Most popular questions and responses by Frank
  1. Statistics

    1) A null Hypothesis assumes that a process is producing no more than a maximum allowable rate of defective items. The Type II error is to conclude that the process? 2) If 95% confidence limits for the mean Mu turn out to be (6.5,8.5)

    asked on June 13, 2005
  2. history

    Which option accurately describes Martin Luther’s influence on the Protestant church? A. Under Luther’s recommendation, Protestant clergy members were to be known as Imam, Sheik, or Mullah. B. Under Luther’s leadership, Catholic clergy members led

    asked on December 2, 2017
  3. History

    Which option accurately describes how the philosophy of humanism impacted the Spanish Inquisition? A. Catholic and Protestant inquisitors combined forces using humanist philosophy as a backbone to justify persecuting Muslims. B. Humanist philosopher

    asked on December 2, 2017
  4. Physics

    Please someone help me I'm desperate!!!! Two steel guitar strings have the same length. String A has a diameter of 0.59 mm and is under 420.0 N of tension. String B has a diameter of 1.3 mm and is under a tension of 840.0N . Find the ratio of the wave

    asked on November 20, 2009
  5. Intro to computers

    You have set up Remote Desktop for the company server running Server 2008 so that your users can RDP in from their XP workstations. Users are calling you saying that they are being denied the ability to remote in. What is the most likely reason? A. XP does

    asked on January 11, 2015
  6. World History

    Which option most accurately explains the shift toward humanist thought on people’s self-perceptions during the Renaissance? A.People who embraced humanist thought practiced flagellantism (whipped themselves with a belt) to repent for their sins.

    asked on December 1, 2017
  7. Physics

    An airplane has a velocity of 580 km/h relative to the moving air. At the same time, a wind blows northward with a speed of 92 km/h relative to earth. The airplane is moving in an easterly direction relative to earth. Find the speed of the airplane to

    asked on January 24, 2016
  8. spanish

    12. Tell what the following people will do tomorrow by changing the verb in the following statement to the future tense. Write the new verb in the blank. Ellos van a la playa.

    asked on April 25, 2013
  9. History

    Which mostaccurately characterizes the Eisenhower era? It was a time of economic sluggishness and social unrest, as Communist protest groups grew in influence. It was a decade of economic recession and hard times for Americans, but industrial expansion in

    asked on August 18, 2018
  10. College Physics

    2 questions: a)Assuming that water has a density of exactly 1 g/cm3 (cubed), find the mass of one cubic meter of water in kilograms. b)Suppose that it takes 10 hours to drain a container of 5700m3 (cubed) of water. What is the "mass flow rate," in

    asked on August 22, 2010
  11. Pre-Calculus

    An investor has $100,000 to invest in three types of bonds: short-term, intermediate-term, and long-term.How much should she invest in each type to satisfy the given conditions? Short-term bonds pay 4% annually, intermediate-term bonds pay 5%, and

    asked on February 28, 2016
  12. social studies

    What happened as a result of a meeting between A. Phillip Randolph and Franklin Roosevelt? a. The employment of skilled African American workers doubled*** b. African Americans threatened a march on Washington, D.C. to protest discrimination c. Roosevelt

    asked on May 31, 2018
  13. Principles of Finance

    A five-year project has an initial fixed asset investment of $335,000, an initial NWC investment of $35,000, and an annual OCF of −$34,000. The fixed asset is fully depreciated over the life of the project and has no salvage value. If the required return

    asked on October 31, 2015
  14. Math

    Using Netwon Law of Cool, the graph of T(t)=S+(T subscript --S)e^kt approaches a horizontal asymptote.What does the asymtote describe? a) intial temperature of the heated object b) temperature of the surrounding environment c) the difference in the

    asked on November 16, 2010
  15. Statistics

    Fortune magazine publishes an annual issue containing info on Fortune 500 companies. The following data show the six states with the largest number of Fortune 500 companies as well as the number of companies headquartered in those states. State # of

    asked on January 18, 2007
  16. chemistry

    Suppose 1.2x10^3 kg of C is mixed with 2.4x10^5g oxygen gas and carbon dioxide forms. 1. write the reaction and balance 2.which reactant is the limiting reagent and which reactant is in excess 3. How many grams of carbon dioxide will be formed.

    asked on September 27, 2014
  17. biochem

    I'm stuck on this question, not sure where to start. can you show detail and explain so that it helps me to understand it. help please, thanks. The value of delta G for the conversion of 3-phosphoglycerate to 2-phosphoglycerate (2PG) is +4.4kj/mol. If the

    asked on February 9, 2013
  18. Physics help----------thanks

    A charged cloud system produces an electric field in the air near the Earth's surface. A particle of charge -2.2 10-9 C is acted on by a downward electrostatic force of 3.0 10-6 N when placed in this field. (c) What is the magnitude of the gravitational

    asked on February 15, 2007
  19. physics

    Bob is pushing a box across the floor at a constant speed of 1.5 m/s, applying a horizontal force whose magnitude is 75 N. Alice is pushing an identical box across the floor at a constant speed of 3 m/s, applying a horizontal force. (a) What is the

    asked on September 10, 2012
  20. math

    lim as x approaches 0 of (3 sin 4x) / sin 3x

    asked on September 8, 2007
  21. Physics

    At some instant, a particle traveling in a horizontal circular path of radius 7.80 m has a total acceleration with a magnitude of 15.0 m/s2 and a constant tangential acceleration of 12.0 m/s2. Determine the speed of the particle at this instant(initial

    asked on September 12, 2014
  22. Principles of Finance

    Warmack Machine Shop is considering a four-year project to improve its production efficiency. Buying a new machine press for $490,000 is estimated to result in $200,000 in annual pretax cost savings. The press falls in the MACRS five-year class, and it

    asked on October 31, 2015
  23. Physics

    Four students measure the mass of an object, each using a different scale. They record their results as follows: Student A B C D Mass (g)49.06 49 50 49.1 E 49.061 Which student used the most precise scale?

    asked on March 2, 2013
  24. Chemistry

    How many grams of C4H10O can be melted by 2.0 x 103 J? Given ÄHfus = 7.27 kJ/mol

    asked on November 14, 2011
  25. Physics

    A 30 ohm resistor is connected to a 1.5 V battery. How much power is dissipated by the resistor? I'm confused of the formula to use here.

    asked on December 11, 2014
  26. chemistry

    What assumption did you make about the reaction of KMnO4 solution in those determinations where temp didn't change to allow k to be a constant?

    asked on September 6, 2015
  27. chemistry

    a solution is known to contain Cl, NO3, NO2, and SO4 ions. which of these ions can be positively identified?

    asked on November 8, 2015
  28. Principles of Finance

    Romo Enterprises needs someone to supply it with 121,000 cartons of machine screws per year to support its manufacturing needs over the next five years, and you’ve decided to bid on the contract. It will cost you $880,000 to install the equipment

    asked on October 31, 2015
  29. Physics help

    In Millikan's experiment, an oil drop of radius 1.516 µm and density 0.860 g/cm3 is suspended in chamber C (Figure 22-14) when a downward-pointing electric field of 1.92 105 N/C is applied. Find the charge on the drop, in terms of e. (Include the sign.)

    asked on February 15, 2007
  30. physics

    A body is projected at an angle of 30 degree with the horizontal at initial speed of 200m/s. In how many seconds will it reach the ground? How far from the point of projection will it strike?

    asked on August 14, 2018
  31. Statistics

    1) A null Hypothesis assumes that a process is producing no more than a maximum allowable rate of defective items. The Type II error is to conclude that the process? 2) If 95% confidence limits for the mean Mu turn out to be (6.5,8.5)

    asked on December 30, 2018
  32. MATH

    In a drawer Richard has 5 pairs of gloves. Each pair has a different color. On Day 1 Richard selects two individual gloves at random from the 10 gloves in the drawer. On Day 2 Richard selects 2 of the remaining 8 gloves at random and on Day 3 two of the

    asked on January 19, 2016
  33. chemistry

    A particular brand of toothpaste claims to contain 0.24 wt% sodium fluoride. What mass in grams of fluoride ion would be present in the average amount of toothpaste used to brush one's teeth, about two grams? Now this is a weight percent concentration

    asked on May 7, 2015
  34. Can you check an answer for me?

    There is a jar with 16 marbles. 4 are red, 7 are blue, and 5 are green. You select two marble at random. One marble is drawn and not replaced. Then a second marble is drawn. What is the probability of selecting a red marble and then another red marble? a.

    asked on February 20, 2016
  35. genetics

    Can anyone help me with Genetics? I have some problems and answers and need them explained to me. Here are some of the questions and answers: 1. Assume that a dihybrid cross is made in which the genes' loci are autosomal, independantly assorting, and

    asked on September 8, 2007
  36. C++

    The variables arr1 and arr2 have been declared as pointers to integers . An array of 10 elements has been allocated, its pointer assigned to arr1, and the elements initialized to some values . Allocate an array of 20 elements , assign its pointer to arr2,

    asked on March 16, 2014
  37. Chemistry PLEASE HELP!!!!!

    Say, for example, that you had prepared a Buffer C, in which you mixed 8.203 g of sodium acetate, NaC2H3O2, with 100.0 mL of 1.0 M acetic acid. a. What would be the initial pH of Buffer C? HOW???????

    asked on March 15, 2012
  38. Chemistry

    Calcium chloride has been used to melt ice from roadways. Given that the saturated solution is 32% calcium chloride by mass, estimate the freezing point. Express your answer in degrees Celsius. Assume that calcium chloride behaves ideally in solution.

    asked on September 14, 2010
  39. math

    divide. (12t^6 - 8t^8) ÷ (2t^3) a. 6t^3 - 8t^8 b. 12t^6 - 4t^5 c. 6t^2 - 8t^4 d. 6t^3 - 4t^5

    asked on May 14, 2018
  40. Life orientation

    Can you please help with this question which says'descrie a recent service delivery protest in your community or in the neibourhood.what are the problem that the community faced?.under the following topic:campaign with responsibility

    asked on May 16, 2015
  41. Statistics

    1) A null Hypothesis assumes that a process is producing no more than a maximum allowable rate of defective items. The Type II error is to conclude that the process? 2) If 95% confidence limits for the mean Mu turn out to be (6.5,8.5)

    asked on April 13, 2019
  42. math

    a lorry tank was 3/5 full of petrol , 21 liters was added and it is now 5/6 full. how many liters of petrol can the tank hold

    asked on May 15, 2017
  43. chemistry

    why wouldn't HCl be a good acid to use to determine the solubility of a silver precipitate in acid soulution?

    asked on November 8, 2015
  44. Chemistry

    Say, for example, that you had prepared a Buffer C, in which you mixed 8.203 g of sodium acetate, NaC2H3O2, with 100.0 mL of 1.0 M acetic acid. a. What would be the initial pH of Buffer C? HOW???????

    asked on March 15, 2012
  45. physics

    A bicycle traveled 150 meters west from point A to point B. Then it took the same route and came back to point A. It took a total of 2 minutes for the bicycle to return to point A. What is the average speed and average velocity of the bicycle?

    asked on January 24, 2013
  46. Chemistry

    Say, for example, that you had prepared a Buffer C, in which you mixed 8.203 g of sodium acetate, NaC2H3O2, with 100.0 mL of 1.0 M acetic acid. a. What would be the initial pH of Buffer C? HOW???????

    asked on March 15, 2012
  47. algebra

    you deposit 8500 dollars in an account that pays you 3.5 % interest compounded continuously. How long will it take for the money to triple?

    asked on October 31, 2010
  48. Physics

    During a parachute jump, the person is initially in free fall and then the parachute is opened. While in free fall, there are two forces acting on the jumper-gravity and air fraction. The faster the jumper is at falling, the more air friction there is. At

    asked on October 28, 2018
  49. Math-Ms sue

    Need Help with my final 2 questions can someone please help What is the additive inverse of 38? A –38 B. 38 C -(- -39) D. -(-(-(-38))) Which property is shown by –6+0= -6 Commutative property of addition identity property of addition Distributive

    asked on September 5, 2018
  50. algebra

    Solve the equation using the zero-product property. -9n(5n-5) a. -1/9, 1 b. 0,1***** c. -1/9,-1 d. 0,-1 Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2-6=x a. x=2,3 b. x=-2,3 ***** c. x=2,-3 d. x=-2,-3 How

    asked on May 14, 2018
  51. busieness

    questions 2) List the facts that have the most bearing on the decision. 4)Explain what each affected person would want you to do about the issue. 5)List three alternative actions and identify the best and worst case scenario for each alternative, anyone

    asked on May 8, 2011
  52. physics

    Would you see the same thin film interference pattern in a film of soap surrounded by air and a film of soap on glass? Why or why not?

    asked on January 6, 2010
  53. Calculus

    if u and v are differentiable functions, then does d(uv) = dudv

    asked on December 14, 2010
  54. Finite math

    A bank account pays interest at 12% compounded monthly, and has a monthly fee of $10, deducted at the end of each month. If $13,000 is deposited on January 1, 2013, how much is in the account on January 1, 2016? I have done some question related to

    asked on November 10, 2016
  55. physics

    Ann is driving down a street at 59 km/h. Suddenly a child runs into the street. If it takes Ann 0.774 s to react and apply the brakes, how far will she have moved before she begins to slow down? Answer in units of m

    asked on August 28, 2011
  56. life orientation

    What are the ways in which individuals, groups and broader south african community can be influenced by human rights violation?

    asked on April 23, 2019
  57. Chemistry

    Does any solid pbcl2 when 3.5mg nacl is dissolved in 0.25l of 0.12m pb(no3)2?

    asked on January 8, 2019
  58. C++

    // Program: name of program // Author: your name // Date Written: date you began writing the program /* Abstract: Brief description of the program */ Include in-line comments in the body of your program. You can convert temperature from degrees Celsius to

    asked on September 23, 2016
  59. Physics 11

    A mass of 10 kg, initially at rest on a horizontal frictionless surface, is acted upon by a horizontal force of 25 N. The speed of the mass after it has moved 5.0 m is: . a)  5.0 m/s 
 . b)  10 m/s 
 . c)  15m/s 
 . d)  125 m/s 
 . e)  250 m/s

    asked on August 15, 2016
  60. Math

    The range of a set of data is 15, and the interquartile range of the same set is 12. Which of the following statements is true about the set? A) The two ranges are close together, so there is probably an outlier in this set B) The two ranges are close

    asked on February 25, 2013
  61. history

    Why was military leadership allowed to take control of Japan after World War I A) Japan wanted to continue fighting the war to gain additional land. B) Japan feared communism and vowed to keep it out of the country. C) Military leaders stepped in to regain

    asked on May 31, 2018
  62. physics

    A 5.0 kg book is sitting on a table. Which describes the force acting on the book a. there are no forces acting on the book b. the force of the table upward is greater than the force of gravity downward c. the net force on the book is zero d. kinetic

    asked on February 26, 2010
  63. chemistry

    Given the following information: Ni(OH)2(s) Ni2+(aq) + 2 OH (aq) Ksp=6.0 x 10 16 H2O(l) H+(aq) + OH (aq) Kw=1.0 x 10 14 What is the equilibrium constant for the reaction, Ni(OH)2(s) + 2 H+(aq) Ni2+(aq)+ 2 H2O(l)

    asked on April 20, 2012
  64. chemistry

    the solubility product of lead(ii)sulphate in water is 1.6x10^-8 mol2 dm^-6. calculate the solubility of lead(ii)sulphate in (a)pure water (b)0.1M lead(ii)nitrate solution (c)0.01M sodium sulphate solution? then why is lead(ii)more soluble in them

    asked on May 24, 2019
  65. physics

    Find the x- and y-coordinates of the center of gravity of a 4.00 ft by 8.00 ft uniform sheet of plywood with the upper right quadrant removed as shown in the figure below. The dimensions of the cutout are a = 4.50 ft and b = 1.70 ft. HINTS: Think of the

    asked on October 28, 2014
  66. chemistry

    How would I make 500 ml's of a .35M NaCI solution. MW= 58.44 ( I know how to do the first part) How many micromoles of NaCI would be present in that solution? What would be the percentage of NaCI in that solution?

    asked on August 27, 2014
  67. AP Physics

    A woman at an airport is towing her 17.0 kg suitcase at constant speed by pulling on the strap at an angle of θ above the horizontal (Fig. P4.40). She pulls on the strap with a 26.0 N force, and the friction force on the suitcase is 10.0 N. What angle

    asked on October 5, 2010
  68. social studies

    Which of these events during the Age of Exploration was a cause of the other three? A) warfare increased as European nations competed for land and power B) advances in learning and technology made long ocean voyages possible C) Europeans brought food,

    asked on March 5, 2017
  69. physics

    A man is standing on a platform that is connected to a pulley arrangement, as the drawing shows. By pulling upward on the rope with a force the man can raise the platform and himself. The total mass of the man plus the platform is 94.7 kg. What pulling

    asked on June 30, 2013
  70. physics

    A spring has k = 88 N/m. Use a graph to determine the work needed to stretch it from x = 3.6 cm to x = 5.6 cm, where x is the displacement from its unstretched length.

    asked on November 17, 2009
  71. Physical Education

    I just want to know what different branched there are in taking a major in physical education. I know you can go into teaching, athletic training, but I want to know if there are any other areas. Physical tharapy, Sports Medicine, Phisiology of astronauts

    asked on December 2, 2006
  72. facial hair

    hi i know this isnt a homework question but i don't know where else to turn, and ive gotten help here before anyway the facial hair on the right side of my face grows a little faster than on my left side. is this normal? Yes, it is normal, and common.

    asked on August 24, 2005
  73. physics

    A 20 kg object is acted on by a conservative force given by F = -3.0 x - 5.0 x 2, with F in newtons and x in meters. Take the potential energy associated with the force to be zero when the object is at x = 0. (a) What is the potential energy of the system

    asked on October 9, 2014
  74. Calc

    A stone is thrown straight up from the edge of a roof, 625 feet above the ground, at a speed of 20 feet per second. A. Remembering that the acceleration due to gravity is -32 feet per second squared, how high is the stone 2 seconds later?

    asked on April 21, 2015
  75. math/physics

    A 8 kg mass is attached to a spring hanging from the ceiling and allowed to come to rest. assume that the spring constant is 40 n/ m and a damping constant is 3 N/m. At t=0 and external force of 2 sin(2t+PI/4)N is applied to the system. determine amp,

    asked on April 10, 2015
  76. Algebra 2

    {y=x^2+5x-3 {y-x=2 I think it's (5,1) and (-3,3) correct me if I'm wrong

    asked on October 12, 2019
  77. math

    simplify (7)/(2a)*5/(a^2) a. 35/(2a^2); where a ≠ 0 b. 35/(2a^2) i know the answer is one of these two and not c or d, but im not sure if its a or b

    asked on May 14, 2018
  78. physics

    A spinal spring,loaded with a piece of metal,extends by 10.5cm in air.When the metal is fully submerged in water,the spring extends by 6.8cm.Calculate the relative density of the metal using Hooke's law

    asked on June 6, 2016
  79. math

    Suppose that $20000 is invested at 7% interest compounded annually. Find that amount of money in the account after 1 year? need it broken down in algebra

    asked on September 3, 2012
  80. Pharmacy Tech

    An IV infusion order is written for 0.3 L of D5W/0.45% NS to run over 12 hours. The drp factor on th IV is set to 12 gtt/mL. What is the flow rate in drops per minute? Hint make sure your equation includes conversion factors for volume and timeso that the

    asked on November 3, 2010
  81. Intermediate Accounting

    Python Company leased equipment from Hope Leasing on January 1, 2006. Hope purchased the equipment at a cost of $232,666. Other information: Lease term 3 years Annual payments $90,000 on January 1 each year Life of asset 3 years Fair value of asset

    asked on November 29, 2008
  82. Chemistry

    How many grams of sodium sulphate (mol. wt. 142) are required to make 1.2 liters of 0.5N solution

    asked on September 19, 2013
  83. physics

    a mass of density bottle is 20g,when empty,70g when full of water and 55g when full of a second liquid.calculate the density of the liquid

    asked on April 14, 2011
  84. Maths

    In an exam a student scored 60 marks out of a possible 80. What percentage is this

    asked on November 1, 2015
  85. Physics

    Hi I'm kinda new here, and hope someone can please help me out. A person exerts a tangential force of 38.1 N on the rim of a disk-shaped merry-go-round of radius 2.74 m and mass 207 kg. If the merry-go-round starts at rest, what is its angular speed after

    asked on November 12, 2009
  86. Math- Ms Sue

    Hey Ms. Sue I was doing my test then i got stuck on this question can you help me out please thanks. What is the difference between |-3 | and -3?

    asked on September 5, 2018
  87. ICD-10 coding

    A patient with known carcinoma of the pancreatic head is admitted with a Hgb of 9.1. She has been receiving Docetaxel chemotherapy and the physician diagnosed this new anemia as an adverse effect of the chemoterapy. The patient is treated with darbepoetin

    asked on May 27, 2017
  88. chemistry

    balanced equation =2 H(2)+ 1 O(2) -> 2H(2)O A. What mass of H2O would be produced from7.4 mg of O2 B. What is the volume of H2O would be produced from 7.4kg of O2. Density of water = 1.000g/ml

    asked on September 20, 2014
  89. Foreign languages

    Could you please check if these disconnected sentences are possible? Thank you, Writeacher. 1)Italy sided with Germany (aslo allied with Germany) and declared war on the Western Powers. 2) Can I replace Italy with "she"? Example: Italy was invaded by the

    asked on May 2, 2012

    1- wave velocity is related to a- period b-wavelength c-amplitude d-all of these 2- wave amplitude is related to a- wave velocity b- frequency c- energy d-wave length 3-which of the following radiation has te smallest frequency? a- infrared b- visible c-

    asked on April 14, 2009
  91. Maximal area and dimensions of a window

    Hey Jiskha, came across this problem in my maths homework and I can't seem to solve it. Can someone maybe help me out? A Norman window has the shape of a rectangle with a semi circle on top; diameter of the semicircle exactly matches the width of the

    asked on November 14, 2016
  92. physics

    what will the volume of a gas at 309K if its volume at 215K is 3.42 L? Assume the pressure is constant

    asked on April 30, 2013
  93. math

    The base of a triangle is 5cm greater than the height. The area is 52cm^2. Find the height and length of the base.

    asked on May 18, 2012
  94. AP Chemistry

    Given: N2O4 (g) « 2NO2 (g) @ 25 degrees celcius, Kc is 5.84 x 10^-3. (A) Calculate the equilibrium concentrations of both gases when 4.00 grams of N2O4 is placed in a 2.00 L flask at 25 degrees celcius. (B) What will be the new equilibrium concentrations

    asked on April 22, 2010
  95. physics

    A descent vehicle landing on the moon has a vertical velocity toward the surface of the moon of 22.7 m/s. At the same time, it has a horizontal velocity of 58.9 m/s. At what speed does the vehicle move along its descent path? Answer in units of m/s At what

    asked on November 16, 2014
  96. physics

    Consider a rock that is thrown off a bridge of height 27 m at an angle θ = 24° with respect to the horizontal as shown in the figure above. If the initial speed the rock is thrown is 12 m/s, find the following quantities: (a) The time it takes the rock

    asked on September 6, 2010

    Given: N2O4 (g) « 2NO2 (g) @ 25 degrees celcius, Kc is 5.84 x 10^-3. (A) Calculate the equilibrium concentrations of both gases when 4.00 grams of N2O4 is placed in a 2.00 L flask at 25 degrees celcius. (B) What will be the new equilibrium concentrations

    asked on April 21, 2010
  98. physics

    Would you see the same thin film interference pattern in a film of soap surrounded by air and a film of soap on glass? Why or why not?

    asked on January 6, 2010
  99. math

    Given the argument and its Euler diagram, determine the syllogism is valid or invalid. Those who play football. don Football and studying donft mix Those who studt Don is a football player ˆdon does not study

    asked on August 1, 2012
  100. geometry

    find the volume of a shape whose surface ares is 144 pi square inches

    asked on May 10, 2011


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