming the solution has a heat capacity of 4.18 J/(goC) and assuming no

    asked by Shawn
  36. Repost-Physics 1

    Consider a roller coaster that moves along the track shown in the figure below. Assume all friction is negligible and ignore the kinetic energy of the roller coaster's wheels. Assume the roller coaster starts with a speed of 19 m/s at point A. Find the

    asked by John
  37. o Chem

    a sample consisting of 1-bromopropane and 1-chloropropane isinjected into a gas chromatograph quipped with a nonpolar column.which compound has the shorter retention time? Explaine the answer. b.if the same sample were run several days later with

    asked by MELISSA
  38. Physics

    An artillery shell is fired with an initial velocity of 300m/s at 55.0 degrees above the horizontal. To clear an avalanche, it explodes on a mountainside 42.0s later. What are the x and y coordinates of the shell where it explodes, relative to its firing

    asked by Lindsay
  39. physics

    what is the distance between centers of a baseball of mass 0.145 kg and a bowling ball of mass 5.5 kg, such that the gravitational force between them is 1.3 * 10^6N

    asked by nana
  40. Science

    Predict what would happen to the weather in the north-eastern united states if the polar jet stream dipped to the south. How would the weather change if the jet stream moved to the north?

    asked by SoccerStar
  41. chemistry

    How much energy is required to raise the temperature of 3 kg of lead from 15C to 20C? Use the table below and this equation: Q = mcT.

    asked by bebe
  42. Physics

    A truck carrying a 65.4 kg crate accelerates from rest to 53.9 km/h on a flat horizontal surface in 15.2 seconds. The crate does not slip in the truck bed. The acceleration was not constant. How much work was done on the crate by the truck?

    asked by Anonymous
  43. HCA

    a 700- to 1,050-word paper that includes the following: • Describe the principles of verbal and nonverbal communication. • Explain which three principles you think are critical for effective communication. • Include at least one personal experience

    asked by jackie
  44. 6th grade Math

    Maria is applying for a summer job. Six employees doing the same work earn $8.00, $8.50, $9.00, $9.50, $10.00, and $23.50 per hour. In the interview, the boss tells Maria that the median of the hourly wages is $9.25. Is the boss’s statement misleading?

    asked by Aimee
  45. Env. Sci.

    Explain how an organism can be dead, yet still considered a biotic factor.

    asked by Neil
  46. PreCal

    In a grocery store, you push a 14.5 kg shopping cart with a force of 12 N. If the cart starts from rest, how far does it move in 3 sec?

    asked by Gabi
  47. Math

    Why could the mean of the data set below be misleading? ages of teachers: 29, 38, 39, 26, 29, 29, 39, 77, 38, 29

    asked by Missy
  48. Science

    a 25 kg object moving at 15 m/s collides with at 15 kg object that is standing still. They stick together and keep moving, what is their final velocity?

    asked by Anonymous
  49. Grammar

    This patient is alert, conscious, cooperative, in no acute distress, stable, and oriented times 3. A) complete sentence B) fragment C) run-on I want to say A but think it is C

    asked by Marie
  50. pre calculus

    A farmer will be adding a rectangular corral to his barn. He has 600 feet of fencing. The part of the barn that is attached to the corral is 150 feet long. Write a function for the area of the corral, A(x) and include the domain Find the answers for both

    asked by stephenie
  51. Grammar

    Risk factors that are involved. A) complete sentence B) fragment C) run-on To me this seems like a fragment, because what risk factors? If it is A then I was way wrong

    asked by Marie
  52. Chemistry

    Complete the electron dot structure below to show how beryllium flouride (BeF2) is formed. F F Be+ -> Be F F

    asked by Greg
  53. physics

    Question Part Points Submissions Used 1 2 –/1 –/2 0/3 0/3 Total –/3 A force of 12.8 N pulls horizontally on a 0.9 kg block that slides on a rough, horizontal surface. This block is connected by a horizontal string to a second block of mass m2 = 2.04

    asked by Anonymous
  54. physics

    A frictionless30degrees incline should provide an acceleration of 4.90m/s2 down the incline. A student with a stopwatch finds that an object, starting from rest, slides down a 15m very smooth incline in exactly 3s. Is the incline frictionless?

    asked by julia
  55. Repost-Physics 1

    A skier of mass 109 kg travels down a frictionless ski trail. a)If the top of the trail is a height 218 m above the bottom, what is the work done by gravity on the skier? _____J b)Find the velocity of the skier when he reaches the bottom of the ski trail.

    asked by John
  56. Geometry

    Can you tell em if this is right? If not, can you tell me what words go where? A truth value statement can be written in the form “if P, then Q.” This “if, then” statement can be true or false. The “if” part is called the hypothesis, and the

    asked by Joel
  57. Physics - repost

    A pendulum consists of a small object hanging from the ceiling at the end of a string of negligible mass. The string has a length of 0.88 m. With the string hanging vertically, the object is given an initial velocity of 1.7 m/s parallel to the ground and

    asked by Ben
  58. 6th grade science

    I know how to do the expiriment but I need help with the essay this about the glass cup over the candle and it sucks water.this is what I've got"When you put a cup on top of a lit up candle warm air gets trapped under the glass. Once the glass cools it

    asked by Molisa
  59. physics

    A pelican flying along a horizontal path drops a fish from a height of 6.0 m. The fi!@#$%^&ravels 7.7 m horizontally before it hits the water below. What was the pelican’s initial speed? The acceleration of gravity is 9.81 m/s 2. If the pelican was

    asked by David
  60. Chemistry

    Upon decomposition, one sample of magnesium fluoride produced 1.65kg of magnesium and 2.58kg of fluorine. A second sample produced 1.50 kg of magnesium. How much fluorine (in grams) did the second sample produce?

    asked by Eliza
  61. Physics

    A 30 meter wide canal is flowing at the rate of 20 m/min. A boy can swim at the rate of 25 m/min in still water. The time taken by him to cross the canal perpendicular to the flow is

    asked by Judish
  62. Physics

    Please help!!! Physics test!? I have a physics test tomorrow on projectile motion, and I don't feel ready for it. I'm having trouble in the class and I need to ace this test. The problem is I get confused when I get a problem. I don't know how to proceed.

    asked by Mike
  63. Chemistry

    Complete the electron dot structure below to show how beryllium flouride (BeF2) is formed. F F Be+ -> Be F F

    asked by Greg
  64. Chemistry

    The combustion of 0.0222g of isooctane vapor, C8H18(g), at constant pressure raises the temperature of a calorimeter 0.400 degrees C. The heat capacity of the calorimeter and water combined is 2.48kJ/degrees C. Find the molar heat of combustion of gaseous

    asked by Heather
  65. College Physics

    A rifle bullet with a mass of 17.5 g traveling toward the right at 293 m/s strikes a large bag of sand and penetrates it to a depth of 23.6 cm. Determine the magnitude and direction of the friction force (assumed constant) that acts on the bullet.

    asked by JB
  66. Math kindergarten

    The question in the math kindergarten homework is : Have children count the birds in the picture and then draw the correct number of counters to show how many. How do you draw counters? Thanks.

    asked by Rap
  67. math

    write a situation that can be represented by the algebraic expression $3.50.

    asked by joseph osuna
  68. PHYSICS

    Alump of lead with mass 0.50kg is dropped from a hight of 20m onto a hard surface. it doesn't rebound but remains there at rest for a long periods of time. what are Q,W,UFOR THE LEAD DURING THE PROCESS.

    asked by Anonymous
  69. Physics

    A crate of mass m = 31 kg rides on the bed of a truck attached by a cord to the back of the cab as in the figure. The cord can withstand a maximum tension of 82 N before breaking. Neglecting friction between the crate and truck bed, find the maximum

    asked by Kelly
  70. Chemistry

    If the heat of combustion for a specific compound is -1320.0 kJ/mol and its molar mass is 92.41 g/mol, how many grams of this compound must you burn to release 544.30 kJ of heat?

    asked by Anonymous
  71. Pre-Calc

    1. Determine the quadrant in which the terminal side of the angle is found and find the corresponding reference angle. theta = 4 I know how to find the terminal side when theta has pi in it (for example: 4pi/3), but I don't understand what just "4" means.

    asked by Anonymous
  72. Repost-Physics 1

    A car is pushed along a long road that is straight, horizontal, and parallel to the x direction. a)The horizontal force on the car varies with x as shown in the figure. What is the work done on the car by this force? (Let a = 100 N.) _____J b)What is the

    asked by John
  73. Grammar

    The heart catheterization indicated some abnormality of the heart muscle, this may have possibly been a blood clot. A) complete sentence B) fragmet C) run-on I say it is A

    asked by Marie
  74. Science

    What is the final pressure of the gas relative to its initial pressure when there is an increase in Kelvin temperature of a cylinder of compressed gas by a factor of 2.7?

    asked by Patrick
  75. Physics

    In a circus performance, a monkey on a sled is given an initial speed of 3.2 m/s up a 31° incline. The combined mass of the monkey and the sled is 20.7 kg, and the coefficient of kinetic friction between the sled and the incline is 0.20. How far up the

    asked by Viv
  76. WORK~PHYSICS

    A crate is dragged 15m along a horizontal surface by a rope which makes an angle of 37° with the horizontal. How much work is done? Please help me with this question.

    asked by BOOKER PERRY
  77. pre-calculus

    find the functions f and g so that Fog = H. H(x)=/2x+1\

    asked by ladybug
  78. Help Physics

    A child with a mass of 39 kg stands on a spring scale inside an elevator. For each of the scenarios below, draw a force diagram of the forces acting on the child and calculate the reading of the scale in newtons. (a) The elevator is at rest. _______ N (b)

    asked by arcos15
  79. Physics

    A wheel of arduous 30 cm is rotating at a rate of 2.0 revolutions every 0.080 s. Through what angle, in radians, does the wheel rotate in 1.0 s? What is the linear speed of a point on the wheel's rim? What is the wheel's frequency of rotation?

    asked by Anonymous
  80. Physics

    A pendulum consists of a small object hanging from the ceiling at the end of a string of negligible mass. The string has a length of 0.77 m. With the string hanging vertically, the object is given an initial velocity of 1.8 m/s parallel to the ground and

    asked by StressedStudent
  81. Physics

    A pendulum consists of a small object hanging from the ceiling at the end of a string of negligible mass. The string has a length of 0.88 m. With the string hanging vertically, the object is given an initial velocity of 1.7 m/s parallel to the ground and

    asked by Sam
  82. Grammar

    With a plan of possible surgery in the immediate future given his diabetes. A) complete sentence B) fragment C) run-on This seems like a big fragment to me, but

    asked by Marie
  83. physics

    On a banked race track, the smallest circular path on which cars can move has a radius of 105 m, while the largest has a radius of 175 m, as the drawing illustrates. The height of the outer wall is 18.7 m. Find (a) the smallest and (b) the largest speed at

    asked by ben
  84. childare management

    which one of the following statements about childcare centers is correct?

    asked by moniica
  85. Grammar

    Today painful and swollen such that he cannot fish. A) complete sentence B) fragment C) run-on I answered b

    asked by Marie
  86. Grammar

    The patient's ultrasound showed dilated gallbladder with no stones present, this was consistent with cholecystitis. A) complete sentence B) fragment C) run-on I answerwed A

    asked by Marie
  87. Astrophysics

    Star Power and Temperature Star A and Star B Consider two stars that are the same size (they have the same diameter), but have different surface temperatures. Let’s say Star A’s temperature is 3000 K and Star B’s temperature is 4500 K. Let’s look

    asked by Lisa
  88. Physics

    A dockworker loading crates on a ship finds that a 22-kg crate, initially at rest on a horizontal surface, requires a 80-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 59 N is required to keep it moving

    asked by Kelly
  89. Algebra

    Tom has a 15 foot ladder that he leaned against the wall of his house. Tom put the base of the ladder 3 feet away from the house. How far up The house is the top of the ladder?

    asked by Carmen
  90. Chem

    A 0.2181 g sample of KHP required 17.29 mL of sodium hydroxide solution to reach the phenolphthalein end point. Calculate the molarity(M) of the NaOH solution.

    asked by Donnie
  91. Math

    Game tickets for 1 adult and 2 kids is $21. The adult ticket is $3 more than the kid ticket. How much does adult ticket cost? How much does a child ticket cost? Use a let statement. Write an equation. (21-3) / 3 = x 18/3=x X = $6 (child ticket) X + 3 = $9

    asked by Meagieting
  92. physics

    if the kinetic friction on a sliding box (9.5kg) of books was 23.5,what was the total force exerted to slide the box

    asked by Anonymous
  93. Physics

    A peregrine falcon dives at a pigeon. The falcon starts downward from rest with free-fall acceleration. If the pigeon is 66.0 m below the initial position of the falcon, how long does the falcon take to reach the pigeon? Assume that the pigeon remains at

    asked by Mel
  94. Physics

    In a circus performance, a monkey on a sled is given an initial speed of 3.2 m/s up a 31° incline. The combined mass of the monkey and the sled is 20.7 kg, and the coefficient of kinetic friction between the sled and the incline is 0.20. How far up the

    asked by Emma
  95. Grammar

    The patient was admitted to the floor for abdominal pain and diarrhea, initial diagnosis was a possible small-bowel obstruction. A) complete sentence B) fragment C) run-on Seems like C would be the best answer as a run-on

    asked by Marie
  96. Integrated 2

    Aaron has 20 dimes and nickels which together total is 1.40 how many of each does he have

    asked by Sam
  97. Grammar

    Returns now complaining of increase in depression over the past several months, resulting in an emergency room visit. A) complete sentence B) fragment C) run-on Who returns is my first thought, I answered it as B..

    asked by Marie
  98. Repost-Physics 1

    A crate of mass 48 kg is pushed up a frictionless ramp by a person as shown in the figure below. Calculate the work done by the person in pushing the crate a distance of 11 m as measured along the ramp. Assume the crate moves at constant velocity. _____J

    asked by John
  99. Grammar

    The risks, benefits, and alternatives to this procedure, including the risk of bleeding, infection, injury to adjacent organs, and death were explained to the patient. A) complete sentence B) fragment C) run-on Seems like it could be A and the C because

    asked by Marie
  100. Grammar

    Abdomen was soft, obese, nontender, except in the location of the hernia, which was approximately 7 x 5 cm just to the right of midline. A) complete sentence B) fragment C) run-on I answered A

    asked by Marie
  101. Geometry

    On a trip from Virginia to Florida the Smith family wants to travel at least 420 miles in 8 hours of driving, what must their average rate of speed be? Would it be 420 divided by 8= 52.5 miles an hour? Thank you!

    asked by Erin :)
  102. chemistry

    What is the formula equation and balance it and also give the sum coefficient of: 1.sulfur dioxide(g)+oxygen(g)delta arrow (sorry i can't draw it here) sulfur trioxide 2. nitrogen dioxide(g)+dihydrogen monoxygen(l)- nitric acid(g)+nitrogen monoxide

    asked by bertshie
  103. Grammar

    He is an elderly man in no apparent distress, he is somewhat short of breath. A) complete sentence B) fragment C) run-on I say it is a run-on

    asked by Marie
  104. Grammar

    This is a young woman whom I have treated for depression, she was last seen a year ago. A) complete sentence B) fragment C) run-on I say it sounds like a run-on

    asked by Marie
  105. pre-cal

    solve the equation algebraically. 7e^x=11-e^-x

    asked by ladybug
  106. physics

    A record was set for stair climbing when a man ran up the 2300 steps of the Empire State Building in 10 minutes and 20 seconds. If the height gain of each step was 0.2 m, and the man's mass was 63.0 kg, what was his average power output during the climb?

    asked by xp
  107. Grammar

    The patient denies any cardiac symptoms, angina, shortness of breath, any infectious disease, any bleeding disorder, or any pulmonary disorders. A) complete sentence B) fragment C) run-on I say its a complete sentence:)

    asked by Marie
  108. math

    cody has 6 times as many bottle caps in his collection as Rebecca. cody has 36 bottle caps. write an equation to find the number of bottle caps rebecca has,c

    asked by jenny
  109. physics

    A 110 kg object moves in a horizontal straight line with an initial speed of 54 m/s. If it is stopped along that line with a deceleration of 1.90 m/s2 what magnitude of force is required?

    asked by John
  110. stats

    the head circumferences of adult males have a bell-shaped distribution with the mean= 65cm and standard deviation =2cm. a. what is the head circumference such that only 2.5% of adult males have a smaller head circumference? b. what is the head

    asked by jenny
  111. physics

    A boat moves through the water with two forces acting on it. One is a 2.05 103 N forward push by a motor, and the other is a 1.75 103 N resistive force due to the water. (a) What is the acceleration of the 1080 kg boat? (b) If it starts from rest, how far

    asked by ken
  112. CHEMISTRY

    The enthalpy of neutralization for the reaction of a strong acid with a strong base is −56 kJ/mol of water produced. How much energy will be released when 200.5 mL of 0.400 M HCl is mixed with 149.1 mL of 0.500 M NaOH?

    asked by Sarah
  113. Physics

    A pitcher throws a 0.107-kg baseball, and it approaches the bat at a speed of 31.7 m/s. The bat does 77.9 J of work on the ball in hitting it. Ignoring air resistance, determine the speed of the ball after the ball leaves the bat and is 22.7 m above the

    asked by StressedStudent
  114. Algebra

    A natural food store makes its own brand of trail mix out of dried apples, raisins, and peanuts. One pound of the mixture costs 3.18. It contains twice as much peanuts by weight as apples. One pound of dried apples cost $4.48, a pound of raisins costs

    asked by Megan
  115. SS8R - Help!!!!!!!

    Why did treaties between Native Americans and the United States fail to bring peace to the Plains?

    asked by Laruen
  116. Science

    I can't find this answer in my book but can someone tell me if its right please? When you remove electrons from a metal cup, the cup becomes: negatively charged - positively charged or ionized? I think it is negatively charged. Thanks

    asked by Sue
  117. Science

    Q-How does room temp. affect student performance? H-If the amount of room temp. increase,then........ Q-question H-hypothesis

    asked by Grechia
  118. Repost-Physics 1

    A horizontal force of 30 N pulls a block of mass 2.5 kg across a level floor. The coefficient of kinetic friction between the block and the floor is ìK = 0.25. If the block begins with a speed of 2.0 m/s and is pulled for a distance of 18 m, what is the

    asked by John
  119. Repost-Physics 1

    Two railroad cars, each of mass 2.2 104 kg, are connected by a cable to each other, and the car in front is connected by a cable to the engine as shown in the figure below. The cars start from rest and accelerate to a speed of 1.7 m/s after 1 min. a)Find

    asked by John
  120. Physics

    A freight train has a mass of 1.5*10^7 kg. If the locomotive can exert constant pull of 4.5 *10^5N, how long does it take to increase the speed of the train from res to 80.0km/hr? a)467s b) 444s c)527s d) 425s e) 496s

    asked by Mark
  121. Physics- Elena please help!

    A 85.0 kg base runner begins his slide into second base when he is moving at a speed of 2.10 m/s. The coefficient of friction between his clothes and Earth is 0.570. He slides so that his speed is zero just as he reaches the base. (a) How much mechanical

    asked by Anonymous
  122. math

    How much does Jane pay for 1.75 kg of apples at $0.48 per 100 grams?.

    asked by Anonymous
  123. Physics

    Consider a force F = 815 N pulling 3 blocks of masses m1 = 7.94 kg, m2 = 15.3 kg, and m3 = 32.4 kg along a frictionless horizontal surface. Find the acceleration a of the blocks. Answer in units of m/s2.

    asked by Priscilla
  124. Algebra

    At noon the temperature is 30 degree F. For the next several hours the temperature falls by an average of 3 degrees F an hour. What's the equation for the temperature and the hours after noon?

    asked by Caky
  125. Statistics

    Given that x is a normally distributed random variable with a mean of 28 and a standard deviation of 7, find the following probability: P(x

    asked by Anonymous
  126. Grammar

    Insulin, Celebrex, and Accupril, which he is just finishing. A) complete sentence B) fragment C) run-on I answered B

    asked by Marie
  127. Science

    Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 15.2 g of biphenyl in 29.5 g of benzene?

    asked by Maria
  128. math

    This problem from China is almost 2000 years old: Find a number that when divided by 3 gives a remainder of 1, when divided by 5 gives a remainder of 4, and when divided by 7 gives a remainder of 2.

    asked by Christina
  129. 7th grade math pygorean theroem ms.sue correct

    4. A wire is stretched from the top of a 26-foot pole to a point on the ground that is 15 feet from the bottom of the pole. Approximately how long is the wire in feet? (1 point) 16 21 30 37 4.30 is it correct?

    asked by Delilah
  130. Math

    Movies A survey of 350 customers was taken at Regal Cinemas in Austin, Texas, regarding the type of movies customers liked. The following information was determined. 196 liked dramas. 153 liked comedies.  88 liked science fiction.  59 liked dramas and

    asked by nicole
  131. Chem Problem

    Help Please? In the preparation of a mustard solution, an individual package of mustard was emptied into a beaker and the mass was determined to be 3.809 grams. The mustard was then dissolved in 50.0 ml. of distilled water. The total mass of the solution

    asked by Kelli
  132. MATH

    BENNY PLAYS TWO SPORTS. HE PLAYS SOCCER FOR 3/4 OF THE TIME AND PLAYS BASEBALL FOR 30-MINUTES. HOW MANY MORE MINUTES DOES HE PLAY SOCCER THAN BASEBALL? My answer is he plays soccer 7 minutes more. Am I correct. How do I make a diagram for this problem.

    asked by MARTHA
  133. Grammar

    Abdomen was nondistended. A) complete sentence B) fragment C) run-on My answer was b

    asked by Marie
  134. Science

    Are hydrogen bonds weak or strong?

    asked by Us an
  135. Grammar

    After he rests from a golfing trip, this pain goes away. A) complete sentence B) fragment C) run-on I say it is a fragment because shouldn't it say "his pain goes away"?

    asked by Marie
  136. Physics

    A baseball is hit at ground level. The ball reaches its maximum height above ground level 3.2 s after being hit. Then 2.7 s after reaching its maximum height, the ball barely clears a fence that is 81.0 m from where it was hit. Assume the ground is level.

    asked by Devin
  137. Chemistry

    A sample of helium has a volume of 325mL and a pressure of 655mmHg. What wll be the pressure if the helium is compressed to 125mL (T constant)?

    asked by Mel
  138. science fair

    I need to do a project for the science fair but I don't know what to do. My science teacher says it has to be like the water dancing on a penny, everything has to be the same but you have to change one thing. What can I do?????? HELP ME PLEASE :/

    asked by Molisa
  139. math

    If you borrow $15,000 from your dad for college and you agree to pay him $25,000 back at 8% compound interest per year. How many years do you think you have to do this? In other words, given the amounts and the interest rate, what is the number of years?

    asked by Martin
  140. Grammar

    The patient is to follow up in the surgery clinic. A) complete sentence B) fragment C) run-on I think it is a(a complete sentence)

    asked by Marie
  141. physics

    A 110 kg object moves in a horizontal straight line with an initial speed of 54 m/s. If it is stopped along that line with a deceleration of 1.90 m/s2 what magnitude of force is required?

    asked by John
  142. Physics

    A 19 N thrust is exerted on a 0.4 kg rocket for a time interval of 8 s as it moves straight up. (Neglect all forces except this thrust and the force of gravity.) The rocket then continues to move upward as its speed reduces steadily to zero. (a) What is

    asked by arcos15
  143. Grammar

    Generalized fatigue with body aches and pains. A) complete sentence B) fragment C) run-on my answer is b because it doesn't explain very much..

    asked by Marie
  144. Grammar

    The patient tolerated the procedure well without any complications. A) complete sentence B) fragment C) run-on To me it is a, a complete sentence..

    asked by Marie
  145. Chemistry

    How many mL of the 0.1029 M standard NaOH solution is required to titrate 0.2247 g sample of KHP to the phenolphthalein end point?

    asked by Erin
  146. Grammar

    A lot of time thinking about how poorly she is doing. A) complete sentence B) fragment C) run-on This has got to be a fragment...it doesn't discribe who and why

    asked by Marie
  147. Grammar

    He was breathing somewhat quickly, his respiratory rate was 36. A) complete sentence B) fragment C) run-on C is my answer because shouldn't it say "and his"

    asked by Marie
  148. Grammar

    The gallbladder is partially filled with many small stones, they are mobile. A) complete sentence B) fragment C) run-on This is tricky too, shouldn't it say "and they are" to be complete? I say it is b or c

    asked by Marie
  149. WORK

    A crate is dragged 15m along a horizontal surface by a rope which makes an angle of 37° with the horizontal. How much work is done? Please help me with this question.

    asked by BOOKER PERRY
  150. Grammar

    Lungs clear to auscultation. A) complete sentence B) fragment C) run-on I say it is complete So A would be my answer.

    asked by Marie
  151. stats

    The life of tires manufactured by Omega Tires Inc is believed to be normally distributed with a mean of 110,000 km and a standard deviation of 5,000 km. A random sample of 200 tires is tested . What is the problability of the mean life of this sample being

    asked by Carlos
  152. SS8R - help!!!!!!! (2)

    Why were many Plains Indians attracted to Wovoka's teaching about the Ghost Dance?

    asked by Laruen
  153. stats

    A manufacturing process has 100 customer orders to fill. Each order requires one component part that is purchased from a supplier. However, typically, 2% of the components are identified as defective, and the components can be assumed to be independent. a.

    asked by Anonymous
  154. Grammar

    Bring records to followup. A) complete sentence B) fragment C) run-on seems to me it would be B, but could be A too

    asked by Marie
  155. physics

    A motorcycle has a constant speed of 20.8 m/s as it passes over the top of a hill whose radius of curvature is 159 m. The mass of the motorcycle and driver is 387 kg. Find the magnitude of (a) the centripetal force and (b) the normal force that acts on the

    asked by ben
  156. Chemistry

    Write the symbol and electron configuration for each ion and name the noble gas with the same configuration. a. nitride _________________________ b. oxide ___________________________ c. sulfide _________________________ d. bromide _________________________

    asked by Greg
  157. Grammar

    He was started on hydration and IV antibiotics. A) complete sentence B) fragment C) run-on I answered this one A too

    asked by Marie
  158. 7th grade Ms. Sue help Pygorean Theoream asap quic

    3. A ladder is leaning against a house. The distance between the base of the ladder to the house is 3 feet. The length of the ladder is 10 feet. In feet, how far above the ground does the ladder touch the house? (1 point) 4.2 9.5 10.4 14.1 4. A wire is

    asked by Delilah
  159. Grammar

    The patient is to use medications as directed and to return to the emergency room if he continues to have diarrhea. A) complete sentence B) fragment C) run-on This to me looks like a complete sentence

    asked by Marie
  160. Grammar

    He was tender in the right upper quadrant. A) complete sentence B) fragment C) run-on Seems complete but I answered it b

    asked by Marie
  161. Grammar

    He was treated towards the end of December for upper respiratory infection with Robitussin with codeine cough syrup, he feels significantly better. A) complete sentence B) fragment C) run-on I say C

    asked by Marie
  162. Math

    Find the equation of a sine wave that is obtained by shifting the graph of y=sin(x) to the right 6 units and downward 6 units and is vertically stretched by a factor of 5 when compared to y=sin(x)

    asked by Anonymous
  163. math

    When items in a box are put in groups of 3 or 5 or 6, there is always 1 item left over. How many items are in the box if there are fewer than 50?

    asked by Christina
  164. Business Math

    Import exclusives Ltd. received an invoice dated June 28 from Dansk Specialties of Copenhagen with terms 5/20, n/45: 100 teak trays at $34.30 each; 25 teak ice buckets at $63.60 each; 40 teak salad bowls at $54.50 each. All items are subject to trade

    asked by Steph
  165. physics

    If a ferris wheel has the radius of 5 meters, and one revolution takes 32 seconds, what is its speed?

    asked by Sammi
  166. chemistry

    A home swimming pool is disinfected by the daily addition of 0.50 gal (1 gal = 3.785 L) of a "chlorine" solution–NaOCl in NaOH(aq). To maintain the proper acidity in the pool, the NaOH(aq) in the "chlorine" solution must be neutralized. By experiment it

    asked by joe
  167. math

    If a number is not a rational number, then it is _____.

    asked by Yoda
  168. Physics

    A 19 N thrust is exerted on a 0.4 kg rocket for a time interval of 8 s as it moves straight up. (Neglect all forces except this thrust and the force of gravity.) The rocket then continues to move upward as its speed reduces steadily to zero. (a) What is

    asked by arcos15
  169. chemistry

    what is the sum coefficient and balanced equation of : Co(OH)3+Na2CO3 my answer is 3Co(OH)3+ 3Na2CO3---> 3CoCO3+ 3Na2OH

    asked by lydia
  170. Last Question Physics.

    A diagram represents a 5 N force to the North and a 12 N force East acting on an object P of mass 6.5kg. -The Magnitude of the Net Force is 13 N - The direction it accelerates is 23 degrees North of East. FIND: (A) If the object has an intial speed of 8

    asked by arcos15
  171. Physics

    A baseball is hit at ground level. The ball reaches its maximum height above ground level 3.2 s after being hit. Then 2.7 s after reaching its maximum height, the ball barely clears a fence that is 81.0 m from where it was hit. Assume the ground is level.

    asked by Devin
  172. chemistry

    what is the pH of .10 M NH4CL?

    asked by hamed shirazi
  173. Language Arts

    Need some help on the sentence below. This is just what happened in 1989 to the fish, birds, and other animals that call Alaska their home. Would there be any commas around 1989? If so would it be before it, after it, or both? Thanks..

    asked by Brandi
  174. French

    How do i write the response in french please help 1) comment s'apple le project que les elves regardent sur l'ordinateur 2)on attrape un mauvais rhume a cause de quel microbe? 3)quel aliment peut nous rendre malades s'ill contient du bacillus cereus?

    asked by Please and Thankyou
  175. Algebra Grade 7

    the ratio of square H's length to square I's length is 3 : 5, if the length of square H is 18 meters, what is the perimeter of square I?

    asked by randomchik
  176. Physics

    A train at a constant 44.0 km/h moves east for 42 min, then in a direction 45.0° east of due north for 17.0 min, and then west for 51.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of

    asked by Devin
  177. English

    Word box: barrage bigot designate diversity enigma gloat global illusion infuriate motivate pacifist queue restrict sage slake terrain vocation vow waylay wither Since he greatly enjoys woodworking and also making a living from it, his hobby and his ____

    asked by Jerald
  178. 7th Grade x y input output tables

    i need help with x and y input output tables for 7th grade i don't understand what 5x means or what to do! Math hw problems: 1. y=4x+3 x=1,2,5,10,20 2.d=3.5t t=1,2,5,10,20 Please help ASAP!!!!!

    asked by Sadie
  179. Grammar

    She is a pleasant 18-year-old female who states that she was at a pub where she was eating and actually fell while holding a tray and rolled her ankle. A) complete sentence B) fragment C) run-on Seems to me to be a run-on because of all the ands..

    asked by Marie
  180. IMPERIALISM AND THE PROGRESSIVE ERA

    _______ pioneered the field of corporate public relations. A. Henry Ford B. Ivy. L. Lee C. Samuel Gompers D. Margaret Robins

    asked by Macy
  181. Domain and Range!

    What is the domain of the function f(x)=11/Square root of 4-x^2 What is the range of the function y=8/Square root of 4-x^2 Show your steps too.

    asked by Karlie
  182. Calculus

    Integrate the expression β = 1/V (δV / δT) at constant pressure, assuming that β is independent of temperature. By doing so, obtain an expression for V as a function of T and β at constant P.

    asked by Danielle
  183. math 8th grade

    I am unable to figure it out. Please help! the flow rate for several household ate shown in the table. based on this data. an eight min period.how much more water would a washinh machine deliver than a showerhead? table: bath spigot 5 ; kitchen faucet 2.5;

    asked by annalisa
  184. Physics

    a horizontal force of magnitude 18.0 N is applied to a 3.07 kg book as the book slides a distance d = 0.34 m up a frictionless ramp at angle è = 30°. The book begins with zero kinetic energy. What is its speed at the end of the displacement?

    asked by Emily
  185. Grammar

    I told him that I can find no sign of infection at this time, we will treat him with a decongestant. A) complete sentence B) fragment C) run-on Sounds like a complete sentence, but it could be a run-on that could be fixed with "and we will treat him"?

    asked by Marie
  186. Math

    Evaluate the expression. (1)1/3 divided by 1/6= 2 Answer (2)6 divided by 2/5= 15 Answer (3) 4/9 divided by 2/3 dividied by 5/6= Answer 4/5 (4) 7/8 mulitplied by 4/5 divided 7/20=Answer 2 Please help Ms. Sue

    asked by Cindy
  187. Chemistry

    Most of the matter in the universe is of which element? How and where do elements more complicated than this form? Is this correct? Helium; more elements are form in the sun by nuclear fusion.

    asked by Anonymous
  188. Math

    A room has dimensions 2.24 m (height) × 5.30 m × 6.55 m. A fly starting at one corner flies around, ending up at the diagonally opposite corner. (a) What is the magnitude of its displacement? (b) If the fly walks rather than flies, what is the length of

    asked by D
  189. Physics URGENT!!!

    An accelerometer in a control system consists of a 2.42 g object sliding on a horizontal rail. A low-mass spring is connected between the object and a flange at one end of the rail. Grease on the rail makes static friction negligible, but rapidly damps out

    asked by Anonymous
  190. Grammar

    The patient's father died at age 69 of an MI, the patient's mother died at age 67 of diabetes and apparently a related stroke. A) complete sentence B) fragment C) run-on I say it is c, especially with the mother part

    asked by Marie
  191. Math

    If the larger of two consecutive integers is subracted from twice the smaller integer, then the result is 21. Find the integers.

    asked by joyce
  192. math

    Chase spends 20 mins reading,30mins practicing Piano 15mins cleaning and 40 mins doing his Homework chase is busy for 105 mins what fraction of the time does he spend cleaning??

    asked by Anonymous
  193. Chemistry

    Compound A is added into a calorimeter that contains 0.750 litres of water. If the dissolution of 5.0 g of this compound causes the temperature of the water to rise to 45.0 °C, what is the enthalpy of solution of compound A?

    asked by Marlee
  194. math

    1. Determine the quadrant in which the terminal side of the angle is found and find the corresponding reference angle. theta = 4

    asked by Anonymous
  195. geometry

    PR~=QR, PQ=x+3, QR=x+6. The perimeter is 93. Find x and PR.

    asked by Anonymous
  196. geometry

    how to mentally find the coordinates of the midpoint of AD, given the endpoints A(4,-3) and D(-6,3).

    asked by Anonymous
  197. geometry

    on a number line, the midpoint is -2. Name to possible endpoints for the segment. How would this be found.

    asked by Anonymous
  198. physics

    A ball is thrown vertically upward with a speed of 24.7 m/s from a height of 2.0 m. How long does it take to reach its highest point? The acceleration of gravity is 9.81 m/s 2 . Answer in units of s

    asked by Anonymous
  199. Physics

    A cow pat was thrown 81.1m. Assuming the initial launch angle was 45 degrees, and neglecting air resistance, determine the total time the projectile was in flight. a) 4.83s b) 5.28s c) 4.07s d) 5.87s e) 4.35s

    asked by Cody
  200. algebra

    A family spends 20% of It's monthly income on food,23% on rent,and 42% on other expenses and saves the balance.if the family saves $360 per month,what is It's monthly income

    asked by charkeima
  201. physics

    A horizontal force of magnitude F = 176.0 N is used to push a box of mass m = 9.0 kg from rest a distance d = 15.0 m up a frictionless incline with a slope θ = 31.0°. 1) How much work is done by the force on the box? W F =

    asked by Anonymous
  202. stats

    A set of data is normally distributed with a mean of 200 and standard deviation of 50. • What would be the standard score for a score of 250? • What percentage of scores is between 200 and 250? • What would be the percentile rank for a score of 250?

    asked by Dawn
  203. physics

    The coefficient of kinetic friction between a suitcase and the floor is 0.29. If the suitcase has a mass of 76 kg, how far can it be pushed across the level floor with 710 J of work?

    asked by xp
  204. bookkeeping

    Using your computer, you create a file for an existing costumer. When you're finished, you should a. overwrite the existing file by giving the new file the same name. b. use Save as to save the new file under a different name c. coordinate the old and new

    asked by amanda
  205. Physics

    An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.16 105 m/s to a final velocity of +2.23 106 m/s while traveling a distance of

    asked by Donald
  206. Math

    The area of Egypt is about 386,700 square miles. The area of Wyoming is about 97, 818 square miles. How many times larger is Egypt than Wyoming? Do I multiply, divide or add?

    asked by Rita
  207. Physics

    A baseball is hit at ground level. The ball reaches its maximum height above ground level 3.2 s after being hit. Then 2.7 s after reaching its maximum height, the ball barely clears a fence that is 81.0 m from where it was hit. Assume the ground is level.

    asked by Devin
  208. english

    in sentece, what part os speech is from? The pistures fell from the table.

    asked by joseph
  209. Physics

    A trackstar in the long jump goes into the jump at 12 meters per second and launches herself at 20 degrees how long is she in the air

    asked by Jesse lively
  210. Language Arts

    I've got one more sentence I need help with. On the sentence, "Birds who tried to fish for food were covered with terrible black guck." Would there be a comma after Birds and after food..or would there be no commas in that sentence? Thanks...

    asked by Brandi
  211. history

    i really need help on this short answer question. Compare and Contrast the significance of the various reform movements in Europe AND Asia during the Early Modern Era. thank you!!

    asked by lauren
  212. something

    why wont me post anymore

    asked by jman
  213. Decimals to fractions

    0.60=3/5 0.015=3/200 0.05=1/200

    asked by Jerald
  214. 7th Grade x y input output tables

    I don't understand them please some one help me!!!!ASAP!!!

    asked by 7th Grade
  215. Synonyms

    i need some synonyms for example is the main word is sleep i need 2 or 3 synonyms for that some examples definitions and i need to make a sketch and then i need the samething again but with a different main word different synonyms, definitions, and some

    asked by Anonymous
  216. social studies

    in the mid-1990s,investers backed many ____ in hopes of making a huge profit.

    asked by tristan
  217. chemistry

    Assuming that the price of god is $11,000.00/Kg, What is the approximate $value of one mole of gold atoms?

    asked by tracy
  218. ethics & social responsibilities

    Assume that by burning coal extensively, the U. S. causes a substantial increase in pollution and acid rain, and Canada, understandably, objects. How might the U. S. and Canada resolve this dispute?

    asked by Anonymous
  219. Algebra

    Can someone explain how you could convert a repeating, nonterminating decimal to a fraction? Thanks. :)

    asked by HLD
  220. Science

    In the early 20th century, some scientists were reluctant to accept the conclusion that DNA could be the genetic material because it is so_________________.

    asked by Robert
  221. Math

    Just wanted to check over these.. "What is (–7)^5 in expanded form? –7 • –7 • –7 • –7 • –7 –7 • 5 (–7) • 7 • (–7) • 7 • –7 5 • 5 • 5 • 5 • 5 • 5 • 5" The answer is "–7 • –7 • –7 • –7 •

    asked by ._.
  222. Math

    Find (fog)(2) and (gof)(-2) f(x)=Square root of 4-x; g(x)=1-3x^2 Show work.

    asked by Madison
  223. Physics

    A 301-kg boat is sailing 16.5° north of east at a speed of 2.08 m/s. Thirty seconds later, it is sailing 37.2° north of east at a speed of 3.60 m/s. During this time, three forces act on the boat: a 32.7-N force directed 16.5° north of east (due to an

    asked by Anonymous
  224. physics

    A rocket is fired at a speed of 70.0 m/s from ground level, at an angle of 40.0 ° above the horizontal. The rocket is fired toward an 14.0-m high wall, which is located 21.0 m away. The rocket attains its launch speed in a negligibly short period of time,

    asked by cayla
  225. Math

    which fractions are less than 5/6? 2/5 1/12 25/40 10/20 8/9 how do i know which is greater or less?

    asked by angelica
  226. Math

    marcus buys a juice from a juice machine. the juice is a bargain at .35 cents. the machine only accepts nickles, dimes and quarters. Marcus decides that each day he will place a different combination of coins into the juice machine. How many days will

    asked by Larah
  227. chemistry

    which will make you wealthy one mole of pennies (6.02e23 pennies) or one mole of Au atoms(6.02e23 atoms)?

    asked by Shay
  228. World History

    Who did more to advance Russian rule during the rise of Russia? the Byzantine, the mongols, Ivan the great, or Ivan the terrible. and WHY?

    asked by Brent
  229. math

    how do I use multiplication and the Distributive property to find the quotient of 108/6

    asked by Katrina
  230. College US History

    Why did Americans demand written constitutions to define and protect rights?

    asked by Ken
  231. Math

    Can someone help me with this math problem? 14 divided by 2 1/3

    asked by Jose
  232. Science

    If 1/10 of 1 percent of the population gets a flu vaccine what will the ratio of people treated be?

    asked by Anthony
  233. Grammar

    After a laparoscopic procedure was unsuccessful. A) complete sentence B) fragment C) run-on Sounds like a fragment, explains very little that would be my best answer.

    asked by Marie
  234. Chemistry

    What mass (g) of KHP is required to neutralize 10.00 mL of 0.1092 M NaOH?

    asked by Erin
  235. World History

    Who did more to advance Russian rule during the rise of Russia? the Byzantine, the mongols, Ivan the great, or Ivan the terrible.

    asked by Brent
  236. Physics

    Two transparent media F and G are separated by a plane boundary. The speed of light in medium F is 2.0x108 m/sec and in medium G is 2.5x108 m/sec. The critical angle for which a ray of light from F to G is totally internally reflected is

    asked by Judish
  237. math (calculus)

    A room has dimensions 2.24 m (height) × 5.30 m × 6.55 m. A fly starting at one corner flies around, ending up at the diagonally opposite corner. (a) What is the magnitude of its displacement? (b) If the fly walks rather than flies, what is the length of

    asked by D
  238. English Analysis

    Reading The Stranger by the lovely Albert Camus. Just need help understanding this question: -After I listed some themes I explored, my teacher asks: "Given the themes you listed, are any conventions questioned based on the treatment of a given theme?

    asked by Albert
  239. Chemistry

    Most of the earth is made of what? Is it helium?

    asked by Anonymous
  240. exceptional children

    need help with this ? good teaching practices for exceptional children: a.stress typical development b.only occur in inclusive setting c.understand the connection between behavior and development. c.only occur in special settings. i said c. would that

    asked by tonia
  241. Chemistry

    A gas is allowed to expand at constant temperature from a volume of 2.00 L to 11.20 L against an external pressure of 1.500 atm. If the gas loses 256 J of heat to the surroundings, what are the values of q, w, and ΔU? Pay careful attention to units.

    asked by Syed
  242. physics

    how can we collect sound energy from outside? then it can be converted into electricity with the help of transducer. Have to prepare a model on this. Please earlier.

    asked by edward
  243. physics

    ignoring air resistance, describe how an object would fall to the ground using the words velocity and acceleration for a ball that is thrown straight up: a.) the velocity is __on the way up (increasing, decreasing, constant, zero) b.)the velocity is __at

    asked by Anita
  244. Grammar

    It was hard/firm, nonreducible, there were no bowel sounds within the hernia. A) complete sentence B) fragment C) run-on It does sound like it could be A, but at the same time it sounds like a fragment

    asked by Marie
  245. aglebra

    7 x+16-9x=18-13 x+11 x-2

    asked by ashley
  246. Math 4th grade

    How do you find the properties of addition?

    asked by Penny
  247. Chemistry

    Compound A is added into a calorimeter that contains 0.750 litres of water. If the dissolution of 5.0 g of this compound causes the temperature of the water to rise to 45.0 °C, what is the enthalpy of solution of compound A?

    asked by Marlee
  248. Honors Algebra 2

    How do you simplify terms like 3z^2 x 2z^3?

    asked by Emily
  249. math

    Find the slope m and an equation of the tangent line to the graph of the function f at the specified point. f(x)=x^2/x+4 ; (3,9/7)

    asked by beauty
  250. geometry

    DF = 3x + 1, DE = EFm = x +5. The perimeter is 31. Find x, DE and DF.

    asked by Anonymous
  251. Science

    How do fruit seeds help fertilize plants and help them grow?

    asked by Monica
  252. Science

    Large deposits of salt get into lakes in Utah due to what?

    asked by Jerry
  253. Geometry

    DF=3x+1, DE~=EF, DE=x+5. The perimeter is 31. Find x, DE, and DF.

    asked by Anonymous
  254. IMPERIALISM AND THE PROGRESSIVE ERA

    _______ pioneered the field of corporate public relations. A. Henry Ford B. Ivy. L. Lee C. Samuel Gompers D. Margaret Robins

    asked by Macy
  255. Geometry

    BE~=RT. Find x, BT, RT, and the perimeter.

    asked by Anonymous
  256. Science

    What does sleep do for the body?

    asked by Jerry
  257. Biology

    A bacterium that synthesizes an enzyme that neutralizes an environment toxin would probably use a(n) _____________ operon to regulate production of the enzyme.

    asked by Robert
  258. Geometry

    y=-7x+3 Is It Vertical , Horizontal , Or Oblique ?

    asked by MayMay
  259. Chemistry lab

    What mass of NaOH is required to prepare 500.0 mL of 0.1029 M stock solution?

    asked by Donnie
  260. Math

    A number divided by 14 is 6. Find the number. Use a let statement. Write the equation. Let x = number divided so X= 14/6 X= 2.33

    asked by Meagieting
  261. math

    how i calculate this equation 32/14*6+40-8

    asked by navi
  262. Geometry

    PE~=PM, y=5x+5. Find the perimeter of the figure.

    asked by Anonymous
  263. Geometry

    AB~=DC and AD~=BC. Find the perimeter of the figure.

    asked by Anonymous
  264. Physical Science

    A strong magnet attracts a paper cup to itself with a certain force. Does the paper cup exert a force on the strong magnet?

    asked by Anonymous
  265. Decimals to Fractions(simplify the fractions)

    0.2=1/5? 0.9=9/10 0.80=4/5? 0.55=11/20

    asked by Jerald
  266. physics

    A ball is thrown vertically upward with a speed of 24.7 m/s from a height of 2.0 m. How long does it take to reach its highest point? The acceleration of gravity is 9.81 m/s 2 . Answer in units of s

    asked by Anonymous
  267. Math- Please Help Us!

    Diagram has 4 rectangular corrals with a barn above it. Sides (front to back) are attached to the barn. Fencing is not needed along the back of the barn. P= 200 ft of fencing If each corral is 16 ft long (front to back), how wide will each corral be, what

    asked by Cole n Cynthia
  268. Chemistry

    Why do beryllium and flouine combine in a 1:2 ratio?

    asked by Greg
  269. physics

    A 1720-kg car is traveling with a speed of 15.0 m/s. What is the magnitude of the horizontal net force that is required to bring the car to a halt in a distance of 47.0 m?

    asked by Donald
  270. english

    What makes citing and referencing electronic sources difficult? What can one do to ensure one has done so correctly?

    asked by long
  271. Trig help?

    are these functions periodic? i - y=abs(sin(x)) = sin(x) ii - y=cos(X^2) iii - y = cos(sin(x)) I am completely lost on these :/

    asked by Josh
  272. 4th grade math

    I am a 2 digit number. You can divide me by every single digit except for 5 and 7. Add my digits together and the sum is 9. What number am I?

    asked by Riley
  273. Chemistry

    What is the coordination number of the ions in a face-centered cubic crystal? In a simple cubic crystal?

    asked by Greg
  274. Live Tutoring

    Does anyone know where I can get inexpensive online tutoring that will not cost me $30.00/hr?

    asked by Josh
  275. math

    What is the largest odd number with a 9 in the 10 millions place

    asked by brody
  276. expanded algorithm

    7x14= 3x52=

    asked by Anonymous
  277. Calculus

    Find the derivatives of the function f(y)= sinh(sinh(7y).

    asked by Jake
  278. Science 8R

    What is matter? (I LOOKED in my textbook it's not there and plus I forgot what it was)

    asked by Laruen
  279. chemistry

    What is the sum coefficient and balanced equation of: Fe(CN)3+H2S--->

    asked by bertshie
  280. pre-calculus

    write the expression as a simple logarithm. express powers. In(x/x-5)+In(x+5/x)-In(x^2-25)

    asked by ladybug
  281. Physics

    Two students are on a balcony 24.3 m above the street. One student throws a ball, b1, vertically downward at 15.8 m/s. At the same instant, the other student throws a ball, b2, vertically upward at the same speed. The second ball just misses the balcony on

    asked by Mel
  282. Physical Science

    How much heat in joules is needed to raise the temperature of 5.5 L of water from 0 degrees Celsius to 78 degrees Celsius?

    asked by Patrick
  283. Physics

    A satellite has a mass of 5381 kg and is in a circular orbit 4.30 105 m above the surface of a planet. The period of the orbit is 2.06 hours. The radius of the planet is 4.09 106 m. What would be the true weight of the satellite if it were at rest on the

    asked by Ben
  284. math

    ms.brown has a piece of rope that is 5 3/4 feet long. she cuts off a lenght that is 1 7/8 feet long what is the best estimate of the lenght of rope that is left?

    asked by dee dee
  285. pre-cal

    use the properties of logarithms to condense the logarithmic expression. write the expression as a single logiarithm whose coefficient is 1. 2IN(x+3)-3INx

    asked by ladybug
  286. exceptioal children

    assesment for young children: a.means gathering and recording info. b.is the same thing as screening c.same as testing d.is never appropriate i think it would be a

    asked by tonia
  287. trig

    Find the following values for each function a. f(0) b. f(-1) c. f(-x) d. f(x+1) f(x)=2x^2+3x-4 I you plug in the value for each x, I just want to check my answers. Thanks.

    asked by Madison
  288. MATH

    15 PERCENT OF EIGHTY DOLLARS WILL BE TWELVE DOLLARS. SIMPLE WAY WOULD BE TO TAKE TEN PERCENT OF 80 IS 8 DOLLARS AND TAKE HAVE OF EIGHT COMES UP TO 4 THEN ADD 8 PLUS 4 WITH 12 BEING THE ANSWER. SUPPLY A SIMPLE WAY

    asked by booker
  289. Trigonometry

    Find the domain of the function. Write your answer using infinity and union. f(x)=x/x^2+1 f(x)=2x^2/x-3

    asked by Carrie
  290. trig

    Find the domain of each function. f(x)=Sqareroot of 5-x f(x)=x^3/x^2-16

    asked by Natasha
  291. Physics- PLEASE HELP

    An accelerometer in a control system consists of a 2.42 g object sliding on a horizontal rail. A low-mass spring is connected between the object and a flange at one end of the rail. Grease on the rail makes static friction negligible, but rapidly damps out

    asked by Anonymous
  292. Trig.

    I'm trouble solving for theta. Any help is appreciated. 0.73377324 = sin(theta)/cos(theta)

    asked by James
  293. physics

    A rocket is fired at a speed of 70.0 m/s from ground level, at an angle of 40.0 ° above the horizontal. The rocket is fired toward an 14.0-m high wall, which is located 21.0 m away. The rocket attains its launch speed in a negligibly short period of time,

    asked by Anonymous
  294. english

    in sentence, what part of speech is diplomacy? Diplomacy is the best article.

    asked by joseph
  295. Reiny!!!! math help

    We understand how to do the questions now and we are really glad n thankful, but the graphing portion of it is confusing. Continuation of the function. The teacher wants us to plot the points from the different parts of the questions we answered and with

    asked by Cole n Cynthia
  296. Algebra

    (3/10)x-3=6

    asked by Stephanie
  297. math

    What is the domain of the function f(x)=11/Squareroot of 4-x^2 a.(-11,11) b.[-11,11] c. (-2,2) d. [-2,2] What is the range of the function? y=8/Squareroot of 4-x^2 a. [4, infinity) b. (-infinity, 4] c. [8, infinity) d. (-infinity, 12] e. [6, infinity) f.

    asked by Laurie
  298. Grammar

    It seems to be worse when he plays golf, it does not bother him when he bowls. A) complete sentence B) fragment C) run-on It sounds like a fragment but yet a run on

    asked by Marie
  299. math

    Find (gof)(-2) f(x)=Squareroot of 4-x; g(x)=1-3x^2

    asked by Laurie
  300. Maths

    in sequence 4,7,10,13.... PROVE the difference between squared of any two terms is a multiple of 3

    asked by Bap
  301. math

    Find a. fog b. gof c. fof d. gog f(x)=4-x g(x)=3x-5

    asked by Bailey
  302. pre-cal

    change the exponential expression to an equivalent expression involving a logarithm. 4.1=a^2

    asked by ladybug
  303. Math

    Please refresh my memory! How do you solve 5x - 3/2x? Thank you!

    asked by Erin :)
  304. Finance

    "annual raises must average 4% per department among 6 team members. No team member can get exactly 4%, and the raise must be at least 2% and no more than 6%." How do I start this?

    asked by Barbara
  305. Physics

    A batter hits a pitched ball when the center of the ball is 1.35 m above the ground.The ball leaves the bat at an angle of 45° with the ground. With that launch, the ball should have a horizontal range (returning to the launch level) of 106 m. (a) Does

    asked by Devin
  306. Algebra 2

    Write the standard form of the equation of the line through the given point with the given slope. Through point: (1,2) slope=7

    asked by SoccerStar
  307. Physics

    A train at a constant 44.0 km/h moves east for 42 min, then in a direction 45.0° east of due north for 17.0 min, and then west for 51.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of

    asked by D
  308. math

    write an.algebraic equation for autumn has,1 brother. this is 3 less than the number of brothers chase has,b

    asked by jenny
  309. Physics - repost

    A satellite has a mass of 5381 kg and is in a circular orbit 4.30 105 m above the surface of a planet. The period of the orbit is 2.06 hours. The radius of the planet is 4.09 106 m. What would be the true weight of the satellite if it were at rest on the

    asked by Ben
  310. exceptional children

    appropriate social skills in young children:A.are aquired over time. b.are easily taught. c.cannot be taught. or c.arenot influenced by a childs temerament.

    asked by tonia
  311. Algebra Grade 7

    parallelograms small parallelogram 22 cm ?? (find this number) big parallelogram 16 cm 32 cm What is the missing number and how can I find it?

    asked by randomchik
  312. Physics

    What is the speed of a hockey puck of mass 0.15 kg if it experiences a force 60 in N for the extent of a slap shot of 0.25 m?

    asked by Sulu
  313. science

    Is venus the 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th or 9th smallest planet? Also is it the 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th or 9th largest planet?

    asked by Yog
  314. Maria

    How did political events in Engand change colonial rights?

    asked by History
  315. science

    What is the planet venus best known for?

    asked by Slippy
  316. Math

    Find the derivatives of the function g(t)= cosh^3 t.

    asked by Joe
  317. Algebra

    What is the inverse of y = (3/7)x + 9 I know you have to switch x and y so I get to x-9=(3/7)y from there I don't know what to do.

    asked by Phil
  318. Problem

    I was wondering why after you post a lot of questions it wont let u post any more plz help.

    asked by jman
  319. English

    Identify the subject and the verb in the sentences below. 1. There were a large saguaro cactus and a barrel cactus visible from our room. 2. There goes the tree specialist to fertilize our neighbor's Japanese maple. 3. Bright is her smile, but heavy is her

    asked by DaKosha
  320. Science

    We have to build a catapult that can launch a marshmallow at least 10 feet. Can anyone give me any ideas?

    asked by Lance
  321. math

    The second of two numbers is 6 times the first. Their sum is 77. Find the numbers.

    asked by Daniela
  322. Chemistry

    Which of these methods is a better representation of the error in a chemical experiment: propagation of error or standard deviation and why? I think it would be standard deviation

    asked by Cristian
  323. science

    Why does air move in the atmosphere/why is there wind?

    asked by SoccerStar
  324. Math

    (2.0)t^2/2 = (9.5)t t=????

    asked by D
  325. something

    I am doing it on my phone. It wont let me do it on my computer

    asked by jman
  326. Physics

    When a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the sky diver and, thus, slows him down. Suppose the weight of the sky diver is 914 N and the drag force has a magnitude of 1120 N.

    asked by Anonymous
  327. Physics

    When I look into my beautiful 1981 Vanagon's rear view mirror, I see a semi-truck coming toward me way too fast. The truck has lost its brakes and is traveling at 140 km/hour down the steep mountain road we're on. At the last second, the truck exits onto

    asked by Dianne
  328. Science

    How many grams of ammonium nitrate is equivalent to 1 gram of calcium nitrate

    asked by Bob
  329. Grammar

    We will teach him to take a pulse today, and he will record his fast pulse rates and when this occurs and what he is doing. a. complete sentence b. fragment c. run-on

    asked by Marie
  330. Math Help

    A driver drove at a speed of s mph for 4 hours. How far did the driver go? What is the algebraic expression?

    asked by Anonymous
  331. For ms sue

    i am doing this on my phone not computer plz do you any way to fix it. I am a member

    asked by jman
  332. Algebra 1

    What is the slope, m, of the line that contains the points (-12, 16), (-3, 4) and (6,-8)?

    asked by HELPP!!!
  333. Social Studies 8R - help!!!

    How did the establishment of reservations affected the Native Americans?

    asked by Laruen
  334. Math,statistics

    The sum of 16 reciprocals (1 over the number) is found to equal 4. What is the harmonic mean of the original (i.e., non-reciprocated) scores?

    asked by Tanya
  335. Science 8R

    How do you determine the volume of an irregular solid?

    asked by Laruen
  336. Math

    The mean of 40 scores is found to be -29. If each score had 5 added to it, and then divided by -4, what would the mean of these new scores be?

    asked by stacy
  337. Math

    The mean of 40 scores is found to be -29. If each score had 5 added to it, and then divided by -4, what would the mean of these new scores be?

    asked by stacy
  338. Math

    The mean of 40 scores is found to be -29. If each score had 5 added to it, and then divided by -4, what would the mean of these new scores be?

    asked by stacy
  339. Math,statistics

    The sum of 16 reciprocals (1 over the number) is found to equal 4. What is the harmonic mean of the original (i.e., non-reciprocated) scores?

    asked by Tanya
  340. Trigonometry help please!

    Assume that height is a function of age and that H=f(a) is the average height (in inches) for females in the US at age (a) years. What is the practical interpretation of f(z)+20? a. 20 years older than the average US female who is z inches tall b. 20

    asked by Lauren
  341. science

    Is venus the 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th or 9th smallest planet?

    asked by Slippy
  342. Physics

    A 2 kg block is pulled from rest along a horizontal surface by a rope with a force of 16 N. It experiences a constant frictional force of 3 N. How far has the block moved in the first five seconds?

    asked by arcos15
  343. Grammar

    An example would be. This one is harder to tell A) complete sentence B) fragment C) run-on I want to say it is b a fragment..

    asked by Marie
  344. Trig!

    Find the following values for each function. A. f(0) B. f(-1) C. f(-x) D. f(x+1) f(x)=2x^2+3x-4 and f(x)=x^2/x+1

    asked by Ashley
  345. something

    i didn't do any thing all i did was change names a lot

    asked by jman
  346. Trigonometry

    Find the domain of each function. And show your steps please. f(x)=x/x^2+1 f(x)=2x^2/x-3 f(x)=Square root of 5-x f(x)=x^3/x^2-16

    asked by Karen
  347. Math

    Find the domain and range of the function. f(x)=x-1 -3

    asked by Abby
  348. Chemistry

    Integrate the expression β = 1/V (δV / δT) at constant pressure, assuming that β is independent of temperature. By doing so, obtain an expression for V as a function of T and β at constant P.

    asked by Sarah
  349. college physics

    air flows through a main duct at a mass flow rate of 4kg/s the main duct enters a junction that splits into two branch ducts one with a cross section of 20cm x 30cm and one with a cross section og 40cm x 60cm if the mass flow rate in the large branch is

    asked by yaritza
  350. social studies

    Which city is northwest of Salt Lake City?

    asked by jaazaniah
  351. Math

    In a right triangle, the middle angle is 12 more than twice the smallest angle. What are the measures of the smallest and middle angles?

    asked by Jaime
  352. math 4

    i am number less than 10. my hundredths digit is 3 more than my thousandths digits.my tenths digit is less than hundredths and my ones is the sum of my tenths and hundreds digit. what number can i be?

    asked by yulai
  353. Grammar

    She states that she has developed aches and pains and feels very tired and is not able to walk, she also suffers from muscle cramps. A) complete sentence B) fragment C) run-on See I would say this reminds me of a comma splice but also a run-on. So I say c

    asked by Marie
  354. Math

    which fractions are less than 5/6? 2/5 1/12 25/40 10/20 8/9 how do i know which is greater or less?

    asked by angelica
  355. Science 8R - Volume Lab

    I doing this lab for my science class about volume. In class today I collected my data. I measure the regular solid (LxWxH) and as for the irregular solid I use water displacement by putting the irregular solid (that is small) in the graduated cylinder

    asked by Laruen
  356. Math

    Need help with this one...The formula for finding BMI is (w+705)/h over h. where h is height in inches and w is weight in lbs. What is the BMI for a student wh is 5 ft tall and 100 lbs? When I try doing it I'm getting a long decimal number so I'm thinking

    asked by Brandi
  357. Math

    Mark has a 40 foot length of rope he decides tocut it into two pieces. He wants one length four times as long as the other. How long is each piece?

    asked by Anonymous
  358. Physics

    A crate of unknown mass is pulled upward by a rope. The tension in the rope is 11 N and the crate accelerates upward at a rate of 1.3 m/s2. Determine the mass of the crate. _________kg

    asked by arcos15
  359. Math

    If a man is 4ft and cast a 3ft shadow how long of a shadow would an 18ft flagpole cast?

    asked by Anthony
  360. pre-calculus

    Change the logarithmic expression to an equivalent expression involving an exponent. Log7343=x the 7 should drop down lower than the 343.

    asked by ladybug
  361. chemistry

    invent a term to describe a certain number of something you use that isn't already being used. Define and explain

    asked by tracy
  362. Chemistry

    What mass of NaOH is required to prepare 500.0 mL of 0.1029 M stock solution?

    asked by Erin
  363. math

    use Distributive property to solve equation 9(b-4)=27

    asked by linda
  364. Physics

    A solenoid with a nickel core has 1000 turns on 0.5 m. The cross-sectional area of turn is 50 cm2. What is the magnetic field energy when a current 10 A passes through it ? Given permeability of nickel is 200.

    asked by Judish
  365. Physics

    If the circle and square have the same area, then magnetizing force at the center of the coil as a result of current flowing through the coil will be in the ratio

    asked by Judish
  366. Art

    If a painter paints 8 different pictures to get a better perspective and then only selects 1 picture to illustrate her mood: what would this be called?

    asked by Marcus