Questions Asked on
March 22, 2015

  1. CHEMISTRY

    At 25°C and 730 mm pressure,380 ml of dry oxygen was collected.If the temperature is constant ,what volume will the oxygen occupy at 760 mm pressure ? ANSWER- 365ml

    asked by Tanya
  2. Chemistry

    0.24g of a volatile substance,upon vaporisation,gives 45ml vapour at NTP what will be the vapour density of the substance?

    asked by Tanya
  3. life orientation

    Four kinds of fraud that students who receive and repay nsfas should guard against

    asked by Thabang
  4. Pre ALGEBRA

    Which polynomial does the model represent? The model shows 1 black square block, 2 white thin blocks, 1 black thin block, 1 white small square block, 3 black small blocks. a –x³ + 2x² – 3x + 2 b. x² + x – 2 c. –x² – x + 2 d. –x² + x – 2

    asked by Oscar
  5. life orientation

    Explain clearly,the similarities and differences between funza lushaka and nsfas (8)

    asked by Thabang
  6. Physics

    A shopper pushes a grocery cart for a distance 18 m at constant speed on level ground, against a 25 N frictional force. He pushes in a direction 24° below the horizontal. What is the work done on the cart by the shopper, in joules? Magnitude of the force,

    asked by TT2014
  7. Advanced Algebra

    • In how many ways can a chairman, a vice chairman, a secretary, and a treasurer be selected from a committee of ten people? Is it right that i used the equation 10!/4! ? I don't know if the answer 151200 is correct. Can someone help me? Thanks!

    asked by Dannie
  8. critical thinkng

    Three of the following statements about a verb are true. Which statement is false? A. A verb can express action. B. A verb can express a state of being. C. A verb takes the place of adjectives. D. A verb makes a statement about the subject of a sentence.

    asked by Saddia
  9. Math

    Alicia has a flat platter shaped like a square with a semicircle of diameter 10 inches on each edge, as pictured. What is the number of inches in the side length of the smallest square ABCD that can contain the platter? I drew a diagram so far, but I don't

    asked by Kelly
  10. Life orientation

    3 advatanges for a student to study at the institutions of higher education through NFSAS.

    asked by Kate
  11. mathematical physics

    Show that: (I) u = e^xsiny is a solution of Laplace's equation. (ii) u = x^2+t^2 is a solution of the wave equation.

    asked by gourav
  12. science

    1.why is freshwater a limited resource? a)because most water on earth is in lakes** b)because most water on earth is in clouds c)because most water on earth is in the ground d)because most water on earth is salt water

    asked by HOMEWORK
  13. Earth science

    13 of the19 lives lost you to the Wichita Andover tornado were at the mobile home park in Andover. Even though there was some advanced warning what could explain the relatively high death toll at this location?

    asked by Daniela
  14. algebra

    6. Two lighthouses A and B are 25km apart and A is due West of B. A submarine S is on a bearing of 1370 from A and on a bearing of 1700 from B. Draw a picture relevant to the situation, and find the distance of S from A and the distance of S from B( give

    asked by Choi
  15. Physics

    A uniform solid sphere rolls down an incline. (a) What must be the incline angle if the linear acceleration of the center of the sphere is to have a magnitude of 0.50g?

    asked by Uina
  16. Math

    In a marketing survey involving 1,000 randomly chosen people, it is found that 630 use brand P, 420 use brand Q, and 210 use both brands. How many people in the survey use brand P and not brand Q? Answer choices: 210 people 420 people 630 people none of

    asked by M
  17. Chemistry

    How many milliliters of 0.258 M NiCl2 solution are needed to react completely with 20.0 mL of 0.153 M Na2CO3 solution? How many grams of NiCO3 will be formed? The reaction is Na2CO3(aq) +NiCl2 (aq)----> NiCO3(s)+2NaCl I solved for the 1st part, 11.8 M

    asked by Stacie
  18. Chemistry

    If 20dm3 methane was burned in pure oxygen: CH4(g) + 2O2(g) arrow CO2(g) + 2H2O(l) how do I work out the volume of carbon dioxide made? And what volume of oxygen would be required? Thank you.

    asked by Maria
  19. Life orientation

    Suggest five practical actions that you can take to address human rights violations of xenophobia in your community

    asked by Maungo
  20. genetics

    In tomatoes, the allele T for tall plant height is dominant to dwarf allele t, the P allele for smooth is dominant to the p allele for peach fuzz skin, and the allele R for round fruit dominant to the recessive r allele for oblong fruit. The genes

    asked by Lucy
  21. Life orientation

    compelling reasons for deeming your eligibility for financial support

    asked by hlayisani
  22. Genetics

    The boss in your laboratory has just heard of a proposal by another laboratory that genes for eye color and the length of body bristles may be linked in Drosophila. Your lab has numerous pure-breeding stocks of Drosophila that could be used to verify or

    asked by Lucy
  23. CHEMISTRY

    A gaseous mixture was prepared by taking equal mole of CO and N2 .if the total pressure of the mixture was found 1 atmosphere ,the partial pressure of nitrogen (N2) in the mixture is.

    asked by Tanya
  24. Business Management

    What kinds of queries would be useful to Woodcraft, assuming that it wants to improve its sales, relationship with its customers, or other aspects of its business? Describe what information you might want to select from the database in the form of a query,

    asked by Denise
  25. English

    The principles for supplying evidence in support of a thesis could be represented by an acronym: RSVSRA. According to the information in your text, the two "Rs" could stand for A. representative and revealing. B. revealing and relevant. C. relevant and

    asked by Cristine
  26. chemistry

    1)Thallium (I) is oxidized by cerium (IV) as follows: Tl+ + 2 Ce+4  Tl+3 + 2 Ce+3 The elementary steps, in the presence of Mn(II), are as follows: Step 1 Ce+4 + Mn+2 --- Ce+3 + Mn+ Step 2 Ce+4 + Mn+3 ---- Ce+3 + Mn+4 Step 3 Tl+ + Mn+4 ----- Tl+3 + Mn+2

    asked by treasa
  27. Physics

    A dog, weighing 10.0 lbs, is standing on a flatboat so that he is 20 ft from the shore. He walks 8.0 ft on the boat toward shore and then halts. The boat weighs 40 lb, and one can assume there is no friction between it and the water. How far is he from the

    asked by Nora
  28. critical thinking

    Which of the following correctly describes connotation? A. An implied meaning of word understood by language users B. The pronunciation of a word C. The meaning of a word that has never changed D. A new word added to the dictionary my answer is a.

    asked by Saddia
  29. Criminal Justice

    . In 1215 the __________ was signed. Its article 39 provided a basis for modern juries. A) European Charter B) Charter of Liberties C) Articles of Confederation D) Magna Carta

    asked by Samantha
  30. Physics

    A motor boat is traveling at a speed of 2.4 m/s shuts off its engine at t=0. How far does it travel before coming to a rest if it is noted that after 3 seconds its speed has dropped to half of its original value? Assume that the drag force of the water is

    asked by Anonymous
  31. Biology

    What is the phenotype ratio for TTyy X TtYy? Is it 8:8 for tall + yellow to tall + green?

    asked by Anonymous
  32. Physics

    The position of a mass oscillating on a spring is given by x = (7.0 cm) cos [2πt/(0.71 s)]. (a) What is the frequency of this motion? (b) When is the mass first at the position x = -7.0 cm?

    asked by Yadan Valeton
  33. Chemistry

    Can someone please answer one of these question so I would be able to know how to do the others? 1. What volume of 0.275 M KOH (aq) must be added to 75.0 mL of 0.137 M H3AsO4 (aq) to reach (a) the first stoichiometric pony; (b) the second stoichiometric

    asked by Anonymous
  34. Maths

    1. In the xy-coordinate plane, point A is the midpoint of the segment with endpoints (2,4) and (-4,-4). What is the distance from point A to the origin? I know how to find the distance between the two points- 10. But I don't know where to go from there. 2.

    asked by Lina
  35. MEDICAL CODING

    Use the CPT manual to assign the appropriate procedure code to the following excersie. 3. Diagnostic, Rigid bronchoscopy for the evaluation of chronic hemoptysis. CPT Code: ___________

    asked by MEHUL
  36. "Nobel Lecture" by Alexander Solzhenitsyn

    1. What does Solzhenitsyn mean by "internal affairs"? 2. How did writers of the world influence Solzhenitsyn's career? 3. What connection does Solzhenitsyn see between lies and violence? A: Solzhenitsyn sees that violence can only be concealed by lies, and

    asked by Victoria
  37. Criminal Justice

    Males are arrested at rates much higher than females for the following crimes except: A) murder. B) rape. C) fraud. D) weapon offenses. Would the answer be A?

    asked by Heather
  38. related rates calculus 1

    gravel is being dumped from a conveyor belt at a rate of 15 ft^3/hr and its coarseness is such that it forms a pile in the shape of an inverted right cone whose height is three times its base radius. How fast is the height of the pile increasing when the

    asked by Ryan kustin
  39. Math

    1. Rishi ram obtained an installment loan for $3,000.00. He agreed to repay the loan in 6 monthly payments. His monthly payments is $516.50. What is the APR? MY ANSWER=0.33% 2. Tim Newman took out a simple interest loan of $1500 at a 10 percent interest

    asked by Kailey
  40. CHEMISTRY

    The average kinetic energy of an ideal gas,per molecule in S.I units at 25°C will be

    asked by Tanya
  41. History

    I'm having trouble answering these questions. Can someone help without being mean? Please help! Much appreciated! Excerpt from Douglas’s speech: "I believe that the Union can only be preserved by maintaining inviolate the Constitution of the United

    asked by Oscar
  42. reading and writing

    In which sentence does the italicized word have a negative connotation? A. Although she had worked hard in high school, Ruth found the college courses challenging. B. Jenna's green eyes and dark eyelashes gave her an exotic look. C. Jack, who is the most

    asked by brittney
  43. chemistry

    I'm having trouble balancing this equation in a basic solution. Cr(OH)3 + Br2 -----> CrO4{2-} + Br{-} Do I do start this with half reactions Thanks

    asked by Stacie
  44. genetics

    kernel phenotype Number colored, shrunken, starchy 116 colored, full, starchy 601 colored, full, waxy 2538 colored, shrunken, waxy 4 colorless, shrunken, starchy 2708 colorless, full, starchy 2 colorless, full, waxy 113 colorless, shrunken, waxy 626 total

    asked by Lucy
  45. Criminal Justice

    . The __________ who conquered England in 1066 used procedures that set the stage for modern juries. A) Romans B) Greeks C) Huns D) Normans

    asked by Samantha
  46. calc

    Use a linear approximation (or differentials) to estimate the given number. sqrt(99.6) so i think i start with f(x)=sqrt(100-x) so f'(x)= 1/2(100-x)^-1/2 (-1) using a=0 f(x)= 10 and f'(x)= -0.05 when using L(x)=f(a)+f'(a)(x-a) where x=a I get 10 + -0.05(x)

    asked by kirsten
  47. s.s

    Which party endorsed the wilmot proviso A. whig B. free-soil C. democratic D. republican Idk if it's b or d

    asked by kel
  48. Science ( No Bad Post)

    1. A muscle that does its job without your thinking about it is called a _______ muscle. An example is the _______. (1 point) cardiac; bicep skeletal; blood vessels smooth; bladder none of these 2. The body's muscles, bones, and joints work together

    asked by YOLO
  49. Chemistry

    A 20.00 mL sample of a .1000M unknown acid solution is titrated with .1000M NaOH. Given that the acid is diprotic and its pKa's are 1.90 and 6.70 a.) Estimate the pH after 10 mL of base are added b.) estimate the pH after 20 mL of base are added c.)

    asked by lawerence
  50. Criminal Justice

    16. Conviction rates for indigent defendants and those with their own lawyers were about the same in Federal and State courts. About __________% of Federal defendants and __________% of the defendants in the most populous counties were found guilty

    asked by Samantha
  51. Criminal Justice

    . The __________ was the first governing document in the United States. A) U.S. Constitution B) second Constitution of Congress C) Twelve Tables D) Articles of Confederation

    asked by Samantha
  52. chemistry

    Write a balanced chemical equation for the neutralization reaction between aqueous hydrochloric acid and aqueous calcium hydroxide. Be sure the formulas are written correctly before balancing, and include phases. HCl+H2CaO2 im not sure that's written

    asked by jessica
  53. Check My History Please

    1. When the Texas Railroad Commission enforced new restrictions in 1931, those that benefited most were individual wildcatters. small oil operators. large oil companies. Texas state officials.* 2. The geographic area hardest hit by drought in the 1930s is

    asked by SmartyPants
  54. fluid mechanics

    A circular plane lamina is immersed inclined in water such that the distance of its parimeter measured vertically below the water surface varies between 0.6m and 1,5m. Find the total hydrostatic force acting on the side of the lamina, and the vertical

    asked by kefilwe
  55. MEDICAL CODING

    Use the CPT manual to assign the appropriate procedure and modifier codes to the following exercise. The Patient had a catheter inserted into the arterial system from the femoral artery and then into the left ventricle for left ventriculography. Report

    asked by MEHUL
  56. math

    The height of a baseball (h) in meters (t) seconds after it has been tossed out a window is given by the equation h= -5t^2 + 20t + 15. A boy shoots at the baseball with a trajectory of h= 3t +3. Will the paintball hit the baseball? If so at what height and

    asked by zack
  57. Physics

    a car goes over a circular hill of 50m radius at a constant speed of 20m/sec . What is the force of the car on the 600N driver at the top of the hill.?

    asked by Anonymous
  58. critical thinking

    How can you tell the difference between a compound sentence and a complex sentence? A. Clauses in a complex sentence are always independent. B. Complex sentences contain coordinating conjunctions that separate the clauses. C. A compound sentence can be

    asked by Saddia
  59. Genetics

    Question 12 An Hfr strain with the genotype cys+ leu+ met+ strS is mated with an F- strain carrying the genotype cys- leu -met- strR . In an interrupted mating experiment, small samples of the conjugating bacteria are withdrawn every 3 minutes for 30

    asked by Lucy
  60. Physics

    Two balls of equal mass (400g each) undergo a collision. One ball is initially stationary. After the collision, the velocities of the balls make angles of 22.5 degrees and 35.9 degrees relative to the original direction of the motion of the moving ball. If

    asked by Zobia
  61. CHEMISTRY

    The pressure exerted by 6.0g of methane gas in a 0.03m3 vessel at 129degreeC is.

    asked by Tanya
  62. Defense

    . Which of the following is not an example of an ethical dilemma a defense attorney may face? A) the prosecutor's winning record. B) client perjury. C) defense receipt of physical evidence. D) a confession in confidence. Would it be A?

    asked by Heather
  63. Criminology

    . The largest category of convictions for felonies is: A) drug offenses. B) violent crimes. C) sexual crimes. D) property crimes. I think its A Im not sure though... I tried looking it up in my notes and book. I am trying! Believe me.

    asked by Heather
  64. Math

    a plane traveling at 400 mph leaves the philadelphia airport at 1pm heading due east. two hours later a second plane traveling at 600 mph leaves the airport heading in the same direction. at what time does the second plane overtake the first?

    asked by Mercedes
  65. introduction to computing

    Write a C++ program that will accept the marks in a test for a group of 25 students then calculate and display the average mark and highest marks in class.

    asked by jane
  66. Science

    13 of the19 lives lost you to the Wichita Andover tornado were at the mobile home park in Andover. Even though there was some advanced warning what could explain the relatively high death toll at this location?

    asked by Daniela
  67. Physics

    Can someone walk me through how to solve this? Any help is much appreciated! Two masses moving along a straight line undergo a front-to-back collision. The masses are m1= 60.0 kg, with initial velocity v1 = 17.0 m/s, and m2 = 26.0 kg, with initial velocity

    asked by James
  68. math

    A group of 15 of your friends wants to go to a concert. Unfortunately, you only have 10 tickets available to give to your friends. How many different groups of friends could you take to the concert?

    asked by Meredith Grey
  69. History Please

    All of these describe life on the home front during World War II EXCEPT (1 point) citizens conserved goods. farmers planted more crops.* industrial leaders closed factories. many industries needed workers. 2. The Fair Employment Practices Committee was

    asked by SmartyPants
  70. Math

    Hi. I have a few math questions I need some help with. Hamid Husain took out a $50,000, 5-year term policy at age 50. The premium per $1,000 was $4.80. He will be 55 years old this year. The premium per $1,000 will be $6.58. What is the percent increase?

    asked by Kailey
  71. genetics

    Auxotrophs are organisms that can grow: A.on minimal media. B.only with sunlight. C.only on amino acid supplemented media. D.only on vitamin supplemented media. E.on any media.

    asked by Lucy
  72. Pre algebra

    1. Prepare 20 mL of dextrose 7.5% weight in volume using dextrose 5% and dextrose 50%. how many milliliters of each will be needed? 2. A chemical comes in quantity of 25 vials and has an AWP of $135.the store has an agreement with the contractor to

    asked by Kate
  73. math

    six cards are numbered 1 1 6 7 11 and 12 cards are chosen without replacement until a card number 1 is chosen. find the probability that this happens before the third card is chosen

    asked by Shruti
  74. Physics

    A 10-g fridge magnet is supposed to hold a 2.0-g paper on the stainless steel fridge door. The normal force of 0.19 N is insufficient to keep them in place, and the paper and magnet accelerate down the fridge at 0.150 m/s2 when the fridge door is slammed.

    asked by Trex
  75. Biology

    3) For each of the following characteristics, will the migration of the protein speed up, slow down, or remain unchanged if you do not add SDS? a)increase molecular weight of protein b) increase concentration of acrylamide c)decrease charge on protein d)

    asked by Ryan
  76. MEDICAL CODING

    Use the CPT, ICD-9-CM, and ICD-10-CM manuals to assign the appropriate Emergency department visit, procedure, modifier, and diagnoses codes to the following case scenario. 1. Use the CPT, ICD-9-CM, and ICD-10-CM Manuals to assign the appropriate Emergency

    asked by MEHUL
  77. mathematical physics

    Solve the following ODE using the power series method (1-x^2)y"-2xy'+2y = 0

    asked by gourav
  78. math

    Kool Klothes has determined that the revenue function for selling x thousand pairs of shorts is R(x) = -5x^2 + 21x. The cost function C(x) = 2x + 10 is the cost of producing the shorts. a) How many pairs of shorts must the company sell in order to break

    asked by Krystal
  79. math

    If you have a bag of alphabet tiles that contains one tile for each letter of the alphabet. What is the probability that you will pull a vowel?

    asked by Stephanie
  80. critical thinking

    Which of the following is not a primary sentence pattern for asking questions in English? A. Helping verb, subject, main verb B. Subject, action verb, direct object, helping verb C. Adverb, verb, subject D. Adjective/pronoun, subject, interrogative verb my

    asked by Saddia
  81. genetics

    The two most basic steps of DNA replication are: A.primase causes primer to bind the template and ligase copies the template. B.helicase unwinds the template and DNA polymerase binds the template. C.leading strand is copied first and lagging strand is

    asked by Lucy
  82. Physics

    A 51 kg block of metal has specific heat of 222 j/kg c. how heat energy must be applied to the block of metal to raise its temperature from 10 c to 22 c?

    asked by Heather
  83. heat transfer

    a. Steam at 230oC flows through a steel pipe ( = 15/. ) whose inner and outer diameters are 9 cm and 10 cm, respectively in an environment at 15oC. The pipe is insulated with 5 cm thick fiberglass ( = 0.035/. ). The given heat transfer coefficients

    asked by Anonymous
  84. analytical tools

    The survival rate during a risky operation for patients with no other hope of survival is 74%. What is the probability that exactly four of the next five patients survive this operation? (Give your answer correct to three decimal places.)

    asked by Anonymous
  85. History

    . In __________ trials, the judge is both the trier of law and the trier of fact. A) de novo B) bench C) jury D) pro se I have a feeling it could be bench

    asked by John
  86. Math

    Horses are measured in units called hands. One hand equals 1/3 foot. A horse is 5 1/3 feet tall. How tall is this horse in hands?

    asked by Anonymous
  87. physics

    A solid of relative density 1.25 is found to weigh 12g in water find its weight in air

    asked by mahak
  88. critical thinking

    Which of the following is not a way of analyzing a reading? A. Dismiss the reading as someone's opinion B. Devise critical questions C. Use a reading-response worksheet D. Use annotation my answer is a.

    asked by Saddia
  89. genetics

    What is a replication bubble? A.A complex of replication enzymes on the DNA template strand B.A DNA sequence that initiates replication C.A tangle of denatured DNA strands near the replication fork D.A locally denatured segment of DNA where replication

    asked by Lucy
  90. English

    Suppose you're writing an essay about the process of changing a tire on your car. Which of the following is the best example of evidence to support your thesis? A. The first tires were bands of iron that were fitted by wheelwrights onto the rims of wooden

    asked by Cristine
  91. English

    Which of the following is a strong introductory sentence? A. Should each of the United States allow citizens to openly carry a weapon? B. I don’t agree with any open-carry laws. C. This essay will explain the open-carry laws in the United States. D. To

    asked by Cristine
  92. heat transfer

    the temperature in deep space is close to absolute zero,which presents thermal challenges for the astronauts who do space walks.propose a design for the clothing of the astronauts that will be most suitable for the thermal environment in space.defend the

    asked by whj
  93. physics

    In a farm yard, a 20.0-kg light is suspended from a light beam on the end of a tall pole. The beam is supported by an arm that attaches to the beam at the suspension point of the light, as shown in the diagram below. The arm makes an angle of 50.0 with

    asked by Trex
  94. circle and the Pythagorean theorem

    tangent PT, QM = 12, M < P = 30°

    asked by ray
  95. Chemistry

    If there are 57.6 mL of water that change from 19.4 degrees Celsius to 34.7 degrees Celsius, calculate the number of joules of energy transferred in the form of heat. Round to the nearest whole number. The specific heat capacity of water is 4.18 J/g*C and

    asked by Alex
  96. critical thinking

    What is the difference between a clause and a phrase? A. A clause has a subject and a verb, but a phrase doesn't. B. A phrase has a subject and a verb, but a clause doesn't. C. A phrase always contains a preposition. D. A clause always contains a

    asked by Saddia
  97. Science Help

    Which of the following carries blood to every part of the body? (1 point) blood vessels the heart lymph nodes the ventricles 7. Nutrients and oxygen diffuse into body cells from ______. (1 point) arteries the aorta capillaries veins 8. The leading cause of

    asked by YOLO
  98. maths

    If A+B=90° then what is the range of SinA•SinB

    asked by meet
  99. critical thinking

    Which of the following is not a primary sentence pattern for asking questions in English? A. Helping verb, subject, main verb B. Subject, action verb, direct object, helping verb C. Adverb, verb, subject D. Adjective/pronoun, subject, interrogative verb my

    asked by Saddia
  100. general chemistry

    How many grams of NaOH are required to prepare 250 mL of 0.205 M NaOH? SHOW ALL WORK and include units. I don't know how to set this up.

    asked by cassie
  101. algebra

    consider rolling one standard six sided die. what is the probability of rolling a 2

    asked by Meredith Grey
  102. precalculus

    what is (sqrt 2, -pi/4) in rectangular coordinates? what is (-sqrt 6, -sqrt 2) in polar coordinates?

    asked by JGF
  103. Criminal Justice

    15. Which of the following is not an example of an ethical dilemma a defense attorney may face? A) the prosecutor's winning record. B) client perjury. C) defense receipt of physical evidence. D) a confession in confidence.

    asked by Samantha
  104. Probability and Statistcis

    Students from a statistics class were asked to record their height in inches. The heights ( as recorded) were: 65, 72, 68, 64, 60, 55, 73, 71, 52, 63, 61, 74, 69, 67, 74, 50, 4, 75, 67, 62, 66, 80, 64, 65 Find five number summary.

    asked by Anonymous
  105. Chemistry

    Can a pH be below 1?

    asked by itskath
  106. MEDICAL CODING

    Use the CPT, ICD-9-CM, and ICD-10-CM manuals to assign the appropriate procedure, modifier, and diagnosis codes to the following case scenario. Preoperative Diagnosis: Right Pneumothorax Postoperative Diagnosis: Same Procedure Performed: Placement of

    asked by MEHUL
  107. fluid mechanics

    A dam has been constructed of a large cylindrical pipe 10ft in diameter and 3ft long. Calculate the net vertical and horizontal components of the fluid(water) force on this dam.

    asked by Kim
  108. critical thinking

    When developing strategies for writing, which of the following is not a good strategy? A. Use school support and guidance B. Rely more on your own experience than on the readings assigned. C. Focus on learning and the process of learning. D. Plan for more

    asked by Saddia
  109. critical thinking

    Which of the following is not a way to succeed in college? A. Be flexible with planning activities B. avoid procrastination C. establish realistic goals for yourself D. organize a work space my answer is b.

    asked by Saddia
  110. Science

    One troy ounce of gold is worth $380. There are 33.8 grams per troy ounce. You have a stock colloidal solution of a very fine gold dust. Its concentration is .1% w/v. from this solution, 1 ml is placed in 9 ml of an isotonic, pH buffered solution to make a

    asked by Baylee
  111. critical thinking

    When determining whether or not to use a source for your research, which of the following is the best choice? A. Use statistical data from a credible source B. If two opinions are similar about something, they must be right C. Use whatever you remember

    asked by Saddia
  112. "The Nobel Lecture" by Alexander Solzhenitsyn

    1. What does Solzhenitsyn mean by "internal affairs"? 2. How did writers of the world influence Solzhenitsyn's career? 3. What connection does Solzhenitsyn see between lies and violence? A: Solzhenitsyn sees that violence can only be concealed by lies, and

    asked by Victoria
  113. Chemistry

    Determine the number of molecules of the compound iron phosphate with 129.68 g Fe3(PO4)2

    asked by Sheila
  114. trig

    If cos A= -6/7, in quadrant 2, determine the exact value of tan 2A I don't understand how to do this?

    asked by Jennifer
  115. precalculus

    Let z1= 3-3sqrt 3i and z2= -11+i. write all answers in polar form with 0< theta< 2pi A. what is z1 in polar form? B. what is z2 in polar form? C. what is z1z2 D. what is z1/z2 E. what is (z1)^5 F. what is (z2) ^1/4

    asked by JGF
  116. Criminal Justice/Probation & parole

    The effectiveness of probation and parole: A. is quite high. B. is quite low. C. is in need of further research. D. has no objective standard. I think it's C, but not sure.

    asked by Pat
  117. Math

    How much more would there be at the end of 8 years if $4000 were invested at 14% compounded quarterly rather than semiannually? (Round your answer to the nearest cent.)

    asked by Ashley
  118. Biology

    What does b-mercaptoethanol do to secretory proteins?also...If you forgot to add b-mercaptoethanol to a secretory protein, would the protein's migration likely speed up or slow down? Why?

    asked by Ryan
  119. chemistry

    269 mL of a 0.2089 M sodium carbonate (Na2CO3) solution is prepared and labelled "Solution A".

    asked by B
  120. Algebra

    The frame of a picture is 30 cm by 36 cm outside. If the area of the picture (inner rectangle) is 480 square cm, what is the width of the uniform border?

    asked by Yin
  121. Chemistry help

    Why is it important for the reaction beaker to be completely dry before weighing?

    asked by Anonymous
  122. Vector

    A boy can swim with a speed of 26metre per minute in still water. Be wants to swim across a 150metere wide river from point A to point B directly opposite on the other side of the River.The river flows at 10metre per minute (a)if he always swims in the

    asked by Ben
  123. Genetics

    The genome of Elradicus hypotheticus consists of 3 x 105 bp of B-DNA. a. How many turns are present in the double-helix? b. What is the length of the DNA in μm?

    asked by Yasmin
  124. precalculus

    what is (sqrt 2, -pi/4) in rectangular coordinates? what is (-sqrt 6, -sqrt 2) in polar coordinates?

    asked by JGF
  125. last question!! Criminology

    . The view that a defense attorney's main concern is looking out for the client's interest; that nothing matters more to them than securing favorable plea agreements or, ideally, acquittals, is described as characterizing the defense attorney as a: A)

    asked by Heather
  126. Science Please

    Which of the following carries blood to every part of the body? (1 point) blood vessels the heart lymph nodes the ventricles 7. Nutrients and oxygen diffuse into body cells from ______. (1 point) arteries the aorta capillaries veins 8. The leading cause of

    asked by SmartyPants
  127. math

    2 lines are given by kx+6y-5=0 and 3x+2y+4=0 if they are parrallel what is the value of k

    asked by Jack
  128. critical thinking

    All of the following exhibit scholastic integrity when best communicating with your instructors except which one? A. Ask questions if you don't understand something. B. Use only electronic communication if invited to do so. C. If you don't agree with

    asked by Saddia
  129. critical thinking

    In the following sentence, identify the prepositional phrase, and tell whether it acts as an adjective or adverb. The children found the pictures in the book interesting. End of exam A. the pictures in; adjective B. The children; adjective C. in the book;

    asked by Saddia
  130. Fundamentals of taxation 2015

    Robert & Becky( husband & wife) are both foyer and they contribute money to various organization each year. They file a joint return and their adjusted gross income for 2014 is $ 100,000.They contributed to the following organization in 2014 : $ 5,000 to

    asked by eric nguyen
  131. genetics

    complimentary base pairing allows for: A. spontaneous mutations to occur B. genes to be expressed as a phenotype C. DNA to serve as its own template for replication D. covalent bonds to form between the opposite bases E. The equalization of the purine and

    asked by Lucy
  132. genetics

    Antiparallel means that: A.the two polynucleotide chains run in opposite directions. B.each DNA molecule consists of one old and one new strand. C.opposite strands are held together by base pairing. D.the helix twists to the right. E.there is complementary

    asked by Lucy
  133. algebra

    a hockey team has red sweater, white swearter, and blue sweater. the team uses red or blue pants and red or white socks. find the number of possible uniforms

    asked by Meredith Grey
  134. chemistry

    Consider the reaction 2 NO2 (g) ⇌ 2 NO (g) + O2 (g). If the initial partial pressure of NO2 (g) is 3.0 bar, and x is the equilibrium pressure of O2 (g), what is the correct equilibrium relation?

    asked by lee
  135. genetics

    Though this question sucks, which enzyme elongates the new DNA strand starting at an RNA primer? A.DNA polymerase I B.DNA polymerase III C.DNA polymerase II D.DNA ligase E.RNA polymerase

    asked by Lucy
  136. History Check Please (Don't Be Mean)

    1. LULAC supported Coal miners’ pension rights. union interests. Mexican Americans’ rights. African Americans’ rights. 2. The federal government tried to help farmers in all these ways EXCEPT paying them to plant trees as windbreaks. paying them to

    asked by SmartyPants
  137. Algebra 2

    Compare the graphs of the inverse variations by comparing asymptotes, similar points, lines of reflections, and quadrants. y=-0.7/x and y=-0.9/x

    asked by Jasmine
  138. Chemistry

    A sodium chloride solution has a density of 1.22 g/mL. How many moles of NaCl are dissolved in 10.0 mL of the solution? The density of water is 1.00 g/mL. My solution: ? mol NaCl = 10 mL*1.22 g/1mL*1mL/58.5g The correct answer is 3.76E-2 mol. Please help!

    asked by Anonymous
  139. math

    Sara wants to increase her training so that she does 70 sit-ups in week 2. Type an equation that shows how many more sit-ups Sarah would have to do in week 2 my answer is 65+t=70 the value of the t=5

    asked by siulaniperez
  140. Psychology & operational definition

    I came up with some examples on my own, but I'm not sure if I'm heading in the correct direction. Any help would be great. Here are my examples: 1. My grandmother's recipe for red velvet cake 2. An actress has memorized her lines when she can repeat all of

    asked by Marina
  141. physics

    a 70 kg block rests on the earth's surface. How much energy is required to move the block very far from the earth, ending up at rest again?

    asked by paul
  142. MEDICAL CODING

    Use the CPT manual to assign the appropriate procedure code to the following exercise. Ureteral endoscopy through an established ureterostomy with irrigation and the removal of a foreign body. CPT Code: _____________

    asked by MEHUL
  143. English

    Do you eat a lot of fast food? - Yes, I do. - It's not good for your health. What do you have to do? -I'd better not eat a lot of fast food. -------------------------------------- Do you play computer games too much? - Yes, I do. - It not desirable because

    asked by rfvv
  144. physic

    What is difference between cohessive and adhessive force

    asked by rajeev
  145. Math

    1. A door has a lock with a 5-digit keypad. To unlock the door, a person must enter a passcode consisting of three different digits, with each digit entered in the correct order. What is the probability that a randomly chosen passcode consisting of three

    asked by Linda
  146. thermodynamics and static machenics

    For thermocouple,the value of C1 and C2 are 40.0×10^-6 v°/c and -0.01×10^-6 v°/c^2 respectively.If the thermo emf between the junction is 2.3×10^-2 v and the cold junction is kept at the ice point,calculate the temperature of the hot junction.

    asked by gourav
  147. math

    Mr Lopez is putting a fence around his vegetable garden.The garden is shaped like a rectangle.The longer sides are 14 feet long and he shorter sides are 9 and a half feet long.How much fencing should he buy?

    asked by Hareem
  148. Physics

    What is the linear speed of a child standing 0.4 m from the centre of a steadily rotating merry go around? It makes one complete revolution in 16.0 s.

    asked by Bollah-braz
  149. Homeroom work

    ON a multiple choice question with 4 options, what are your chances of guessing correctly if you eliminate two answers? 10% 25% 33% 50% Is it 50%?

    asked by Jae
  150. Math

    There are 47 students in the marching band. There are 5 students in te first row, and the rest are in equal rows of 6. How many students are in each of the 6 rows?

    asked by Brianna
  151. critical thinking

    What is the difference between abstract nouns and concrete nouns? A. Concrete nouns can be identified by the senses, but abstract nouns can't. B. Abstract nouns describe something, but concrete nouns don't. C. Abstract nouns are specific, but concrete

    asked by Saddia
  152. Biology

    3) For each of the following characteristics, will the migration of the protein speed up, slow down, or remain unchanged if you do not add SDS? a)increase molecular weight of protein b) increase concentration of acrylamide c)decrease charge on protein d)

    asked by Ryan
  153. Biology

    What does b-mercaptoethanol do to secretory proteins?also...If you forgot to add b-mercaptoethanol to a secretory protein, would the protein's migration likely speed up or slow down? Why?

    asked by Ryan
  154. genetics

    I PCR out a mutated gene in a patient with Lisenbee chorea (the inability to dance in a coordinated fashion) and I compare it to another patient with that same disease phenotype. One subject had a mutation on chromosome 4, and the other subject couldn't

    asked by Lucy
  155. genetics

    Which of the following are the purine nucleotides in DNA? A.Adenine and thymine B.Cytosine and guanine C.Adenine and cytosine D.Guanine and adenine E.Thymine and uracil

    asked by Lucy
  156. genetics

    Wild type, or wt, refers to the genotype that is the typical genotype found in nature. True False

    asked by Lucy
  157. Math

    I had a table of values. X / Y -3/ 2.5 -2/ 5 -1/ 6.5 0 / 7 It asks without graphing. Does it open upward or downward. I got that in the quadratic equation. a= -0.5 And if a is smaller than 0. It opens downward However. The text book says it opens upward.

    asked by Anonymous
  158. Criminal Justice/Probation & Parole

    Research reveals that supervision providing treatment and not just control has __________ rates of success. A. significantly greater B. average C. undetermined D. significantly lower I think it's A, but not sure

    asked by Pat
  159. Urgent geometry help

    On a isosceles triangle, how would you find the area and perimeter when given the bases: 12 and 32 and a 45 degree angle?

    asked by Anonymous
  160. Spanish

    My question is "¿Qué le diste a tu madre o a tu padre en su cumpleaños?" This is my answer, please tell me if I wrote it right. "Para los cumpleaños de mis padres le di a mi padre una taza super hombre y mi madre una pintura enmarcada de una mariposa."

    asked by Rachel
  161. MEDICAL CODING

    Use the CPT manual to assign the appropriate procedure code to the following excerise. 2. Plastic repair of the cleft lip/nasal deformity primary bilateral, one or two stages. CPT Code: ___________

    asked by MEHUL
  162. physics

    ​21.​At the airport, a person pushes a luggage cart with an applied force of 150 N [forward]. Assuming the cart and luggage have a total mass of 46.0 kg and the force of friction is 95.0 N [backward], the magnitude of the acceleration of the luggage is

    asked by Trex
  163. Chemistry, pre Algebra

    Glycopyrrolste comes in quantity of 25 vials and has an AWP of $135.the store has an agreement with the contractor to purchase that chemical at the AWP minus 10% the insurer is willing to pay the AWP plus 3 % plus a $4 dispensing fee. a patient on this

    asked by Kate
  164. mathematical physics

    Obtain all the first and second order partial derivatives of the function: f( x, y ) = In(I+xy^2)

    asked by gourav
  165. physics

    When are the electric field lines are parallel to each other

    asked by rajeev
  166. Literacy

    10 facts about sugar from Belize

    asked by Daniel
  167. economics

    If a new breakthrough in manufacturing technology reduces the cost of producing cricket bats by half, what would happen to the demand for cricket bats and demand for cricket balls?The answer is the demand for cricket bats unchanged, the demand for cricket

    asked by Lim
  168. pre algebra

    2. 2x^2+8-4x+3x-6x^2+7 a. -8x^2-7x+15 b. -4x^2-x+15 c. 4x^2+x+15 d. 8x^2+7x+15 3. 4x^2+8x-11x+6-5x^2+2 a. -x^2-3x+8 b. -x^2+3x+8 c. x^2-3x+8 d. x^2+3x+8 can u please help me out with these questions steve or damon or ms sue. pls help me

    asked by Oscar
  169. Biology

    For each of the following characteristics, will the migration of the protein speed up, slow down, or remain unchanged if you do not add SDS? a)increase molecular weight of protein b) increase concentration of acrylamide c)decrease charge on protein d)

    asked by Ryan
  170. maths literacy,tourism,business studies and economics

    Which careers should I follow with these subjects?

    asked by mthe
  171. abiapoly heat energy

    500g of copper is heated from 30 degree celcius to 120 degree celcius what is the quantity of heat supplied b.if the same quantity of heat is supplied to 300g of water initial at 30degree what will be the final temperature?

    asked by sandra
  172. To Kevin

    A little time-out for you so you can ponder the wisdom of NOT putting your subject in the subject box. Nonsense is not appreciated.

    asked by Writeacher
  173. Maths

    I must come up with an maths model to solve this... Sally is baking some biscuits for a party. It takes 5/6 of a cup of mixture to make one batch. How many batches can she make out of cups of mixtures?

    asked by Sarah
  174. math

    Find the angle of inclination of the equation 3x+2y+4=0

    asked by Joe
  175. math

    If m=n,then m−n = n−m = 0. Give a counterexample to show that the conditional is false

    asked by Anonymous
  176. biology/evolution

    many of the orchids alive today have nectar that doesn't have any sugar in it. Why are there presently-living orchids whose nectar lacks sugar?

    asked by plsss
  177. research

    What is the process of contributing a research paper to the MIT Sloan Sports Analytics Conference like, from initial submission all the way through presenting your poster and/or talk while attending the conference?

    asked by JGF
  178. Chemistry

    A sodium chloride solution has a density of 1.22 g/mL. How many moles of NaCl are dissolved in 10.0 mL of the solution? The density of water is 1.00 g/mL. My solution: ? mol NaCl = 10 mL*1.22 g/1mL*1mL/58.5g The correct answer is 3.76*10^2 mol. Please

    asked by Anonymous
  179. English

    I recently wrote a research proposal on teamwork and the only feedback given was to "focus on a specific aspect of teamwork". What does that mean and do you have any suggestions? I was thinking that she could be talking about why it's important or

    asked by Nikki
  180. Criminal Justice

    . The largest category of convictions for felonies is: A) drug offenses. B) violent crimes. C) sexual crimes. D) property crimes.

    asked by Sarah
  181. Math

    What is the final volume of 100ml,2 oz, and 1 tsp ?

    asked by Jessica Watson
  182. Statistics

    I have a bunch of questions to work on with this specific scenario but I was hoping someone can just help me get started on the first one because I'm having trouble getting started and I'll do the rest on my own.Thanks for any help! In a southern state, it

    asked by Emily
  183. critial thinking

    Which of the following is an antonym of the word happy? A. Miserable B. Blissful C. Jovial D. Joyful my answer is a.

    asked by Saddia
  184. Math

    Is this correct- 5 squared + 8 divided by 2 = 29

    asked by Angel
  185. genetics

    Which of the following does not occur during the PCR reactions? A.Changes in the reaction temperature by a thermocycler B.Denaturation at high temperatures C.Synthesis of oligonucleotide primers D.Extension of primers by DNA polymerase E.Annealing of

    asked by Lucy
  186. Chemistry

    I found this on the internet and I need an explanation. Q: You want to make sure a large weather balloon does not burst and wish to check the temperature at 3000 meters altitude. The balloon manufacture guarantees the balloon up to 60.0 Liters in size.

    asked by Jane
  187. genetics

    The definition of transformation is: A.the shift of genetic information from DNA to protein. B.the recombination of DNA strands during meiosis C.the uptake of genetic information by a cell from the environment. D.the combining of DNA during fertilization.

    asked by Lucy
  188. History Check Please

    Dams were constructed on the Colorado River to end the drought. generate electricity. destroy crops. discourage rice farming. 2. Contour plowing is a farming method of plowing around hills instead of straight up and down. planting clover. plowing around

    asked by SmartyPants
  189. English

    What does these sentence mean to do?what type of basis of comparison exists for the topic that you chose. ?what common ground or common elements do the two subjects share?

    asked by Shelly
  190. Math

    Pydrotinces comes in 50 mg/mL. A child is to get 2 mg. The volume in a miniscule of 0.04mL, which is really had to measure. Prepare a dilution so that final concentration is 5mg/mL. How much diluent well you need is the original products is 50mg/mL and you

    asked by Kate
  191. Psychology help

    What's a good theme that goes with the idea of encouragement?

    asked by Anonymous
  192. algebra

    how many times can a combined 6 be rolled with two standard dice

    asked by Meredith Grey
  193. Math

    A rectangular house measures 75ft by 50ft. Find the cost of installing gutters around the house if the cost is $4per foot?

    asked by Keisha
  194. precalculus

    algebraically identify the symmetries of r^2=4cos2theta

    asked by JGF
  195. science

    based on the masses of CaCl2 and Na3PO4 you determined from the periodic table, what mass combining ratio would you predict?

    asked by alex
  196. Algebra

    hello.i have to factor this expression. 3y^2-16y-12 i did my work and i got (y-4)(y+1) is it right?

    asked by HI
  197. Biology

    In anaphase of mitosis, the sister chromatids are separated and pulled to the poles. How do these chromatids, which are only half of a duplicated chromosome, become chromosomes? As I understand it, mitosis produces daughter cells that are identical to the

    asked by Anonymous
  198. Algebra

    hi. i have to factor this expression. 3y^2-16y-12 i got (y-4)(y+1) i know it not right but i don't know what i did wrong.

    asked by HI
  199. English

    In this sentence They also receive travel expenses while they serve. Is the dependent clause while they serve and the independent clause they also receive travel expenses?

    asked by Kelley
  200. Chemistry help

    Why it is important for there to be no further bubbling before the final mass of the reaction beaker is obtained?

    asked by Anonymous
  201. mathematical physics

    Determine whether the following vector field is incompressible or irrotational at the point (0,1,2). Vector F = [x/x^2+y^2+z^2]i^+[y/x^2+y^2+z^2]j^+[z/x^2+y^2+z^2]k^

    asked by gourav
  202. mathematical physics

    Show that vector del(r^2) = 2vector r

    asked by gourav
  203. mathematical physics

    Show that for any scaler field phi( x,y,z ) Vector del×(vector del phi ) = vector 0

    asked by gourav
  204. mathematical physics

    Determine the scale factors for an orthogonal coordinate system (s,t,v) whose coordinates are related to the Cartesian by the following equations: x = 2st, y = s^2-t^2, z = v.

    asked by gourav
  205. Algebra 1

    what method would you use to solve y=x?

    asked by Steve
  206. mathematical physics

    A series circuit consist of a resister with R = 200ohm, an inductor with L = 1H, a capacitor with C = 0.002F, and a 12V battery.If the initial charge and current are both O, Find the charge and current at time t.

    asked by gourav
  207. Writing

    can an intro in a essay be less than 5 sentences long?

    asked by Zoe
  208. Biology

    What does b-mercaptoethanol do to secretory proteins?If you forgot to add b-mercaptoethanol to a secretory protein, would the protein's migration likely speed up or slow down? Why?

    asked by Ryan
  209. algebra. . please help

    Simplify 4 _____ 3+ square root of 5

    asked by lexi
  210. fluid mechanics

    A dam has been constructed of a large cylindrical pipe 10ft in diameter an 3ft long. Calcualte the net vertical and horizontal components of the fluid(water) force on this dam.

    asked by Kim
  211. Biology

    What does b-mercaptoethanol do to secretory proteins?If you forgot to add b-mercaptoethanol to a secretory protein, would the protein's migration likely speed up or slow down? Why?

    asked by Ryan
  212. Math

    1. In the xy-plane, a circle has its center at the point with coordinates (4,3), and the origin lies on the circle. The point with which of the following coordinates also lies on the circle? A. (-4,-3) B. (3,4) C. (6,8) D. (7,7) E. (9,8) How do you do

    asked by Winnie
  213. math

    Squares of side x units are cut of the corners of a square piece of cardboard of side 6 units. The sides are then folded to make an open box. Calculate the volume of the box in terms of x.

    asked by Ntando Shongwe
  214. CDA

    One of the children in your care asks, "Why can't Sonya walk?" in reference to a four-year-old child with cerebral palsy. The best response is A. "Sonya has special needs so please be kind to her." B. "It doesn't matter, she's still our friend, right?" C.

    asked by liliana
  215. thermodynamics and statistical machenics

    Consider sun as a black body whose interior consist of photons gas at T = 3×10^6k. Calculate the energy density of the solar radiations. Take (sigma) = 7.56×10^-16jm^-3k^-4

    asked by gourav
  216. precalculus

    algebraically identify the symmetries of r^2=4cos2theta

    asked by JGF
  217. precalculus

    Let z1= 3-3sqrt 3i and z2= -11+i. write all answers in polar form with 0< theta< 2pi A. what is z1 in polar form? B. what is z2 in polar form? C. what is z1z2 D. what is z1/z2 E. what is (z1)^5 F. what is (z2) ^1/4

    asked by JGF
  218. English

    "Was that (she, her) on the patio?" I think her?

    asked by Katelyn
  219. Science Please

    Which of the following carries blood to every part of the body? (1 point) blood vessels the heart lymph nodes the ventricles 7. Nutrients and oxygen diffuse into body cells from ______. (1 point) arteries the aorta capillaries veins 8. The leading cause of

    asked by SmartyPants
  220. Calculus Linearizations

    Use this observation and the linear approximation to estimate (15.9)^1/2 I know the answer is 3.9875, I just need someone to explain the steps so I can do problems similar to this one.

    asked by Ryan kustin
  221. Social studies

    what reforms did Britain make to improve the workers lives

    asked by Andres
  222. English

    Is this sentence?. In the Midwest, a common food that is found is buckeyes, which are also commonly found in the state of Ohio.

    asked by m
  223. genetics

    DNA is often purified by DNA electrophoresis, like in old-school DNA sequencing. In DNA electrophoresis, fragment separation is based on _____. (Best answer) A.fragment charge. B.fragment size. C.fragment sequence. D.fragment G-C content. E. fragment A-T

    asked by Lucy
  224. genetics

    DNA markers, or variant non-coding regions of DNA, are DNA polymorphisms that are useful for genetic mapping. True False

    asked by Lucy
  225. genetics

    With PCR, one gene is all that is necessary to create a useful genetic fingerprint to discriminate between individuals. True False

    asked by Lucy
  226. Advanced functions

    If cos A= -6/7, in quadrant 2, determine the exact value of tan 2A I don't understand how to do this?

    asked by Jennifer
  227. genetics

    In E. coli, replication begins at which chromosome site? A.The replication fork B.Hfr C.oriC D.TATA box E.Pribnow box

    asked by Lucy
  228. cda

    When selecting books for young children, you should avoid those that include A. exaggerated characteristics based on race or gender. B. illustrations depicting strong females and sensitive males. C. unusual characters that deviate from the norm. D.

    asked by liliana
  229. English

    What is the difference between 'plate' and 'dish'?

    asked by rfvv