Popular questions and responses by jim
  1. English

    Type of sentence: To keep your files in order, the filing rules must be learned. (A) Properly constructed (B) Lacks parallel parts (C) Dangler (D) Misplaced part. I believe it to be (A)?

    asked on September 28, 2016
  2. English

    Combine these two simple sentences into a complex sentence. Many industrialized nations use the metric system. The United States refuses to adopt it. A. Although many industrialized nations use the metric system, the United States refuses to adopt it. B.

    asked on November 22, 2015
  3. English

    Choose the option that corrects the error in the "quote". If no error exists, choose "No change is necessary." Bill, the foreman of the construction company, is concerned about the safety in the large building. "They have had" three accidents in the past

    asked on November 22, 2015
  4. Matht

    Translate this sentence into an equation. The product of 7 and diego'so savings is 112. Use d to represent diego'so savings

    asked on May 23, 2017
  5. Physics

    Tree point charges(A---B---C)have equal magnitudes and are located on the same line.? The separation d btw A and B is the same as btw B and C. A is +, B/C are -. Consider the net electrostatic force that each charge experience due to the other two charges.

    asked on August 24, 2011
  6. Chemistry

    the activation energy for the decomposition of HI(g) to H2(g) and I2(g) is 186kj/mol. the rate constant at 555k is 3.42 x 10^-7 L/mol*s. What is the rate constant at 645K? Please show all steps USING THE ARRHENIUS EQUATION. Here is my work so far: K = A

    asked on October 26, 2010
  7. Math: Please help

    1. What is the simplified form of squared root 140? A.) 4 to the square root of 35 B.) 10 to the square root of 14 C.) 2 to the square root of 70 D.) 2 to the square root of 35 Please show me how to do this Thank You

    asked on March 12, 2013
  8. Chem

    In photography, unexposed silver bromide is removed from film by soaking the film in a solution of sodium thiosulfate, Na2S2O3. Silver ion forms a soluble complex with thiosulfate ion, S2O3^2-, that has the formula Ag(S2O3)2^3-, and formation of the

    asked on March 10, 2015
  9. chemistry

    which probably has the lowest boiling point at 1.0 atm pressure. A) C6H14 B) C3H8 C) C4H10 D) C5H12 E) C2H6

    asked on June 21, 2010
  10. English

    Identify the INCORRECT sentence. A. Amanda worked diligently on her algebra homework. B. Trudy bought a American-made car. C. My sister angrily slammed the door. D. You should concentrate closely on whatever you write. D

    asked on October 15, 2015
  11. Math

    13. A catapult launches a boulder with an upward velocity of 148 ft/s. The height of the boulder (h) in feet after t seconds is given by the function h = –16t² + 148t + 30. How long does it take the boulder to reach its maximum height? What is the

    asked on March 11, 2013
  12. English

    Which is __________ to write, a letter or an essay? A. most easiest B. more easy C. easiest D. easier

    asked on October 15, 2015
  13. Chemistry

    Calculate the enthalpy change (ΔH) for: HCl(aq) + NH3(aq) → NH4Cl(aq) The reaction of 50.0 mL of 1.00 M HCl with 50.0 mL of 1.00 M NH3 causes a temperature rise of 6.4 ˚C in the resulting 100.0 mL of solution. The NH4Cl solution has a density of 1.005

    asked on September 15, 2015
  14. math

    a local television station sends out questionnaires to determine if viewers would rather see a documentary, an interview show or reruns of a game show there were 350 responses with following results. 105 were interested in an interview show and a

    asked on April 27, 2011
  15. physics

    Find the change in the gravitational force between two planets if the masses of both planets are doubled but the distance between them stays the same. Express your answer as an integer.

    asked on March 8, 2012
  16. math

    Case: A borrower received a 30-year ARM mortgage loan for $200,000. Rate caps are 3/2/6. The start rate is 3.50% and the loan adjusts every 12 months for the life of the mortgage. The index used for this mortgage is LIBOR (for this exercise, 3.00% at the

    asked on May 7, 2020
  17. physics

    A stone with a mass of 1.0 kg is tied to the end of a light string which keeps it moving in a circle with a constant speed of 4.0 m/s on a perfectly smooth horizontal tabletop. The radius of the path is 0.60 m. How much work does the tension in the string

    asked on November 12, 2017
  18. Math

    A random sample of 42 college graduates revealed that they worked an average of 5.5 years on the job before being promoted. The sample standard deviation was 1.1 years. Using the .99 degree of confidence, what is the confidence interval for the population

    asked on February 2, 2013
  19. Precalculus

    From a rectangular piece of cardboard having dimensions a × b, where a = 40 inches and b = 70 inches, an open box is to be made by cutting out an identical square of area x2 from each corner and turning up the sides (see the figure). Express the volume V

    asked on March 7, 2012
  20. Physics

    As the time required to run up the stairs increases, the power developed by that person Increases, decreases, or remains the same. Is the answer decreases?

    asked on October 22, 2009
  21. Calculus

    The function f is continuous on the interval [3, 13] with selected values of x and f(x) given in the table below. Use the data in the table to approximate f '(3.5) x 3 4 7 10 13 f(x) 2 8 10 12 22

    asked on April 6, 2018
  22. Probability and Statistics

    If a seed is planted, it has a 95% chance of growing into a healthy plant. If 6 seeds are planted, what is the probability that exactly 4 don't grow?

    asked on December 6, 2017
  23. Physics

    Pulling the string on a bow back with a force of 28.7lbs, an archer prepares to shoot an arrow. If the archer pulls in the center of the string, and the angle between the two halves is 138 degrees, what is the tension in the string?

    asked on March 8, 2010
  24. calculus

    A rectangle has its base on the x-axis and its upper two vertices on the parabola y=12−x2 . What is the largest area that the rectangle can have

    asked on May 19, 2009
  25. Chemistry

    The human body “burns” glucose (C6H12O6) for energy. a. Write a balanced chemical reaction for the complete combustion of glucose to CO2(g) and H2O(l) such that the stoichiometric coefficient for glucose is 1. b. When 1.00 g of glucose are completely

    asked on January 30, 2017
  26. Chemistry

    Which of the following molecules has a double bond? 1. NO3- 4. H2 2. C2H4 5. C12 3. SO2 6. None of the previous answers I got that three of these molecules have a double bond (NO3-, SO2, and C2H4), but the answer is one. I am thinking that maybe the

    asked on September 9, 2015
  27. Physics

    a pendulum-driven clock gains 5.00 s/day, what fractional change in pendulum length must be made for it to keep perfect time?

    asked on November 8, 2017
  28. ENGLISH 11

    Richard Bone by Edgar Lee Masters: When I first came to Spoon River I did not know whether what they told me Was true or false. They would bring me an epitaph And stand around the shop while I worked And say "He was so kind," "He was wonderful," "She was

    asked on March 5, 2012
  29. physics

    As shown below, a bullet of mass m and speed v passes completely through a pendulum bob of mass M. The bullet emerges with a speed of v/2. The pendulum bob is suspended by a stiff rod of length and negligible mass. What is the minimum value of v such that

    asked on March 22, 2009
  30. world history

    Which power did farmers, merchants, and artisans eventually gain in the roman republic? A. The ability to elect officials who could veto laws harmful to plebeians B. The ability to select patrician consuls C. The right to help Etruscan authorities in

    asked on October 26, 2017
  31. sequence

    Select the first five terms in the arithmetic sequence an = 4n, starting with n =

    asked on April 23, 2016
  32. physics

    the mass of a brick is 2.5 kg. its dimensions are 10cmx5cmx2cm. find the pressure of the brick exerts on the ground if it is resting on a. 10cmx5cm base and b. 5cmx2cm base

    asked on August 20, 2013
  33. pre calc

    The minute hand of a clock is 7 inches long. How far does the tip move in 16 minutes? a.56/15pi b.8/105pi c.4/105pi d.28/15pi

    asked on January 2, 2012
  34. Physics

    Two straight and parallel wires of length 1.0 m carry a current - the first carries a currecnt of 9.0 A while the other wire carries a current of 4.0 A. What distance must separate the two straight and parallel copper wires if the force between them is to

    asked on December 8, 2010
  35. chemistry

    A substance has a heat of fusion of 61.5 kj/mol and a heat of deposition of 167.4 kj/mol. What is 175 heat of sublimation in kj/mol? A) 61.5-167.4 B) 61.5+ 167.4 C) -61.5 D) 167.4 E) 167.4-61.5

    asked on June 21, 2010
  36. chemistry

    The normal boiling point of acetone is 56.2 (degrees)C and the molar heat of vaporization is 32.0 kj/mol. At what temperature will acetone boil under a pressure of 50.0 mmHg?

    asked on June 21, 2010
  37. Chemistry

    Which compound has a value of Ka that is close to 10^-5? A)NaCl B)HN03 C)CH3CH2C02H D)KOH E)NH3

    asked on April 28, 2010
  38. Probability and Statistics

    According to Masterfoods, the company that manufactures M&M’s, 12% of peanut M&M’s are brown, 15% are yellow, 12% are red, 23% are blue, 23% are orange and 15% are green. You randomly select peanut M&M’s from an extra-large bag looking for an orange

    asked on December 6, 2017
  39. Maths

    A spinner numbered 1 to 50 is spun twice. Find the probability that the total from the two spins is: a. 51 b.55

    asked on November 4, 2016
  40. math

    a parking lot charges $1.50 for the first hour of parking and 55 cents for each additional half hour how much would it cost to park a car from 12:45pm to 6:15 pm

    asked on May 13, 2014
  41. Algebra

    A cab charges $1.75 for the first mile and $0.25 for each additional mile. Write and solve an inequality to determine how many miles Eddie can travel if he has $15 to spend

    asked on September 25, 2013
  42. Chemistry

    What would be the effect of each of the following on the calculated molecular weight of the solute? a) some cyclohexane evaporated while the freezing point of pure cyclohexane was being measured. ( i think it would be higher) b)Some cyclohexane evaporated

    asked on January 29, 2013
  43. English

    Identify the correct sentence. A. Where is the necklace from your sister and the earrings from your cousin? B. Where are the necklace from your sister and the earrings from your cousin? C. Where are the necklace from your sister in addition to the earrings

    asked on October 15, 2015

    Describe the market structure of the beverage industry.

    asked on June 5, 2015

    Program evaluation differs from policy analysis with respect to _____. a. the time dimension within the policy process b. the cost c. the time d. the role of the stakeholder

    asked on December 9, 2013
  46. Statistics 2

    To calculate the mean for grouped data, which of the following steps must be completed? a. multiply the number of subjects within each category by the value of that category b. divide the results of the multiplication c. multiply by the number of subjects

    asked on December 1, 2013
  47. Algebra

    Suzi drove home at 69 mph, but her brother Jim, who left at the same time, could drive at only 41 mph. When Suzi arrived, Jim still had 112 miles to go. How far did Suzi drive?

    asked on February 6, 2011
  48. Physics

    A box weighing 215 N is placed on an inclined plane that makes a 55 degree angle with the horizontal. Compute the component of the gravitional force acting down the inclined plane.

    asked on November 29, 2010
  49. Maths

    Hi, I need to calculate the size of one of the interior angles of a regular heptagon (i.e. a regular 7-sided polygon). Any help appreciated

    asked on July 12, 2010
  50. College Chemistry (Hard)

    The easiest fusion reaction to initiate is 1-1H + 1-1H------> 4-2He + 1-0 n The 1-1 indicates a small one above the other on the left side of the symbol of the element.So for 1-0n is a one above a zero on the left side of n (neutron). The number on the top

    asked on April 5, 2010
  51. maths

    what is 907.457 rounded to the nearest tens place? How to get the answer.

    asked on February 20, 2010
  52. Maths

    A box contains different coloured counters, with P(purple)= 10%, P(yellow)= 2/3 and P(orange) 1/7. a. Is it possible to obtain a colour other than purple, yellow or orange? b. What is the minimum number of counters in the box c. If the box cannot fit more

    asked on November 4, 2016
  53. science

    on the windward side of the mountain, should the relative humidity of the parcel change as it rises from 3000 feet to 6000 feet? Why?

    asked on November 6, 2013
  54. physics

    A circular coil with a radius of 25 cm has 20 turns. The coil is oriented perpendicularly to a magnetic field whose initial magnitude is 3.2 T. Suddenly, the magnetic field vanishes in 0.4 s. a. What is the initial magnetic flux in the coil? b. What is the

    asked on August 26, 2013
  55. physics

    Rank the beat frequency from highest to lowest for the following pairs of sounds:a. 876 Hz, 871 Hz b. 786 Hz, 784 Hz c. 721 Hz, 728 Hz d. 542 Hz, 541 Hz

    asked on April 29, 2012

    The sum of a number and 20 times its reciprocal is 9. Find the number(s). Please show working

    asked on March 6, 2012
  57. physics

    The nearpoint of an eye is 123 cm. A corrective lens is to be used to allow this eye to clearly focus on objects 25 cm in front of it. What should be the focal point of this lens?

    asked on March 21, 2011
  58. AP Calculus

    A rectangle is inscribed between the parabolas y=4x^2 and y=30-x^2. what is the maximum area of such a rectangle? a)20root2 b)40 c)30root2 d)50 e)40root2

    asked on December 14, 2010
  59. Science

    The biome with the fewest seasonal changes is the A. temperate deciduous forest. B. grassland. C. tropical rain forest. D. coniferous (boreal) forest.

    asked on September 28, 2010

    A ball of mass 0.150kg is dropped from a height of 1.25m. It rebounds from the floor to reach a height of 0.960m. What impulse was given to the ball by the floor?

    asked on March 29, 2008
  61. AP Calculus

    2) Given the table below for selected values of f(x), use 6 trapezoids to estimate the value of (10)∫(1) f(x)dx x 1 3 4 6 7 9 10 f(x) 4 8 6 10 10 12 16

    asked on June 20, 2018
  62. Statistics

    The following is a histogram (right skewed) of the first ten terms of a geometric distribution with p = .4. The mean of this distribution is 2.5 and the standard deviation is approximately 1.93. What's the shape of the distribution of sample means for

    asked on February 18, 2016
  63. Math

    Alice, Bob, and Charlie are three siblings with ages a, b, and c respectively. Their combine age is 18 years. Charlie is older than Bob. Alice's age is equal to twice the difference between Bob's and Charlie's ages. Bob's age is equal the average of

    asked on September 22, 2014
  64. STATS

    Policy analysis searches for _____. a. infeasible courses of action b. the generation of information and collection of evidence of the benefits c. the consequences that would follow the implementation of various courses of action d. fluidity and does not

    asked on December 9, 2013
  65. Math

    4. Landon is standing in a hole that is 6.5 ft deep. He throws a rock, and it goes up into the air, out of the hole, and then lands on the ground above. The path of the rock can be modeled by the equation y = 0.005x² + 0.45x – 6.5, where x is the

    asked on March 11, 2013

    Help Please!!!! H2SO4(aq) = 2H+(aq) + SO42-(aq) What is the hydrogen ion concentration, in mol dm−3, when 1.50 g of sulfuric acid is dissolved in water to give 0.500 dm3 of solution

    asked on February 13, 2013
  67. physics

    What beat frequencies are possible with tuning forks of frequencies 258, 263, and 267 Hz?

    asked on April 29, 2012
  68. managerial economics

    Increasingly, employees are being allowed to choose benefit packages from a menu of items. For instance, workers may be given a package of benefits that includes basic and optional items. Basics might include modest medical coverage, life insurance equal

    asked on August 23, 2011
  69. College Chemistry

    a solution contains .25M Ni(NO3)2 and .25 M Cu(NO3)2. Can the metal ions be separated by slowly adding Na2CO3?Assume that for successful separation 99% of the metal ion must be precipitated before the other metal ion begins to precipitate, and assume no

    asked on March 12, 2010
  70. physics

    in a daring rescue by helicopter, two men with a combined mass of 172 kg are lifted to safety. a)If the helicopter lifts the menstraight up with constant acceleration, is the tension in the rescue cablegreater than, less than, or equalto the combined

    asked on March 8, 2010
  71. Composite Materials

    Can someone please help with this problem? A burnout test was performed to determine the volume fractions of constituents in a glass/epoxy composite. The following observations were made: Weight of empty crucible = 47.6504 g Weight of the crucible and

    asked on February 26, 2009
  72. Chemistry

    List the following in order of increasing pH of their 0.25 M solutions: NH4Cl, MgCl2, HCl, NaOCl, C6H5NH3Cl and NaClO2.

    asked on March 11, 2020
  73. Probability and Statistics

    A high school baseball player has a 0.193 batting average. In one game, he gets 7 at bats. What is the probability he will get at least 2 hits in the game?

    asked on December 6, 2017
  74. Statistics

    Imagine you're a researcher and you need to perform a one-sided test of an alternative hypothesis. You decide to conduct a significance test at the .05 level. Which of the following ranges of z-scores would make the test statistic significant at .05

    asked on March 4, 2016
  75. Algebra

    Find two points on the graph of the parabola other than the vertex and x-intercepts. k ( x ) = ( x − 1 )^(2) − 6

    asked on October 7, 2015
  76. Chemistry

    How many seconds does it take to deposit 81.5 g of Zn on a steel gate when 21.0 A is passed through a ZnSO4 solution?

    asked on May 21, 2015
  77. algebra

    A furniture maker uses the specification 19.88

    asked on February 24, 2014
  78. chem help

    How many moles of N are there in 2.6 moles of NaNO3?

    asked on December 9, 2013
  79. science

    The half-life of uranium-235 is 713 million years. Suppose a fossil originally had 26 grams of uranium-235. A geologist had the fossil tested and found that it now has only 3.25 grams of uranium-235. Approximately how old is the fossil?

    asked on November 22, 2013
  80. Math

    Solve for the length of the unknown side in the following right triangle. (Side AC is the hypotenuse.) Round your answer to two places, where applicable. Side AB ? Side BC=12 Side AC=19

    asked on July 18, 2012
  81. physics

    The heat of vaporization of ethyl alcohol is about 200 cal/g.If 2.4 kg of this fluid were allowed to vaporize in a refrigerator, find what mass of ice would be formed from 0 degree C water.

    asked on April 3, 2012
  82. Physics help please!

    Light waves with two different wavelengths, 632 nm and 474 nm, pass simultaneously through a single slit whose width is 7.63 x 10-5 m and strike a screen 1.30 m from the slit. Two diffraction patterns are formed on the screen. What is the distance (in cm)

    asked on March 30, 2012
  83. physics

    The value of g at Earth’s surface is about 9.8 m/s^2. If Earth were of uniform density (same mass/volume throughout), what would the value of g be inside Earth at half its radius?

    asked on March 6, 2012
  84. physics

    A small light source located 1 m in front of a 1 m^2 opening illuminates a wall behind. If the wall is 1 m behind the opening (2 m from the light source), the illuminated area covers 4 m^2. How many square meters will be illuminated if the wall is 3 m from

    asked on March 6, 2012
  85. physics

    What change in kinetic energy does an airplane experience on takeoff if it is moved a distance of 600 m by a sustained net force of 5400 N?

    asked on February 27, 2012
  86. Physics

    A rigid tank having a volume of 0.100 m3 contains helium gas at 150 atm. How many balloons can be inflated by opening the valve at the top of the tank? Each filled balloon is a sphere 0.300 m in diameter at an absolute pressure of 1.30 atm.

    asked on October 4, 2011
  87. Math

    A ladder is placed against a wall, with its base 2 m from the wall. The ladder touches the top of a 2 m fence that is 1.5 m from the wall. How high up the wall does the ladder reach? Thanks for answering! Your help is greatly appreciated.

    asked on September 4, 2011
  88. health

    The main purpose of a peer review committee is to A. collect and prepare information to be submitted to the NPDB. B. establish procedures for confidentiality of incident reports. C. identify activities that suggest guidelines aren't being followed. D.

    asked on May 31, 2011
  89. Physics

    In what direction does the force of mass point? I say - Always away towards the center of the circular path In what direction does the velocity of mass point? I say - Always away from the center of the circular path In what direction does the acceleration

    asked on September 10, 2010
  90. probability

    The life of a certain type of device has an advertised failure of rate .01 per hour. The failure rate is constant and the exponential distribution applies. (a)What is the mean time to failure? (b)What is the probability that 150 hours will pass before a

    asked on August 30, 2010
  91. chemistry

    Arrange the following compounds in order of increasing viscosity: Propanol, CH3CH2CH2OH; Propanediol, CH3CH(OH)CH2OH; Propanetriol , HOCH@CH(OH)CH2OH

    asked on June 23, 2010
  92. Chemistry

    Which product is formed by beta emission from phosphorus -32? The atomic number of phosphorus is 15. A)28 Al 13 B)30 Al 13 C)32 S 16 D)32 P 15 E)33 P 15

    asked on April 28, 2010
  93. Physics

    A passenger on a bus moving with uniform velocity lurches forward when the bus stops suddenly. Explain? I do not understand this

    asked on October 11, 2009
  94. Physics

    Why are the steam and ice points of water better fixed points for a thermometer than the temperature of a human body?

    asked on March 26, 2008
  95. isosceles triangle

    An isosceles triangle is a triangle that has two equal sides. Find AB, BC and AC. Determine if the triangle is isoseles or not based on the lengths of the three sides. can someone show me how to solve?please The triangle is isosceles if AB = BC, or BC =

    asked on July 26, 2007
  96. Geometry

    Is it possible for AB = 10, BC = 2x + 5 and AC = 5x, given that point B is the midpoint? If you are talking about lengths of a line segment ABC, with B the midpoint, then AB + BC = AC 15 + 2x = 5x 3x = 15 x = 3. But also we must have AB = BC for B to be a

    asked on July 26, 2007
  97. Math

    Convert the equation to polar form. 8x=8y So far, I got this: 8*rcosθ = 8*rsinθ But it's wrong.

    asked on March 25, 2019
  98. english

    Describe the narrow escape of the men aboard the Nautilus.

    asked on December 11, 2018
  99. Vectors

    Determine the equation of a plane, P3, that intersects the planes P1: x + y + 3z − 2 = 0 and P2: x − y + 2z = 0 in a point; a line.

    asked on October 15, 2018
  100. Math Statistics

    Lottery: I buy one of 250 raffle tickets for $5. The sponsors then randomly select 1 grand prize worth $250, 2 second prizes worth $100 each, and 3 third prizes worth $50 each. Below is the discrete probability distribution for this raffle. Prize P(x)

    asked on March 5, 2018


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