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. 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
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. Physics

    A storage battery has an emf of 6.3 volts and an internal resistance of 0.01 ohm. it is to be charged for 120 amperes.hours from a 30 volt emf source having a resistance of 0.08 ohm at the rate of 20 amperes. a. compute for the resistance needed b. what is

    asked on September 16, 2015
  13. MATH

    Determine the x-intercepts for y = x^3 + 4x^2 - 4x - 16 and for y = 2x^4 - 5x^2

    asked on September 18, 2009
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  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. 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. 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
  29. 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
  30. 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
  31. 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
  32. Maths

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

    asked on November 1, 2015
  33. 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
  34. 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
  35. math

    261 miles in 29 minutes

    asked on September 23, 2012
  36. 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
  37. 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
  38. 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
  39. 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
  40. 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
  41. 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
  42. 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
  43. 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
  44. Math

    A city park employee collected 600 cents in nickels, dimes, and quarters at the bottom of the wishing well. There were 10 nickels, and a combined total of 25 dimes and quarters. How many dimes and quarters were at the bottom of the well?

    asked on June 3, 2017
  45. 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
  46. 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
  47. 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
  48. physics

    Traveling at a speed of 19.5 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the road is 0.740. What is the speed of the automobile after 1.21 s have elapsed?

    asked on October 18, 2014
  49. Math College (Algebra)

    How to solve this system? x + [(3x-y)/(x^2+y^2)] = 3 y - [(x+3y)/(x^2+y^2)] = 0

    asked on October 11, 2014
  50. chemistry

    A 2.556g sample of baking soda (NaHCO3)decomposes to produce 0.876g of solid sodium carbonate. Caculate the theoretical yield and the percent yield of the sodium carbonate. The equation is: 2NaHCO3(s) -> Na2CO3(s) + H2O + CO2(g)

    asked on September 22, 2014
  51. 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
  52. eNGLISH

    Can you please tell me if the sentences are grammatically correct? e.g. "facing death" or the ability to face death Hamlet doubtful about the existence of an afterlife.

    asked on February 14, 2014
  53. English

    Can someone tell me what's the British for the words "common trash barrels", "sorted trash", "regular kitchen" trash or food/garden waste? Thank you I'm quite environmentally friendly. I have three containers at home into which to sort my trash. One is for

    asked on January 14, 2014
  54. 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
  55. 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
  56. 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
  57. 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
  58. 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
  59. 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
  60. 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
  61. 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
  62. 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
  63. 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
  64. 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
  65. 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
  66. 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
  67. math

    Hi guys, I am really stuck with this problem, maybe somebody could help me out. A rancher has 2100 feet of fencing with which to construct adjacent, equally sized rectangular pens as shown in the figure above. What dimensions should these pens have to

    asked on November 14, 2016
  68. 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
  69. 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
  70. History

    what was the Rhode Island connection with the cotton gin?

    asked on February 29, 2016
  71. 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
  72. 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
  73. 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
  74. 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
  75. Physics

    What is the frequency of a sound wave in air at 20°C that has a wavelength of 0.4 m?

    asked on December 13, 2014
  76. 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
  77. chemistry

    Calculate the number of C atoms in a .25mg sample of C8H10N4O2

    asked on September 20, 2014
  78. 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
  79. 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
  80. physics

    A fan blade is rotating with a constant angular acceleration of +8.4 rad/s2. At what point on the blade, as measured from the axis of rotation, does the magnitude of the tangential acceleration equal that of the acceleration due to gravity?

    asked on July 16, 2013
  81. social studies

    2013 social studies fair project: A turn in history Walt Disney Pre-Draft Please

    asked on January 13, 2013
  82. Calc 1

    integrate from 0 to pi/2 (3sinxcosx)/(1+3sin^2x)^1/2

    asked on November 30, 2012
  83. 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
  84. Chemistry

    when an electron in a hydrogen atom transitions from the n = 5 level to the n = 2 level, what wavelength photon (in nm) is emitted? Thanks!

    asked on May 7, 2012
  85. Math

    To determine the question use Frogs F and G are 5cm to cube and 40cm to cube. a. Ratio What are ratio volumes and surface areas for a frog? (The formula for figuring out this data A correlation V square=2/3 Ratio Volumes: Surface areas: b. Toxin Let us say

    asked on November 29, 2011
  86. 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
  87. Math

    The height of Big Foot is 10 times that of an ordinary ape. How many times is the weight of an ordinary ape? How many times is the surface area that of an ordinary ape? How many times is the pressure on the feet that of an ordinary ape? Ordinary ape 6 foot

    asked on November 27, 2011
  88. NU

    a ball is thrown straight upward with some unknow velocity. The ball reaches a maximum height above the launch point of 32m. how fast is the ball movin when it is 8 m above the launch point

    asked on June 17, 2011
  89. 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
  90. Math SAT Sheet

    1.) Find the domain and range for: f(x)= 4x-20/ the square root of 36-x^2 2.) Solve the equation: log6 (x-11) + log6 (x-6) = 2 3.) Solve the inequality: x^2 - 2x - 3 is greater than 0

    asked on May 2, 2010
  91. 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
  92. 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

    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
  94. 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
  95. 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
  96. 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
  97. Pre-Algebra

    Solve 0 = 3x - 4

    asked on July 15, 2009

    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
  99. algebra

    You may have to convert from feet to miles several times in this assignment. You can use 1 mile = 5,280 feet for your conversions. 1.Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on

    asked on March 1, 2008
  100. math

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

    asked on September 8, 2007


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