Popular questions and responses by Mel

    Yield to call Six years ago, the Singleton Company issued 20-year bonds with a 14 percent annual coupon rate at their $1,000 par value. The bonds had a 9 percent call premium, with 5 years of call protection. Today, Singleton called the bonds. Compute the

    asked on September 18, 2007
  2. math-calculus

    A spherical party balloon is being inflated with helium pumped in at a rate of 12 cubic feet per minute. How fast is the radius growing at the instant when the radius has reached 1 ft?

    asked on December 17, 2012
  3. mathematics

    How do i calculate if a function is linear or identical

    asked on August 11, 2020
  4. Physics

    A 60 cm long wire is oriented from east to west directly above the equator and carries a current of 5 A (toward the east). What is the magnitude and direction of the magnetic force on this wire due to the earth’s magnetic field (30 µT oriented south and

    asked on July 24, 2019
  5. Quick calc question

    Use the table below to evaluate the derivative with respect to x of g of f of 2 times x at x = 1. x 1 2 3 4 f(x) 6 1 8 2 f ′(x) 6 1 8 2 g(x) 1 4 4 3 g ′(x) 9 5 5 –4

    asked on January 30, 2016
  6. Calculus

    The position function of a particle in rectilinear motion is given by s(t) = 2t^3 – 21t^2 + 60t + 3 for t ≥ 0. Find the position and acceleration of the particle at the instant the when the particle reverses direction. Include units in your answer.

    asked on January 8, 2016
  7. physics

    A 5 kg block is placed near the top of a frictionless ramp, which makes an angle of 30o degrees to the horizontal. A distance d = 1.3 m away from the block is an unstretched spring with k = 3000 N/m. The block slides down the ramp and compresses the

    asked on March 11, 2012
  8. Quick calc question

    Which of the following definite integrals could be used to calculate the total area bounded by the graph of y = 1 – x2 and the x-axis? the integral from 0 to 1 of the quantity 1 minus x squared, dx plus the integral from 1 to 2 of the quantity 1 minus x

    asked on February 12, 2016
  9. Quick calc question

    The Riemann sum, the limit as the maximum of delta x sub i goes to infinity of the summation from i equals 1 to n of f of the quantity x star sub i times delta x sub i , is equivalent to the limit as n goes to infinity of the summation from i equals 1 to n

    asked on February 11, 2016
  10. chem

    One mole of H2O(g) at 1.00 atm and 100.°C occupies a volume of 30.6 L. When one mole of H2O(g) is condensed to one mole of H2O(l) at 1.00 atm and 100.°C, 40.66 kJ of heat is released. If the density of H2O(l) at this temperature and pressure is 0.996

    asked on November 26, 2007
  11. Urgent math help!!

    What is the value of sinθ given that (−3,4) is a point on the terminal side of θ ? −3/5 3/5 4/5

    asked on April 13, 2017
  12. physics

    if two lightning bolts hit exactly the same place, act exactly the same time in one frame of reference, is it possible that observers in other freames will see the bolts hitting at different times or at the different places? explain.

    asked on September 22, 2011
  13. chem

    You are given the following data. P4(s) + 6 Cl2(g) 4 PCl3(g) H = -1225.6 kJ P4(s) + 5 O2(g) P4O10(s) H = -2967.3 kJ PCl3(g) + Cl2(g) PCl5(g) H = -84.2 kJ PCl3(g) + 1/2 O2(g) Cl3PO(g) H = -285.7 kJ Calculate H for the following reaction. P4O10(s) + 6

    asked on December 1, 2007
  14. Quick calc question

    Find the x-coordinates where f '(x) = 0 for f(x) = 2x + sin(4x) in the interval [0, π].

    asked on January 29, 2016
  15. Calculus

    What is the maximum volume in cubic inches of an open box to be made from a 16-inch by 30-inch piece of cardboard by cutting out squares of equal sides from the four corners and bending up the sides? Your work must include a statement of the function and

    asked on January 8, 2016
  16. Physics

    Find an expression in terms of M, mu, and theta for the speed of waves on the string.Express your answer in terms of the variables M, mu, theta, and appropriate constants. The picture shown is just of a block with mass m on an inclined frictionless surface

    asked on November 27, 2012
  17. chemistry

    water vapor and nitrogen dioxide gas NO2 are cimbined to manufacture ammonia. a by product of this reaction is oxygen gas. write a balanced equation for this reaction. i do not understand this at all please help me figure it out

    asked on April 16, 2009
  18. physics

    Hey can someone help with this. A movie stuntwoman drops from a helicopter that is 30.0 m above the ground and moving with a constant velocity whose components are 10.0 m/s upward and 15.0 m/s horizontal and toward the south. You can ignore air resistance.

    asked on September 26, 2008
  19. chem

    Combustion reactions involve reacting a substance with oxygen. When compounds containing carbon and hydrogen are combusted, carbon dioxide and water are the products. Using the enthalpies of combustion for C4H4 (-2341 kJ/mol), C4H8 (-2755 kJ/mol), and H2

    asked on November 27, 2007
  20. science

    how would you make 500.0mL of a 0.200M NaOH solution from a 15.0 M stock NaOH solution?? I assume that you want the volumes rather than the mechanics of carrying it out? a) How many moles do you need in the 500 ml to have 0.200 M? b) What volume of 15.0 M

    asked on April 5, 2007
  21. Quick calc question

    Write the Riemann sum to find the area under the graph of the function f(x) = x2 from x = 1 to x = 5. 1. the summation from i equals 1 to n of the product of the quantity squared of 1 plus 5 times i over n and 4 over n 2. the limit as n goes to infinity of

    asked on February 12, 2016
  22. Mechanical Behavior on Materials / math

    The television coverage of the World Series showed several remarkable slow-motion views of the deflection of the bat as it hit the ball. Major league wood baseball bats are made of ash. A typical major league bat has a length of 0.95m and a tapering

    asked on November 9, 2015
  23. chemistry

    In a dry cell, MnO2 occurs in a semisolid electrolyte paste and is reduced at the cathode. The MnO2 used in dry cells can itself be produced by an electrochemical process of which one half-reaction is shown below. Mn2+(aq) + 2 H2O(l) MnO2(s) + 4 H+(aq) + 2

    asked on May 5, 2015
  24. algebra 2

    If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from the first equation is substituted into the second equation. x + y = 2 3x + 2y = 9

    asked on August 16, 2012
  25. Chemistry

    Consider the following unbalanced equation. H1+(aq) + Fe(s) H2(g) + Fe2+(aq) What is the balanced oxidation half-reaction? What is the balanced reduction half-reaction? What is the balanced overall cell reaction?

    asked on June 8, 2012
  26. Algebra

    x^2 + kx - 19 Find all values of k so that each polynomial can be factored using integers.

    asked on May 5, 2011
  27. calc

    Given the position function, s of t equals negative t cubed divided by 3 plus 13 times t squared divided by 2 minus 30 times t, between t = 0 and t = 9, where s is given in feet and t is measured in seconds, find the interval in seconds where the particle

    asked on January 8, 2016
  28. Algebra

    How to write |y|-2=0 in standard form?

    asked on February 12, 2017
  29. Social studies

    Which of the following phrases might a Republican Congress have used to describe President Johnson's Reconstruction plans

    asked on January 24, 2017
  30. programming and visual basics

    Using pseudocode or a flowchart write a program that does the following: Design the logic for the game Hangman, in which the user guesses letters in a hidden word. Store the letters of a word in an array of characters. Display a dash for each missing

    asked on March 30, 2016
  31. Language Arts

    what is the participle or participial phrase in the following sentence: The art students, brought by bus, toured the museum.

    asked on March 29, 2016
  32. Quick calc question

    Use geometry to evaluate the integral from 0 to 10 of the function f of x, dx for f of x equals 5 for x less than or equal to 5 and equals the quantity 10 minus x for x greater than 5 . 12.5 25 37.5 Cannot be found

    asked on February 12, 2016
  33. psychology

    Leigh, B. C. (1993). Alcohol consumption and sexual activity as reported with a diary technique. Journal of Abnormal Psychology, 102, 490-493. doi:10.1037/0021-843X.102.3.490 This is the article to utilize when answering the questions 1. What are the

    asked on July 6, 2014
  34. Physics

    Approximately 4x10^9 kg of matter is converted into energy in the sun per second. Express the power output of the sun in watts.

    asked on September 27, 2012
  35. Physical Science

    I balanced Li(s) + Cl2(g)= LiCl(s) to 2Li(s) + Cl2(g)= 2LiCl(s) Now the question is, if you have 39.8g Li, how many moles of LiCl would you have? I am stuck on this part. Any help would be appreciated.

    asked on March 18, 2012
  36. physics

    An object of mass M = 4 kg slides from rest a distance d = 2 m down a frictionless inclined plane where it encounters a spring. It compresses the spring a distance D = 1.2 m before stopping. The inclined plane makes an angle q = 20° with the horizontal.

    asked on March 11, 2012
  37. Business Ethics

    You are a high level manager who has been asked to present a PowerPoint presentation to your employees on the concepts of stakeholders and corporate social responsibility. Your PowerPoint presentation must include the following: • What is a stakeholder?

    asked on April 29, 2011
  38. chem

    calculate the max wavelength of light capable of removing an electron for a hydrogen atom from the energy state characterized by the following : n=2 in nm n=4 in nm

    asked on December 6, 2007
  39. chem

    The specific heat capacity of silver is 0.24 J/°C·g. (a) Calculate the energy required to raise the temperature of 140.0 g Ag from 273 K to 295 K. J (b) Calculate the energy required to raise the temperature of 1.0 mol Ag by 1.0°C (called the molar heat

    asked on November 26, 2007
  40. Quick calc question

    If f(x) and g(x) are continuous on [a, b], which one of the following statements is false? the integral from a to b of the sum of f of x and g of x, dx equals the integral from a to b of f of x, dx plus the integral from a to b of g of x dx the integral

    asked on February 12, 2016
  41. Quick calc question

    Determine the interval on which f(x) = ln(x) is integrable. (0, ∞) [0, ∞) (−∞, 0) U (0, ∞) All reals

    asked on February 12, 2016
  42. Quick calc question

    Given that the antiderivative of f of x equals 1 divided by x is F(x) = Ln|x| + C, evaluate the integral from 1 to 2 of the 1 divided by x, dx. ln3 1/2 -1/2 ln2

    asked on February 12, 2016
  43. Quick calc question

    For f of x equals the quotient of the quantity 1 minus x and the quantity 1 plus x and g of x equals the quotient of the quantity x and the quantity 1 plus x, find the simplified form for f [g(x)] and state the domain.

    asked on January 30, 2016
  44. chemistry

    It is found that an average volume of 24.25 ml of approximately 0.1 M NaOH is required to reach an endpoint in a titration with 25.00ml of 0.09917 M HCl solution. What is the NaOH concentration? Make sure to give answer to four significant figures.

    asked on March 27, 2015
  45. Statistics

    Daily water intake (including water used in drinks such as coffee, tea and juice) for Canadian adults follows a normal distribution with mean 1.86 litres and standard deviation 0.29 litres. (a) Can you calculate the probability that the mean daily water

    asked on November 4, 2014
  46. Physics

    You throw a ball straight into the air from a height of 4 feet and with a speed of 8.22 m/s. The moment the ball leaves your hand you start running away at a speed of 3.36 m/s. How far are you from the ball, the moment it hits the ground? (what are the

    asked on February 3, 2014
  47. Math

    Simplify. Remember to use absolute-value notation when necessary. If a root cannot be simplified, state this. 4ã(6a)^4

    asked on August 4, 2013
  48. chem biochem bio

    You have the following stock solutions and solid chemicals in your lab: 1.5M NaCL 0.2M Tris buffer, pH 8.0 10 mg/ml Bovine serum albumin (BSA) MgCl2 (solid, anhydrous) MW = 95.211 g/mole (95% pure) How would you make 250 ml of the following solution???

    asked on March 10, 2013
  49. sociology 101

    which three of the most important sociological thinkers and use those ideas to explain the Senge, Hawken et al, and Kemmis readings

    asked on December 3, 2012
  50. Physics

    A person walks the path shown below. The total trip consists of four straight-line paths. Path 1 is 30.0 m due east. Path 2 is 200.0 m due south. Path 3 is 140.0 m 30.0° south of west. Path 4 is 170.0 m 60.0° north of west. At the end of the walk, what

    asked on November 1, 2012
  51. Physics HELP!

    A centrifuge in a medical laboratory rotates at an angular speed of 3500 rev/ min. When switched off, it rotates through 41.0 revolutions before coming to rest. (a) Find the angular speed in rad/s. (b) Find the displacement in radians. (c) Find the

    asked on October 26, 2012
  52. medical

    Mr johnson is admitted to the hospital with chest and epigastic pain. he is evaluated by er department doctor with a diagnosis of rule out myocardial infraction. mr johnson is then transferred to a larger facility for further workup.... What is the

    asked on October 14, 2012
  53. Chemistry

    HELP! :) Consider the following reaction: 3A to 2B The average rate of appearance of B is given by deltaB divided by delta t. Comparing the rate of appearance of B and the rate of disappearance of A, we get Delta B divided by Delta t= ___* (-delta A

    asked on May 24, 2012
  54. Physical Science

    Please help me with this. I just don't get it. The average rate of chemical weathering of carbonate rock in an urban area is 2.1 x 10^-3 mm/yr. The depth of lettering of the tombstones shown in the table below was measured in 2010: Date on Tombstone Age

    asked on April 21, 2012
  55. Physical Science

    Can't figure this out, HELP!: What is the velocity (v) of a stream with a discharge (Q) of 8.53 x 10^3 m 3/s and a cross-sectional area (A) of 5.27 x 10^3 m2?

    asked on April 21, 2012
  56. physics

    A physics student pulls a block of mass m = 23 kg up an incline at a slow constant velocity for a distance of d = 4 m. The incline makes an angle q = 25° with the horizontal. The coefficient of kinetic friction between the block and the inclined plane is

    asked on March 11, 2012
  57. Math

    What multiplication fact can be found by using the arrays for 2 x 9 and 5 x 9?

    asked on February 9, 2012
  58. MATH


    asked on November 22, 2011
  59. health

    Write a 300- to 350-word paper on the causes, symptoms, management, and prevention of cardiovascular disease.

    asked on October 27, 2011
  60. physics

    Stemming a chimney. A rock climber of mass 71 kg wants to make her way up the crack between two rocks as shown in the figure below. The coefficient of friction between her shoes and the rock surface is ìS = 0.90. What is smallest normal force that she can

    asked on October 6, 2011
  61. World History Honors

    is this primary source ? The Black Death A Description of the Plague This first account is from Messina, and it described the arrival and initial progress of the disease. At the beginning of October, in the year of the incarnation of the Son of God 1347,

    asked on September 26, 2011
  62. World History

    What is it about Greco-Roman culture that creates positive feelings in people???

    asked on September 11, 2011
  63. English

    What is the meaning of the poem snow & ice by Quincy Troupe?

    asked on August 16, 2011
  64. World History Honors

    Hi! Can anyone help me with this assignment...? Using the primary source documents and information from your chapter, form a thesis that describes why Herodotus referred to Egypt the way he did (Why he referred to Egypt as the “gift of the Nile.”)

    asked on August 12, 2011
  65. World History

    Hi! I've been having trouble doing my world history assignment.. if anyone can help; here are the instructions.. This assignment asks you to write about an event from two different points of view. Historians often read conflicting accounts of events and

    asked on August 7, 2011
  66. Trig

    How do I prove the following Identity? sec x(sec x-cos x)=tan^2x If there is a certain website or suggestion to help with these type of equations I would greatly appreciate it. I've been studying these for a while but still get pretty confused.

    asked on May 31, 2011
  67. Chemistry

    How many grams of bromine can be obtained by the decomposition of 92.0 of MgBr2?

    asked on April 27, 2011
  68. history

    what were the reasons our forefathers divided the government into three branches?

    asked on November 5, 2010
  69. physics

    A block weighing 8.3 N requires a force of 2.6 N to push it along at constant velocity. What is the coefficient of friction surface? A weight W is now placed on the block and 8.2 is needed to push them both at constant velocity. What is the weight W of the

    asked on March 19, 2010
  70. physics

    A bag of sugar weighs 6.00 lb on Earth. What would it weigh in newtons on the Moon, where the free-fall acceleration is one-sixth that on Earth?

    asked on February 17, 2010
  71. MATH

    Tara says that 1/2 of a salad is always the same amount. Lynn says that it could be different amounts, depending on how large the salad is. Who is correct? Why?

    asked on January 25, 2010
  72. Algebra 1

    "The sum of two measures of two angles is 180 degrees. What is the measure of each angle if one angle is 30 degrees more than twice the other?" would the equation be: x+(2x+30)=180 ???? if it isn't, please explain! thanks!

    asked on February 16, 2009
  73. math

    Charlie wants to buy a $900 TV in 9 months. How much should he invest now at 17% simple interest to have the money in 9 months?

    asked on January 28, 2009
  74. chemistry - atoms

    Understanding Chemical Bonding This is a short activity to introduce you to the concept of chemical bonding. In this activity, you will take the number of your birth month as your atomic number. Using this information, you will be able to determine the

    asked on September 11, 2008

    a man weighiing 7-kg lies in a hammock whose ropes make angles of 20 and 25 degrees with the horizontal. What is the tension in each rope?

    asked on February 17, 2008
  76. chem

    A balloon filled with 22.3 mol helium has a volume of 500. L at 0.0°C and 1.00 atm pressure. The temperature of the balloon is increased to 38.0°C as it expands to a volume of 570. L, the pressure remaining constant. Calculate q, w, and E for the helium

    asked on November 26, 2007
  77. chem

    2 HNO3(aq) + Na2CO3(s) 2 NaNO3(aq) + H2O(l) + CO2(g) (a) Calculate H° for this reaction. kJ

    asked on November 26, 2007
  78. chem

    A 75.0 L stainless steel container was charged with 3.00 atm of hydrogen gas and 4.00 atm of oxygen gas. A spark ignited the mixture, producing water. What is the pressure in the tank at 25°C? in atm What is the pressure in the tank at 125°C? in atm

    asked on November 17, 2007
  79. dr. bob

    Use the data in Table 5.4 to calculate the partial pressure of He in dry air assuming that the total pressure is 1.0 atm. Assuming a temperature of 21°C, calculate the number of He atoms per cubic centimeter. atoms/cm3 .00000524 - atmospheric composition

    asked on November 17, 2007
  80. chem

    In 1897 the Swedish explorer Andree tried to reach the North Pole in a balloon. The balloon was filled with hydrogen gas. The hydrogen gas was prepared from iron splints and diluted sulfuric acid. The reaction is given below. Fe(s) + H2SO4(aq) FeSO4(aq) +

    asked on November 16, 2007
  81. chem

    75L stainless steel container was charged with 3 atm of hydrogen gas and 4 atm of oxygen gas. a spark ignited the misture, producing water. what is the pressure of the tank at 25C? at 125C?

    asked on November 16, 2007
  82. chem

    C6H12O6(aq)->2 C2H5OH(aq) + 2CO2(g) Fermentation of 744mL grape juice(density=1.0 g/cm^3) is allowed to take place in a bottle witha V of 825mL until 12% by volume is ethanol (C2H5OH). Assuming CO2 is insoluble in H2O what would the pressure be of the CO2

    asked on November 16, 2007
  83. chem

    given the reaction - Fe(s)+H2SO4(aq)->FeSO4(aq) + H2(g) the volume of the balloon was 4400m^3 and the loss of hydrogen gas during filling was est. at 20%. what mass of iron splints and 87% (by mass) H2SO4 were needed to ensure complete filling of the

    asked on November 15, 2007
  84. chemistry

    hot-air balloon is filled with air at a volume of 3.64 x 10^3 m^3 at 745 torr at 39C. the air in balloon is heated to 60C, causing balloon to expand to a volume of 4.50x 10^3 m^3. what is the ratio of the number of moles of the air in heated balloon to

    asked on November 15, 2007
  85. chem

    The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental chemists. In general, 1 ppm means 1 part of solute for every 106 (one million) parts of solution. Mathematically by mass: ppm = µg solute / g solution = mg

    asked on November 3, 2007
  86. chem

    I have the following problems- write net ionic equations for reactions if no reaction write NR.... silver nitrate and ammonium carbonate sodium phosphate and potassium nitrate silver nitrate and barium chloride copper (II) chloride and sodium hydroxide

    asked on November 2, 2007
  87. chem

    how much of each of the following substances would you add to water to prepare 1.20L of a .85M solution? (sodium carbonate from the pure solid) ? I am stuck on how to work this one out, too. thanks

    asked on November 2, 2007

    Bond valuation Nungesser Corporation’s outstanding bonds have a $1,000 par value, a 9 percent semiannual coupon, 8 years to maturity, and an 8.5 percent YTM. What is the bond’s price?

    asked on September 18, 2007
  89. Finance

    Interest rate premiums A 5-year Treasury bond has a 5.2 percent yield. A 10-year Treasury bond yields 6.4 percent, and a 10-year corporate bond yields 8.4 percent. The market expects that inflation will average 2.5 percent over the next 10 years (IP10 _

    asked on September 15, 2007
  90. social studies

    i need to know what in the body there is 11 of or what 11 may relate to a certain body part? Need human physiology help here. Thank you for using the Jiskha Homework Help Forum. The first book on this site mentions 11 body systems:

    asked on July 19, 2007
  91. ~Chem

    Check my work please The solubility product of nickel (II) hydroxide at 25°C is 1.6 x 10-16. Calculate the molar solubility of nickel (II) hydroxide in 0.100 M sodium hydroxide. Ni(OH)2 Ni2+ + 2OH– I = Ni2+ is 0 & 2OH– is 0.1 Change = Ni2+ is X and

    asked on May 14, 2007
  92. math/geometry

    (use the law of sines) Solve triangle ABC if a=19, b=16, m

    asked on March 13, 2020
  93. Statistics

    Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 10. Use the 68-95-99.7 rule to find out the percentage of scores less than 100

    asked on January 23, 2020
  94. stats

    I need help. I am so so lost and need the answers and step by step if possible. I have tried everything but I think I'm just.. having a huge brainfart. I need the answers and the step by step please A quiz consists of 8 multiple choice questions, each with

    asked on August 5, 2019
  95. math stats

    When 100 students at UCF were given a calculus problem that required the use of integration by parts, 95 were able to solve it. When 100 FAU students were given the same problem, 68 were able to solve it. What is the test statistic associated with the

    asked on August 5, 2019
  96. algebra

    If f(x)=x+7 and g(x)=1/x-13, what is the domain of (f x g)(x)? Please explain.

    asked on April 10, 2019
  97. Math

    Can someone get the math for the worksheet? I'm havibg troubles getting the answers and how to get them. Thxs!

    asked on March 7, 2019
  98. Calculus

    How do I take the indefinite integral of (5-x)/(2x^2+x-1)? I've tried splitting it into two integrals and even completing the square on the bottom but neither of those led me anywhere. Help?

    asked on February 7, 2018
  99. Science

    A coach wants to find out the speed of the runners on the track team.Tell what simple equipment the coach need in order to do this and explain how it should be done.

    asked on January 21, 2018
  100. Pre-calculus

    Can someone help me with this equation: y = (2*10^(-44))*(e^(0.055x))?

    asked on May 6, 2017


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