Most popular questions and responses by Tyler
  1. Math

    Jacob mixes the letters J,K,L,J,K,M,N and P throughly. Without looking Terry draws one letter. Expressed as a fraction, decimal and percentage what is the probability the K will NOT be the letter terry selects A. 1/4,0.25,25% B.3/4,0.75,75% C. 4/3,1.33%,

    asked on May 18, 2016
  2. math

    How does a Hawaiian Baritone laugh?

    asked on October 27, 2010
  3. physics

    An apple crate with a weight of 225 N accelerates along a frictionless surface as the crate is pulled with a force of 14.5 N as shown in the drawing. What is the horizontal acceleration of the crate?

    asked on January 8, 2017
  4. Physics

    The passengers in a roller coaster car feel 50% heavier than their true weight as the car goes through a dip with a 20 m radius of curvature. What is the car's speed at the bottom of the dip?

    asked on October 27, 2010
  5. physics

    A 1450-kg submarine rises straight up towards the surface. Seawater exerts both an upward buoyant force of 16890 N on the submarine, as well as a downward resistive force of 1010 N. What is the submarine's acceleration?

    asked on January 11, 2017
  6. physics

    A centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. Such a device is used in medical laboratories, for instance, to cause the more dense red blood cells to settle through the less dense blood serum

    asked on January 26, 2017
  7. English check answers please!!

    "The King of Mazy May" by Jack London Which detail helps you predict that Walt will face a series of unfortunate events? a) Lifting clear on the crest of a great jam off Indian River, Walt masters met with his first accident b) The poor brute plunged in a

    asked on October 4, 2014

    A concert loudspeaker suspended high off the ground emits 35 W of sound power. A small microphone with a 1.0 cm2 area is 50 m from the speaker. (a) What is the sound intensity at the position of the microphone? (b) How much sound energy impinges on the

    asked on February 25, 2010
  9. Physics

    A car accelerates from 12m/s to 25m/s in 6.0s. What is its uniform acceleration? How far did it travel in this time?

    asked on February 11, 2014
  10. physics

    Accomplished silver workers in India can pound silver into incredibly thin sheets, as thin as 3.00 x 10-7 m (about one hundredth of the thickness of a sheet of paper). Find the area of such a sheet that can be formed from 3.70 kg of silver.

    asked on February 7, 2017
  11. ACT

    Hi I completed ACT Form Z15 and I have looked everywhere and couldn’t find the answer key I was wondering if you could help me if I send pictures or maybe you guys have the answer key. Any help would be appreciated, Thanks!

    asked on April 23, 2019
  12. English

    which is narrative element is described as a short truth theme ,conflict ,or resolution i think theme Am i right plz help thxs

    asked on September 29, 2019
  13. physics

    The drawing shows three objects rotating about a vertical axis. The mass of each object is given in terms of m0, and its perpendicular distance from the axis is specified in terms of r0. Rank the three objects according to their moments of inertia, largest

    asked on February 3, 2017
  14. Chemistry

    Dinitrogen tetroxide decomposes to nitrogen dioxide: N2O4 (g) ---> 2NO2 (g) Delta H rxn: 55.3 kJ At 298 K a reaction vessel initially containing .100 atm of N2O4. When equilibrium is reached, 58% of the N2O4 has decomposed to NO2. -What percentage of N2O4

    asked on July 18, 2011
  15. science

    When scientists use one of their five senses to gather information, they are?

    asked on January 8, 2013
  16. physics

    There is a clever kitchen gadget for drying lettuce leaves after you wash them. It consists of a cylindrical container mounted so that it can be rotated about its axis by turning a hand crank. The outer wall of the cylinder is perforated with small holes.

    asked on January 26, 2017
  17. chm

    An aqueous solution that is 10.0 percent sulfuric acid (H2SO4) by mass has a density of 1.143 g/mL. Determine the molality of the solution. ( 3 significant figures)

    asked on February 3, 2015
  18. Math

    Paula knits hats. The number of hats h she can knit varies directly with the amount of yarn (y) in yards she has. The constant of proportionality is 42. Write an equation to represent the relationship between the number of yards of yarn Paula has and the

    asked on September 11, 2019
  19. finite math

    Okay,so: Assume that there are 8 unfilled roles: 3 male and 5 female. There are 5 men and 6 women, including Sally, auditioning for a part in the play. How many of these casts include Sally?

    asked on September 5, 2012
  20. physics

    The table that follows lists four pairs of initial and final angles of a wheel on a moving car. The elapsed time for each pair of angles is 1.5 s. For each of the four pairs, determine the average angular velocity (magnitude and direction as given by the

    asked on February 1, 2017
  21. sociology

    Micah is studying child behavior in playgrounds throughout the world. He wants to see how the children react when teachers select the same child to be the first to use each piece of equipment. Which approach is Micah is using?

    asked on October 8, 2014
  22. math

    The circumference of a circular garden is 65.94 feet. What is the diameter of the garden? Use 13.4 for and do not round your answer.

    asked on April 11, 2019
  23. English

    What is the significance of the repetition of the word absurd in the play?

    asked on January 22, 2013
  24. English

    Early Inklings Short Essay by John Updike. The title, “Early Inklings” is an example of a pun (a witty play on words that suggest a double meaning) . Explain the pun and the meaning of the title. I don't even know where to start... Also, How

    asked on January 28, 2011
  25. Algebra 2

    What is the relative maximum and minimum of the function? f(x) = 2x^3 + x^2 -11x A - The realative maximum is at (-1.53,8.3) and the realative minimum is at (1.2,-12.01) B - The realative maximum is at (-1.53,12.01)and the realative minimum is at (1.2,

    asked on January 25, 2017
  26. physics

    The earth spins on its axis once a day and orbits the sun once a year (365 1/4 days). Determine the average angular velocity (in rad/s) of the earth as it (a) spins on its axis and (b) orbits the sun. In each case, take the positive direction for the

    asked on February 1, 2017
  27. math

    At a festival, 2/7 of the number of girls was equal to 3/5 of the number of boys. There were 165 fewer boys than girls. How many children were at the festival in all?

    asked on January 1, 2013
  28. math

    Madison spent 5/8 of her savings on a microwave oven & a refrigerator. She used 4/7 of the amount she spent to buy the refrigerator. The refrigerator cost $280 more than the microwave oven. How much savings did Madison start with?

    asked on January 1, 2013
  29. Physics

    A photocell shows photoelectric effect when green light shines on it. Which of the following is correct if a green light is replaced by a blue light? Electron emission would get stopped. Electrons are emitted with more velocity. Electrons are emitted with

    asked on October 24, 2012
  30. Math

    Use the function rule to complete the table. -10x + y = 4 X -2 -1 0 1 2 Y * * * * *

    asked on March 9, 2016
  31. enlish/grammar

    I was wondering if these sentences are labeled right with either predicate noun or predicate adjective? Their presence was necessary in the far north country in the early days. preicate noun Now they are famous throughout the world. predicate noun They are

    asked on November 7, 2011
  32. physics

    1) A boy sledding down a hill accelerates at 1.40 m/s, If he started at rest, in what distance would he reach a speed of 7.00 m/s? 2) An Elevator is moving upward at 1.20 m/s when it experiences an accelerstion of 0.31 m/s downward, over a distance of

    asked on September 24, 2012
  33. Calculus

    Use geometry to evaluate the integral from negative 3 to 3 of f of x, dx for f of x equals the square root of the quantity 4 minus the square of the quantity x plus 1 for x is between negative 3 and 1 including negative 3 and 1, and equals the absolute

    asked on March 5, 2017
  34. Math

    32,48,72,108...Arithmetic or geometric I think it is arithmetic Then Find common difference or ratio multiple of 12? What are the next 3 terms 120,132,144 What is the "zero" term 12 not sure what this means though What is the equation? 12n * n

    asked on February 9, 2016
  35. math

    sam cut a pie into equal slices. there are only 3 slices left. the angle measures for the three slices is 72 degrees. how many slices did sam cut the pie into?

    asked on January 7, 2013
  36. Geometry

    Hi, I'm having a difficult time understanding a couple of Geometry questions on my homework and I'd really appreciate it if someone could answer them and explain to me how to get the same answer. Question 1: A regular pentagon has an apothem of 3.2 m and

    asked on March 15, 2012
  37. Chemistry

    1. Pentane gas (C5H12) combusts with oxygen gas (O2) to form water (H2O) and carbon dioxide (CO2). Write a balanced chemical equation for this reaction and explain the scientific principle (statement) that requires the balancing of an equation to make it

    asked on January 15, 2013
  38. algebra

    in the diagram below, what is the relationship between the number of rectangles and the perimeter of the figure they form?

    asked on November 1, 2018
  39. Math

    A company paid ​$150,000 for a new​ 18-wheeler. When it is 9 years old it will be worth ​$42,000. Using​ straight-line depreciation, the value of the truck in​ dollars, V, is a linear function of its age in​ years, n. Find the function and the

    asked on March 14, 2019
  40. science

    an animal without a backbone is called a? an animal with a backbone is called a?

    asked on January 14, 2008
  41. Health

    A respiratory disorder in which the bronchi become inflamed and thick mucus in produced is called Asthma** Bronchitis Cancer Addiction Let me know if I'm right or wrong. Thanks

    asked on March 11, 2016
  42. physics

    Three forces act on a moving object. One force has a magnitude of 76.5 N and is directed due north. Another has a magnitude of 46.3 N and is directed due west. What must be (a) the magnitude and (b) the direction of the third force, such that the

    asked on January 11, 2017
  43. Equilibrium

    An equilibrium mixture at 852 K is found to contain 3.61*10^-3 mol/L of SO2, 6.11*10^-4 mol/L of O2, and 1.01*10^-2 mol/L of SO3. Calculate the equilibrium constant Keq, for the reaction where SO2 and O2 are reactants and SO3 is the product. Equation would

    asked on August 3, 2015
  44. Physics

    Three identical conducting spheres initially have the following charges: sphere A, 4Q; sphere B, -9Q; and sphere C, 0. Spheres A and B are fixed in place, with a center-to-center separation that is much larger than the spheres. Two experiments are

    asked on January 29, 2012
  45. Chemistry ASAP

    Using a table of standard electrode potentials (such as the one in your textbook), calculate the standard cell potential for a cell made by placing a zinc electrode in a Zn2+(aq) solution which is connected by an electrolyte to a Ag+ (aq) solution

    asked on May 13, 2014
  46. Chemistry

    Assuming that the specific heat of the solution is 4.18 J/(g⋅∘C) and that the calorimeter itself absorbs a negligible amount of heat, calculate ΔH in kilojoules for the reaction CaO(s)+H2O(l)→Ca(OH)2(aq) When 1.045 g of CaO is added to 50.0 mL of

    asked on April 20, 2014
  47. physics

    Two arrows are fired simultaneously with the same speed of 30.0 m/s. Each arrow has a mass of 0.100 kg. One is fired due east and the other due south. What is the magnitude of the total momentum of this two-arrow system?

    asked on January 17, 2017
  48. physics

    The drawing shows three particles that are moving with different velocities. Two of the particles have mass m, and the third has a mass 2m. The third particle has a velocity of v3 = +5.1 m/s. At the instant shown, the center of mass (cm) of the three

    asked on January 19, 2017
  49. Heath

    Shortly after quitting a smoker will A. Develop shortness in breath B. Regain their senses of smell and taste C. Lose circulation in their hands and feet D. Develop rapid Heart beats**

    asked on March 14, 2016
  50. physics

    A high-jumper, having just cleared the bar, lands on an air mattress and comes to rest. Had she landed directly on the hard ground, her stopping time would have been much shorter. Using the impulse-momentum theorem as your guide, determine which one of the

    asked on January 17, 2017
  51. Calc

    Oscar Corporation is planning to construct an elliptical gate at its headquarters. The width of the ellipse will be 5 feet across and its maximum height along the center will be 3 feet. The company wants to place two bright spots at the foci of the

    asked on May 1, 2013
  52. History

    The first task here is to trace furrows, ripping up the maze of paths, and then excavate a deep trench in the ground. The second comprises refilling the trench with other material to make a foundation for the road build-up. The ground must not give way nor

    asked on September 17, 2019
  53. Calculus

    The demand function for a product is modeled by : p=10,000(1-(3/3+e^-0.001x) Find the price of the product if the quantity demanded is (a) x=1000 units and (b) x=1500 units. What is the limit of the price as x increases without bound?

    asked on November 7, 2010
  54. physics

    The drawing illustrates an overhead view of a door and its axis of rotation. The axis is perpendicular to the screen. There are four forces acting on the door, and they have the same magnitude. Rank the torque τ that each force produces, largest to

    asked on February 1, 2017
  55. Chemistry

    An unknown gas is placed in a 1.500 L bulb at a pressure of 356 mm Hg and a temperature of 22.5 ∘C, and is found to weigh 0.8108g .What is the molecular mass of the gas?

    asked on April 27, 2014

    If EF=3x-10, FG=2x-15 and EG=20, find the value of x, EF and FG.

    asked on February 20, 2012
  57. physics

    In a science fiction novel two enemies, Bonzo and Ender, are fighting in outer spce. From stationary positions, they push against each other. Bonzo flies off with a velocity of +1.7 m/s, while Ender recoils with a velocity of -3.3 m/s. Determine the

    asked on January 17, 2017
  58. Statistics

    Random samples of size n = 90 were selected from a binomial population with p = 0.4. Use the normal distribution to approximate the following probabilities. (Round your answers to four decimal places.) (a) P(p̂ ≤ 0.49) = (b) P(0.37 ≤ p̂ ≤ 0.49) =

    asked on November 3, 2014

    Which statement is contrapositive of the conditional: If a triangle is isosceles, then it has 2 congruent sides. 1. If a triangle does not have 2 congruent sides, then it is not isosceles. 2. If a triangle is isosceles, then it does not have 2 congruent

    asked on February 20, 2012
  60. chemistry

    The enthalpy of vaporization of benzene, C6H6(l), is 33.9 kJ mol?1 at 298 K. How many liters of C6H6(g), measured at 298 K and 88.7 mmHg, are formed when 1.90 kJ of heat is absorbed by C6H6(l) at a constant temperature of 298 K? not sure what formulae to

    asked on November 29, 2006
  61. Science

    A girl standing on a bridge throws a stone vertically downward with an intial velocity of 15.0 m/s into the river below. If the stone hit's the water 2.00 seconds later what is the height of the bridge above the water?

    asked on March 3, 2016
  62. physics

    A meter stick is rotated about the end labeled 0.00 cm, so that the other end of the stick moves through an arc length of 6.04 cm. Through what arc length s does the 25.0-cm mark on the stick move?

    asked on February 1, 2017
  63. physics

    A 2.9-kg cart is rolling along a frictionless, horizontal track towards a 1.5-kg cart that is held initially at rest. The carts are loaded with strong magnets that cause them to attract one another. Thus, the speed of each cart increases. At a certain

    asked on January 17, 2017
  64. Science-8th

    How do balance the equation:C5H12 + O2---> CO2 + H2O

    asked on June 5, 2010
  65. Physics

    500 calories of heat is added to 2.0 g of water at 80 degrees Celsius. How much steam is produced?

    asked on March 3, 2013
  66. Chemistry

    Consider the rxn during the Haber Process: N2 + 3H2 ---> 2NH3 The equilibrium constant is 3.9 x 10^(5) at 300 K and 1.2 x 10^(-1) at 500 K. Find Delta H reaction and Delta S for reaction

    asked on July 18, 2011
  67. Geography

    Why did the neolithic agricultural revolution mark a turning point in history?

    asked on November 2, 2016
  68. Econ

    What will result from an increased life expectancy and improved health care?

    asked on May 29, 2016
  69. physics

    Four very thin rods, each 13 m long, are joined to form a square, as part (a) of the drawing shows. The center of mass of the square is located at the coordinate origin. The rod on the right is then removed, as shown in part (b) of the drawing. What are

    asked on January 19, 2017
  70. Stats

    Suppose the following data are selected randomly from a population of normally distributed values. 42 51 43 48 41 57 54 39 45 48 45 39 46 Construct a 95% confidence interval to estimate the population mean. Round the intermediate values to 2 decimal

    asked on December 19, 2013
  71. Chemistry

    I need chemistry help. I think 1. c, 2.b, & 3.a (please tell me why or why not and help me set up the problems if possible) 1.) The following half reaction has been balanced except for the electrons. How many and where should the electrons be included? 14

    asked on November 30, 2014
  72. Math

    Ramon planted 3 rows of seeds. He put 8 seeds in each row. Each row of seeds was 42 inches long. How far apart did Ramon plant the seeds?

    asked on September 27, 2011
  73. Math

    i need help with a few problems. 1. find 3 solutions to the equation y=7x-5

    asked on April 9, 2018
  74. Chemistry

    A small cylinder of helium gas used for filling balloons has a volume of 2.85L and a pressure of 13300kPa at 25 ∘C.How many balloons can you fill if each one has a volume of 1.50L and a pressure of 1.26atm at 25 ∘C?

    asked on April 27, 2014
  75. chemistry urgent

    NH4NO3(s)+H2O(l)→NH4NO3(aq) ΔH = +25.7 kJ. What is the final temperature in a squeezed cold pack that contains 45.5g of NH4NO3 dissolved in 125 mL of water? Assume a specific heat of 4.18J/(g⋅∘C) for the solution, an initial temperature of 29.0∘C,

    asked on April 20, 2014
  76. Physics

    Three charged particles form a triangle: particle 1 with charge Q1 = 84.0 nC is at xy coordinates (0, 4.60 mm), particle 2 with charge Q2 is at (0, -4.60 mm), and particle 3 with charge q = 40.0 nC is at (6.40 mm, 0). What are the x component and y

    asked on January 29, 2012
  77. Grade 11 Physics

    Two kids are on a beach pulling an inner tube. One is pulling at a force of 45N[N] and the other one pulling at 60N[SW]. What is the net force? (I tried to do it by taking the 60N and making a right angled triangle with it, i got 42.43N north and west,

    asked on November 30, 2010
  78. science

    Laws differ form theories because laws do not provide

    asked on September 24, 2018
  79. Physics

    An object is traveling at a constant speed of 12.0 m/s when it slows to a stop. If it takes 10.0 m for the object to stop, what is the magnitude of its acceleration?

    asked on September 9, 2015
  80. math

    A certain brand of cereal costs $3.25 per box before sales tax is added. When you buy 5 or more boxes of this cereal you receive 1 additional box for free. What is the average cost per box of cereal for 6 boxes before sales tax are added ? Please helpp

    asked on February 5, 2013
  81. physics

    Only two forces act on an object (mass=3.19 kg), as in the drawing. Find (a) the magnitude and (b) the direction (relative to the x axis) of the acceleration of the object.

    asked on January 8, 2017
  82. Physics

    A girl standing on a bridge throws a stone vertically downward with an initial velocity of 15.0 m/s into the river below. If the stone hit's the water 2.00 seconds later what is the height of the bridge above the water?

    asked on March 3, 2016
  83. History

    Two reasons that paved Roman roads were one of the most important technological advantage include A) easy access for trade and commerce and faster military production. B) better troop transportation and easy access for trade and commerce. C) water traveled

    asked on September 17, 2019
  84. physics

    The drawing shows two blocks that are placed at the ends of a massless board. The board is balanced on a support that serves as an axis of rotation. The block on the left has a mass of 5.8 kg. What is the moment of inertia of this system about the axis of

    asked on February 3, 2017
  85. Geometry

    For two angles,

    asked on September 22, 2016
  86. Math

    How do I find the next number in the patter, 5,11,29,83,245 ? I think it's 454, but not sure how to figure it

    asked on January 17, 2008
  87. physics

    A ranger in a national park is driving along at 17.9 m/s when a deer jumps into the road 65. m ahead of the vehicle. After a reaction time of t seconds, the ranger applies her brakes, which produce an acceleration of -2.8 m/s2. What is the maximum reaction

    asked on August 21, 2012
  88. Chemistry

    2h2s g 3o2 g 2so2 g 2h2o g H=-1036KG/MOL calculate enthalpy change in kj when 18.2 g of hydrogen sulfide are burned

    asked on October 23, 2011
  89. physics

    A force of 0.053 N is required to move a charge of 36 µ a distance of 30 cm in a uniform electric field. What is the size of the electric potential difference between the two points?

    asked on January 12, 2012
  90. physics

    The hail comes straight down at a mass rate of m/Δt=0.0690 kg/s and an initial velocity of v0= -15.0 m/s. Suppose that the hail described there bounces off the roof of the car with a velocity of +14.0 m/s. Ignoring the weight of the hailstones, calculate

    asked on January 17, 2017
  91. Pre-Algebra

    The treasurer of the student body at a college reported that the receipts from a recent contact totaled $916; Furthermore, he announced that 560 people had attended the concert. Students were charged $1.25 each for admission to the concert, and adults were

    asked on February 1, 2014
  92. English

    Which clues frohe text best indicates that something bad is going to happen to Gram? A. The wind changed its tone and told Sal to slow down B. The smell of Gram's baby powder makes Sal feel sad C. Sal continually prays for gramps not to get them into an

    asked on May 16, 2019
  93. Physics

    Research stations in Siberia, Antarctica, and other remote locations use human power. People at the stations turn pedals, similar to bicycle pedals, that are connected to electrical generators. A researcher wants to investigate the power output of a person

    asked on February 15, 2016
  94. high school chem 1

    Equation: 4NH3(g) + 5O2(g) -> 4NO(g) + 6H2O(g) question: What volume of NH3 is needed to react with 71.6 liters of oxygen?

    asked on March 1, 2011
  95. Statistics

    Find the critical value za/2 that corresponds to a=0.12.

    asked on November 20, 2015
  96. Calculus

    find the absolute extrema of f(x)=sin pi x on [-1,2] Not sure how to do this problem....

    asked on April 28, 2012
  97. geometry

    the angle of depression from d to f measures 10 degrees. if df equals 300m, find df. round to the nearest tenth.

    asked on February 18, 2011
  98. physics

    Two particles are moving along the x axis. Particle 1 has a mass m1 and a velocity v1 = +4.3 m/s. Particle 2 has a mass m2 and a velocity v2 = -6.3 m/s. The velocity of the center of mass of these two particles is zero. In other words, the center of mass

    asked on January 19, 2017
  99. Algebra

    The formula to compute a person's body mass index is B=703*w/h2 B represents the body mass index, w is the person's weight in pounds and h represents the person's height in inches. I need to: a. solve the formula for w. b. What is the weight to the nearest

    asked on October 14, 2009
  100. Physics

    Police find skid marks 65.0 m long on a highway showing where the car made an emergency stop. Assuming the acceleration was -10.3 m/s^ ( about the maximum for dry pavement) how fast was the car going?

    asked on September 19, 2015


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