Questions Asked on
November 12, 2012

  1. Human Anatomy

    What does a neutrophil do? What causes allergies? What is an autoimmune disorder? Thanks in advance-- btw- I have no idea to any of them- hence why i'm asking. ♥dino♥

    asked by rawr... im a dinosaur.... rawr
  2. chemistry

    if the heat of combustion of glucose is -2808 kJ/mol, how many grams of glucose are required to supply 1650 kJ of heat?

    asked by Anonymous
  3. Match

    John's Collection: 10 coins in all 2 fewer quarters than dimes 2 quarters Q = D = N =

    asked by Lena
  4. Math

    John's Collection: 10 coins in all 2 fewer quarters than dimes 2 quarters Q = D = N =

    asked by Lena
  5. govt

    Why not simply make voting compulsory or tie voting to the receipt of government benefits?

    asked by Anonymous
  6. physics

    A tray is moved horizontally back and forth in simple harmonic motion at a frequency of f = 1.68 Hz. On this tray is an empty cup. Obtain the coefficient of static friction between the tray and the cup, given that the cup begins slipping when the amplitude

    asked by stressedstudent
  7. com sci

    A rational number is the form of a/b, where a and b are integers with b != 0. Develop and test a class for processing rational numbers. The class should have a numerator data member and a denominator data member. It should read an display all rational

    asked by Dan
  8. Public financial Management

    Your special project budget was for 1,000 hours of part-time nurses’ services at $40 per hour, for a total cost of $40,000.

    asked by yito
  9. Financial Management

    You are the nursing administrator for a medical group that expects a severe outbreak of the flu this winter. You hire additional staff to treat the patients and administer shots. Your special project budget was for 1,000 hours of part-time nurses’

    asked by yito
  10. trigonometry

    We begin by setting t=sin 18 degrees we weill think of t an an "unknown" angle and solve to get the exact value. Use a double angle formula to show that cos 36 degrees=1-2t^2

    asked by Anonymous
  11. physics

    The maximum applied force of compression that one man’s thighbone can endure without breaking is 7.6 x104 N. The minimum effective cross-sectional area of the bone is 3 x10-4 m2, its length is 0.54 m, and Young’s modulus is Y=9.4x109 N/m2. The mass of

    asked by stressedstudent
  12. Calculus I

    *Optimization problem* [I don't know how to get to the answer] Problem: You have a cylindrical can with radius 4cm and height 10cm. Inside is a marble with a radius that has to be larger than 0 but less than 4 cm (even the largest marble will fit

    asked by Ken
  13. Physics

    A string that passes over a pulley has a 0.373 kg mass attached to one end and a 0.620 kg mass attached to the other end. The pulley, which is a disk of radius 9.50 cm, has friction in its axle. What is the magnitude of the frictional torque that must be

    asked by Samantha
  14. biology

    Communication between cells,tissues and organs.What Blood component?And mode action? Can someone help me please?

    asked by marie
  15. Financial Management

    Company Information Wheel Industries is considering a three-year expansion project, Project A. The project requires an initial investment of $1.5 million. The project will use the straight-line depreciation method. The project has no salvage value. It is

    asked by Anonymous
  16. Financial Management

    The finance department of a large corporation has evaluated a possible capital project using the NPV method, the Payback Method, and the IRR method. The analysts are puzzled, since the NPV indicated rejection, but the IRR and Payback methods both indicated

    asked by Anonymous
  17. math

    f(x)=x^4-4x^3+10 Find the inflection point(s), if there are any.

    asked by Britney
  18. Math

    A card is drawn from an ordinary pack of playing cards and a person bets that it is a spade or a king.What are odds against his winning this bet?

    asked by Glare
  19. Maths

    Mrs Lim is m years old. She gave birth to her son when she was 20 years old. What will their total age be in 12 years' time?

    asked by Jae
  20. physics

    One of the new events in the 2002 Winter Olympics was the sport of skeleton (see photo). Starting at the top of a steep, icy track, a rider jumps onto a sled (known as a skeleton) and proceeds-belly down and head first-to slide down the track. The track

    asked by Donald
  21. physics

    In attempting to pass the puck to a teammate, a hockey player gives it an initial speed of 1.1 m/s. However, this speed is inadequate to compensate for the kinetic friction between the puck and the ice. As a result, the puck travels only one-half the

    asked by Donald
  22. Biology

    hi! so I have to make an experiment on heat loss & insulation and so, I did an experiment on which material insulates best against the wind of a fan--styrofoam, plastic or aluminum can. each has hot water in it but the styrofoam took the longest for the

    asked by Cara
  23. physics

    A baseball (m = 135 g) approaches a bat horizontally at a speed of 40.4 m/s (90 mi/h) and is hit straight back at a speed of 45.7 m/s (102 mi/h). If the ball is in contact with the bat for a time of 1.00 ms, what is the average force exerted on the ball by

    asked by Anonymous
  24. Biology

    Can you give me an order from 1 to 3 for the following materials, 1 being the best insulator and 3 being the poorest? styrofoam, plastic, aluminum

    asked by Cara
  25. physics

    A hockey goalie is standing on ice. Another player fires a puck (m = 0.22 kg) at the goalie with a velocity of +63 m/s (a) If the goalie catches the puck with his glove in a time of 7.0 10-3 s, what is the average force (magnitude and direction) exerted on

    asked by D
  26. Physics

    A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. The incident water stream has a velocity of +18.0 m/s, while the exiting water stream has a velocity of -18.0 m/s. The mass of water per second that strikes the

    asked by Anonymous
  27. Physics

    A student (m = 63 kg) falls freely from rest and strikes the ground. During the collision with the ground, he comes to rest in a time of 0.0120 s. The average force exerted on him by the ground is +17000. N, where the upward direction is taken to be the

    asked by Don
  28. Physics

    A mass-spring system has b/m = ω0/2, where b is the damping constant and ω0 the natural frequency. How does its amplitude A when driven at a frequency 12% above ω0 compare with its amplitude at resonance Ares at ω0?

    asked by Zach
  29. Algebra

    How does finding the square root of a number compare to finding the cube root of a number? Use the number 64 in your explanation.

    asked by Cindy
  30. alegebra and graphing

    lynn needs a truck to move some evidence out of her back yard before investigators arrive. She finds the cost C, of renting a truck is $25 per day plus $1 per mile, m. Write an equation for the cost in terms of miles driven.

    asked by Anonymous
  31. math

    how to find the greatest possible number that can be rounded off

    asked by Anonymous
  32. TRIG

    Find one numerical value for cot x/cos x = 5

    asked by TRIG HELP
  33. TRIG

    Verify cos x/1+sinx + 1+ sinx/cosx = 2sec

    asked by TRIG HELP
  34. TRIG

    (cotx + cscx(1-cosx)= SIN x

    asked by TRIG HELP
  35. TRIG

    Sinxtanx = sec x

    asked by TRIG HELP
  36. trig

    cot^2/1 + cot^2 = cos^2

    asked by TRIG HELP
  37. algebra

    A wire runs from the top of a flagpole to a point on the ground that is 9 yards from the base of the pole. The wire is 15 yards long. How many yards tall is the flagpole? (Please type ONLY the numerical answer, no extra spaces or words. Do NOT include any

    asked by Anonymous
  38. math

    1.John deposited $40,000.oo in the bank and earned simple interest of 7% per annum for 2 years. calculate the amount he will receive at the end of the 2 year period. 2. Find the simple interest on $15,000.00 invested for 4 years at 12% per annum.

    asked by Lindsay
  39. math

    Q) (Speed) Ahmed drives from Abu Dhabi to Dubai. The journey takes him 1 hour 30min and the distance covered is 130km. What is the average speed at which he was travelling (rounded to the nearest 1km/hr)?

    asked by john
  40. math

    how to use hundreds chart to answer this;(1)what % of the numbers are multiples of 3 (2)what % of the numbers are multiples of both 2 and 3 (3) what% of the numbers are factors of 100 (4)what % of the numbers are prime numbers? i really have no idea how to

    asked by wan
  41. business

    Final Global Business Plan Paper and Presentation for paraguau

    asked by rick
  42. chemistry

    describe the troubles of boilers when impure water is used

    asked by Anonymous
  43. Statistics

    Suppose a study finds that the correlation coefficient relating family income and SAT scores is r = +0.98. Which of the following are proper conclusions? I. Poverty causes low SAT scores II. Wealth causes high SAT scores III. There is a very strong

    asked by John
  44. Statistics

    Which of the following statements about the correlation coefficient r are true? I. It is not affected by changes in the measurement units of the variables. II. It is not affected by which variable is called x and which is called y. III. It is not affected

    asked by John
  45. Algebra

    A dog trainer has 64 ft of fencing that will be used to create a rectangular work area for dogs. If the trainer wants to enclose an area of 192 ft2, what will be the dimensions of the work area?

    asked by Kara
  46. Statistics

    Which, if any, of the values listed below for a correlation coefficient indicate a situation where more than half of the variation in one variable is associated with variation in the other variable? -.7 1 .3 .6 .9 I was thinking B

    asked by Mike
  47. algebra

    what is the relative maximum and minimum of the function. f(x)=x^3+6x^2-36

    asked by lee
  48. algebra

    miquel is designing shiooing boxes that are rectangular prisms the shape of one box with height h in feet has a volume defined by the function v(h)=h(h-5)(h-6) graph the function what is the maximum volume for the domian 0

    asked by lee
  49. algebra

    write a polynomial in factored form x^3-3x^2-10x

    asked by jay
  50. algebra

    use the remainder theorem to find the remainder when P(x)=x^4-9x^3-5x^2-3x+4 is divided by x+3

    asked by jay
  51. algebra

    suppose the polynomial function below represents the power generated by a wind turbine where x represents the wind speed in meters per second and y represents the kilowatts generated interpret f(10)

    asked by lee
  52. algebra

    suppose the polynomial function below represents the power generated by a wind turbine where x represents the wind speed in meters per second and y represents the kilowatts generated interpret f(10) f(x)=0.08x^3+x^2+x+0.26

    asked by lee
  53. statistics

    mean=20, standard deviation =6.Use the emperical rule to estimate the probabilty that a randomly chosen patient had to wait more than 26 min. Of 2000 patients, estimate the # of patient having to wait more than 26 mins

    asked by Anonymous
  54. surface area & volume

    How can I find the surface area and volume of a hexagonal prism if I don't know the height, only apothem and one side of the base? Thank you!

    asked by Ashley
  55. Precalculus

    what is the arccos(2)? I have tried to use the unit circle but I do not understand this :/.

    asked by George
  56. time and stress management

    To limit your telephone time at work,you can? A)ignore the messages-people with important messages will call back B)have a coworker answer the phone C)limit the coversation to work-related issues D)unplug the phone my answer is c can someone please help

    asked by susue
  57. business calculus

    X=D(p)=400-p

    asked by Michelle
  58. math

    a small business loan in the amount of 50,000 with an interest rate of 9% that compounds monthly for 7 years what would my monthly payment be

    asked by melissa
  59. Precalculus

    rewrite the following expression as an algebraic expression in x: cos(arcsin x) I have made X to be X/1 but from there I am lost.

    asked by George
  60. business calculus

    X=D(p)=400-p

    asked by Michelle
  61. math

    8x/y2*4y/7x

    asked by jennifer
  62. Math

    Mary was given an equation: 6x+22=30. She subtracted 22 from 22 and got 6x=30. What was the mistake mary made?

    asked by Nana
  63. Chemistry

    N2(g)+3H2(g) -> 2NH3(g)+ 22000 cal Consider the reaction is at equilibrium. Explain how the equilibrium is shifted when a. more N is added b. more H is added c. ammonia is removed

    asked by Liz
  64. Physics

    Three uniform thin rods, each of length L = 16 cm, form an inverted U. The vertical rods each have mass of 14 g; the horizontal rod has mass of 50 g. Where is the center of mass of the assembly (x, y)?

    asked by emma
  65. chemistry

    how many atoms of each element are present in five formula units of calcium permanganate?

    asked by rachel
  66. english

    in this paragragh at what time the action taking place?

    asked by Anonymous
  67. science

    why are some foods spicyer than others?

    asked by kira
  68. Chemistry

    What is the name of the structure and the formal charges? All unshared valence electrons are shown. :O:: | H3C-N-CH3 | CH3

    asked by Anonymous
  69. physics

    Suppose the traffic light is hung so that the tensions T1 and T2 are both equal to 80 N. Find the new angles they make with respect to the x-axis. (By symmetry, these angles will be the same.)

    asked by Keyana
  70. science

    3. Which is a model of feeding relationships? (1 point) protein building food map food web sugar molecules

    asked by aliyah
  71. principles of health and wellness

    I am trying to figure out what role the immune system plays in preventing breast cancer, is there anyone who can help me?

    asked by Katelynn
  72. College Algebra

    How do you solve 3 log(base 2)*(x-1)+ log(base 2)4=5

    asked by Hope
  73. chemistry

    To what final volume should you dilute 60.0 of a 5.20M KI solution so that 40.0 of the diluted solution contains 3.15 of KI ?

    asked by Anonymous
  74. algebra, HELP!

    9. The sides of a rectangle are increased by a scale factor of 4. The perimeter of the smaller rectangle is 20 cm. What is the perimeter of the larger rectangle? (1 point) 320 cm 80 cm 120 cm 60 cm 10. A right triangle has an area of 13 m2. The dimensions

    asked by Lilly
  75. elementary

    Hi, please help me .i don't have how to prepare that science project.how to make dolphins.how to prepare that project.can u please suggest me.

    asked by Latha
  76. algebra

    Johnny has $147 dollars in ten, five and one dollar bills. He has 38 bills. He has twice as many fives as tens. He has three more ones than fives. How many of each bill does he have?

    asked by Elise
  77. math

    n (level 0) = 1 n (level 1) = 4 n (level 2) = 13 n (level 3) = 27 what is the n level ? it means n of any level .. I need an equation, pls ?

    asked by mema
  78. Pre-calculus

    On a chicken farm, the poultry is given a healthy diet to gain weight. The chickens have to consure a minimum of 15 units of substance A and another 15 units of substance B. In the market there are only two classes of compounds: Type 1, with a compoistion

    asked by Chanaye
  79. Chemistry

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

    asked by Heather
  80. Computers

    What are Two examples of Internet Vandalism

    asked by Destiny
  81. Physics HW Help, Please

    A 76.3-kN car is travelling at 66.5 mph when the driver decides to exit the freeway by going up a ramp. After coasting 418 m along the exit ramp the car\'s speed is 27.3 mph, and it is h = 10.7 m above the freeway. What is the magnitude of the average drag

    asked by Michael
  82. Physics HW Help, Please

    seasoned mini golfer is trying to make par on a tricky hole #5. The golfer can complete the hole by hitting the ball from the flat section it lays on, up a 45° ramp launching the ball into the hole which is d = 1.60 m away from the end of the ramp. If the

    asked by Michael
  83. math

    the area of triangle wxz in the diagram below is 48 cm2. what is the perieter in centieters of triangle wxz

    asked by jerome
  84. Pre-Calculus

    How do you make one side equal to the other side? (secx/secx-tanx)=sec^2x+secxtanx

    asked by Anonymous
  85. Real Estate Finance

    A piece of land containing 30 acres sells for $5,000. At the same rate, what would 22 acres sell for?

    asked by Tavia
  86. Algebra1

    If -1

    asked by Anonymous
  87. Physics

    A chain rests on a table, and is released. 1/4th sits on the table, while the remaining 4/5ths of the length hangs before it is released. Calculate the time it takes to leave the table.

    asked by Maribel
  88. Physics

    Find the movement of a particle that moves along a straight due to the force F=-k*m*v(^2)

    asked by Maribel
  89. math

    Antoine estimates he can read one and a quarter chapter of a novel in one hour. Jenna estimates she can read three chapters of the same novel in 2 5/6 hours. Antoine read for 8 hours. Jenna read for 6 hours. Who read more chapters? Show work. Please

    asked by Cherie
  90. algebra

    can you please explain how you may have gotten the answer thanks:) The coordinates of quadrilateral VWXY are given below. Find the coordinates of its image after a dilation with the given scale factor. V(6, 2), W(–2, 4), X(–3, –2), Y(3, –5), scale

    asked by Lilly
  91. business math

    Karl Dieter earns $24,862 per year. He is paid 24 times per year and claims 5 exemptions. If $39.99 is withheld from each paycheck, at what rate is he taxed?

    asked by dillien
  92. Real Estate Finance

    The mortgage company requires a down payment of $11,500 on a $70,000 house. How much down payment would be required on a house costing $87,500?

    asked by Anonymous
  93. Math equation

    The Congress of the United States signed the Declaration of Independence in 1776. Find the difference in years between the year that the Congress signed this document and the year that you were born. I was born 2003. Is this right? y - 1776 = 2003 or 2003

    asked by Sam
  94. communication

    How does language allow self reflecting, organize perceptions, allow hypothetical thought

    asked by Barbara
  95. Physics

    F=6kt This force acts on a particle of mass "m" that moves along a line. If the particle starts from rest, determine its velocity and position at time t.

    asked by shawn
  96. Meds.. Human Anatomy?

    Suppose that a batch of controlled-release pills intended to be taken every 12 hours were accidentally manufactured without their thick coating. What would be most likely to happen to someone who took one of these pills? The medication would be absorbed

    asked by rawr... im a dinosaur.... rawr
  97. chemistry

    1. a) 50ml of water at 46.9°C were mixed with 50ml of water at 25.1°C in a calorimeter also at 25.1°C. The final temperature was 30.1°C. Assuming that neither the density of water nor its specific heat capacity change with temperature, calculate the

    asked by Cicily
  98. biology

    communication between cells,tissues and organs. IN What Blood component? What is the mode action? Can someone help me please?

    asked by marie
  99. Consumer Economics

    What are three ways teens are preserving and cleaning the environment?

    asked by Aaliyah
  100. Real Estate Finance

    Jones family spends an average of $105 on utilities every two months. How much do they spend on utilities in a ear?

    asked by Anonymous
  101. Math

    When you divide a proper fraction by an improper fraction, is the quotient less than 1,greater than 1,or equal to 1? I think it is less than one but I'm not sure

    asked by Cherie
  102. Math

    Solve the equation cos3x=1^2 where x is radian

    asked by Anonymous
  103. Finanonce

    Salesperson Wilson has an agreement with his broker that he earns $10 for every $110 he makes in sales. How much does he earn $2,200 worth of sales?

    asked by Anonymous
  104. Algebra 2

    Suppose you got $5000 from family at your high school graduation. You decide to invest it for 30 years. If you invest it at 8% in a simple interest bond, how much is it worth after 30 years?

    asked by Anonymous
  105. Math

    Solve the equation cos3x=1^2 where x is radian

    asked by Anonymous
  106. Biology

    I need to make a cell membrane model out of a tissue box. Can you help me? I need ideas and more information about it.

    asked by Adriana
  107. math

    what is 1087x12 by showing your work

    asked by trinity clack
  108. Economics

    What type of labor occurs in Kenya? What percentage of it is physical labor, mental, other? Thanks

    asked by Anonymous
  109. Real Estate Finance

    A retired air force colonel wants to buy a new home using a VA loan. He used his VA guarantee of $46,000 in 1989, when he purchased his first home. Based on a guarantee of $104,250, he will be able to use his partial eligibility to obtain a VA loan with no

    asked by Anonymous
  110. physics

    Sorting Elements: Give out bags of small, varied objects of different shapes colors, and sizes, such as seashells, beads, or rocks. Have groups of students orgasnize the shells so that similar objects are near each other, but make sure that they are

    asked by margie
  111. visual logics

    How do I write a program with three inputs rectangle heights, width, and number of rectangles

    asked by Linda
  112. History

    What do you think might happen as the size of the population in the english colonies increased

    asked by Aaliyah
  113. ACC340

    Using at least two sources in addition to the text, Write a 700- to 1,050-word paper describing how information systems are changing the various aspects of the accounting profession.

    asked by Kat
  114. math

    the election results indicate that 131.2 million Americans voted in the 2008 presidential election. this was approximately 63% of the eligible voters. how many Americans were eligible to vote in the election?

    asked by Dylan rangel
  115. statistics

    A bag contains a total of 24 white, red, and blue marbles. A student randomly selects a marble from the bag, records the color, and then returns the marble to the bag. The student repeats the process 24 times. The bar graph shows the results of the

    asked by kate
  116. physcis

    Two astronaut, as shown in the figure, each having a mass of 62.0 kg, are connected by a 12.00 m rope of negligible mass. They are isolated in space, moving in circles around the point halfway between them at a speed of 5.00 m/s. Treating the astronauts as

    asked by Anonymous
  117. ACC340

    Using at least two sources in addition to the text, Write a 700- to 1,050-word paper describing how information systems are changing the various aspects of the accounting profession. • Include a description of a variety of specific new technologies and

    asked by Anonymous
  118. physics

    A(n) 775 N man stands in the middle of a frozen pond of radius 11.2 m. He is un- able to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 1.3 kg physics textbook horizontally

    asked by John
  119. physics

    A 43.3 kg girl is standing on a 125 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless sup- porting surface. The girl begins to walk along the plank at a constant speed of 1.87 m/s to the right

    asked by John
  120. phsyics

    A war-wolf, or trebuchet, is a device used during the Middle Ages to throw rocks at castles and now sometimes used to fling pumpkins and pianos. A simple trebuchet is shown in the figure. Model it as a stiff rod of negligible mass 3.00 m long and joining

    asked by Anonymous
  121. math

    ms. fuller has 2 and 2/6 pies left over from her party. write the number of pies left over as a fraction greater than 1.

    asked by lizzie
  122. Psychology

    When people go without sleep for more than 24 hours in a row, how does their experience of sleepiness vary over time?

    asked by Anonymous
  123. Social Studies 8R help!!!!

    What were the goals of (a) the Knights of Labor? (b) the AFL? Answer (a) - ?????? Answer (b) - Unlike the Knights of Labor, the AFL supported the use of strikes to achieve its goals. The AFL collected money from its member unions. Some of it went into a

    asked by Laruen
  124. physics

    A solenoid of radius 2.30 cm has 380 turns and a length of 15.0 cm. (a) Find its inductance. (b) Find the rate at which current must change through it to produce an emf of 76.0 µV

    asked by Anonymous
  125. Data Mangement Gr. 12

    What does it mean when you have P(A|C)

    asked by West
  126. math

    what is the letter b in this expression a+b

    asked by Anonymous
  127. Calculus

    Consider an infinite series of the form (+-)3(+-)1(+-)1/3(+-)1/9(+-)1/27(+-)....(+-)1/3^n(+-)... The number 3,1, etc. are given but you will decide what the signs should be. a)Can you choose the signs to make the series diverge? B)Can you choose the signs

    asked by oci
  128. math URGENT!!!!!!!!!!!!

    a 12x12-inch square is divided into n^2 congruent squares by equally spaced lines parallel to its sides. circles are inscribed in each of the squares. find the sum of the areas of the circles. answer and please explain step by step how u got the answer!!

    asked by dan
  129. math

    what is the letter b in this expression a+b

    asked by Anonymous
  130. Math

    How do you simplify an expression like: -5x + (-2) + 3x +9

    asked by Hannah Borrum
  131. Physics Help, Please

    The figure below shows two speakers, A and B, which are emitting identical, synchronized (in-phase) sound waves at 240kHz. A person standing a point C hears a relatively loud sound. She then starts walking towards point D, and notices the sound gets

    asked by Michael
  132. history

    most republicans in the late 1800 were protestants who their party as the defender of traditional American values true or false?

    asked by Kimberly
  133. maths

    Factorise the following quadratic expressions: a) x2 + 7x + 12 b) x2 - 4x + 4 c) x2 - x – 6 and explain please

    asked by Anonymous
  134. math

    if car one is traveling at 45miles per hr in one direction. How fast is car no 2 has to go from stoped state to catch up with car one after 15 miles assuming car 2 can go from 0-60 in 5 sec.

    asked by gus
  135. math

    solve the inequality 3(2x+4)greater than and equal to 2x

    asked by Ted
  136. forensic psychology

    explain how and why the ADA is relevant to forensic psychology professionals working in the police subspecialty in the screening and selection of police officers

    asked by Renee
  137. math

    What does the math term XOR stand for in math?

    asked by Garret
  138. Physics B

    Part 1 Calculate the magnitude of the linear momentum for each of the following cases: A proton with mass 1.67×10 −27 kg moving with a speed of 5.24 × 10 6 m/s. Answer in units of kg · m/s Part 2 A 15.1 g bullet moving with a speed of 327 m/s. Answer

    asked by Mary
  139. Physics B

    Part 1 A pitcher claims he can throw a 0.167 kg baseball with as much momentum as a 2.43 g bullet moving with a speed of 87735 m/s. What must be its speed if the pitcher’s claim is valid? Answer in units of m/s Part 2 What is the kinetic energy of the

    asked by Kelsey
  140. Physics B

    A(n) 685 N man stands in the middle of a frozen pond of radius 14.6 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 1.3 kg physics textbook horizontally toward

    asked by Kelsey
  141. Physics B

    A 89.2 kg ice skater, moving at 16.1 m/s, crashes into a stationary skater of equal mass. After the collision, the two skaters move as a unit at 8.05 m/s. Suppose the average force a skater can experience without breaking a bone is 4296 N. If the impact

    asked by Mary
  142. Algebra

    3x + 7= -x - 1 -3x=x-(6-2x) 1-2x-5=4x+2 2x+3=-2x+5 I cant remember the steps to evaluate.

    asked by Sarah
  143. Math URGENT!

    2. 9X-2=34+3X 4.x/3-15=12+x 6.11+4x=7+5x 8.-7+x=-8-x 10.0.45x+25=40+0.25x

    asked by Bradley
  144. Physics B

    Part 1 A 36 kg girl is standing on a 65 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless supporting surface. The girl begins to walk along the plank at a constant speed of 1.89 m/s to the right

    asked by Sarah
  145. trig

    Solve tan2A - 2tanA = -1 for 0º≤A≤360º.

    asked by trig
  146. Physics B

    A(n) 685 N man stands in the middle of a frozen pond of radius 14.6 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 1.3 kg physics textbook horizontally toward

    asked by Kelsey
  147. Finance

    The Garcia company's bond have a face value of 1000, will mature in 10 years and carry a coupon rate of 16 percent. Assume interest payments are made semi annually. Determine the present value of the bonds cash flow if the required rate of return is 16.64

    asked by Anonymous
  148. Physics

    A driver approaches an intersection at a speed of 50km/h, when the light turns amber. The driver

    asked by ashley
  149. Math

    The value of a car after it is purchased depreciates according to the formula v(n)=28000(0.875)^n where v(n) is the car's value in the nth year since it was purchased. How much value does it lose in its fifth year? The answer is $2052 but I don't see how;

    asked by Crystal
  150. Physics

    A driver approaches an intersection at a speed of 50km/h, when the light turns amber. The driver applies brakes to get the maximum stopping force without skidding. The car has a mass of 1500kg and the force of static friction between the tires and the road

    asked by ashley
  151. math

    write a quotient that give the same anwser as 4.65 divided by .12

    asked by mackenzie
  152. Psychology

    Without education it can affect your life in many ways how???? besides not having a job

    asked by Laruen
  153. Algebra

    The booster club raised $102 in their car wash. They want to buy $18 soccer balls for the soccer team. Write and solve an inequality to find out how many soccer balls they can buy.

    asked by Zaria
  154. biology

    • What is the overall goal of photosynthesis

    asked by April
  155. Physis

    A projectile is launched with an inital velocity of 30.0m/s at an angle of 60 degrees above the horizontal. How far does it travel. Please show me how to solve this.

    asked by Sam
  156. Chem 1A

    The following reaction occurs in aqueous acid solution: NO3– +I– →IO3– +NO2 In the balanced equation, using the smallest whole-number coefficients, what is the coefficient of NO3–?

    asked by Parkin
  157. Physics HELP!!

    A lower 0.56m long leg is being exercised. It has a 48.0N weight attached to the foot and is extended at an angle θ with respect to the vertical. Consider a rotation axis at the knee. At what angle θ does the magnitude of the torque equal 14.2 N-m?

    asked by Ann
  158. Physics HELP!!

    A square, 0.74m on a side, is mounted so that it can rotate about an axis that passes through the center of the square. This axis is perpendicular to the plane of the square. A force of 26.8N lies in this plane and is applied to the square. What is the

    asked by Ann
  159. 5th Gr Math

    Mikail used 220 inches of wire to make this figure. The figure is made up of 2 indentical triangles, a 15 inch by 12 inch rectangle & a square of side 19 inches. What is the length of 1 side of each triangle if all the sides of the triangles are equal in

    asked by Ryan
  160. English 8R - Homework Check

    Last week in class we watch this movie Stand and Deliver (I hope most of you are familiar with this movie), it's base on a true story. For homework I have pick one of the following questions she gave us and write a well developed response that fully

    asked by Laruen
  161. Math

    There will be 24 people all together at george's birthday party.He wants to serve his grandmother's special fruit punch. His grandmother lives in England, where they use metric measurements in cooking. This is her recipe. Grandmothers fruit punch - serves

    asked by Caleb
  162. English 8R - Homework Check - Part 2

    Here's the second one: Please check to see if there any grammar errors and if it's good. BTW ---- If you NEVER heard of the movie Google it and read about it on Wikipedia. Urban Unit 2012 - Stand and Deliver Response Would you be willing to give up your

    asked by Laruen
  163. Physics ~!!!!!!!

    A man of mass 76.1kg stands on a scaffold supported by a vertical rope at each end. The scaffold has a mass of 23.9kg and is 3.0m long. Suppose the man stands to the right from the middle of the scaffold that is a distance one sixth of the length of the

    asked by joane
  164. English 9

    I am reading short stories right now in english. My teacher has gave me a question for this story: what are 2 main types of conflict in the story? explain the source of each type. conflist= oppostion of 2 forces ex: character vs character character vs

    asked by Jules
  165. Finance

    The Garcia company's bond have a face value of 1000, will mature in 10 years and carry a coupon rate of 16 percent. Assume interest payments are made semi annually. Determine the present value of the bonds cash flow if the required rate of return is 16.64

    asked by Anonymous
  166. Social Studies

    Lake Superior is the ____ of the Great Lakes at 1333 feet

    asked by Jerald
  167. Calculus

    Find a cubic function f(x) = ax^3 + bx^2 + cx + d that has a local maximum value of 3 at x = −2 and a local minimum value of 0 at x = 1.

    asked by Benjamin
  168. Health 8R

    what's high doses, medium doses, and low doses???? this is alcohol related

    asked by Laruen
  169. Social Studies

    Ships from the Great Lakes travel the St Lawrence river to what ocean? Answer these questions with true or false The five great lakes are large enough to be called inland seas False? The great lakes form north americas most important waterway true? The

    asked by Jerald
  170. math

    26 2/3 - 1 5/6 Is it 24 3/6?

    asked by Jerald
  171. Physics HELP!!

    Three masses are connected by massless rigid rods. Rods AC and CB have length l= 44.8cm. If massA=280.0g, massB=386.0g, and massC=739.0g, what are the coordinates of the center of mass? (Enter your answer for the x coordinate first, followed by the y

    asked by joane
  172. Physics!!

    An athlete at the gym holds a 5.54kg steel ball in his hand. His arm is 80.4cm long and has a mass of 4.26kg. What is the magnitude of the torque about his shoulder if he holds his arm straight out to his side, parallel to the floor? b).What is the

    asked by joane
  173. Physics !>:(

    Four masses are connected by 27.1cm long, massless, rigid rods. If massA=237.0g, massB=511.0g, massC=257.0g, and massD=517.0g, what are the coordinates of the center of mass if the origin is located at mass A? (Enter your x coordinate first followed by the

    asked by moore
  174. Physics HELP!! pleasee

    A uniform plank of length 5.0 m and weight 231N rests horizontally on two supports, with d = 1.34m of the plank hanging over the right support. To what distance, x, can a person who weighs 477N walk on the overhanging part of the plank before it just

    asked by sarah
  175. Social Studies

    Lake Huron is the northernmost Great Lake False? Lake Ontario is the closest Great lake to ottawa canada True?

    asked by Jerald
  176. English- Hamlet

    I want to know what this line mean in hamlet: but break my heart for i must hold my tongue why do Hamlet not want to share his feelings with anyone?

    asked by Mohammad
  177. Physics

    A hiker who weighs 834N, is strolling through the woods and crosses a small horizontal bridge. The bridge is uniform, weighs 3520N, and rests on two concrete supports at each end. He stops one-fifth of the way along the bridge. What is the magnitude of the

    asked by sarah
  178. physics

    A 43.3 kg girl is standing on a 125 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless sup- porting surface. The girl begins to walk along the plank at a constant speed of 1.87 m/s to the right

    asked by John
  179. general politic question

    do you agree that television has negatively impacted politics and voters?

    asked by Anonymous
  180. English- Hamlet

    I writing a character analysis on Hamlet and i just need few notes what be all his conflicts? he have one with his uncle who killed his dad, his mom. what be his flaws? his indecisions strengths? not stupid, impulsive state of mind? depressed attitudes and

    asked by Mohammad
  181. Analytic Algebra

    Verify your results of the 2 linear equations by graphing in the desired graphing program and paste the graph in your assignment document (edit/copy image). 35x + 50y = 2220 x + y = 51 y = 29 x = 22

    asked by BJ
  182. books

    Reread the nightmare scene near the end of The Night Thoreau Spent in Jail and describe the main characters and primary events in Henry’s nightmare. Also, discuss this scene in particular, and the play in general, as a work of protest against war itself.

    asked by lee
  183. Education

    Which of the following statements about the field of child development is correct? A. It’s devoted to understanding human constancy and change over the lifespan. B. It’s part of a larger, interdisciplinary field known as developmental science. C. It

    asked by Ri
  184. Math

    A taxi charges 414 for a 7-mile trip. How much will the taxi charge for 16-mile trip?

    asked by Sam
  185. calculus

    evaluate the integral I= ∫(0,∏/4) ((5-3e^(-tanx))/(cos^(2)x))dx

    asked by peyton
  186. English 9 MS. SUE

    i still need help: the conflict is character vs charcater how would i say what caused it?

    asked by Jules
  187. Algebra 2

    factor b^n+5-b^5

    asked by Marilu
  188. Chemistry

    A 3.80 L cylinder contains 6.83 g of methane, CH4, at a pressure of 3320 mmHg. What is the temp. Of the gas? I mainly have problems being able to tell which gas law equation I need to use when asked these types of questions and then being able to rearrange

    asked by Sarah
  189. Social Studies

    Lake Michigan and Lake Huron have the same surface elevation of ___ feet 577? The ___ Channel connects Lake Huron Lake St Clair and Lake Erie South? Niagara Falls is between Lake Erie and Lake __ Ontario? Lake Ontario is connected to the St Lawrence Seaway

    asked by Jerald
  190. Physics Lab Question, Help Please

    Two speakers, A and B, are emitting identical, synchronized (in-phase) sound waves at 240kHz. A person standing a point C hears a relatively loud sound. She then starts walking towards point D, and notices the sound gets quieter, reaching a minimum when

    asked by Kevin
  191. maths

    5/8 of a class is girls what is the percentage of boys[ b] if the class has 32 student how many are boys

    asked by jelaniegabrael
  192. Education

    Dr. Muse, a sociocultural theorist, speculates that children's ability to reminisce about the past can be promoted through adult teaching. This is an example of a A. Theory B. Research Question C. Hypothesis D. Research method I have read my book, but

    asked by Ri
  193. Math

    There was an error... A tax charges $14 for a 7-mile trip. How much will the taxi charge for a 16-mile trip?

    asked by Sam
  194. Algebra 2

    Factor a^(5n)+a^(2n)

    asked by Marilu
  195. geography

    Can you check my answers please? 1. What Russian peninsula is located between the Bering Sea and the Sea of Okhotsk? Kamchatka Peninsula 2. How many degrees of longitude circle the Earth? 360 degrees of longitude 3. What continents are included in the

    asked by Reed
  196. chemistry - equilibrium Help

    you observed that very little corrosion occurred on the nail immersed in NaOH(aq) solution. This observation is difficult to explain from an electrochemistry perspective since electrochemistry principles predict a spontaneous reaction that should cause

    asked by Tara
  197. Physics

    Two long straight wires are perpendicular to the page and located at distances d1 = 2 cm and d2 = 3.5 cm from the origin. Wire 1 carries current 5 A out of the page. If the net magnetic field due to the two currents is at an angle of 45 degrees to the

    asked by Jasmine
  198. science

    How would your results have differed if you had over-titrated, i.e. added NaOH beyond the endpoint?

    asked by nicki
  199. Calculus

    A spherical ball is being filled with air. When the radius r=9cm, the radius is increasing at a rate 4 cm/s. How fast is the volume changing at this time (leave your answer approximate)?

    asked by Jax
  200. science

    What are two organisms interacting with abiotic factors in the mono lake ecosystem?

    asked by Jessica
  201. algebra

    a small business loan in the amount of 50,000 need to interest rate of 9% that compounds monthly for 7 years. What is the payment for 7 years, need formula for this. And what is the balance of the loan at the end of the 1st year? Show the formula used for

    asked by Becky
  202. Chemistry

    Chemical Kinetics Lab - Ascorbic Acid Reduction of Iron (III) The object of this experiment was to determine a rate law and a rate constant. The reaction that was studied was: 2 Fe(CN)6 ^-3 + C6H8O6 = 2 Fe(CN)6 ^-4 + C6H8O6 + 2H ^+ Summary of obtained

    asked by Amy
  203. Physics

    A bicyclist of mass 65 kg stands on pedal. The crank is .170 m long and makes a 45 angle with the vertical. The crank is attached to the chain wheel which is 9.70 cm. What force must the chain exert to keep the wheel from turning?

    asked by Angel
  204. pucblis opinion

    why do you disagree that television has negatively impacted politics and voters?

    asked by Anonymous
  205. Algebra 2

    According to the US Census Bureau, the population of the United States has been growing at an average rate of approximately 2% per year. The census is taken every 10 years, and the population in 1980 was estimated at 226 million people. *If the rate of

    asked by Anonymous
  206. Physics

    A ski slope drops at an angle of 24 degrees with respect to the horizontal and is 500 m long. A 60 kg skier skis down from the top to the bottom of the slope. A.) Determine the change in gravitational potential energy of the skier+earth system. b.) If 20%

    asked by Iza
  207. Algebra

    $9500 is invested part of it at 12% and part of it at 7%. For a certain year the total yield is $960.00. How much was invested at each rate? Please show work

    asked by Kia
  208. Chemistry

    Calculate the enthalpy of combustion for acetic acid using standard enthalpies of formation.

    asked by Diana
  209. finance

    How does an investor earn more than the return generated by the tangency portfolio and still stay on the security market line? a. Borrow at the risk free rate and invest in the tangency portfolio. b. Add high risk/return assets to the portfolio. c. Adjust

    asked by anonymous
  210. business

    Find three examples of lessons from the front line that are evident in the Nestlé case. How could these issues be overcome?

    asked by Doc
  211. Algebra 2

    Find all intergers "K" such that the trinomial can be factored over the intergers: x^(2)+kx+8

    asked by Marilu
  212. Physics

    A street lamp weighs 160 N. It is supportedequally by two wires that form an angle of 119 with each other. What is the tension of each of these wires? Answer in units of N

    asked by Sarah
  213. Math

    Lucita was given a rectangular piece of plastic tile shaped in a rectangle. What is the perimeter of the piece of tile in inches? It's width is 2 1/5 in and its height is 5 1/3in A.14 1/2 B.14 4/15 C.15 D.15 1/15 C?

    asked by Jerald
  214. ss

    1. How were things done before the invention was made? How did the invention change how people did things?

    asked by Anonymous
  215. 5th Grade Math

    Need to show my work for the following: 646,505,712,103 divded by 72. Am having such a hard time please help.

    asked by Ryan
  216. Chemistry

    A solution is prepared by dissolving 50.0 g of pure HC2H3O2 and 20.0 g of NaC2H3O2 in 975 mL of solution (the final volume). what is the ph? What would the pH of the solution be if 50.0 mL of 0.900 M NaOH were added? What would the pH be if 30.0 mL of 0.30

    asked by Bella
  217. English

    Poland received top priority on Adolf Hitler's (agenda maze) of military conquests in the fall of 1939 agenda? Students must take many required courses but they also have a little ( oracle leeway) to choose courses that they find especially interesting

    asked by Jerald
  218. physics

    an arrow was shot at a suspended clay target. the original KE the arrow was shot with was 2.0 J. the final KE from the arrow-target collision was 0.2 J. What happened to the original KE of the arrow? Give at least four possible ways in which this KE could

    asked by mary
  219. Physics

    In New Hampshire the average horizontal component of Earth's magnetic field in 1912 was 16 uT, and the average inclination or "dip" was 73 degrees. What was the corresponding mag-nitude of Earth's magnetic field?

    asked by Michelle
  220. algebra

    the speed of train A is 8 mph slower than the speed of train B. Train A travels 220 miles in the same time it takes train B to travel 260 miles. Find the speed of both trains. Speed of train A = Speed of train B =

    asked by pam
  221. Physics

    Mary weighs 459 N and she walks down a flight of stairs to a level 4.7 m below her starting point. What is the change in Mary’s potential energy?

    asked by Ash
  222. Physics Intro

    A roller coaster has a vertical drop of height 66 m and then is followed by a oop. It starts as a steep slope 75 degrees to the horizontal and then enters into a circular path of radius R. In order to stay below 4 tims the force of gravity at the bottom of

    asked by Physics Help Please
  223. algebra

    using the rational root theorem to list all possible rational roots of the polynomial equation x^3-x^2-x-3=0 possible answers -3,-1,1,3 1,3 -33 no roots

    asked by jayson
  224. algebra

    find a third degree polynomial equation with coefficients that has roots -4 and 6+i possible answers x^3-8x^2-11x+148=0 x^3-8x^2-12x+37=0 x^3-12x^2+37x=0 x^3-8x^2-11x=0

    asked by jayson
  225. Physics Help, Please

    Two speakers, A and B, are emitting identical, synchronized (in-phase) sound waves at 240kHz. A person standing a point C hears a relatively loud sound. She then starts walking towards point D, and notices the sound gets quieter, reaching a minimum when

    asked by Michael
  226. algebra

    What does Descartes Rule of Signs tell you about the real roots of the polynomial -2x^3+3x^3-5x-2=0 possible answers one positive root either 2 or 0 neg 2 or 0 pos and 2 or 0 neg one pos and one neg either 2 or 0 pos and one neg

    asked by jayson
  227. Physics

    A cable lifts a 1060-kg elevator at a constant velocity for a distance of 39 m. What is the work done by each of the following?

    asked by Don
  228. college chemistry

    How many milliliters of a 9.0\% ({\rm v/v}) propyl alcohol solution would you need to obtain 4.0{\rm mL} of propyl alcohol

    asked by chloe shaw
  229. algebra

    my scenario, to start a small business you will need a loan of $50.000 to purchase the restaurant. The bank interest rate 9% that compounds monthly for 7 years. What is the monthly payment for this loan, what is the fomula that you will use and the values

    asked by Becky
  230. Math

    Without multiply how many decimals places r in the product of 4.97 and 3.456?

    asked by Joe
  231. Math

    Please help me understand this question, thanks! 10. Write the slope-intercept form of an equation of the line perpendicular to the line in Exercise 7 with a y-intercept of -3. 7. (4, -9), (-3, 2)

    asked by Emma
  232. Physics

    A Jaguar XK8 convertible has an eight-cylinder engine. At the beginning of its compression stroke, one of the cylinders contains 499 cm ^ 3 of air at atmospheric pressure (1.01\times 10^5 Pa}) and a temperature of 27.0 degrees C. At the end of the stroke,

    asked by Natalie
  233. Math

    Ricky wrote the following to show that his sister's age is 6 yrs. less than 3 times his age. Explain what he did wrong. Give the correct expression Let a stand for my age My sister's age a/3-6

    asked by Lisa
  234. Physics

    A ball is released from rest 5.1 metre above a 26.0 metre tank of water. In the water the ball experiences a bouyant force of 53 N and takes 4.70 seconds from the time it is released to reach the bottom of the tank. What is the mass of the ball?

    asked by Montana
  235. Chemistry

    7 grams of chloride was dissolved in water. 20 ml of lead(II)nitrate was used to completely precipitate all chloride (assume atomic mass of 35g/mol). What is the molarity of the Lead(II) Nitrate solution.

    asked by Luke
  236. Chemistry

    7 grams of chloride was dissolved in water. 20 ml of lead(II)nitrate was used to completely precipitate all chloride (assume atomic mass of 35g/mol). What is the molarity of the Lead(II) Nitrate solution.

    asked by Luke
  237. physics

    A 2,000-kg car moving east at 10.0 m/s collides with a 3,000-kg car moving north. The cars stick together and move as a unit after the collision, at an angle of 39.0° north of east and at a speed of 5.15 m/s. Find the speed of the 3,000-kg car before the

    asked by Anonymous
  238. English

    In her graphic description of the most gruesome scenes in the horror film Maria left out none of the (amiable gory) details gory? After all the deductions had been made from my (gross limber) salary the sum that remained seemed pitifully small gross? Many

    asked by Jerald
  239. physics

    What is the pressure inside a 33.1 L container holding 109.1 kg of argon gas at 399 K?

    asked by Ericka
  240. Math

    The question is simply and answer in standard form 3x2(that is x squared)-2x+1+x2(xsquared)+2x-9 so I made it 3xsquared+xsquared=4xsaqured -2x+2x=0 the answer is: 4xsquared-(-8)=4xsquared+8 Then it asks the type of polynomial? I thought it was binomial Are

    asked by B6
  241. Math - urgent

    2. A technician has prepared three solutions from a 600 mL stock solution. • In preparing the first solution ½ of the original volume of the stock solution was used. • The second solution required ¼ of the remaining stock solution. • Preparation of

    asked by anna
  242. Chemistry

    1.) Hydrogen fluoride (HF) is a weak acid, which when dissolved in water reacts slightly by the equation: HF(g) + H2O(l) = H3O^+(aq) + F^-(aq). Predict the direction of shift of the equilibrium that occurs if some NaOH is added to the solution. Explain -My

    asked by Amy
  243. Math

    I have the fraction 1/6. I need to express it as a decimal, fraction expressed with denominator 100 and percentage. Is it correct to have 0.16666; 16.66/100 and 16.66%?

    asked by anna
  244. Science

    I have been thinking of something to do for my schools science fair for weeks and my teacher keeps telling me that i can't do my idea because its too easy for an honors student. I'm all out of ideas and I need help! Please!

    asked by Julia
  245. statistics

    Use the multiple regression equation to predict a person's salary. Assume that the variable A is the number of years of college. Assume that the variable B is the number of years of experience. Suppose the person has 7 years of college and 3 years of

    asked by jassi
  246. Education

    In studies involving children, the ____ should have the final word in deciding whether they should participate. A. Children B. Researchers C. Therapists D. Parents I think it is either B or D. I am conflicted because parents would have already agreed to

    asked by Ri
  247. English

    Word bank agenda amiable befuddle blight boisterous clarity compliant conserve debut gory gross induce leeway limber maze oracle partisan reimburse vacate vagabond Why do you always ask me whats going to happen? Im no ___ oracle? The crowd is so ____ that

    asked by Jerald
  248. Math

    I form a 3-digit number at random from the digits 1-9. What is the probability that my number has no repeated digits? All three digits the same? Exactly one repeated digit?

    asked by Kay
  249. Chemistry

    Naoh (aq) + HCl (aq) --> NaCl (aq) + H2O (l) Using the dT determined in part 1, calculate the heat capacity of the calorimeter. Enthalpy of reaction= -58.3 kj/mol, Cs (NaCl = 3.91j/g C)density of 1 M NaCl = 1.037g/mL. dT= 12.88 degrees Celcius.

    asked by Annie
  250. Math

    Lucita was given a rectangular piece of plastic tile shaped in a rectangle. What is the perimeter of the piece of tile in inches? It's width is 2 1/5 in and its height is 5 1/3in A.14 1/2 B.14 4/15 C.15 D.15 1/15 My answer I got was 14 16/15 what do I do

    asked by Jerald
  251. Physics

    How much energy is released by 10 kg of liquid silver at 961°C as it cools to solid silver at 20°C?

    asked by Anonymous
  252. Chemistry

    Naoh (aq) + HCl (aq) --> NaCl (aq) + H2O (l) Using the dT determined in part 1, calculate the heat capacity of the calorimeter. Enthalpy of reaction= -58.3 kj/mol, Cs (NaCl = 3.91j/g C)density of 1 M NaCl = 1.037g/mL. dT= 12.88 degrees Celcius.50 mL of

    asked by Annie
  253. Physics

    How much heat is necessary to raise the temperature of 3,439 grams of lead, from 20°C solid lead to all liquid at 327°C?

    asked by Anonymous
  254. Physics

    A hot steam burn is worse than boiling water burn: (a) If 4 mL of 100°C hot steam condenses on your arm, how much energy is released as it condenses and cools to human body temperature of 37°C? (b) If 4 mL of 100°C hot water spills on your arm, how much

    asked by Anonymous
  255. college algebra--need help Please!!!

    I need to find the vertex and axis of symmetry of the folowing quadratic function. Can someone PLEASE help me!! y= -x^2-6x

    asked by ladybug
  256. Math

    A 10-oz bottle of juice costs $1.49. A 30-oz bottle cost $4.25. Which is the better buy?

    asked by Tiffany
  257. calculus

    Wiley jumps straight up in the air from the edge of a cliff so that when he comes down he falls off the cliff. The cliff is 40 feet off the ground. His height t seconds after he jumps is s= -16t2 + 12t + 40.What is the maximum height? What is his maximum

    asked by Martha
  258. Math

    A store sells a pack of 10 baseball cards for $4.95 or five 10-packs for $49.95. Which would be the better buy?

    asked by Tiffany
  259. math

    A spherical ball is being filled with air. When the radius r=7cm, the radius is increasing at a rate 2 cm/s. How fast is the volume changing at this time (leave your answer approximate)?

    asked by Rav
  260. Wnglish

    Word bank agenda amiable befuddle blight boisterous clarity compliant conserve debut gory gross induce leeway limber maze oracle partisan reimburse vacate vagabond For years his restless spirit led him to wander the highways and byways of this great land

    asked by Jerald
  261. 7th grade English Ms. Sue ASAP please

    Questions 1 and 2 correspond to “Amigo Brothers.” Question 4 corresponds to "Friendships and Peer Pressure." 1. How do Antonio and Felix feel about each other after their fight? (1 point) Felix is angry with Antonio for injuring his eye. Antonio is

    asked by Delilah
  262. 7th grade language arts only 1 question

    5. A synonym for the word nimble is _____. (1 point) lively secret damaging weak Isn't the answer "lively", Ms. Sue?

    asked by Delilah
  263. 7th grade math

    The question is simplify -9=1(36divided by 2 x3-4) I did -9+1(18x3-4) _9+1(54-4) -9=1(50) -9+50 41 Is this correct I did this with a friend and we both got different answers. Maybe I di the wrong order of operation?

    asked by EN
  264. create an input/output

    Please show me how to do e+7=f in an e is FOR input and f =output. Explain how to do it

    asked by norma
  265. college algebra

    John invests $2500 in an account that pays a rate r compounded annually. If after 2 years the total interest earned is $650, find the approximate rate of interest

    asked by Anonymous
  266. Chemistry

    Calculate the molar enthalpy for the following reaction. HCl(aq) + NH3 (aq) --> NH4Cl (aq). HCl = 50 ml (2.00M) NH3 = 50 ml (2.05 M) Delta T = 9.28 degrees Celsius. Ccal = 28.9J/g degrees celcius.

    asked by Emma
  267. Physics

    A 0.069-kg arrow is fired horizontally. The bowstring exerts an average force of 65 N on the arrow over a distance of 0.95 m. With what speed does the arrow leave the bow?

    asked by Don
  268. physics charges. please help!

    A charge Q = +4.5 uC is located at the origin and is fixed so that it cannot move. A small object with mass m = 2.0 g and charge q = +8.0 uC is released from rest at point A on the x-axis at x = 2.0 cm. The small object moves without friction along the

    asked by Matt
  269. Chromosones.. idk what else

    What happens if a baby has two Y chromosomes?

    asked by rawr... im a dinosaur.... rawr
  270. chemistry

    how many atoms are in a sample of 175 g of sodium (Na)? 4.58 x 1024 or 1.42 x 1027?

    asked by Anonymous
  271. Physics

    A 7410-kg satellite has an elliptical orbit, as in the figure. The point on the orbit that is farthest from the earth is called the apogee and is at the far right side of the drawing. The point on the orbit that is closest to the earth is called the

    asked by Anonymous
  272. History

    Why was Wilbert Rideau denied due process and why was it so important?

    asked by Anonymous
  273. Physics

    A 57.5-kg skateboarder starts out with a speed of 1.80 m/s. He does +80.0 J of work on himself by pushing with his feet against the ground. In addition, friction does -265 J of work on him. In both cases, the forces doing the work are nonconservative. The

    asked by Anonymous
  274. Economics

    Two-Part Tariff Problem Suppose that each of a firm’s customers has the following demand curve: P = 20 – 2Q. Suppose also that the firm’s total cost function is TC = 8Q. The firm is considering three pricing strategies. Strategy 1: A single per unit

    asked by Leonardo Yang
  275. Economics

    You are the manager of a firm that sells CD players and DVD players. You work in Buffalo, New York and this is the middle of winter. So the people that live within walking distance are the only customers you might get, and there are no other stores nearby.

    asked by Leonardo Yang
  276. physics

    A dart gun is fired while being held horizontally at a height of 1.19 m above ground level, and at rest relative to the ground. The dart from the gun travels a horizontal distance of 3.33 m. A child holds the same gun in a horizontal position while

    asked by gracie
  277. Economics

    For each of the following products, write a few sentences answering the following questions: • Is price discrimination of any sort feasible? • If price discrimination is feasible, which of these pricing approaches would you consider using: market

    asked by Leonardo Yang
  278. chemistry

    If 8.00g of methane is burned with 6.00g of oxygen. How much methane,oxygen,carbon dioxide,and water remain after the reaction is complete in grams?

    asked by DEE
  279. math

    Suppose we pump water into an inverted right-circular cone tank at the rate of 6 cubic feet per minute. The tank has the height 9 ft and radius on the top is 8 ft. What is the rate at which the water level is rising when the water is 3 ft deep? Leave the

    asked by Ravinder
  280. Fractions

    A technician has prepared three solutions from a 600 mL stock solution. • In preparing the first solution ½ of the original volume of the stock solution was used. • The second solution required ¼ of the remaining stock solution. • Preparation of

    asked by anna
  281. physics

    A dart gun is fired while being held horizontally at a height of 1.19 m above ground level, and at rest relative to the ground. The dart from the gun travels a horizontal distance of 3.33 m. A child holds the same gun in a horizontal position while

    asked by gracie
  282. Physics

    The skateboarder in the drawing starts down the left side of the ramp with an initial speed of 5.4 m/s. If nonconservative forces, such as kinetic friction and air resistance, are negligible, what would be the height h of the highest point reached by the

    asked by D
  283. math

    how do I write the equation for fifteen decreased by twice n equals 13?

    asked by karen
  284. Math

    How do I begin to simplify this? 3x/(4x-5y)=6ay-14b

    asked by Tim