Popular questions and responses by Frank
  1. 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
  2. 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
  3. 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
  4. 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
  5. 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 My answer:b

    asked on August 15, 2016
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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
  13. 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
  14. 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
  15. physics

    A uniform electric field of 500. V/m is directed in the negative x direction. A +15ìC charge moves from the origin to the point (x,y) = (20.0 cm, 50.0 cm). (a) what was the change in the potential energy of this charge? (b) Through what potential

    asked on September 8, 2007
  16. 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
  17. 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
  18. 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
  19. math

    Let a be -1/6 and let b be 1/2. Let x be the sum of the reciprocals of a and b, let y be the product of the reciprocals of a and b, and let z be twice the reciprocal of a divided by the reciprocal of b. Calculate x+y+z.

    asked on April 19, 2016
  20. Physics

    An object is placed 4 cm in front of a concave lens of focal length 3 cm. Using the lens equation, find where the image will form and state whether it is a real or virtual image.

    asked on December 13, 2014
  21. 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
  22. Maths

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

    asked on November 1, 2015
  23. 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
  24. 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
  25. math

    261 miles in 29 minutes

    asked on September 23, 2012
  26. Chemistry

    10g of ice at 273K is added to 20 g of water at 900 C in an insulated flask. The heat of fusion of ice is 6 Kj/mol and the specific heat capacity of water is 4.2 J/K/g. ignoring the heat capacity of the flask; Determine ∆S of the system.

    asked on March 3, 2020
  27. algebra

    The sum of three numbers is 82. One of the numbers is 9 more than one of the others. Represent the numbers in terms of one variable.

    asked on November 20, 2016
  28. 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
  29. Math

    A faulty odometer (mile indicator) on a car registers 6 miles for every 5 miles travelled. A t the start of a journey it reads 500 miles and at the end of the journey it read 560 miles. What distance has actually been covered?

    asked on November 2, 2013
  30. 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
  31. 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
  32. 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
  33. 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
  34. 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
  35. AP Chem

    Write the overall net-ionic reaction that occurs when iron (ii) hydroxide (Fe(OH)2, Ksp = 7.9 x 10^-15) is dissolved in a 0.500 M sodium cyanide solution forming a complex ion. (Fe(CN)6^4-, Kf = 7.7 x 10^36) Determine the value of the equilibrium constant

    asked on March 26, 2017
  36. 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
  37. Life Orientation

    Explain how drug addiction is a human factor that may cause ill health,accidents,crises or disaster

    asked on April 27, 2013
  38. 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
  39. Math

    On a Christmas package, Audrey needs to use only 40-cent stamps and 16-cent stamps. If she uses twice as many 40-cent stamps as 16-cent stamps, how many of each type of stamp must she use to mail a package costing $5.76 in postage?

    asked on January 18, 2013
  40. 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
  41. Calculus

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

    asked on December 14, 2010
  42. algebra

    find all real zeros and their multiplicity of the polynomial function f(x)=5(x-4)squared(x+2

    asked on November 1, 2010
  43. 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
  44. math

    Employees of a discount appliance store receive an additional 20% off of the lowest price on an item. If an employee purchases a dishwasher during a 15% off sale, how much will he pay if the dishwasher originally cost $450?

    asked on September 11, 2008
  45. space

    what kind of galaxy is the milky way?

    asked on May 20, 2008
  46. 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
  47. 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
  48. 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
  49. 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
  50. Math

    This is a cross product problem: Given uxv= find (u-5v)x(u+4v) I appreciate your help Thank you!

    asked on September 12, 2016
  51. Government

    What are the three methods special interests groups might use to win favorable votes form legislators ?

    asked on April 25, 2016
  52. Ebhs,maths,siswati,english and business studies

    I am frank,i have 4 credits with me namely,maths,siswati,business studies and english,am asking what courses i can take

    asked on September 4, 2015
  53. 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
  54. 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
  55. COMM/215

    I would like to know if i have used properly structured sentences for the following: 49. To succeed in the new economy, workers will have to learn throughout their careers adapt to changing circumstances, and self-motivate when needed. 50. Some students

    asked on January 31, 2015
  56. Physics

    An object is placed 4 cm in front of a convex lens of focal length 3 cm. Using the lens equation, find where the image will form and state whether it is a real or virtual image.

    asked on December 13, 2014
  57. Physics

    A 4 ohm resistor and 10 ohm resistor are connected in series. If this circuit is connected to a 12 V battery, how much current will flow through the circuit?

    asked on December 11, 2014
  58. chemistry

    Calculate the number of moles of O atoms in a 2.5x10(-6)kg sample of C8H10N4O2

    asked on September 20, 2014
  59. English

    Thank you very much. I still have these sentences I'm doubtful about. My doubt is whether I should use the present perfect or the simple past (considering that it is the end of the school year) 1) Exercises for literary text analyses aimed at developing

    asked on May 12, 2014
  60. Math

    kim has 4/10 of a dollar. Carla has 40/100 of a dollar. Who has more money? Explain Colin has 3 quarters. He says he has less than 8/10 of a dollar. is he correct? Explain.

    asked on March 6, 2014
  61. algebra

    square route of 2 plus the square route of 1 plus k = 2.24

    asked on February 5, 2014
  62. Math

    A football arena measures 100ft. wide by 200ft long.The games are played on a similar rectangular field that's 150ft. long. What is the width of the football field? What is the perimeter of the football field?

    asked on November 10, 2013
  63. math

    Dents and Dings Auto Body buys paint with a list price of $29,000. If the supplier extends trade discounts of 30/35/20, what is the trade discount amount?

    asked on August 25, 2013
  64. Biology

    Explain how life on earth is dependent on both polarity of covalent chemical bonds and hydrogen bonding.

    asked on June 7, 2013
  65. 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
  66. math

    two coins are tossed list all the possible outcomes what is the probability that both of the coins land heads-up?

    asked on September 3, 2012
  67. 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
  68. Foreign languages

    Can you please check these sentences, too? Thank you. 1) My friend was very upset because someone had stolen her bag before I saw her. I was waiting for the bus when I heard someone call my name. 2) I got home at half past four and immediately did my

    asked on July 2, 2012
  69. Chemistry

    Consider a tire at 35 Celcius filled with 32 psig of O2 instead of N2. Calculate the pressure in the tire at -18 celcius? Thanks!

    asked on May 28, 2012
  70. Science

    Here are the other sentences on the same theme I urgently need you to check. I hope you can help me. Thank you. 1) The existence of complex molecular structures present in every living system is used by Drexler to show the theoretical possibility of the

    asked on May 25, 2012
  71. Art

    Writeacher, I need your help to rephrase a few sentences. Thank you. 1) Eveline imagines the reactions of people at work when she has gone. Miss Gavan would be glad because she has always had an edge on her (I need to rephrase this). 2) On her turn, she

    asked on May 7, 2012
  72. Art

    Could you please help me find examples of phrasal verbs used in phone calls? Thank you, Writeacher. 1) You can call me up whenever you want to. Shall I ask him to call you back? 2) The line is engaged. Would you like to hang on/hold on? Hang on, I'll put

    asked on May 4, 2012
  73. science

    In the fissioning of uranium, a chain reaction is caused by? ejected neutrons. the enormous energy release. the kinetic energy of the decay products. the conversion of mass to energy.

    asked on March 5, 2012
  74. physics

    A person desires to reach a point that is 1.70 km from her present location and in a direction that is 40.0° north of east. However, she must travel along streets that are oriented either north-south or east-west. What is the minimum distance she could

    asked on January 29, 2012
  75. Astronomy 1010

    Do all wavelength of light make it through the atmosphere? Explain. please detail help and answer

    asked on January 17, 2012
  76. physics

    the system is in static equilibrium. The coefficient of static friction between the block and the table's surface is = 1/3. The mass of the block that is hanging down is n1 Kg. The tangent of the angle shown in the figure is tan theta = n2. What is the

    asked on January 14, 2012
  77. 10th grade World History

    How did the ideas of Enlightenment led to changes in European Music and Literature during the 18th Century.

    asked on December 3, 2011
  78. Algebra

    Using Proportionality How do figure out the average heights and weights for sheep and cows? Also. for Bald Eagles and Canada Geese. Dairy Cow 5 to 6 feet tall at the shoulder/weight 500lbs Bighorn Sheep Shoulder Height: 2.5 to 3.5" 280-300 weight Canada

    asked on November 27, 2011
  79. 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
  80. 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
  81. Chemistry

    Enough SO3 is added to an evacuated container so its initial pressure is 4.00 atm. Calculate the mole fraction of O2 in the equilibrium mixture if the total pressure at equilibrium is 5.00 atm.

    asked on January 28, 2011
  82. biology

    rana pipiens, a species of frog, has a diploid chromosome number of 26. a. how many chromosomes are present during metaphase i? per cell? b. how many chromatids are present during anaphase i ? per cell? c. how many centromeres are present during telophase

    asked on January 15, 2011
  83. physics

    To measure the height of a tree, you throw a rock directly upward, with a speed just fast enough that the rock brushes against the uppermost leaves and then falls back to the ground. If the rock is in the air for 2.1 s, how tall is the tree?

    asked on September 7, 2010
  84. 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
  85. ethics

    Explain the Edwin Meese synddrome, giving examples from the fields of probation and parole

    asked on May 16, 2010
  86. Impossible chemistry problem

    Kinetics Challenge Problem Consider the following reaction: CH3X + Y → CH3Y + X At 25oC, the following two experiments were run, yielding the following data: Experiment 1 : [Y]0 = 3.0 M [CH3X] Time(hr) 7.08 x 10-3M 1.0 4.52 x 10-3M 1.5 2.23 x 10-3M 2.3

    asked on January 8, 2010
  87. Pre-Algebra

    Solve 0 = 3x - 4

    asked on July 15, 2009
  88. Database

    22. Which one of the following schedules has a conflict? A) Sa: r1(X); r1(Y); r2(Z); r1(Z); w1(X); w1(Z) B) Sb: r1(X); r2(X); r1(X); r1(Y); r2(X); w1(Y) C) Sc: r1(Z); r2(X); w1(Z); r1(Y); w1(Z); w2(X) D) both a and b

    asked on April 21, 2009
  89. math

    Samuel has read 5/6 of his assignment. Judy has read 10/12 of her assignment. Who has read more?

    asked on March 9, 2009
  90. math

    how do u get the answer? A nurse has to record her temperatures in Celsius but her thermometer reads Fahrenheit. A patient's temperature is 100.7° F. What is the temperature in °C

    asked on September 11, 2008
  91. math

    If 8x + 5x + 2x + 4x = 114, the 5x + 3 =

    asked on September 11, 2008
  92. science

    substances that are gases at room temperature The list of gases is too long to present here. Among the pure elements, the only ones are H2, He, F2, Cl2, Ne, Ar, Kr, Xe and Rn We can add O2 and N2 to the list of elements that are gases at room T. Yes, my

    asked on March 16, 2007
  93. 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
  94. Economics

    Hypothetical Economy: -Money Supply= $200 billion -Quantity of money demanded for transactions=$150 Billion -Quantity of money demanded as an asset=$10 billion at 12% interest -increaseing by $10 billion for each 2 percentage point fall in the interest

    asked on January 29, 2007
  95. Science

    Astronomers think that most galaxies are centered by a (blackhole?) , which exerts (a gravitational pull?) that binds the galaxy together.

    asked on May 26, 2020
  96. French 2

    I wanted to check all my grammar made sense for my assignment. It had 2 parts. Part 1 was to use aller in futur proche to say what i will do today, tommorrow, the day after tomorrow, and next week. Part 2 was to include what i did yesterday, the day before

    asked on March 13, 2020
  97. Math

    A population of 800 cheetahs decreases by 13% per year. How many cheetahs will there be in 5 years. Round your answer to the nearest whole number. Halp meh plz

    asked on March 4, 2020
  98. Chemistry

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

    asked on December 5, 2019
  99. 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
  100. 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


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