Questions Asked on
July 9, 2013

  1. College Algebra

    Use the position equation given below, where s represents the height of the object (in feet), v0 represents the initial velocity of the object (in feet per second), s0 represents the initial height of the object (in feet), and t represents the time (in

    asked by Jack
  2. Chemistry

    Gasoline is primarily a mixture of hydrocarbons and is sold with an octane rating that is based on a comparison with the combustion properties of isooctane. Gasoline usually contains an isomer of isooctane called tetramethylbutane (C8H18), which has an

    asked by Kelly
  3. Phoenix University

    2.You are the head of the health information management department at General Hospital. An FBI agent has arrived at your office with a search warrant in hand. He asks to speak with you about the hospital’s health record. How should you respond?

    asked by Stephy
  4. Government

    1. The U.S. Constitution's Article I, Section 1 created the office for the U.S. president. A) True B) False 2. The term of office for a House member is two years. A) True B) False 3. Two requirements for members of the House are that they must be 25 years

    asked by Allison
  5. Math

    Let V be the volume of a pyramid of height 15 whose base is a square of side 5. Part a). Use similar triangles to find the area of the horizontal cross section at a height y. Part b). Calculate V by integrating the crosss-sectional area.

    asked by Molly
  6. math

    Labor rate = $12 per hour Hours worked = 36 Overhead rate = 125% Retail price of good furnished = $185 Sales tax rate = 7% Total bill for services and parts = $ The answer that I got was 762.80. Can you check my answer.

    asked by sarah
  7. chemistry

    Outline a separation scheme for isolating pure isopentyl acetate from the reaction mixture. ( post lab question for the Banana oil lab)

    asked by chelsea
  8. Physics

    In Larry Niven’s science fiction novel Ringworld, a ring of material of radius 1.54 × 1011 m rotates about a star with a rotational speed of 1.5 × 106 m/s. The inhabitants of this ring world experience a normal contact force ~n. Acting alone, this

    asked by Lynn
  9. physics

    A 600 kg dragster accelerates from rest to a final speed of 120 m/s in 400 m (about a quarter of a mile) and encounters an average frictional force of 1200 N. What is its average power output in watts and horsepower if this takes 7.30 s?

    asked by Deborah
  10. Chemisty- Please help!

    What mass of a 0.66 molality ammonium nitrate (80.04g/mol) solution will contain 0.15 mol of solute?

    asked by Kelly
  11. MUSIC

    What is meant by Caribbean music in a new mode What emphasis, in this chapter, seems to justify a departure from traditional presentations of music and culture of the Caribbean?

    asked by Kim
  12. Chemistry

    Calculate the mass (in mg) of KCN needed to make 500. mL of aqueous KCN solution with a pH of 10.00. The Ka of HCN = 5.0 x 10-10. I got the answer 7.8 mg but it's wrong. Can someone please explain how to do it?

    asked by Nat
  13. math

    Your station charges $16.50 for a lubrication job. As a promotion you sell six coupons for lubrication jobs for $90. What percentage discount are you offering for customers who purchase the 6-coupon lube book? Discount (to the nearest tenth) = % The answer

    asked by sarah
  14. Physics

    An olympic sprinter can run 100yd in 9.0s. At the same rate, how long would it take the sprinter to run 100m?

    asked by Tracy
  15. physics

    A dolphin experiences a force of 320 N [up] when it jumps out of the water. The acceleration of the dolphin is 2.6 m/s 2 [up]. (a) Calculate the mass of the dolphin. (b) What would be the acceleration of the dolphin if it had the same strength but half the

    asked by jake
  16. Chemistry

    Fe3O4 reacts with CO according to the equation Fe3O4 + 4CO => 4CO2 + 3Fe If 478.9 g Fe3O4 is reacted with excess CO, what mass of CO2 will be produced?

    asked by Anonymous
  17. Physics

    Both drawings show the same square, each of which has a side of length L=0.75 m. An observer O is stationed at one corner of each square. Two loudspeakers are locate at corners of the square, as in either drawing 1 or drawing 2. The speakers produce the

    asked by Vivien
  18. chemistry

    A piece of aluminium weighing 2.7 gm is heated with 75 ml of H2SO4(specific gravity 1.18 containing 24.7 percent H2SO4 by weight.)After the metal is carefully dissolved,the solution is dissolved to 400ml.Calculate tne molarity of the free H2SO4 in the

    asked by Anonymous
  19. Computers C++

    1). The name of an array stores the __________ of the first array element. 1) memory address 2) value 3) element number 4) subscript 5) None of these

    asked by Thomas
  20. math

    Suppose you want to represent a triangle with sides 12 feet, 16 feet, and 18 feet on a drawing where 1 inch = 2 feet. How long should the sides of the triangle be in inches? The sides of the triangle on the drawing should be inches, inches, and inches.

    asked by sarah
  21. College Algebra

    A rancher has 100 meters of fencing to enclose two adjacent rectangular corrals (see figure). The rancher wants the enclosed area to be 374 square meters. What dimensions should the rancher use to obtain this area? (Round your answers to 2 decimal places.

    asked by Jack
  22. physics

    A 78-kg parachutist, in the first few seconds of her jump, accelerates at a rate of 7.4 m/s2 [down]. Calculate the force she experiences due to air resistance.

    asked by jake
  23. math

    The total price of an article is $7.02, including tax. If the tax rate is 8%, what is the retail price of the article?

    asked by sarah
  24. math

    Purchase price of article = $3,000 Down payment = $0 Number of payments = 36 Monthly payment amount=$93.33 True Annual Interest (to the nearest tenth) = a0 %

    asked by sarah
  25. Spanish

    Sorry for the backwards accents I just got a new keyboard, so I don't know how to do the spanish accents yet. I hope a got more right this time 1. Camarero, ¿me trae ________? Quiero pedir un postre. A. El mantel B. el menú C. la servilleta D. la

    asked by Eri Uchi
  26. statistics

    The respiratory rate per minute in newborns varies according to a distribution that is approximately Normal with mean 50 and standard deviation 5. The proportion of observations from a standard Normal distribution that take values less than 1.15 is about

    asked by Jen
  27. math

    A sphere has a radius of 3.5 inches. Volume (to the nearest tenth) = cubic inches The answer that I got was 179.6. It is wrong ! i I miss a step?

    asked by sarah
  28. math

    There are 35 students in a class who stu dy either art or music, 15 study art. Twice as many students who study art study music. COMPLETE THE VENN DIAGRAM TO SHOW. Art only MUSIC ONLY art and music

    asked by RAHEEM
  29. science

    Define water equivalent of a calorimeter. State its SI unit.

    asked by ram
  30. Physics

    What is the electric field at a point midway between a -7.34 micro coulombs and a +4.49 micro coulombs charge apart 31.5m apart?

    asked by Amalia
  31. Physics

    A 0.363 g wire is stretched between two points 80.3 cm apart. The tension in the wire is 573 N. Find the frequency of first harmonic. Answer in units of Hz

    asked by Help Me Please
  32. College Physics

    1. In a region of two-dimensional space, there are three fixed charges: +1 mC at (0, 0), −2 mC at (18 mm, -3 mm), and +3 mC at (-8 mm, 12 mm). What is the net force on the −2-mC charge? Find the magnitude and direction (counterclockwise from the

    asked by Joshua
  33. Statistics

    The following risk ratios give the increased risk for various diseases comparing two groups (exposed vs. unexposed). a. 2.5 (2.0, 3.0) b. 1.03 (1.02, 1.04) c. 6.0 (.85, 9.8) d. 0.98 (0.88, 1.08) e. 0.20 (.05, 1.05) Which risk ratios are statistically

    asked by Mike
  34. math

    find the minimum and the maximum possible areas of a rectangle measuring 2 km by 5 km

    asked by erianna
  35. Child Development

    When preparing an environment for school- aged children the caregiver should ensure that the A. outdoor area allows them to continually challenge their physical ability B. Children are continually intermixed with the younger children C. Environment

    asked by Brenna
  36. Calculus

    Find the volume of the solid obtained by rotating the region under the graph of the function f(x) = (2)/(x+1) about the x-axis over the interval [0,3]

    asked by Annie
  37. Physics

    A 3.21 kg mass attached to a light string rotates on a horizontal, frictionless table. The radius of the circle is 0.855 m, and the string can support a mass of 15.3 kg before breaking. What maximum speed can the mass have before the string breaks? Answer

    asked by Lynn
  38. Calculus

    Find the area of the shaded region bounded by y=7x and y=x(sqrt(22^2-x^2))

    asked by Annie
  39. statistics

    A manufacturer of fishing line claims that by using machines, rather than people, at the assembly plant that this will reduce the amount of defects in the line. Currently the defective rate is 15 per 1000 ft. Which is the correct null hypothesis?

    asked by Anonymous
  40. mathematics

    Hi, I'm not sure if I'm giving the correct answer for this problem. The question states; The values of computers in the years after its purchase date are listed in the following table. Year 0=1500, Year1=1200, Year2=1100,Year3 +1000, Year 4 = 800, Year 5

    asked by Joan


    asked by Mia
  42. math

    Can someone help me with this question i've spent hours on it!!:( 6. Eight square tiles are laid out on a table so that they make a solid pattern. Each tile must touch at least one other tile along an entire edge. The squares all have sides of length 1.

    asked by Kaitlin
  43. Conversions

    The parallel sides of a trapezium are 10m and 14m. If the area of the trapezium is 130 square meter, what is the distance between the parallel sides? Convert the answer into square yards.

    asked by Jnr John
  44. physics

    The electric potential in a certain region is V = a x2 + b x + c, where a = 14 V/m2, b = −19 V/m, and c = 61 V. Determine the position where the electric field is zero. Answer in units of m Please help!

    asked by Kennedy
  45. College Chemistry

    Calculate the pH at the equivalence point if 25.00 mL of 0.010M barbituric acid (HC4H3N2O3) is titrated with 0.020M NaOH. (Ka barbituric acid = 1.0 x 10^-5)

    asked by Mary
  46. Algebra 2...

    At 1:00 a.m, a homocide detective found the reading of a corpse's body temperature to be 88 degrees Fahrenheit . One hour later, the body temperature is 83 degrees Fahrenheit. If the body has been in a 74 degrees Fahrenheit room since its death, what is

    asked by Anonymous
  47. Physics

    A phone cord is 2.85 m long. The cord has a mass of 0.254 kg. A transverse wave pulse is produced by plucking one end of the taut cord. The pulse makes four trips down and back along the cord in 0.758 s. What is the tension in the cord?

    asked by Physics Hates Me
  48. Math: Calc 2

    Find the volume of the solid obtained by rotating the region under the graph of the function f(x) = x^(13/12) about the x-axis over the interval [1,3]. Thanks!

    asked by James
  49. Physics

    A satellite moves in a circular orbit around the Earth at a speed of 5.9 km/s. Determine the satellite’s altitude above the surface of the Earth. Assume the Earth is a homogeneous sphere of radius 6370 km and mass 5.98 × 1024 kg. The value of the

    asked by Lynn

    Find the volume of the solid obtained by rotating the region underneath the graph of f(x) = (x)/sqrt(x^3+1) about the y-axis over the interval (1, 10)

    asked by Cara
  51. algebra

    Simplify -2(x+3)- 5(x-4)

    asked by Anonymous
  52. Economics

    GDP=375 Government spending increases by 50 Taxes increase by 50 MPC=.9 What is the new equilibrium GDP?

    asked by Shan
  53. (pls help) physics

    (Q1) A 50kg boy suspends himself from a point on a rope tied horizontally between 2 vertical poles. the 2 secments of the rope are then inclined at angles 30degrees and 60degrees respectively to the horizontal. The tension in the sefments of the rope is

    asked by ikye
  54. Physics (mechanics)

    A u-control airplane of mass m is attached by control wires of length L and negligible mass to the "pilot" who controls the lift provided by the wing FL. The wires control the plane's elevator or angle of attack. The plane's engine keeps it moving at

    asked by JK

    An airplane is flying straight and level at a speed vo = 150 mph and with a constant time rate of increase of speed v' = 20 ft/s^2, when it starts to climb along a circular path with a radius of curvature p = 2000 ft. The airplane maintains v' constant for

    asked by ROCKY
  56. help please

    When a person has episodes of hypomania that shift back and forth with mild depression for at least two years, he or she has what form of bipolar disorder? A. Bipolar II Disorder B. BP-NOS C. Bipolar I Disorder D. Cyclothymic Disorder D??

    asked by Anonymous
  57. MATH:( Base systems?!

    2. Determine the base- five representations for each of the given numbers. Remember that a numeral with no subscript is understood to be n base ten. a.47 b. 179 c. 354

    asked by Kaitlin
  58. math

    What is the standard form of the number 2x1 + 4x1/10 + 9x 1/1,000.

    asked by sam
  59. math

    In a class of 80 seniors, there are 3 boys for every 5 girls. In the junior class, there are 3 boys for every 2 girls. If the two classes combined have an equal number of boys and girls, how many students are in the junior class?

    asked by allie
  60. Economics

    GDP=520 Government spending decreases by 15 Taxes decrease by 20 Investment increases by 30 Net Exports decrease by 30 MPC=.75 What is the new equilibrium GDP?

    asked by Shan
  61. Computer Programming

    I'm trying to create a vba code that solves this problem: 50 apartment units rent for 600 a month, for each 40 dollar increase in rent a unit becomes unoccupied. I want to find the max profit and number of units at that number. Sub Rent() Dim Rent As

    asked by Dom
  62. Math Geometry

    a shipping crate carrying e readers has a length of 19 1/3 feet, a width of 7/23 feet, and a height of 7 5/6 feet. Whaat is the volume of the shipping crate? Show your work. i know V=lwh , but I'm getting the wrong answer! Please help.

    asked by andra
  63. america government

    precedent, while not absolute constraint on the courts,is needed

    asked by Anonymous
  64. physics[

    Consider a spacecraft whose engines cause it to accelerate at 5.0 m/s2. (a) What would be the spacecraft’s acceleration at a later time if half its fuel has been used up? (b) What assumptions have you made in order to answer (a)?

    asked by jake
  65. Number System

    Subtract the following numbers using the standard method. 111 1110 0010 - 100 0111 - 111 =

    asked by Jnr John
  66. math

    1. A hotel has 120 rooms. If the number of double room is 8 more than three times the number of single rooms, how many single rooms does the hotel have? 2. A mechanic earns $5 more per hour than his helper. On a six-hour job the two men earn a total of

    asked by gary
  67. Child Development

    Which of the following groups requires more irregular scheduling than the other three groups? A. 12-to 18 months-old B. 3-t0 5 years old C. school age children D. 18 - to 36 months old My answer is C can someone check my answer please

    asked by Brenna
  68. Physics

    For each of the following scenarios, indicate whether the oscillation period of the block becomes shorter, longer or remains unchanged. Note: you must clearly mark your answer (for example, highlight it in red) from the multiple-choice list below and you

    asked by Anonymous
  69. Probllem solving and critical thinking

    what is the premise of this argument:2. If the library has The Lord of the Rings, you won’t find it on the first floor. This is because all fantasy novels are fiction and all works of fiction are housed on the second floor of the library. Of course, I am

    asked by Anonymous
  70. statistics

    Steven collected data from 20 college students on their emotional responses to classical music. Students listened to two 30-second segments from “The Collection from the Best of Classical Music.” After listening to a segment, the students rated it on a

    asked by carrie
  71. MATH

    Compute the volume of the solid obtained by rotating the region in the first quadrant encolsed by the graphs of the functions y = x^2 and y = sqrt(x) about the y-axis. I keep getting (1/3)pi and can't figure out what I'm doing wrong!

    asked by Cara

    Suppose tan theta=15pi/18 is less than theta 3pi/2 , what are the other trigonometric functions?

    asked by NOEL
  73. algebra

    Determine the quadratic function f whose vertex is (3,-2) and passes through(1,6) f(x) = ax^2 + bx + c

    asked by Chris
  74. maths

    Suppose p(x)=ax^2+bx+c is a quadratic polynomial with real coefficients and |p(x)|≤1 for 0≤x≤1. Find the largest possible value of |a|+|b|+|c|.

    asked by maths
  75. French

    In order to say "This city is in France," we can say "Cette ville est en France." But, why is it that we say "Cette ville est aux Etats-Unis" for "This city is in the United States?" I don't exactly understand the difference between "en" and "aux."

    asked by Anonymous
  76. math

    Plywood is sold in rectangle sheets 4 feet wide and 8 feet long. How many 4x8 sheets of plywood are needed to completely cover a rectangle shaped floor measuring 16 feet by 12 feet. 6 7 8 9 32 192

    asked by help me!!!
  77. Geometry

    I have two post that meet the ground perpendicular and the ground is level. One post is 40 feet high, the other is 25 feet high. If I draw a hypotenuse from the top of one post to the base of the other post and another hypotenuse from the top of the other

    asked by Josh
  78. Monessori

    What is the greatest number that would be produced when 750 is rounded off to the nearest hundreds?

    asked by Blue
  79. math

    There are 360 people at a museum opening. Half of the people are museum supporters, 3/8 are artists, and the rest are museum employees. How many people are artists ?

    asked by sam
  80. Child Development

    A/an------ is a chracteristic of children at age five A. understanding of ramifications of one's action B. desire to play with children of different ages C. awardness with emerging motor skills D. slowing down of growth and development my answer is (D) can

    asked by Brenna
  81. Stitistics

    An oil change company advertises that they can change the oil in your car in 15 minutes. Based on the data collected below, what is the probability that oil change will take more than 15 minutes? Using this example as a template, post a similar example

    asked by Sandi
  82. Physics (help steve)

    Exact solutions for many-body problems are rarely encountered in physics. The following problem deals with a non-trivial motion of four charges. Due to the symmetry of the problem it is possible to determine the trajectories of the charges analytically.

    asked by Kay
  83. Prisms

    The solid prism has constant cross section which is a trianle sides 8cm, 7cm and 7cm long respectively. If the lenght of the prism is 9cm, calculate the volume of the prism.

    asked by Jnr John
  84. Math Geometry

    a shipping crate carrying e readers has a length of 19 1/3 feet, a width of 7/23 feet, and a height of 7 5/6 feet. Whaat is the volume of the shipping crate? Show your work. i know V=lwh , but I'm getting the wrong answer! Please help. I got 58/3 x 23/3 x

    asked by andra
  85. Physics

    The pendulum is transported to another planet where the acceleration due to gravity is smaller.

    asked by Anonymous
  86. Physics

    7. Which of the following object(s) would be suitable for building a functional clock? Note: you must clearly mark your answer (for example, highlight it in red) from the multiple-choice list below and you must provide an explanation of your answer(s) to

    asked by Anonymous
  87. Number System

    Add the following numbers: 1110 1011 101 + 101 1111 + 1111 =

    asked by Jnr John
  88. HCA/220

    I have a final due within this week. I have to create a 15-20 slide power point presentation storyboard. I do not know which one to pick; either a medical documentary or a training presentation for new hires. I have to include 45 medical words. Can someone

    asked by Purple
  89. Math

    a rectangular prism has a length of 1/2 fofoot and a height of 1/4 foot. what is the width of the right rectangular prism if its volume is 1/4 foot?

    asked by andra
  90. bisic gramma

    Which of the following is not a common sentence error

    asked by linda
  91. Economics

    GDP=500 Government spending decreases by 20 Taxes increase by 20 Investment decreases by 20 MPC=.8 What is the new equilibrium GDP?

    asked by Shan
  92. economics

    the performance of S.A economy from jan2009 to dec2011

    asked by stephen
  93. Physics (help steve)

    A helium ion is at rest in a laboratory when it is put in an electric field of E=2 N/C. An infrared light, of wavelength 2000 nm, is directed towards the ion. The ion is moving towards the source of radiation. After what time in the laboratory frame in

    asked by Kay
  94. maths

    A factory produces two products A and B using raw materials p and q. It uses 3 units of p and 1 unit of q to produce one unit of A. It uses 1 unit of p and 2 units of q to produce one unit of B. The maximum daily supplies are 330 units of p and 220 units

    asked by maths
  95. heeeelp math

    Find the number of polynomials f(x) that satisfy all of the following conditions: f(x) is a monic polynomial, f(x) has degree 1000, f(x) has integer coefficients, f(x) divides f(2x^3+x)

    asked by lin
  96. cananyone solvethis math

    A subset S of {1,2,…,n} is said to be packed if whenever i,j∈S the number ⌊(i+j)/2⌋ is also in S. Determine how many subsets of {1,2,…,25} are packed. Details and assumptions i and j need not be distinct. If i=j is in the set, then clearly so is

    asked by lin
  97. Algebra 2.

    1. Negative Absolute Value x+4 ABV

    asked by Anonymous
  98. physics

    The efficiency of a machine is in general defined as the ratio between useful (released) energy and the input energy. Therefore, the exact formulas for efficiency depend on the purpose of the machine. What's the difference in the maximal efficiency of a

    asked by maths
  99. Physics (help steve)

    A boy is spinning on a chair and holding a paper bag so that it is horizontal, and perpendicular to the axis of the rotation. What should be the angular velocity of the boy in radians/second so that the bottom of the bag breaks? Details and assumptions

    asked by Kay
  100. history

    During the election of 1936, declaring their party a "millionaire's union," Franklin Roosevelt focused mainly on defeating the A. Union Party running Gerald K. Smith. B. Liberty League running Father Coughlin. C. Union Party running William Lemke. D.

    asked by tesha
  101. heeeeeeeeelp math

    For every positive integer n consider all polynomials f(x) with integer coefficients, such that for some real number a *x(f(x+a)−f(x))=n*f(x) Find the largest possible number of such polynomials f(x) for a fixed n

    asked by lin
  102. math

    Nakim simplified 3 times the square root of 2x plus x times the square root of 8x minus 5 times the square root of 18x and got -10x times the square root of 2x for an answer. Part 1: Using complete sentences, explain what Nakim did wrong. Part 2: Show all

    asked by kidd
  103. Math 17 Synthetic Division

    Using synthetic division, divide (x^6)(y^6) by x-y. please show the process. THANK YOU! :)

    asked by Rob
  104. Economics

    GDP=500 Government spending decreases by 20 Taxes increase by 20 Investment decreases by 20 MPC=.8 What is the new equilibrium GDP?

    asked by Shan
  105. Montessori

    What is the greatest odd number that would be produced when 660 is rounded off to the nearest hundreds?

    asked by Blue
  106. maths

    A subset S of {1,2,…,n} is said to be packed if whenever i,j∈S the number ⌊(i+j)/2⌋ is also in S. Determine how many subsets of {1,2,…,25} are packed. Details and assumptions i and j need not be distinct. If i=j is in the set, then clearly so is

    asked by maths
  107. Prisms

    A swimmin bath has verticle sides and the floor slopes uniformly so that, when the bath is full, the water is 1m deep at the shallow end and 4m deep at the other end. If the bath is 25m long and 12m wide, calculate the volume of the water in the bath when

    asked by Jnr John
  108. math

    what is missing number for magic square for 22, 111,72, 131

    asked by aj

    What i the story of the last butterfly ?

    asked by May
  110. Physics

    Calculate the coulomb force on q. They are all in a straight line q1, q2,q3. Q1:1.05 micro coulombs Q2:5.51 micro coulombs Q3:-2.15 micro coulombs The distance, r1, between q1 and q2 is 20.1cm. The distance, r2, between q2 and q3 is 15.3 cm. Also,

    asked by Amalia


    asked by Mia
  112. Number and Operations

    when 20 is divided by a positive integer n, the remainder is 2. how many possible values are there for n?

    asked by Anonymous
  113. math

    I have the problem ((square root of h^2+4h+5)-(square root of 5))/h. I am supposed to be finding the limit as h approaches 0 from the right. We are supposed to solve it algebraically and I believe I should be using a the conjugate but I am not exactly sure

    asked by Nat
  114. socials 11

    explain how the clothing women wore during the 1920s was indicative of their changing role.

    asked by alyssa
  115. Health Ethics

    are laws and regulations the problem or the solution in addressing ethical problems? what is the alternative? explain your answer in 200 words or more

    asked by kat
  116. Excel

    Say this is my cell: 2013 *aaron e. pacheco*9743 2nd Avenue*Boca 33431 **9049 how would i use the text function to extract the first, middle, and last names from a list of cells like the one above with differing name lengths? and possibly

    asked by Dom
  117. science

    give the value of acceleration due to gravity

    asked by michelle
  118. maths

    the tens digit of a two digit number is 5 more than the units digit. when reversed and added to the original number the answer is 99. find the original number.

    asked by ria
  119. english

    what motivates us as writers and viewers to create and interact with characters through pieces of work such as " a beautiful mind" (movie. This is our essay question. what topic and 3 arguments could i talk about in my essay

    asked by sarah
  120. Number System

    Converts binary 110111011 to hexasecimal.

    asked by Jnr John