Questions Asked on
August 31, 2011

  1. Chemistry

    The speed of light is 3.00x 10^8 m/s . How fast is this in miles per hour (miles/h)? Use the conversion . 1mile =1610m

  2. Math

    VF is a small accounting firm supporting wealthy individuals in their preparation of annual income tax statement. Every December, VF sends out a short survey to their customers, asking for the information required for preparing the tax statements. Based on

  3. physics

    a constant force acts for 3s on a body of mass 16kg and then ceases to act.during the next 3s,the body covers 81m.find the magnitude of the force.

  4. Chemistry

    Carbon-12 contains 6 protons and 6 neutrons. The radius of the nucleus is approximately 2.7 (femtometers) and the radius of the atom is approximately 70 (picometers). The volume of the nucleus is 8.2×10^−8 pm^3 And the volume of the atom is 1.4×10^6

  5. Math for business

    I am trying to figure this out. I know I am not right. I was looking for some help on how to get the proper answer. Morgan Company received from Lee Company an invoice dated September 27. Terms were 2/10 EOM. List price on the invoice was $5,000 (freight

  6. physics

    Two point charges Q1= -25uC and Q2= 50uC are separated by a distsance of 12cm the electric field at the point P is zero how far from Q1 is P?

  7. Spanish

    i need help with my homework. i'm supposed to form sentences using indirect object pronouns and the present tense of the verbs, but i keep getting the answers wrong i do not know what i'm doing incorrect. 1.Carmen y Sofía / mostrar / las fotos / a Milena

  8. maths

    the length of the diagonals of a rhombus are 24cm and 32cm. the perimeter of the rhombus is (A) 9cm (B) 128cm (C) 80cm (D) 56cm plz do explain how to find. thank you

  9. Chemisrty

    A 38 g sample of iron ore is treated as follows. The iron in the sample is all converted by a series of chemical reactions to Fe2O3. The mass of Fe2O3 is measured to be 11.1 g. What was the mass of iron in the sample of ore? Answer in units of g

  10. geometry

    in the diagram of collinear points, GK = 24, HJ = 10, and GH=HI=IJ. Find each length.

  11. physics

    a bullet moving with a velocity of 100m/s pirces a block of wood and moves out with velocity of 10m/s.if thickness of the block reduces tn one half of the previous value what will be the emerging velocity of bullet

  12. geometry

    The area of a triangular garden can be no more than 120 feet square feet. The base of the triangle is 16 feet. What is the height of the triangle?

  13. maths

    Meenu had some toffees to be distributed equally among some children. if she put 5 toffees each in a packet, she found only 3 toffees were left. Then she tried putting 6,7 and 8 toffees in a packet and found that again she was left with 4, 5 and 6 toffees.

  14. spelling

    how do you make a spelling triangle

  15. business and stats

    What type of data is the projected return on an investment? Qualitative , continous, attribute,discrete or none of the above

  16. math

    find the average of 37,36,76,84 and 37

  17. geometry

    A square has a side length of 2.3 feet. what is the area of the square?

  18. MATH

    What are open-ended frequency distributions? and Why are they necessary?

  19. job search skills

    if you were a boss what information would you supply to job seeker during informational interview with you?

  20. economics

    Between 1850 and 1950 the productivity of the average American farm worker

  21. finance

    shawn bought a home for $100000.he put 20% down and obtained a mortgage for 30 years at 51/2%.what is the total interest cost of the loan? i need the steps worked.

  22. geometry

    a circle has a circumference of 6c. Find the diametermof the circle

  23. geometry

    Ray QS is the angle bisector of angle pqr. Pqr has a bisecotor qs and angle pqs is 40 degrees. What would be the two angle measures not given in the diagram?

  24. Geometry

    Find the perimeter of a triangle where the area equals 27 and the height is 3 times the length?

  25. math

    What is the value of the underline digit 6 in 4,600,028

  26. Geometry

    A piece of ribbon is 4 yards long, with no ribbon left over. If each piece is 9 inches ong, what is the value of x?

  27. English

    Success comes from hard work. (I will say “NO” to the statement above) Success comes from smart work.

  28. precalculus

    the variable j varies jointly as the square of h and as the cube root of a, and it varies inversely as s. What happens to j when h is doubled, a is multiplied by 8, and s is multiplied by 4?

  29. language and barriers

    to be truly successful teacher aide in a nonbaised culturally diverse classroom you must ? (a)be concerned about and aware of the problems of both minority and nonminority students (b)be particularly sensitive to minority students as mant come from

  30. Intermediate Algebra

    how many gallons of a 90% antifreeze solution must be mixed with 100 gallons of 30% antifreeze to get a mixture that is 80% antifreeze?

  31. geometry

    the measure of a straight angel is 180

  32. math

    Which of the following four fundamental funtions have the same tangent line at x = 0 Ans:_________________ ? y = x, y = x2, y = x3 and y = ex

  33. Physics

    Two identical point charges are fixed to diagonally opposite corners of a square that is 0.6 m on a side. Each charge is +2.5 µC. How much work is done by the electric force as one of the charges moves to an empty corner?

  34. geometry

    rectangles length is 3 more than twice its width and has a perimeter of 30 centimeters find the dimensions

  35. physics

    1. A baseball rolls off a 0.80 m high desk and strikes the floor 0.25 m away from the base of the desk. How fast was the ball rolling?

  36. Math

    What is the number between 149000 and 150000 which has a tens digit that is 7 more than its ones digit. The sum of the tens ans ones digit is 9 and the hundreds digit is zero

  37. physics

    Human blood contains plasma, platelets, and blood cells. To separate the plasma from other components, centrifugation is used. Effective centrifugation requires subjecting blood to an acceleration of 2000g or more. In this situation, assume that blood is

  38. English

    Read the poem and answer the following question. Nature's first green is gold, Her hardest hue to hold. Her early leaf's a flower But only so an hour. Then leaf subsides to leaf. So Eden sank to grief. So dawn goes down today, Nothing gold can stay. How

  39. math

    How do I simplify the following expression using the distributive property? 7z-4+6(2z-9)

  40. Chemistry

    If the copper is drawn into wire whose diameter is 9.50 , how many feet of copper can be obtained from the ingot? The density of copper is 8.94 . (Assume that the wire is a cylinder whose volume is , where is its radius and is its height or length.)

  41. Composition II

    I have to write a causal analysis to the Frederick Douglass speech "What to the slaves is the Fourth of July?" I am having trouble doing this.

  42. 7th grade math

    Is "quantity of" same as a multiplication problem?

  43. Chemistry

    Which of the following solutions of strong electrolytes contain the largest number of ions: 100.0 mL of 0.30 M AlCl3, 50.0 mL of 0.60 M MgCl2, 200.0 mL of 0.40 M NaCl?

  44. physical science

    How do I keep an acid or base from producing heat and splattering?

  45. algebra

    1) It took a contractor 1285 hours to manufacture their first unit of an item. If the contractor expects to achieve a 92% unit learning curve, how many hours would be required to manufacture units 51-100? (Use the tables provided in the lesson). 290,475

  46. teacheraide in special education setting

    a common symptom of a behavior disorder is

  47. literature

    François and Perrault are

  48. chemistry

    how many moles of NaOH (aq) is contained in 10.0mL of vinegar?

  49. geometry


  50. 4th Grade Science

    How much time will it take for Earth to reach the opposite side of the Sun?

  51. french

    what does "repondez en utilisant un pronom"?

  52. Administration of Criminal Justice

    You are the captain in the police department’s special response unit. Your unit normally handles many special projects for the chief of police, from providing officers for parades and demonstrations to targeting an area in which there is a serious

  53. chemistry

    I'm having a problem with the gas constant. This is it: In the question: Calculate the amount of moles of a gas if .455 occupies a volume of 250mL at 27 degrees Celsius and 772mmHg. I do all the correct steps using the R = 8.314 for the 772mmHg. I get .077

  54. Texas History

    What route would you take to get from Corpus Christi, TX to Beaumont, TX? You go like, I-37 N and then I-10 W, right?

  55. Physics

    I know that when objects are connected and a force is exerted on the connected objects, we treat them as a system with a single acceleration. I was just wondering if objects were piled on top of each other they would still be connected. if a horizontal

  56. algebra 3-4

    a 3 mile cab ride cost $7.00. A 7 mile cab ride cost $11.50. Find a linear equation that models cost c as a function of distance d.

  57. geometry

    what are the measures for the following shapes? cube? rectangle? cone? sphere?

  58. geometry

    Referring to this figure what is the difference in the meaning between the notaions QR( with a line over it) and QR?

  59. training

    what are some technical and behavioral skill of a call center?i cant think of any..i just think that call center anser phone calls...can you suggest me some?thanks

  60. French

    what are the subject pronouns in the french language?

  61. English

    1. Two hundred and fifty-six grains of rice amounts to one spoon of rice. 2. Two hundred and fifty-six grains of rice amount to one spoon of rice. 3. Two hundred and fifty-six grains of rice is one the table. 4. Two hundred and fifty-six grains of rice are

  62. biology

    Define characteristics of living things

  63. chemistry

    What is the maximum water temperature that a lake can have to retain a dissolved oxygen concentration of 0.262 mM?

  64. Geometry

    A counterexample does not exist for the following statement. Explain how to use inductive reasoning to find the seventh and eighth terms. Use inductive reasoning to find the terms.

  65. Math

    a phone company wants to create some new area codes. Each new area code will have 3 numbers. Using the digits 1, 5, and 7 only once in each code, how many new codes can the phone company create?

  66. Honors Math

    How do you divide 4 by 5?? 4/5=0.8 but how do i get the answer to show my work

  67. Calculus

    Infinite series question. an=2+(0.99)^n Converge or Diverge?

  68. MATH


  69. health

    What are some procedures used in public health to eliminate the threat to society?

  70. physics

    A rocket burnt fuel av the rate of 20kgs^4 and eject it with a velocity of 5.0*10^3ms^-1. Calculate the thrust exerted by the gas on the rocket.

  71. Physical science

    Light project gr10

  72. prealgebra

    IM stuck on a question. PLease help. A teacher is giving candy to his periods. First period gets 1/3 and 2nd period gets 1/4 and 3rd period gets 1/3 and finally 4th period gets 22 pieces. How many pieces did each period get? Im stuck!!

  73. chemistry

    What is the maximum water temperature that a lake can have to retain a dissolved oxygen concentration of 0.262 mM?

  74. math

    using the terms factor, divisor, multiple, product, and divisible by, write as many statements as you can about the number sentence 6 times 8 equals 48

  75. MATH

    Of the adult Fiji population, 42% has a rare allergy due to expose to domestic cat. A sample of 500 randomly selected adults resulted in 65% reporting the certain allergy. i)Describe the variable, population and sample. ii)Identify the parameter and give

  76. Calculus

    I am having a mental block. I have the answer to the question. It is (-‡,‡). I just need help figuring it out. The equation is: x^2+1>0

  77. Free Enterprise

    What is the difference between communism and socialism?

  78. english

    can you please tell me if these sentences make sense. im talking aboout the book the great gatsby. Change is inevitable to time, however, majority of us deny it. If we lose something in the past that we have admired, we sometimes in future try to replicate

  79. Science

    Living things can change a _____ in ways that can be _____ or harmful.

  80. Biology

    1. A medical scientist is designing an experiment to test the results of a new drug that she hypothesizes will greatly reduce and possibly eliminate the side effects of a new cancer treatment. If this experiment is to be set up correctly, she must (A)

  81. Texas History

    What route would you take to get from El Paso, TX to Corpus Christi, TX? Simple, please. I need it for a project.

  82. physics

    A cheetah is hunting. Its prey runs for 2.9 s at a constant velocity of +9.9 m/s. Starting from rest, what constant acceleration must the cheetah maintain in order to run the same distance as its prey runs in the same time?

  83. Math

    Perform the indicated operations with the following two functions. f(x)=x2 +7x-4 and g(x)=3x-12 3. f(x) + g(x) 4. f(x), g(x)≠ 0 g(x) thanks for the help!

  84. College Algebra

    Graph the equation in the standard window and in the given window. Determine which window better shows the shape of the graph and the x- and y- intercepts: y= -2x + 24 [-15,15, -10,30] Xscl =3 Yscl =5

  85. marketing

    For business marketing, we are planning to make and sell soap, with our target audience as teenagers. What do you think we need to do in order to attract lots of customers and for them to sell?

  86. Science

    What does scientific inquiry mean?

  87. math

    Form the composites of the following two functions. f(x)=x2 +7x--4 and g(x)=3x--12 5. (f  g)(x) 6. (g  g)(x) thanks!

  88. English

    I made the changes you wrote. Can you please check if everything is OK? 1) The rooms are all set in a way that one cannot see from one room to another; besides, each room has a Gothic window and ornaments of the same colour. 2) Only the last one is all

  89. language arts

    I cant find the ourspace website, I need for this evenings home work I have search several search engines...Any suggestions please

  90. Math

    Determine whether or not the function is one-to-one. 1. f(x) = 2x - 7 2. f(x) =(11x − 5)

  91. Math

    How do I write a polynomial expression to represent the third side of the triangle? I know one side is 2x-3y and the other is x+2y and P=5x+2y? I am lost.

  92. science

    give an example from everyday life that shows that the atmosphere has substance.

  93. History

    comparing French, ducth, and english colonies, which ones attracted the most settlers, and which the fewest? in what colonies were woman scarce? what impact did these differences in emigration have on the various colonies development?

  94. chemistry

    What is the maximum water temperature that a lake can have to retain a dissolved oxygen concentration of 0.262 mM?

  95. english

    can you please tell me my snetences make sense. this is about the great gatsby. Gatsby tries to reunite with Daisy, expecting their relationship to sustain with the same compassion, affection, and love as before. However, he realizes that Daisy is now

  96. chemistry

    What is the maximum water temperature that a lake can have to retain a dissolved oxygen concentration of 0.262 mM?

  97. MATH (Probability)

    Jackson and Alice are the boss and secretary respectively working in an office for a firm. At any particular time during office hours, the probability that Jackson is in the office is 0.82 and probability that Alice is in the office is 0.98. The

  98. algebra

    solve and check.label ant contradictions or identities. 5(t+1)+8=3(t-2)+6 5t+5+8=3t-6+6 5t+13=3t 2t=-13 t=-13/2 check59t+1)+8=3(t-2)+6 5(-13/2)+1+8=3(-13/2)-2)+6 -65/2+13=-39/2 13=-39/2+65/2 13=26/2 13=13 want to know if this right

  99. Chemistry

    You have been told that a certain house is 164m in area. How much is this in square feet? Use the conversion . 1ft= 0.305

  100. algebra

    want to know if this right Area of a triangle with b base and height h A=1/2bh,for b 2A=b*h 2A/h=b b=2A/h

  101. Math

    At the Sacramento Monarchs home games, Row 1 seats cost $35 each and Row 2 seats cost $30 each. The 105 seats in these rows were sold out for the season. The total receipts for them were $3420. How many of each seat were sold?

  102. physics

    an elevator weighing 500kg f moving upward and tension in the supporting cable is 50000N.find upward acceleration.

  103. Chemistry

    The speed of light is 3.00x 10^8 . How fast is this in miles per hour (miles/h)? Use the conversion . 1mile =1610m

  104. math

    3x+6y=48 -5x+6y=32

  105. Geometry

    An angle measures 5 degrees more than 4 times its complement. What is the angle? I understand that the formula would be 4x+5 degrees. Would this be the answer?

  106. science

    how do I calculate volume of atoms in unit cell and volume of unit cell for plane triangular lattice?

  107. english

    Which pattern is most effective to deliver a persuasive message when the audience may resist doing as you ask and you expect emotion to be more important than logic in the decision? The problem-solving pattern The sales pattern The direct request pattern

  108. Geometry

    Draw a conclusion from the given information. Given: When you are relaxed, blood pressure is relatively low. If you are sailing, you are relaxed. Becky is sailing.

  109. chemistry

    What energy is required to excite a hydrogen atom in its n = 2 state to the n = 3 state ?

  110. math

    hi! I am having problems with my caculator. it is the complex kind of caculator. I have been trying to play around with it. when ever I use decimals with multiplication, division, subtraction, and addition, the answer is a fraction. doea anybody know how

  111. Chemistry

    What are the atomic number (z) mass number (a) and symbols of the carbon isotope with 7 neutrons. What is and how do I get the mass number?

  112. geometry

    Stupid logic problem: At the state basketball tournament, 42 basketball games are played to determine the winner of the tournament. After each game, the loser is eliminated from the tournament. How many teams are in the tournament?

  113. language arts/computer

    does anyone know of website where they teach grammar for free and give yopu interactive tests?

  114. physics

    a rocket blasts off and moves up with an acceleration of 12 m/s2 until it reaches 30 m then the engine shuts down and the rocket continues in free fall. What is the max hieght of the rocket and what is the total duration of the rockets flight?

  115. geometry

    The perimeter of a pentagon (4x + 4) is three times the perimeter of a triangle (x + 3). Using this statement, find x.

  116. science

    what is the word to put in the blank? A(n)_____________is a summary of what you have learned from an experiment. PLEASE help! whoever answers this please type an answer nicely. Thank You!!

  117. chemistry

    How many oxygen atoms in 9 grams of sugar?

  118. 6th grade math

    Answers for i am a-digit number. My hundreds digit is triple my thousands digit. The number formed by my tens and ones digits is triple the number formed by my thousands and hundreds digits. No digit appears more than once. what number am i?

  119. Algebra

    5(2n + 4) - 3(4n - 6) = 2(20 - n) I solved this equation and this is what I got. 10n + 20 - 12n + 18 = 40 - 2n -2n + 38 = 40 -2n 38 ≠ 40 What does this mean? Thank you!

  120. physics

    two runners who live 10 miles apart leave home and start running towards each other at the same time. one runner runs 4 miles per hour, and the ohter runs 6 miles per hour. how long after the runners begin running will they meet?

  121. physics

    an airplane flies 200 km due west from city A and then 350 km in the direction of 32.0 degrees north of west from city B to city C. a) in a straight-line distance, how far is city c from city a? b) relative to city a, what direction is city c?

  122. Chemistry

    Ok, so in my gen chem 1 class, the teacher showed us that ethanol would not dissolve a sugar cube while water dissolves a sugar cube easily. No explanation was given, she just told us we would find out in gen chem 2. Here i am in gen chem 2, and the same

  123. Chemstry

    Mercury concentration in a polluted lake is 0.0125 micrograms/L. What is the total mass in kilograms of mercury in the lake if the lake is approximately circular witha diameter of 10 miles and an average depth of 50 ft.?

  124. Economics

    My teacher give an investigation. Topic is easay of poverty include characteristics of poverty and the causes of poverty. Please anybody who can help me, i'm ready for a help pleas by the grace of god i nead a help.

  125. world history

    Identify the concerns and attitudes emphasized during the renaissance?

  126. English

    1. He will ask you what you like. 2. I doubt what he will do. 3. Tell me what you want. 4. I don't remember what he said. 5. I know what his job is. 6. He told me what I liked. (Are the sentences all correct? 'What' in each sentence is an interrogative

  127. Chemistry

    A rock is 5.0% by mass fayolite(Fe2SiO4), 7.0% by mass forsterite(Mg2SiO4) and the remainder silicon dioxide. What is the mass percent of each element in the rock? I have the answers but i don't know how to solve the problem. How would you in steps solve

  128. english

    can you please correct this. i compared michael jackson's life to gatsbys from the novel the great gatsby. when i read this out loud it sounded i think it didn't have that contining fluency. please help me make it more fluent! Michael Jackson and Gatsby

  129. science

    what is the difference between intended benefits and unintended consequences?

  130. Maths

    There are 47 in a club. 18 play chess and 13 play tennis. The number who play neither is 3 times the number who play both. How many play both?



  132. physics

    A commuting student leaves home and drives to school at an average speed of 42.0 km/h. After 22.0 min he realizes that he has forgotten his homework and returns home to get it at the same average speed. It takes 8.0 min to find the report, after which the

  133. physics

    You are driving south on a highway. Then, without changing speed, you round a curve and drive west. Do you accelerate?

  134. physics

    A eye pupil of 1 cm diameter can resolve about what angle in radians? First of all I don't understand what they mean by resolve. Resolve the light coming into the eye?

  135. calculus

    Find two unit vectors that make an angle of 60° with v = 3, 4 (Enter your answer as a comma-separated list of vectors. Round your answers to four decimal places.)

  136. physics

    A uniformly accelerated particle covers three successive equal distances in time intervals t1, t2 and t3 respectively.

  137. MAth

    How do you write 4,498,252,900 in expanded form?

  138. Law

    Thanks Ms. Sue

  139. English

    I left out the following sentences. Thank you. 1) In particular, he decides to gather a thousand friends in his castle. After five or six months of their stay there, he decides to hold a masked ball, which will take place in seven rooms. 2) The rooms are

  140. transformations

    what are the 4 major types of transformations and real life examples

  141. English

    Could you please check these sentences for me, please? Thank you. 1) The story takes place in Prince Prospero’s castle, a big fortress with thick walls and refined furniture. 2) There are seven rooms for parties, each of which has a Gothic window and

  142. geometry

    B is the midpoint of AC. FInd BC if AB=3x-4 and AC=58

  143. physics

    You are driving north on a highway. Then, without changing speed, you round a curve and drive east. Does your velocity change?

  144. physics

    A certain car is capable of accelerating at a rate of 0.59 m/s2. How long does it take for this car to go from a speed of 27 mi/h to a speed of 33 mi/h?

  145. Elementry education major

    how many tens are in 13,644 A.4 B.13,644 C.1,364 D1,364.4

  146. algebra

    The equation y=-1777x+27153 can be used to predict the number y of gun deaths in the united states x years after 2000, that is, x=0 corresponds to 2000 x=3 corresponds to 2003, x=4 corresponds to 2004, and so on. Predict the number of deaths in 2004 and

  147. chemistry

    Calculate the number of moles of Ca(OH)2 (aq) needed to react completely with 125 mL of 6.00 M HCl(aq). It doesnt give any stoichometric coefficients so how are you meant to do this?

  148. science

    dust is often light in color,while soot from fires is generally dark.what would happen to the amounts of solar radiation reflected and absorbed if a large amount of light-colored dust was added to the air?what if a large amount of dark soot was added?

  149. chemistry

    a sample of gas occupies 1910ml at -22.8 degrees C and 740 torr. what volume would it occupy at the same pressure and 285 degrees C? answer units in ml

  150. math

    Essay: Show all work. Find the quotient: 9a^2 - 100b^2 / 3a - 10b

  151. math

    Essay: Show all work. Find the quotient: y^4 + 3y -5 / y^2 + 7

  152. algebra

    perform the indicated operations and,if possibly,simplify,if a quotient is undefined,state this -5/9+2/3 is this right-7/27

  153. government

    information about the Congressional committee that will be working on reducing the national deficit in the next few months

  154. Math

    I am in 6th grade and have a math problem that I need help with. How can you use four rods that measure 2cm, 5cm, 7cm and 9cm to measure a length of 1cm?

  155. English

    1. Uros people began to live this way. 2. Uros people began to live in this way. 3. Uros people began to live by making their houses and boats with reeds as well. 4. Uros people began to live by also making their houses and boats with reeds. (Are they all

  156. English

    I left out the following descriptions of the room. Thank you very much for your invaluable help. 1) I left out the following description of the room. The rooms are all set in a way that one cannot see from one room to another; besides, each room has a

  157. chemistry

    During the combustion of ethane, C2H6(g), 40.4 grams of liquid are collected . How many liters of ethane, measured at 3.55 atm and 33 C, were burned?

  158. history

    what was The Significance of Noah Webster thinking and writing

  159. chemistry

    How many grams of zinc must react with HCl in order to produce 4.35 liters of hydrogen gas, measured at STOP?

  160. Algebra

    Could someone verify if I got two answers to two problems right? f(x)=x^2-9x+15 find x and y intercepts -9+square root of 21/2,0 -9-square root of 21/2,0 x^2-x+3=0 solve and find x-intercepts (1+square root of -11/2,0) (-1-square root of -11/2,0)

  161. 7th grade science

    Sorry! this is alot of questions. Science is not my best subject but i still do well in it but the questions are really hard for me pleas help answer this. What might you ask yourself in drawing a conclusion about an experiment? Why is scientific inquiry a

  162. algebra

    write an equivalent expression without using grouping symbols -(-9x^3+8x+10)

  163. physics

    You are designing a centrifuge to spin at a rate of 13,880 rev/min. (a) Calculate the maximum centripetal acceleration that a test-tube sample held in the centrifuge arm 14.6 cm from the rotation axis must withstand. (b) It takes 1 min, 17 s for the

  164. math

    which expression can be used to find the area, in square units, of a similar polygon with a side length of n units

  165. prealgebra

    if 9% = 22 what is 100%?

  166. Algebra

    In a class of 110 students, 22 received the grade of A. what fraction of the students did not receive the grade A?

  167. nstp

    introduction to dangerous drugs prevention and control?

  168. Chemistry

    You wash dishes for a chemistry laboratory to make extra money for laundry. You earn 6 dollars/hr , and each shift lasts 75minutes . Your laundry requires 6quarters/load. How many shifts must you work if you wish to wash 10 loads of laundry?

  169. physics

    an airplane flies 200 km due west from city A and then 350 km in the direction of 32.0 degrees north of west from city B to city C. a) in a straight-line distance, how far is city c from city a? b) relative to city a, what direction is city c?

  170. chemistry

    Under an O2(g) pressure of 1.00 atm, 30.9 cm3 of O2(g)at 25C dissolves in 1.00 L H2O at 25C. Assuming that the soln volume remains at 1.00L, what is the Molarity of a saturated O2(aq) soln at 25C when partial pressure O2=1 atm? DRBOB222 said to: Convert

  171. Math

    At the end of the first quarter of 2006, all the major stock market indexes had posted strong gains in the past 12 months. Mass Mutual Financial Group credited the increases to solid growth in corporate profits. The mean one-year return for stocks in the

  172. Calculus

    Shadow Length A man 6 feet tall walks at a rate of 3 ft per second away from a light that is 16 ft above the ground (see figure). When he is 11 ft from the base of the light find the following. (a) The rate the tip of the shadow is moving. (b) The rate the

  173. chemistry

    what is the average volume of vinegar needed to exactly neutralise 10.0mL of NaOH (aq)?

  174. science

    scientist do their experimental test more than once so they can reduce the effects of chance errors this is called conducting what

  175. chemistry

    Calculate the mass of solute required to make: 10.0 cm3 of 0.100 M Fe(NH4)2(SO4)2.6H20 Please explain how you did it and as well the status of the 6 waters there, are they considered solute or solvent or what? Thanks a bunch!

  176. chemistry

    The mass of one penny is 2.51 grams and its volume is 0.40 cubic centimeter. The density in g/ml of this penny is

  177. literature

    In "A Pair of Silk Stockings," the silk stockings are a symbol of