Questions Asked on
July 25, 2013

  1. chemistry

    a 5 g mixture of natural gas containing ch4 and c2h4 was burnt in excess of oxygen yielding 14.5 g of co2 and h2o.What is the weight of ch4 and co2 in the mixture

    asked by sim
  2. government

    When a trial has not jury but rather only a judge hearing and deciding the case, this is called a _______________________. (Like Judge Judy)

    asked by Noami
  3. physics

    Two bars of identical mass are at 30 °C. One is made from glass and the other from another substance. The specific heat capacity of glass is 840 J/(kg · C°). When identical amounts of heat are supplied to each, the glass bar reaches a temperature of 95

    asked by ODU
  4. math

    an object has a mass of 1285 g. deermine the weight of the object in newtons.

    asked by yvonne gray
  5. physics

    A cable is lifting a construction worker and a crate, as the drawing shows. The weights of the worker and crate are 833 N and 1380 N, respectively. The acceleration of the cable is 0.620 m/s2, upward. What is the tension in the cable (a) below the worker

    asked by tcc
  6. physics

    A helicopter flies over the arctic ice pack at a constant altitude, towing an airborne 112-kg laser sensor which measures the thickness of the ice (see the drawing). The helicopter and the sensor move only in the horizontal direction and have a horizontal

    asked by ODU
  7. physics

    A baseball (m = 148 g) approaches a bat horizontally at a speed of 43.8 m/s (98.0 mi/h) and is hit straight back at a speed of 48.4 m/s (108 mi/h). If the ball is in contact with the bat for a time of 1.08 ms, what is the average force exerted on the ball

    asked by tcc
  8. physics

    A mass m = 0.068 kg of benzene vapor (Lv = 3.94x105 J/kg) at its boiling point of 80.1°C is to be condensed by mixing with water at 50.0°C. What is the minimum mass of water required to condense all of the benzene vapor? Assume the mixing and

    asked by ODU
  9. Calculus

    Find the Laplace transform of: f(t)=t-2e^(3t)

    asked by Sara
  10. physics

    Concrete sidewalks are always laid in sections, with gaps between each section. For example, the drawing shows three identical 2.4-m sections, the outer two of which are against immovable walls. The two identical gaps between the sections are provided so

    asked by justin
  11. math

    Given Q(4;1),T(p;3) and length QT=root of 8 units ,determine the value of p

    asked by perfect
  12. physics

    An aluminum can is filled to the brim with a liquid. The can and the liquid are heated so their temperatures change by the same amount. The can’s initial volume at 8 °C is 4.8 × 10-4 m3. The coefficient of volume expansion for aluminum is 69 × 10-6

    asked by justin
  13. psychology

    26. Emily and her mother have entered a new place. There are toys on the floor to play with, but no one else is in the room. After a few months on her mothers lap, Emily begins to move toward the toys and is soon playing happily while her mother reads a

    asked by Katherine
  14. Maths

    On Saturday Derek picked pears from 32 trees. His picked average of 17 pears per tree. Sunday he picked more pears averaging 12 pears per tree. Over the whole weekend he picked an average of 14 pears per tree. How many trees did Derek pick from on Sunday?

    asked by Melody
  15. physics

    A steel section of the Alaskan pipeline had a length of 65 m and a temperature of 22° C when it was installed. What is its change in length when the temperature drops to a frigid -37° C?

    asked by Daniel
  16. Calculus-HELP!!!

    Find the Laplace transform of: f(t) = cos^(2)(2t)

    asked by Elyse
  17. Psychology

    19. If Paul and Rita are exposed to erotic photographs of the opposite sex, it can be expected that _______________. A. Rita will report significantly less arousal than Paul B. Paul will report significantly less arousal than Rita C. the amygdale in Paul's

    asked by Katherine
  18. psychology

    critical thinking involves being able to

    asked by meka
  19. medical billing

    8 year old male hemophiliac is admitted with acute blood loss anemia following uncontrolled bleeding. he was given 4 units of packed red blood cells via the peripheral vein. while in the hospital he also received his regular preventive infusion fo clotting

    asked by Anonymous
  20. statistics

    The scores for standardized test are normally distributed with a mean of 300 and standard deviation of 39. If the test is given to 700 students, how many are expected to have scores between 300 and 378.

    asked by melissa
  21. physics

    Two balls are approaching each other head-on. Their velocities are +11.9 and -10.5 m/s. Determine the velocity of the center of mass of the two balls if (a) they have the same mass and (b) if the mass of one ball (v = 11.9 m/s) is twice the mass of the

    asked by tcc
  22. general physics

    The drawing shows box 1 resting on a table, with box 2 resting on top of box 1. A massless rope passes over a massless, frictionless pulley. One end of the rope is connected to box 2 and the other end is connected to box 3. The weights of the three boxes

    asked by ODU
  23. physics

    A jet plane is flying with a constant speed along a straight line, at an angle of 30.0° above the horizontal, as shown in part (a) of the drawing. The plane has a weight of magnitude 87500 N, and its engines provide a forward thrust . In addition, the

    asked by ODU
  24. Physics

    A balloon has a volume of 1000 m3 and a mass of 500 kg when empty. When full of helium, what is the maximum mass it can lift off the ground? The density of helium is 0.18 kg/m3 and the density of air is 1.29kg/m3.

    asked by Trent Joseph
  25. Chemistry

    Write the formula of CH3NH+3 conjugate base. and Indicate whether the conjugate base of CH3NH+3 is a strong base, a weak base, or a species with negligible basicity.

    asked by Shaun
  26. physics

    (a) How much heat (J) flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 18°C water in reaching equilibrium? (b) What is the change(J/K) in entropy due to this heat transfer? (c) How much work (J) is made unavailable,

    asked by Justin
  27. civics

    According to the Declaration of Independence, the power of the government is based on

    asked by Anonymous
  28. geography

    Compare and contrast folded mountains to volcanic mountains. How they are alike? How they are different? i got some of it.. Similarities: Both were probably formed from convergent plate boundaries. Difference: Volcanic Mountains - are mountains that form

    asked by leena
  29. mathematics ,analytical ge0metry

    Determine the length of the line segment between the following points. T(2x;y-2) and U(3x+1;y-2)

    asked by Owami Tubatse
  30. economics

    what are the costs and consequences of providing the subsidies and welfare?

    asked by zikhona
  31. Math

    if an integer is added to its square, the units' digit of this sum could be....? 1 2 3 4 5

    asked by Anon
  32. math

    One number is 5 times another. Write an expression for the sum of their reciprocals. Then simplify the expression. (Use x for the variable.)

    asked by jackie
  33. government..

    what is the significance of Massachusetts v environmental protection agency(2007)?

    asked by Noami
  34. general physics

    The lob in tennis is an effective tactic when your opponent is near the net. It consists of lofting the ball over his head, forcing him to move quickly away from the net (see the drawing). Suppose that you loft the ball with an initial speed of 15.0 m/s at

    asked by ODU
  35. Math

    Four carpenters each built an average of 42 chairs last week. If no chairs were left uncompleted, and if Peter, who built 50 chairs, built the greatest number of chairs ,what is the least number of chairs one of the carpenters could have built, if no

    asked by Anonymous
  36. Physics,2.01x

    The shaft ABC is a solid circular cylinder of constant outer diameter 2R and length 3L. The shaft is fixed between walls at A and C and it is composed of two segments made of different materials. The left third of the shaft (AB) is composed of a linear

    asked by Uncle Sam
  37. Physics

    A boat is constructed in the shape of a rectangular cube. The base of the boat is 2m by 3m and the side of the boat is 2m high. The boat has a total mass of 4500kg. Hint-The density of the water is 1000kg/m^3. a. What is the buoyant force on the boat?

    asked by Jason
  38. math

    A round bar 40mm diameter is subjected to an axial pull of 80kN and reduction in diameter was found to be 0.00775mm. Find Poisson's ratio and Young's modules for the material of the bar. Take value of shear modules as 40kN/mm0…5.

    asked by aswath
  39. physics

    While taking a plane flight to a meeting, a physicist decides to do a mental calculation of how much fuel the plane would consume in the absence of friction, assuming its engines have an efficiency of 22.0% and the mass of the plane is 200,000 kg. Each

    asked by Justin
  40. government .. Please Help!

    i need some examples on what type of due process has been violate?

    asked by Noami
  41. psychology

    a person was asked to break down into its basic elements the immediate experience of eating an apple. this approach represented the ________ school of psychology a.behaviorist b.functionalist c.structuralist d.psychoanaytical

    asked by meka
  42. math

    Sue is in an airplane which travels at a constant 300 kilometers per hour. The angle of climb of the airplane is 30 ∘. How long (in seconds) would it take from takeoff, before the airplane reaches 3000 meters, when Sue can access Wifi and work on the

    asked by ayan
  43. math

    Calvin and Ken bought a bag of 60 onions. They divide all of these onions between them, such that the number of onions that Ken has is a multiple of the number of onions that Calvin has. Given that Calvin has at least 7 onions, what is the maximum number

    asked by ayan
  44. psychology

    The entire class was in an uproar. The teaching assistant had proctored the exam while the professor was attending a conference and the test seemed unrelated to the chapters which they had studied. The students complaints are based on the test's lack of

    asked by Katherine
  45. physics

    (a) What is the best coefficient of performance for a heat pump that has a hot reservoir temperature of 50.0°C and a cold reservoir temperature of -20.0°C? (b) How much heat in kilocalories would it pump into the warm environment if 3.60 multiplied by

    asked by Justin
  46. math

    The dimensions of a piece of fabric are 45" by 75". Find the area of the largest square that can be cut from this piece of fabric.

    asked by vincent
  47. physics

    When 1.60 multiplied by 105 J of heat enters a cherry pie initially at 20.0°C, its entropy increases by 470 J/K. What is its final temperature (C)?

    asked by Justin
  48. Psychology

    Families traveling with young children often make many stops as a result of A. Primary drives B. Secondary drives C. Incentives D. Cognitive needs

    asked by Katherine
  49. Psychology

    16. Greg and Lydia have been married three years. Both hold executive positions in large corporations and are well respected in their fields. Last January, they were thrilled with the arrival of their first child. Lydia returned to her same position after

    asked by Katherine
  50. psychology

    15. Maria is a Hispanic female, Natasha is a Black female, and Joan is a White female. Each has a high school level education but no work . Statistics show that .. A. Natasha will earn less than Maria B. Joan will earn less than Natasha C. Maria will earn

    asked by Katherine
  51. statistics

    A simple random sample of voters will be taken in a large state. Researchers will use the methods of our course to construct an approximate 95% confidence interval for the percent of the state’s voters who will vote for Candidate X. The minimum sample

    asked by Math-Stastistics
  52. English

    Write two compositions. To help you get started, you can choose to write about any two of the following four topics: -a job report. -your most unforgettable character. -an analysis of the causes for some phenomenon or event. -the consequences of a new

    asked by Carlos
  53. english

    Read the following paragraphs and write a topic sentence that expresses the main idea of each. For example, if it is a sport, then some people wonder why cheerleaders must also be concerned with the neatness and uniformity of their appearance. In addition,

    asked by Mat
  54. science

    According to the HIPAA Security Rule, organizations must:

    asked by nana
  55. science

    From a business perspective, which of the following attributes is considered vital to a medical facility’s success? A. Professional and courteous vendor service. B. Computerized data management. C. Good customer service. D. Lack of conflict among

    asked by nana
  56. To whoever "Anonymous" is

    You posted this: Posted by Anonymous on Thursday, July 25, 2013 at 10:16am. Provide a brief overview of government policy toward Native American’s during the period of 1850 to 1900 and the impact this policy had on their lives. You posted your entire

    asked by Writeacher
  57. maths

    determine the angle of inclination for each of the following 3-2=9xand 5=10y-15x

    asked by Roushel
  58. english

    Need Help.Please and Thanks. Read each of the following topic sentences, create your own topic sentence that expresses something about your particular opinion on the subject. Example: Topic sentence provided: When I have free time, I like to relax with a

    asked by Carlos
  59. Solid Mechanics

    A steel block 200 mm X 20 mm x 20 mm is subjected to a tensile force of 40 kN in the direction of its length. Determine the change in volume, if E is 205 kN/mm2 and Poisson's ratio = 0.3.

    asked by Anonymous
  60. Business; Finance

    Texas Wildcatters Inc. (TWI) is in the business of finding and developing oil properties, and then selling the successful ones to major oil refining companies. TWI is now considering a new potential field, and its geologists have developed the following

    asked by Mike
  61. Physics

    A 9.00 V storage battery is connected to three resistors, 4.25 Ω, 11.0 Ω, and 21.0 Ω, respec-tively. The resistors are joined in series. Calculate the equivalent resistance.

    asked by Lynn
  62. biology

    Properties of life and recognizing living and nonliving things What does it take to be a living organism

    asked by Michael R
  63. solid mechanics

    a steel bar 10m long and 10cm*10cm in section .it is subjected to an axial pull of 250KN .determine the intensities of normal and tangential stresses on a plane section at 60 degree to the longitudinal axis .

    asked by sushil
  64. Geometry

    asked by Chelsey
  65. MIT LAB

    Q2_1: QUIZ 2, PROBLEM #1 The shaft ABC is a solid circular cylinder of constant outer diameter 2R and length 3L. The shaft is fixed between walls at A and C and it is composed of two segments made of different materials. The left third of the shaft (AB) is

    asked by MAN
  66. Physics

    Q2_1: QUIZ 2, PROBLEM #1 The shaft ABC is a solid circular cylinder of constant outer diameter 2R and length 3L. The shaft is fixed between walls at A and C and it is composed of two segments made of different materials. The left third of the shaft (AB) is

    asked by MAN
  67. solid mechanics

    A round bar 40 mm dia meter is subjected to an axial pull of 80 kn and reduction in diameter was found to be 0.00775mm.find poisson's ratio and young's modules for the material of the bar. take value of shear modules as 40kn/mm square.

    asked by sushil
  68. solid mechanics

    A steel block 200mm*20mm*20mm is subjected to a tensile force of 40kn in the direction of its length.Determine the change in volume,if Eis 205kn/mm square and poisson's ratio=0.3.

    asked by sushil
  69. religion studies

    1.Think of a marriage ceremony you have attended or know about. Briefly describe ONE ritual that was part of the ceremony. 2.Explain how the ritual in question 1 emphasizes the seriousness of the change taking place

    asked by owami tubatse
  70. Math

    Use the elimination method to solve the system of equations 5u+2v=15 3u+v=-7

    asked by Denise
  71. calculus

    Let V be the volume of the region bounded by x^2+y^2≥z^2, z≥0 and x^2+y^2+z^2≤1. What is the value of ⌊100V⌋?

    asked by andy
  72. calculus

    Evaluate ∬R 1/sqrt(x^2+y^2) dx dy, where R is the region bounded by y≥0 and x^2−x+y^2≤0.

    asked by andy
  73. Math

    x-y=13 4-y=13 -y=9 y= Type an integer or a simplified fraction.

    asked by Denise
  74. Physics

    A 9.00 V storage battery is connected to three resistors, 4.25 Ω, 11.0 Ω, and 21.0 Ω, respec-tively. The resistors are joined in series. Calculate the equivalent resistance can someone answer this please?

    asked by Lynn
  75. general physics

    When you take a bath, how many kilograms of hot water (40.8 °C) must you mix with cold water (11.3 °C) so that the temperature of the bath is 30.9 °C? The total mass of water (hot plus cold) is 190 kg. Ignore any heat flow between the water and its

    asked by justin
  76. calculus

    valuate ∬(x^2+y^2)^2/(x^2y^2) dx dy over the region common to the circles x^2+y62=7x and x^2+y^2=11y

    asked by andy
  77. Calculus-HELP!!!

    Find the Laplace transform of: f(t) = cos^(2)(2t)

    asked by Elyse
  78. Math

    4x+y=7 y= x-y=13 y=

    asked by Denise
  79. biology

    Post a 200- to 300-word response to the following: Many studies have been conducted on cerebral lateralization revealing different functionalities of the left and right hemispheres. Describe four methods for studying cerebral lateralization.

    asked by Anonymous
  80. Physics Help ASAP

    A car horn is pitched at 520 Hz. The car travels along a straight road at a speed of 25 m/s. towards an observer walking at 2 m/. The speed of sound is 334 m/s. Calculate the frequency heard by the observer when: (a) the car is moving towards the observer

    asked by Sher
  81. Math

    a drugstore had a promotion in which $0.50 was refunded to customers for each $10.00 spent on merchandise. if a customer spent $20.00 on merchandise during this promotion, the refund was equal to what % of the amount spent? 1 1/4% 2 1/2% 5% 25% 50%

    asked by Anon
  82. Math

    each "word" in a special code is a three digit number. if no word in the code can begin with a 1 or 0, what is the greatest number of different words the code can contain? 28 512 800 900 1000

    asked by Anon
  83. Chemistry

    For the following electrochemical cell, Co(s)/Co2(aq,.0155M)// Ag+(aq,2.50M)/Ag(s) 1.Write the net cell equation. 2.Calculate the following values at 25 degrees celcius. Eocell, Ecell, deltaGo rxn, and delta Grxn

    asked by Brianna
  84. medical billing

    what codes are assigned for a patient admitted for an azathiopring i drug induced aplastic anemia? the patient has peripheral neuropathy of multiple joints of the lower extremities secondary to severe rheumatoid arthritis. icd 9 cm diagnosis codes with poa

    asked by Anonymous
  85. Math

    if x and y are two different integers in S, which of the following must be the square of an integer I. (x-1)(y-1) II. 4(x-1) III. x^2+y^2 a. none b. I only c. II only d. III only e. I and II

    asked by Anon
  86. calculus

    Evaluate ∬(x^2+y^2)^2/(x^2y^2) dx dy over the region common to the circles x^2+y^2=7x and x^2+y^2=11y.

    asked by andy
  87. Business Communications - English 101

    Could you please check the following for any possible errors? semi-colons, commas, two separate sentences, etc? A new and exciting change is about to premiere for all Peachtree Professional Park personnel. Beginning June 1, 2013, the following dress code

    asked by MaryBeth
  88. government

    i', so confuse because the only answer that i have let is Dennis v. U.S. Would that be the answer? I'm the answer to Dennis v. U.S....which upheld the Smith Act, allowing the government to arrest members of the Communist Party based on the idea of a clear

    asked by Noami
  89. Lesson 6 Principles of Management

    According to the job characteristics model, skill variety, task identity, and task significance combine to affect: knowledge of results, meaningfulness of work, responsibility for results, autonomy

    asked by Anonymous
  90. calculus (please help steve)

    Evaluate ∬(x^2+y^2)^2/(x^2y^2) dx dy over the region common to the circles x^2+y^2=7x and x^2+y^2=11y.

    asked by andy
  91. Social Worker - help!

    I want to become a social worker when I grow up. I love to help people with their problems. When I'm an adult I want to live in a nice house or condo with a wonderful husband and 2 kids. I really don't want to struggle in life. How much does social worker

    asked by Laruen
  92. Physics

    Two resistors 17.0 Ω and 7.1 Ω are connected in parallel across a 6.00 V battery. a) Find the potential difference across each resistor. can someone please give me the answer to this?

    asked by Lynn
  93. general physics

    An automobile has a mass of 1520 kg and a velocity of 19.7 m/s. It makes a rear-end collision with a stationary car whose mass is 2230 kg. The cars lock bumpers and skid off together with the wheels locked. (a) What is the velocity of the two cars just

    asked by tcc
  94. physics

    three antinodes witha peak to peak displacement of 3 cm are observed on a vibrating string of length l and linear density the hanging mass is m what is the velocity of the propagation of transverse waves of the string

    asked by todd
  95. psychology

    25. Teenage mothers who are accustomed to existing on hamburgers, French fries, and Cokes need to consider the nutritional needs of the child. Research has shown that a poor diet can _______________. A. restrict the development of eye and hair color B.

    asked by Katherine
  96. psychology

    Nelda is fearful of public places and has managed to stay "at home" for the last three years. She and her therapist have developed a strategy. During the first week, she will go to the front door and open it and look outside. If she can remain calm, the

    asked by Katherine
  97. physics

    (a) What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 8.02 m/s when going down a slope for 4.28 s? (b) How far does the skier travel in this time?

    asked by justin
  98. chemistry

    How many moles of HNO3 are present in 34.0 mL of a 4.70 M solution of nitric acid?

    asked by fatima
  99. maths

    a carpet is on the floor 8m by 5m . area of border on the carpet is 12m squared.find width and length of carpet. can we use heron'S FORMULA in this?

    asked by deep
  100. Statistics

    The inside diameter of the automobile wheel bearing sets at a factory is expected to be normally distributed with a mean of 1.30inches and a standard deviation of 0.04 inches. What is the probability that a randomly selected wheel bearing will have an

    asked by Lance
  101. physics

    A car that weifgs 15000 n is initially moving at 60 km/hr when the brakes are applied. The cae is broight to a stop in 30 m. Assuming the force applied by the brakes is constant, determine the magnitude of the braking force.

    asked by yvonne gray
  102. geometry

    prove that every every line segment has one and only one end point . use euclids geometry to prove

    asked by dipti
  103. physics

    what is the kinetic energy of 1,200-kg roadster moving at a rate of 88km/hr?

    asked by yvonne gray
  104. English

    I need help think of a thesis for Michael Gows play Away?!?

    asked by Essay help!
  105. Algebra

    I do not the correct steps to solve for this problem. I know I have to first remove the negatives but from there I get confused. This is all the further I could get. Please help. The negative numbers are powers and the problem is a fraction. C-3D-2 C3D2

    asked by Tricia
  106. government

    Democracy is best expressed through... A) voting B) compromise C) elections D) all of the above

    asked by Noami
  107. English

    1. To make a guess today's topic 2. To listen to teacher's explanation 3. To write own reviewing note (Are the sentences above correct?) 4. To make a guess about today's topic. 5. To listen to Teacher's/the teacher's explanation 6. To write your own

    asked by rfvv
  108. Math Statistics

    Students enrolled in an introductory statistics course at a university were asked to take a survey that indicated whether the student has a visual or verbal learning style. Of the 39 students who took the survey, 25 were judged to have a visual learning

    asked by James
  109. Life orientation

    About teenage pregnanancy. Discuss 5 ways in which the human or environmental problem impacts on the communy.

    asked by Nellani
  110. physics

    Calculate the net work output of a heat engine following path ABCDA in Figure 14.30, where horizontal axis is V and each unit is 0.5*10^-3 m^3, V1 = 1.0*10^-3 m^3 and V2 = 4.0*10^-3 m^3. The vertical axis is P(N/m^2); A is (1.0*10^-3,2.6*10^6), B is

    asked by Justin
  111. Physics

    Three identical glasses are filled to the same height with water. The first glass is filled with water only(Wa). The second glass has an object of volume V and density half that of water floating in it (Wb). The third glass has an object of volume V and

    asked by Evelyn Trainer