# Questions Asked onJuly 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

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)

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

4. ## math

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

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

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

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

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

9. ## Calculus

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

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

11. ## math

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

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

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

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?

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?

16. ## Calculus-HELP!!!

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

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

18. ## psychology

critical thinking involves being able to

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

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.

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

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

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

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.

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.

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,

27. ## civics

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

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

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)

30. ## economics

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

31. ## Math

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

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.)

33. ## government..

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

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

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

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

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?

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.

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

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

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

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

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

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

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

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.

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)?

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

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

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

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

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

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,

54. ## science

According to the HIPAA Security Rule, organizations must:

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

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

57. ## maths

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

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

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.

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

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.

62. ## biology

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

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 .

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

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

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.

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.

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

70. ## Math

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

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⌋?

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.

73. ## Math

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

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?

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

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

77. ## Calculus-HELP!!!

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

78. ## Math

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

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.

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

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%

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

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

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

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

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.

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

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

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

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.

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

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?

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

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

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.

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

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?

98. ## chemistry

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

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?

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

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.

102. ## geometry

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

103. ## physics

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

104. ## English

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

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

106. ## government

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

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

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

109. ## Life orientation

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