Questions Asked on
February 11, 2011

  1. American Goverment

    IRS Federal Agency. List the URL address. Considering the informatioin on the website, briefly describe the mission of the agency. What policy choices might bureaucrats from the agency advocate in order to expand the activities that fit their mission?

    asked by Jinx
  2. chemistry

    I keep thinking that 3 is the van't hoff factor for ammonium chloride, but I keep getting my answer wrong. Any ideas?

    asked by Jess
  3. Physics HELP ASAP PLEASE

    A hawk is flying horizontally at 10 m/s in a straight line 200m above the ground. A mouse it was carrying is released from its grasp. The hawk continues on its path at the same speed for two seconds before attempting to retrieve its prey. To accomplis the

    asked by Shannon
  4. Physics

    A 70-kg ancient statue lies in the bottom of the sea. It’s volume is 3.0 x 10 4 cm 3 How . much force is needed to lift it? (Use g=10 m/s 2 and the density of water is 1.0 x 10 3 kg/m 3

    asked by Force
  5. algebra

    Patty is only 7 years old, but she insists she can play basketball with a regulation-height hoop. She can throw the ball with an initial velocity of 11 feet per second. The equation for the height of the ball is y = −16t2 + vt + s where v is the initial

    asked by uriel
  6. Physics

    If a 60 kg person stands on a low wall with her full weight on the ball of one foot and the heel free to move, the stretch of the Achilles tendon will cause her center of gravity to lower by about 2.5 mm. What is the spring constant of her Achilles tendon?

    asked by mady
  7. physics

    The meter stick in the drawing can rotate about an axis located at the 20.0-cm mark. The axis is perpendicular to the screen. A force F acts at the left end; the force is perpendicular to the meter stick and has a magnitude of 175 N. A second force, either

    asked by alice
  8. Math app

    farmer Linton wants to find the best time to take her hogs to market. The current price is 88cents per pound, and her hogs weigh an average of 90 pounds. the hogs gain 5 pounds per week, and the market price for hogs is falling each week by 2 cents per

    asked by anonymous
  9. statistics

    Please let me know if I solved this right The lifetime of television produced by the Hishobi Company are normally distributed with a mean of 75 months and a standard deviation of 8 months. If the manufacturer wants to have to replace only 1% of its

    asked by Holly
  10. Biology

    (purple smooth = 75, white smooth = 28, purple wrinkled = 24, white wrinkled = 8) Account for the difference between the expected and experimental values.

    asked by Jones
  11. physic

    A police car is travelling in a straight line with constant speed vp.A truck travelling in the same direction with speed 3/2 vp passes the police car.The truck driver realizes that she is speeding and immediately begins to slow down at a constant rate

    asked by shaiz
  12. Calculus

    A chain 27 feet long whose weight is 74 pounds is hanging over the edge of a tall building and does not touch the ground. How much work is required to lift the entire chain to the top of the building?

    asked by Allison
  13. physics

    A block of mass m is dropped from the fourth floor of an office building and hits the sidewalk below at speed v. From what floor should the mass be dropped to double that impact speed?

    asked by kevin
  14. Teacher's Aide: Helping Abused Children

    1. The Stubborn Child Law enacted by Massachusetts in 1646 permitted parents to A. use corporal punishment when children disobeyed them. B. keep children out of school if they were needed for family work purposes. C. institutionalize a child born with a

    asked by Kate
  15. PHYSICS grade 11

    a 27 g arrow is shot horizontally. the bowstring exerts an average force of 75 N on the arrow over a distance of 78 cm. detrmine the speed of the arrow as it leaves the bow.

    asked by alyihsa
  16. Physics

    Engineers are trying to create artificial "gravity" in a ringshaped space station by spinning it like a centrifuge. The ring is 170 m in radius. How quickly must the space station turn in order to give the astronauts inside it apparent weights equal to

    asked by M
  17. Physics 2 Charges what is the magnitude at point P

    Two charges, Q1= 3.20 microCoulombs, and Q2=5.90 microCoulombs, are located at points (0,-2.00cm) and (0,+2.00cm. What is the magnitude of the electric field at point P, located at (5.00cm,0), due to Q1 alone?

    asked by Mike
  18. statistics/forecasting

    The last 4 weekly values of sales were 80, 100, 105, and 90 units. The last four forecass were 60, 80, 95, and 75 units. These forecasts illustrate which answer: qualitative methods adaptive smoothing slope bias trend projection

    asked by Sam
  19. Physics

    A sprinter accelerates at 4 m/s2 for 3 seconds, and then runs the rest of the race at a constant speed. If the race is 100 m, how much time does the sprinter take to fi nish the race?

    asked by Bob
  20. physics

    A pendulum bob is released from some initial height such that the speed of the bob at the bottom of the swing is 3.2 m/s. The acceleration of gravity is 9.81 m/s 2. What is the initial height of the bob?

    asked by jay
  21. English

    Does the word Promethean need to be capitalized or lower case letter? It is called a promethean board.

    asked by MM
  22. Chem Honors

    at what temperature will nitrogen gas have a density of 1.13 grams/meters at a pressure of 1.09 ATM

    asked by Ari
  23. Physics

    A current of 1.03 A flows in a wire. How many electrons are flowing past any point in the wire per second? The charge on one electron is 1.60 10-19 C

    asked by Jasmine
  24. physics

    A pendulum clock has a heavy bob supported on a very thin steel rod that is 1.00000 m long at 18.0celcius. 1 - what is the clock's period if the temperature increases by 11.0 celcius? Assume that coefficient of linear expansion of steel is 1.20×10−5K

    asked by jake
  25. AP European History

    How did Medieval Europe lay the groundwork for the re-birth of Europe (Renaissance)? What conditions existed that allowed Europe to evolve out of medieval conditions? I don't even know where to start, other than that I know that monarchs began to solidify

    asked by Christina
  26. physics

    how does temperature affect the time it takes to reach thermal equilibrium?

    asked by calous --- HELP PLEASEE!!!
  27. physics

    How much work is required to lift a 600-kg satellite to an altitude of 4 * 10^6 m above the surface of the earth? The gravitational force is F=GMm/r^2, where M is the mass of earth, m is the mass of the satellite, r is the distance between them. The radius

    asked by Allison
  28. Physics 112

    Two stationary point charges of 5.00 and 2.00 are separated by a distance of 60.0 . An electron is released from rest at a point midway between the charges and moves along the line connecting them. What is the electric potential energy of the electron when

    asked by Margaret
  29. Calculus

    find the volume of the solid formed by rotating the region enclosed by y=e^(1x+4), y=0, x=0, x=0.9

    asked by Nimrah
  30. Physics please help!!

    A 30.0 kg child slides down a long slide in a playground. She starts from rest at a height h1 of 18.00 m. When she is partway down the slide, at a height h2 of 9.00 m, she is moving at a speed of 9.30 m/s. Calculate the mechanical energy lost due to

    asked by Megan
  31. accounting

    V P3-10. Calculating Present Value of a Savings Fund. (Obj. 5) Hal Thomas wants to establish a savings fund from which a community organization could draw $850 a year for 45 years. If the account earns 6 percent, Hal will have to deposit $ now to achieve

    asked by cheryl
  32. Math

    An isosceles triangle and a rectangle share a base. The area of the rectangle is 4 times the area of the triangle. The area of the triangle is 60 cm^2 and its height is 15 cm. Find the dimensions of the triangle.

    asked by Mary
  33. physics

    while watching ocean waves at the dock of the bay. otis notices that 10 waves pass beneath him in 30 seconds. he also notices that the crests of succesive waves exactly coincide with the posts that are 5 meters apart. what are the period frequency

    asked by charlie
  34. chemistry

    A student found that her mixture was 15% NH4Cl, 20% NaCl, and 75% SiO2. Assuming her calculations are correct, what is the most likely source or error in her experiment?

    asked by Anonymous
  35. chemistry

    determine the molarity of a 18 ml sample of HCl solution that is required to prepare 30 ml of 2.3 M HCl solution?

    asked by linda
  36. Statistics

    Is this right? and how can I break it down if needed? A factory’s worker productivity is normally distributed. One worker produces an average of 75 units per day with a standard deviation of 20. Another worker produces at an average rate of 65 per day

    asked by Kimberly
  37. physics

    calculate the speed of waves in a puddle that are 0.15m apart and made by tapping the water surface twice each second

    asked by charlie
  38. math

    Choi deposited $2500 in a savings account that pays 4.75% interest compounded quarterly. What will be the total amount of money in the account 15 years from the day of deposit?

    asked by kathy
  39. physics

    A 751 N diver drops from a board 9.10 m above the water’s surface. The acceleration of gravity is 9.81 m/s2 . a) Find the diver’s speed 3.00 m above the water’s surface. Answer in units of m/s.

    asked by Anonymous
  40. Chemistry

    A square of aluminum foil measuring 3.20 inches on each side weighs 275 mg. The density of aluminum is 2.70 g/cm3. Find the thickness (in micrometers) of the foil.

    asked by Katie
  41. Physics 112

    Three point charges with values = 4.00 , = 1.00 , and = 7.00 are placed on three consecutive corners of a square whose side measures = 5.00 . Point A lies at the fourth corner of the square, diagonally across from . Point B lies at the center of the

    asked by Margaret
  42. physics

    metal sphere has a charge of +10C. What is the net charge after 5.1 x 1013 electrons have been placed on it?

    asked by Edel
  43. Physics

    A force of gravity pulls downward on a book on a table what force prevents the book from accelerating downward?

    asked by Jenifer
  44. Physics

    A small bead of mass m is free to slide along a long, thin rod without any friction. The rod rotates in a horizontal plane about a vertical axis passing through its end at a constant rate of f revolutions per second. Show that the displacement of the bead

    asked by 0255872
  45. HRM 240

    Final Project paper. how do i go about setting up my paper to make sure i discuss all of the things that are being asked of me for my final paper.

    asked by Whitney
  46. art101

    1. CheckPoint: Greek and Roman Architecture • Resource: Ch. 15 of A World of Art • Write a summary comparing the characteristics and innovations of each Greek and Roman architecture in 200 to 300 words. • Provide two representative examples of

    asked by bob
  47. Physics

    A 86.0-kg man is riding an escalator in a shopping mall. The escalator moves the man at a constant velocity from ground level to the floor above, a vertical height of 5.50 m. What is the work done on the man by each of the following forces?

    asked by Zac
  48. Physics

    A spy satellite is in circular orbit around Earth. It makes one revolution in 6.05 hours. (Radius of the Earth=6.371 106 m) (a) How high above Earth's surface is the satellite? What is the satellite's acceleration

    asked by Renee
  49. phyics

    An athlete in a competition needs to get from point A to another point B directly across from a river. He can swim in stationary water at a speed of 2.0 mi/h, and he can run at a speed of 5.0 mi/h. If the river does not flow, then to get from A to B he

    asked by Roxie Anne
  50. Vocabulary- check my answer

    The shirt that Jack stole was worth just three dollars, so he was only charged with a _________. a) ruffian b)misdemeanor.... Is this right??? c)extortion d)condemnation PLEASE HELP

    asked by Jennifer
  51. Math & Stats

    Please help I was up till 2am trying to figure this out last night, Thanks The top selling Red and Voss is rated 70,000 miles, which means nothing. In fact, the distance the tires can run until they wear out is a normally distributed random variable with a

    asked by Tiffany
  52. College Electric Physics

    (a) What is the electric potential energy in joules of two electrons separated by 1.98 nm? (b) What would be it be if the separation was doubled?

    asked by Bob
  53. physics

    the lowest frequency we can hear is about 20hz. calculate the wavelength associated with this frequency for sound that travels at 340m/s. how long is this in feet.

    asked by charlie
  54. Physics II

    Two charges, Q1= 3.20 microCoulombs, and Q2=5.90 microCoulombs, are located at points (0,-2.00cm) and (0,+2.00cm. What is the magnitude of the electric field at point P, located at (5.00cm,0), due to Q1 alone?

    asked by John
  55. geometry

    how many one-centimeters squares fit inside a square that has an area of 9 square meters?

    asked by bonumpedown
  56. Business Finance

    George Wilkins checked the spreadsheet where he keeps track of his assets and liabilities. He discovered that (i) he owes $80,000 on his house, which he believes to be worth $150,000; (ii) his car is worth $20,000, against which there is $2,000 on the

    asked by LaShun
  57. physics

    Q1 and Q2, when separated by a distance of 2 m, experience a force of repulsion eqaul to 1.8 N.(a) What will the force of repulsion be when they are 10 m apart? (b) if the ratio Q1/Q2 = 1/2, find Q1 and Q2 ( r = 10m)

    asked by Anonymous
  58. chem

    Calculate the pH after 0.12 mol of NaOH is added to 1.00 L of 0.60 M HF and 1.06 M KF

    asked by michele
  59. english

    Using the topic of home ownership versus leasing, identify a topic and provide a topic sentence you would use in a paragraph about the topic.

    asked by Anonymous
  60. Physics

    A stone of mass 0.29 kg is tied to a string of length 0.55 m and is swung in a horizontal circle with speed v. The string has a breaking-point force of 85 N. What is the largest value v can have without the string breaking?

    asked by Renee
  61. algebra

    determine if (-3/10,-2 is a solution to 10x,-9 =15

    asked by vickie
  62. Chemistry

    Which of the following forms a solid with non-directional covalent bonds? A) neon B) chlorine C) copper D) carbon E) selenium

    asked by Anthony
  63. algebra

    a^2 15a^3

    asked by ann
  64. physics

    What is the force of gravity between two spheres that have a mass of m1 =13 kg, m2 = 49 kg and are separated by 35 m?

    asked by Anonymous
  65. Science

    What does the Georgia Forestry Commission do? How can they do more to help? Website address please also.

    asked by Demarcus
  66. physics

    A major-league pitcher can throw a baseball in excess of 44.6 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 17.7 m away from the point of release?

    asked by Ziich
  67. math

    factor the expression 81x^2-54xy+9y^2 into product of binominials

    asked by tonya
  68. Vocabulary- check my answer

    The shirt that Jack stole was worth just three dollars, so he was only charged with a _________.

    asked by Jennifer
  69. algebra

    the volume of a cylinder is represented by the polynomial 2pier^3 + 12piex^2 + 18piex. find the expression for the radius and the expression for the height in terms of x

    asked by Kay
  70. Physics

    At a height of 15 meters above the surface of a lake, a sound pulse is generated. The echo from the bottom of the lake returns to the point of origin 0.150 s later. The air and water temperatures are 20°C. How deep is the lake?

    asked by Kristina
  71. Physics...help please!

    I fire a tennis ball from an air cannon, straight up from ground level, at initial speed v0. At the instant it reaches the top of its trajectory, I fire a second tennis ball at the same initial speed. Air resistance is negligible. At what fraction of the

    asked by Cecille
  72. physics

    An airplane has a velocity relative to the air of 181 m/s in a westerly direction. If the wind has a speed relative to the ground of 53 m/s directed to the north, what is the speed of the plane relative to the ground?

    asked by Anonymous
  73. Chemistry

    When copper wire is placed into a silver nitrate solution, silver crystals and copper(II) nitrate solution form. If 57.1 g silver is actually recovered from the reaction, determine the percent yield of the reaction.

    asked by Anonymous
  74. trig

    Find the altitude of an isosceles triangle whose base in 30 cm vertex angle is 75 degres

    asked by ...wew
  75. Com155Wk8

    Read the second paragraph of the synthesis passage. It may be found on pp. 38 & 39. Using your reading for the week and this paragraph in particular, answer the following questions. What is the key objective when writing a paragraph on synthesis? Do you

    asked by Anonymous
  76. Chemistry

    If the column of water in the water barometer fore to a height of 35ft, what would the atmospheric pressure be in mm Hg? mmH20X(density of water/density of Hg)= mmHg Density of water=0.99707 Density Hg=13.5340

    asked by Brian
  77. math

    Evaluate the function f(x) = -x2 + 5 for x = 4

    asked by clay
  78. algebra

    factor: 6x^2-13x+6

    asked by tam
  79. Physics

    A uniform plank of length L leans against a vertical wall, its head a distance h above the horizontal ground. If we let go of the plank from rest, how far above the ground is the head of the plank the moment it loses contact with the wall?

    asked by OPTIPLEX
  80. physics

    What is the force of gravity between two spheres that have a mass of 6 kg and are separated by 36 m?

    asked by Anonymous
  81. science

    if the ear canal is blocked by wax why would this caues deafness

    asked by amanda evangelides
  82. Organic Chemistry

    Why does eugenol and d-limonene dissolve in dichloromethane?

    asked by Mel
  83. fundamental trigonometric indentities

    tan^2x-sin^2x=tan^2xsin^2x

    asked by Anonymous
  84. statistics

    Health Club Schedule The time per workout an athlete uses a stairclimberis normally distributed with a mean of 20 mins and a standard deviation of 5 min. An athlete is randomly selected. Find the probability that the athlete uses a stairclimber between 20

    asked by Jessica
  85. Chemistry

    You begin with 100mL of air at 1 atm of pressure. How would you change the pressure in your machine to accomplish you goal of 500mL?

    asked by Dorothy
  86. financial managerial accounting

    Boeing Company is the largest manufacturer of commercial aircraft in the United States and is a major employer in Seattle, Washington. Explain why each of the following individuals or organizations would be interested in financial information about the

    asked by Anonymous
  87. trig

    80 feet from the base of a tower the angle of elevation to the top is 36 degree find the height of the tower

    asked by ...wew
  88. Chemistry Lab

    When 0.671 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 109C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant

    asked by Shawn
  89. Physics

    In recent years, a number of nearby stars have been found to possess planets. Suppose, the orbital radius of such a planet is found to be 3.3 1011 m, with a period of 1080 days. Find the mass of the star

    asked by Renee
  90. Chemistry

    When 0.934 g of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 383C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant

    asked by Shawn
  91. Physics

    A pendulum is 0.9 m long and the bob has a mass of 1.0 kg. At the bottom of its swing, the bob's speed is 1.5 m/s. What is the tension in the string at the bottom of the swing?

    asked by Renee
  92. Chemistry

    Based on the results of problems 8 and 9 if the heat of formation of water is -286 kJ/mol, The H ffor CaO(s) is kJ/mol.

    asked by Shawn
  93. AP European history

    So, I'm supposed to answer the question: Europe during the Middle Ages in often imagined as an isolated and inward looking time in history. Defend or refute this statement. I don't know which way I should answer it, as defending it or refuting it. I mean,

    asked by Alex
  94. physics

    a nurse counts 76 beats in one minute. what are the period and frequency of the hearts oscillations?

    asked by charlie
  95. math

    The floor tile is one square foot. The kitchen floor was covered with 100 floor tiles. What was the area of the kitchen floor in square inches?

    asked by marla
  96. Chemistry

    calculate the enthalpy change in delta H foor heating 250 grams of liquid water from 0 degrees celcius to 100 degrees celcius.

    asked by Bri
  97. geometry

    Given ABCD is a square AC = BD = 4 units Find coordinates of ABCD

    asked by Matthew
  98. chemistry

    explain why you get two different pH values for same solution when calculating and using pH meter of same solution?

    asked by kabelo
  99. geometry

    the legs of a right angled triangle are 5 cm and 12cm long. find the lengths, to the tenth, of the segment into which the bisector of the right angle divides the hypotenuse.

    asked by verenice
  100. Amazon Information

    Amaazon opened up reviews on their site. What advantage/profit do rev iews bring to the business? Is is that it reassures others to go purchase the product or somthing?

    asked by Anonymous
  101. physics

    Two stars, a binary star system, with a mass of m1 = 5.88E29 and m2 = 2.27E30 kg are separated by a distance of 2.55E11 m. What is the gravitational force between them?

    asked by Anonymous
  102. English

    Do commas go in parentheses as in the sentence "asking my friends to go to the restaurant (and bring food home), I called Jenna."

    asked by Angeal
  103. math

    factor out the greatest common factor from the expression 15x^5-9x^4

    asked by tonya
  104. algebra

    If they maintain there speed, how far from each other will they be ... north at 2.5 mph and Josh walking east at 3 mph, how long will they meet

    asked by li
  105. algebra

    Thee area of the rectangle athletic field represented by the expressio 25y^2-4z^2 square meters. Write an algebriac expression to represent one possible set of dimensions(in the sense''length times width'')of the athletic field. include units with the

    asked by Liz
  106. Chemistry check answers

    HA(aq)+ H2O (l) H3O+(aq)+ A¯ (aq) Given the reaction above, which of the following will cause an increase in the pH of an equilibrium mixture? Give all answers which apply. A) add KA B) add HA C) remove A¯ D) remove HA E) none of these will affect the

    asked by Michael
  107. math

    Andrew factored the expression 54x^3-30x^2+15x as 5x(9x^2-6x+3) but when Melissa applied the distributive law and multiplied out 5x(9x^2-6x+3). she got 45x^3-30x^2+15x. thus andrew's solution does not appear to check. why is this? eplain your reasoning and

    asked by Nick
  108. Calculus Need of Urgent Assistance

    Let f(x) = x3 − 7x2. Find the point(s) on the graph of f where the tangent line is horizontal. (x, y) = I already got the smaller value, but I'm not getting the larger value right

    asked by Anonymous
  109. calculus

    f(x)=3-5x , (-1,8) find the slope of the tangent line to the graph of the function at the given point how do you figure this out?

    asked by art
  110. algebra

    Andrew factored the expression 54x^3-30x^2+15x as 5x(9x^2-6x+3) but when Melissa applied the distributive law and multiplied out 5x(9x^2-6x+3). she got 45x^3-30x^2+15x. thus andrew's solution does not appear to check. why is this? eplain your reasoning and

    asked by Crystal
  111. Minds at work

    A person that has a sevre overreation to an intense emotion might be experiencing a a. galvanic skin response b. sympathetic rebound c. suppressed emotion d. parasympathetic rebound if you relearn a song that you heard as a child, your savings score for

    asked by Kate
  112. Physics (please help)

    Two cars are drag racing, starting from rest at t = 0, on a straight and level road. Team Alpha's car produces acceleration ax = alpha t^(-1/2) ; while Team Beta's car produces acceleration ax = Beta ; for all t > 0, where alpha and beta are positive

    asked by Abi
  113. Physics please help!!

    A 86.0 kg diver falls from rest into a swimming pool from a height of 6.30 m. It takes 1.86 s for the diver to stop after entering the water. Find the magnitude of the average force exerted on the diver during that time.

    asked by Megan
  114. math

    how do you find the equation line of these ordered pairs (1/6, -1/3) and (5/6, 5)?

    asked by vicki
  115. gr.10 math

    could you please show me the steps to solve this equation?I looked at the answer in the back of our textbook but i keep getting the wrong answer. 5(2y+1)-(5y-2) answer=5y+7. thanks so much!

    asked by anon
  116. English

    Hello. I'll appreciate it if you answer my questions: 1)is it possible to say "Thousands of Egyptians conducted a meeting in Cairo" (meaning "held a protest")or is the word "meeting" something like "discussion"? 2)is it possible to use "confine" in the

    asked by Ilma
  117. Physics

    At the other end of what would come to be known as the Roman Empire, Parthian (Persian) archers were able to discourage pursuers by firing backwards from the back of a galloping horse-the famous "Parthian shot." a. If the speed of the arrow vB the

    asked by Eduardo
  118. Chemistry

    Which of the following forms a solid with non-directional covalent bonds? A) neon B) chlorine C) copper D) carbon E) selenium

    asked by Anthony
  119. trigonometry

    can you correct the rest for me please? Express each as a function of theta: a. sin (270deg + theta)= cos theta b. cos (pi + theta)= -cos theta c. tan (810 + theta)= ????? d. sin (theta - 180)= -sin theta

    asked by anon
  120. Physics

    Two waves are combined to form this standing wave equation of y(x,t) = (3 mm)sin[x/(2 m]cos[(100 rad/s)t] a. What's the amplitude of the right moving wave and left moving wave? b. What's the wavelength of the right moving wave and left moving wave? c.

    asked by Alan
  121. world history

    can you check these answers for me please. 1.Among early hunting and gathering peoples, the commonly occurring mark that looks like a "P" is thought to stand for a? a. woman b.symbol for a calender c.favored animal d.powerful male leader 2.Relative to

    asked by Jesss
  122. chemistry

    oil and water are immiscible. what does this mean? explain in terms of the structural features of their respected molecules and the forces between them.

    asked by sam
  123. physics

    what is the kinetic energy of a 200 g bullet travelling at a velocity of 400 m/s?

    asked by jessa nie
  124. Management of information systems

    Information systems cannot solve every business challenge. Identify 2-3 business issues and provide an explanation of why technology cannot be used to aid or solve them.

    asked by Sam
  125. english

    Wouldn't have reached as many people, and they wouldn't have been able to respond as quickly to criticism from the states-rights side of the debate.

    asked by kishamae
  126. Diffeq

    d/dx (x)(e^xy)(cos2x). Product rule lets me take the derivative of f(x)g(x). But three functions?

    asked by Dave
  127. geometry

    a field bounded on one side by a river is to be fenced on three sides to form a rectangular enclosure. there are 320 ft of fencing available. what should the dimensions be to have an enclosure with the maximum possible area?

    asked by anonymous
  128. Anthropology

    Use modern advertisements to show examples of gender roles and how they are changing. pls. answer by 7:00 a.m. Eastern time.

    asked by Alex L.
  129. physical science

    the influence of the magnitude of the surface area on the rate of reaction of a specific reaction using rennies tables

    asked by de kuilen
  130. math

    the length of the base of a triangle is 4 times its altitude. if the area of a triangles is 162cm2 find the altitude

    asked by annette
  131. chemistry

    I have a lot of trouble doing this chemistry exercise It says: The altitude of the lake affects the solubility of oxygen in lakes high in the alps. if the solubility of O2 from the air is 7.89 mg/L M at sea level and 25C, what is the solubility of O2 in

    asked by Tatiana
  132. biochemistery

    What are the different forms of RNA? what are their functions in the body?

    asked by Chioma
  133. math

    What is the range of the relation? {(1, 2), (2, 4), (3, 2), (4, 6)} I'm pretty sure it is {2, 4, 6).

    asked by dodo
  134. science

    Calculate the specific volume of an air-vapour mixture when the temp=30 degree Celsius, Mw=0.015 kg/kg, Pt=90kpa

    asked by cris
  135. calculus please help

    Use the four step process to find the slope of the tangent line to the graph at any point: f(x) = -1/2(x^2)

    asked by Anonymous
  136. Algebra

    In 1995, the life expectancy of males in a certain country was 64.8 years. In 1999, it was 67.2 years. Let E represent the life ecpectancy in year t and let t represent the number of years since 1995. E(t)= t+ (round to nearest tenth Use the function to

    asked by Kimi
  137. Calculus

    Find the derivative of the function f by using the rules of differentiation. f(x) = (10 x^3 + 3 x^2 + 5 x - 7)/x

    asked by Jamie
  138. science

    If air at 30 degree c Dry Bulb temp and water vapour content(Mw)=0.015kg/kg flows over a basin containing water at 10 degree C. a) what will happen to the air temp? b) what will happen to the moisture content in the air? c) what will happen to the enthalpy

    asked by cris
  139. algebra

    The area of a rectangle athletic field is represented by the expression 12y^3+48^2+24y sqaure meters. write an algebraic expression to represent one possible set of dimensions (in the same sense ''length times width'') of the athletic field. include the

    asked by Liz
  140. math

    factor the following expression completely 75x^4+35x^3-10x^2

    asked by tonya
  141. algebra

    The area of a rectangle athletic field is represented by the expression 12y^3+48y^2+24y sqaure meters. write an algebraic expression to represent one possible set of dimensions (in the same sense ''length times width'') of the athletic field. include the

    asked by Liz
  142. math

    find general solution in implicit form of differential equation dy/dx= 2(e^x-e^-x)/y^2(e^x+e^-x)^4 (y>0)

    asked by mike
  143. Economics

    How would a communist economy react to social and technological changes? What is the role of nature in a communist economy? I can't find any information on these subjects. Could someone please help me? Thanks so much

    asked by KC
  144. physics

    A person pulls a toboggan for a distance of 20.0 m along the snow with a rope directed 30.0° above the snow. The tension in the rope is 67.0 N.

    asked by Anonymous
  145. math

    You win $4 if you flip a coin twice and get tails both times. For any other outcome you get nothing. What is the expected value?

    asked by tearria
  146. science 6th grade

    I am suppose to explain how the moment magnitude and Richter scales of earthquake measurement are similar and how they are different. Can you tell me if I am correct? They are alike because they always come up with the same rating for an earthquake. They

    asked by Reed
  147. algebra

    factor completely 75x^4+35x^3-10x^2

    asked by Crystal
  148. Physics

    Two waves are combined to form this standing wave equation of y(x,t) = (3 mm)sin[x/(2 m]cos[(100 rad/s)t] a. What's the amplitude of the right moving wave and left moving wave? b. What's the wavelength of the right moving wave and left moving wave? c.

    asked by Dan
  149. Calculus 1

    Could you please explain how to find the slope using the definition of derivative of the function y=2*sqrt(x)

    asked by Em
  150. Chemistry answers

    HA(aq)+ H2O (l) H3O+(aq)+ A¯ (aq) Given the reaction above, which of the following will cause an increase in the pH of an equilibrium mixture? Give all answers which apply. A) add KA B) add HA C) remove A¯ D) remove HA E) none of these will affect the

    asked by Michael
  151. math

    an equvalent expression of 84+mn is?

    asked by Anonymous
  152. Physics

    2. On the inside of an airplane the air pressure is about 85% of the atmospheric pressure at sea-level while outside, when it is cruising, the pressure is about 25% of the sealevel atmospheric pressure. If a window is 0.46 m in diameter, what is the net

    asked by Newton
  153. English

    Can someone help me analyze this poem? I don't understand the poem From a Correct Address in a Suburb of a Major City By Helen Sorrels (1908) She wears her middle age like a cowled Gown, sleeved in it, folded high At the breast Charming, proper at

    asked by Annie
  154. Geometry

    Describe the information you need in order to calculate a segment length in a right triangle

    asked by Jonathon
  155. Chemistry Lab

    If the molecular mass for a chemical is 151.97 g/mol and the enthalpy of formation is -1128 kJ/mol, the heat change will bekJ when 10.0 g of this chemical is formed.

    asked by Shawn
  156. Medical Information management and office practice

    Please check my answers. 1.Dr. Jones used an abbreviation that no one was familiar with. What can be done to prevent this from happening in the future? A. Ask the physician to take a course on medical abbreviations. B.Designate an approved abbreviations

    asked by Nadya Crouch
  157. chemistry

    IF WE HAVE TWO SUBESTANCE(A/B)THE MELTING POINT A IS 125 AND FOR B THE M.P IS UNKNOWN,HOW COULD KNOW WE WITH HERE A/B ARE THE SAME SUB.OR DIFFRENT

    asked by Anonymous
  158. science

    if you have a 343 J of kinetic energy at the lowest point of a pendulum's swing and at the highest point has a height of 5 m what is the pendulum's mass

    asked by Lex
  159. chemistry

    IF WE HAVE TWO SUBESTANCE(A/B)THE MELTING POINT A IS 125 AND FOR B THE M.P IS UNKNOWN,HOW COULD KNOW WE WITH HERE A/B ARE THE SAME SUB.OR DIFFRENT

    asked by SORAN/IRAQ
  160. Statistics

    The lower the values of alpha - would cause exponential smoothing to respond the most slowly to forecast errors?

    asked by Mary
  161. environmental science

    How many deaths occur due to water borne disease in countries with chlorinated water systems? I have been trying to find this statistic. Can someone please give me a reference. Thank you

    asked by health
  162. physic

    The resistance of a copper wire of diameter 10mm and length 2m is 15 Ω. Determine the new resistance if i) the length is doubled and the diameter halved ii) the length increases by three fold and the diameter doubled iii) the length decreases by two fold

    asked by hans
  163. Chemistry

    Answer the following question A(g) B (g) + C(g) Kp = 2.00 Assume you placed 1.0 mole each of 'A' , 'B' , and 'C' in a container. Without actually doing the calculations explain how you would determine whether or not the system is at equilibrium, and if not

    asked by Patrick
  164. Chemistry answers

    HA(aq)+ H2O (l) H3O+(aq)+ A¯ (aq) Given the reaction above, which of the following will cause an increase in the pH of an equilibrium mixture? Give all answers which apply. A) add KA B) add HA C) remove A¯ D) remove HA E) none of these will affect the

    asked by Michael
  165. physics

    Which type of wave would be beneficial to a surfer?

    asked by Lex
  166. BUSINESS

    4 each of examples identify financial decision you have made or might have to make in the future. In the last column, tell what effect this decision may have on ur personal resources. (Personal resources include things such as money, time and health.)

    asked by Anonymous
  167. math

    what is the product of 8 and 1

    asked by Anonymous
  168. algebra

    rational expression 2y+1 y^2-y-6

    asked by ann
  169. Geometry

    Given ABCD is a square AC= BD = 4 units Ac= BD pass origin of (0,0) Find coordinates of A B C D

    asked by Matthew
  170. math

    evaluate 2/(ã1+ã2) + 2/(ã2+ã3) + 2/(ã3+ã4)... + 2/(ã8+ã9)

    asked by Nia
  171. physics

    How can you change the temperature of two objects to reach equilibrium

    asked by calous --- HELP PLEASEE!!!
  172. pre-algebra

    the length of a rectangle is 10 inches more than its width. what are the dimensions of the rectangle if its perimeter is 80 inches?

    asked by andrew
  173. algebra

    I need help with this one. Simplify 768u^8z^8/36u^2z^3

    asked by tbird
  174. Spanish

    28. ¿Vas a estudiar ahora para la clase de español o para ____ de ciencias? a. uno b. el c. la d. una C? or B.. 29. Me duele la cabeza. Creo que ______. a. necesitamos otro dentista b. debo quedarme en la cama c. busco otro médico d. me siento mejor B?

    asked by mysterychicken
  175. hcs/335

    What is the mission statement of your organization? How is this mission evidenced through the actions of the employees and in the culture of the organization?

    asked by boobi
  176. physics

    A planet with a mass of 5.67E25 kg has a radius of 3.63E7 m. How much would a 89 kg person weigh on this planet if they were standing on the surface?

    asked by Anonymous
  177. child day care management

    When properly executed, the behavior management strategy known as time-out becomes A.a positive reinforcer B. more effective then logical consequences. Ca conversation between child and adult. D. suitable punishment for misbehavior. pls help me is it D

    asked by Alex
  178. Biochemistery

    how could a test to determine if inhibition was competitive or noncompetitive

    asked by Chioma
  179. physics

    if first man has a force of 500n what is in the second. if acceleration is 2m/s^2 what should be the force of the two to maintain the acceleration.

    asked by cindy
  180. math

    The shape of the shell resembles a cone with an approximate diameter of 21 mm and an approximate height of 38 mm. What is the approximate volume of the shell? (Use 3.14 for .)

    asked by vero
  181. Physics

    You are an artillery offcer attached to Gaius Julius Caesar's Xth Legion in the Gallic War (1st C. BCE). You are responsible for a catapult, a device with a long spoonlike arm used to lob stones or pumpkins over the walls of Gallic oppida. These fortresses

    asked by Roberto
  182. Calculus

    What is the 4 step process when finding the slope of the tangent line at any given point?

    asked by Anonymous
  183. Calculus

    Find the derivative of the function f by using the rules of differentiation. f(x) = 360

    asked by Anonymous
  184. Spanish

    7. "Alberto prefiere sacudir los muebles." "Creo que no. Prefiere pasar la aspiradora." "Creo que Uds. _______." a. tiene razón b. están de acuerdo c. no están de acuerdo d. no tiene razón A? But I think it could also b C...

    asked by mysterychicken
  185. Science

    a truck that weighs 19500 kg is moving at a velocity of 17 m/s west what is the trucks momentum? My answer: 1147.05...

    asked by jo
  186. algebra B

    Using the formula, w = cr^-2, solve for r. An object weighs 100lbs. What value of C will result in r = 3963? I have another question similar, but if someone could guide me in this one, I can figure out the other one. Thanks,

    asked by Nancy
  187. chem

    Calculate the pH after 0.12 mol of NaOH is added to 1.00 L of 0.60 M HF and 1.06 M KF

    asked by michele
  188. Math

    Your friend is taking an algebra class that began after ours. Write your friend an email explaining a general strategy for factoring in a very organized way.

    asked by Caitlin
  189. chemistry lab

    what happens to Br-,SO42- and CO32- anions when its sodium salt is treated with (1) NH3 and BaCl2 and (2) HNO3 and AgNO3 solutions. Give the formulas of the products formed.

    asked by may
  190. b

    what means esophagus

    asked by b
  191. English

    Please write this. Write simile for Valentine's?I give mine teacher.Be nice!

    asked by Michaela
  192. calculus

    f(x)=3-5x , (-1,8) find the slope of the tangent line to the graph of the function at the given point

    asked by art
  193. statistics

    the correlation between two random variables X and Y is p=-0.75.it is given that X=1,2or3 with equal probability of 1/3 and Y=-1,-2or-3 with equal probability of 1/3.the covariance is equal to?i need help.i have been struggling to get the answer>

    asked by Joel
  194. business

    can someone help me with some information on each one of this. Employee Receives Either Rewards or Punishments Employee Identifies Need Employee searches for ways to satisfy these needs Employee Reassess Need Deficiencies Employee Performs Employee Selects

    asked by Denese
  195. calculus

    how did you figure that out

    asked by art
  196. Math/Trig

    Write a polynomial of the smallest degree with roots 1, -3, and 4.

    asked by CJ
  197. Science

    What is the defenition of the word dissolve?

    asked by M
  198. Organic Chemistry

    Why doesn't liquid CO2 decaffinate coffee and super critical CO2 does?

    asked by Mel
  199. math

    f(x)=2-9x find f^-1(6)

    asked by katrina
  200. Math

    I'm stuck on solving this one. If I could get some help please. -6 le x/2 - 4 lt -3

    asked by marco
  201. Gen 105

    Gen 105 wk 2 using the proper tone

    asked by Anonymous
  202. groundwater science

    For one dimensional flow, what is the flow rate in a 2.0-m long sample of clean saturated sand having a cross-sectional area of 0.05 m2, and a hydraulic conductivity value of 10-3 m/s, if the drop in head over the length of the sand sample is 0.03 m?

    asked by dan
  203. social studies

    how do a reserch papaer on marian anderson

    asked by hailey
  204. Physics

    A ball traveling in a circle with a constant speed of 8 m/s has a centripetal acceleration of 5 m.s^. What is the radius of the circle?

    asked by Tammy
  205. CRIMINOLOGY

    is a psychiatric evaluation always necessary to determine if a person exhibits antisocial behaviors? Aren't there some overt warning signs?

    asked by kathy
  206. Basic math

    Compute. 3/2 - 4 1/3 The answer I got was 4 2/1.

    asked by Martha
  207. Spanish

    20. Es viernes. Vamos a mi casa para ver E.T. en ______. a. mi videocasetera b. el cine c. el equipo de sonido d. mis fotos A? 21. Nuestro apartamentos es ________. a. grande y cómoda b. grande pero incómoda c. pequeña e incómoda d. pequeña pero

    asked by mysterychicken
  208. algebra

    x + 2 over 13 = 7 over 13 what is x

    asked by kathy
  209. geometry

    What Is The Area Of A Circle If The Radius Is 10 Inches?

    asked by Bob
  210. pre calc

    find f(x) and g(x) such that h(x)= (fog)(x) h(x)= 1/sqrt3+7

    asked by cf
  211. Physics

    You are an artillery offcer attached to Gaius Julius Caesar's Xth Legion in the Gallic War (1st C. BCE). You are responsible for a catapult, a device with a long spoonlike arm used to lob stones or pumpkins over the walls of Gallic oppida. These fortresses

    asked by Roberto
  212. Math

    Integrate (sin^2(t)+1)/(cos^4(t))dt

    asked by Buzz
  213. calculus

    Please help. i am confused on how to do this one. I keep getting arcsin(square root -cos9x) but it is wrong. The probem is F(x)= arcsin(sqtsin(9x))

    asked by nic
  214. Chemistry

    Answer the following question A(g) B g) + C(g) Kp = 2.00 Assume you placed 1.0 mole each of 'A' , 'B' , and 'C' in a container. Without actually doing the calculations explain how you would determine whether or not the system is at equilibrium, and if not

    asked by Patrick
  215. Chemistry

    Reactions can be speeded by increasing the proportion of reactant molecules which collide with proper orientation. This can be accomplished by . . . A) compressing the reactant mixture. B) heating the reactant mixture. C) addition of a catalyst. D) cooling

    asked by Michael