Popular questions and responses by rich
  1. Chem

    In a 1.0× 10–2 M solution of CH3NH3Br(aq), identify the relative molar amounts from highest to lowest for : -Br- -OH- -CH3NH3+ -HBr -CH3NH2 -H3O+ -H2O

    asked on November 8, 2013
  2. math

    Jonah has a large collection of marbles. He notices that if he borrows 5 marbles from a friend, he can arrange the marbles in rows of 13 each. What is the remainder when he divides his original number of marbles by 13?

    asked on August 19, 2012
  3. literature

    Regarding the difference between fiction and nonfiction, which statement is most accurate? A. Nonfiction writers are more often free to move about in time and space. B. Literary fiction does little except inform and specify. C. Nonfiction writers are free

    asked on August 4, 2009
  4. Physics

    a long jumper jumps 10m and leaves the ground at an angle of 45 degrees.determine the speed he leaves the the ground at,

    asked on September 22, 2010
  5. Physics

    A uniform solid sphere rolls down an incline. (a) What must be the incline angle (deg) if the linear acceleration of the center of the sphere is to have a magnitude of 0.23g? (b) If a frictionless block were to slide down the incline at that angle, would

    asked on November 6, 2018
  6. Math

    I'm stumped on this one too: s e e d + i c e d ---------- s p i c e c= ___ d=___ e=___ i= ___ p= ___ s=___ Hint: Solve for s and i. Then is e is even or odd? Thanks for your help.

    asked on October 9, 2008
  7. Algebra

    Suzy is 10 years older than billy, and next year she will be twice as old as billy. How old are they now?

    asked on October 13, 2016
  8. Math

    Nick made an array that has 10 counters.Draw 4 arrays that he might have made.

    asked on October 20, 2015
  9. Chemistry

    If 1.20g of steam at 100.0 celcius condenses into 38.5 g of water, initially at 27 celcius what is final temperature of water

    asked on May 25, 2013
  10. Math

    If the graph of f ′(x) is continuous and decreasing with an x-intercept at x = c, which of the following must be true? The graph of f has a relative maximum at x = c. The graph of f has an inflection point at x = c. The graph of f has a relative minimum

    asked on January 31, 2018
  11. Finite

    The quantity demanded each month of Russo Espresso Makers is 250 when the unit price is $136. The quantity demanded each month is 1000 when the unit price is $106. The suppliers will market 750 espresso makers when the unit price is $72 or higher. At a

    asked on April 2, 2013
  12. physics

    What is the net force acting on a 25-N freely falling object? What is the net force when the object encounters 15N of air resistance? When it falls fast enough to encounter 25N of air resistance?

    asked on October 18, 2011
  13. physics

    Assume all temperatures to be exact, and neglect significant figures for small changes in dimension. A diver releases an air bubble of volume 4.0cm3cm^3 from a depth of 16mm below the surface of a lake, where the temperature is 8.0∘C. What is the volume

    asked on December 6, 2014
  14. chemistry

    1. A current of 3.0A deposited 2.0g of a metal in 20 minutes. (a) calculate the mass of the metal deposited by 1 faraday. (b) determine the atomic mas of the metals given that it is trivalent. [1 faraday =96500c] 2. A quantity of 3.35g of a certain group

    asked on June 14, 2019
  15. math

    a land developer is dividing 20 acres of land into 2/5 of an acre lot. if each lot is $15,000 what is the total value of the 20 acres.

    asked on December 6, 2017
  16. math

    If painter A can paint a room in three hours by themselves, and painter B can paint the same room in four hours, and painter C can paint the same room in six hours, how long will it take for all three to paint the room together if they do not get in each

    asked on January 25, 2010
  17. Biology

    Which compound has the highest free energy and produces the most ATP when oxidized? A. acetyl CoA B. glucose C. pyruvate D. carbon E. both pyruvate and carbon I've spent the past hour looking for this answer within my textbook or through Google searches. I

    asked on September 29, 2009
  18. Biochemistry

    Which of the following is the correct pH of a 211.7 mL solution (final volume) of pure water after 52.3 mL of 1.00 mM HCl was added?

    asked on September 17, 2013
  19. science

    5a 30 kg girl and a 25 kg boy face each other on friction -free roller blades . the girl pushes the boy ,who moves away at a speed of 1.0 m/s . the girls speed is how many m/s /

    asked on September 19, 2010
  20. Earth Sciencs

    What are the different types of seafloor sediments and what are the factors that control the distribution of each major sediment type? Where does each major seafloor sediment type tend to accumulate in greatest quantity?

    asked on August 17, 2010
  21. health

    What is the gap between the axon and the dendrite called

    asked on June 3, 2009
  22. math

    Find the area of a sector of a circle if the central angle measures 90 and the radius measures 4 inches. Leave your answer in terms of .

    asked on February 12, 2019
  23. icp

    you wreck a car travveling at 88 m/sec and decelerate at -200/s2 how far will the car crumble in at you.

    asked on March 28, 2011
  24. statistics

    Use the given confidence level and sample data to find a confidence interval for the population standard sigma. Assume that a simple random sample has been selected from a population that has a normal distribution. salaries of college graduates who took a

    asked on December 29, 2011
  25. physics

    A projectile is launched at a speed of 141m/s and an angle of 45 degrees. How fast is it moving at the top of its curved trajectory?

    asked on September 30, 2011
  26. geometry

    This is for SAT prep :( Semicircular arcs AB,AC,BD,CD divide the circle above into regions. The points show along the diameter AD divide it into 6 equal parts. If AD=6, what is the total area of the shaded regions? a.4pi b.5pi c.6pi d.12pi e.24pi Here is a

    asked on September 18, 2011
  27. human resources

    Castle’s Family Restaurant has eight restaurants in the Northern California area with approximately 300-340 employees. Most of the employees work part time, with approximately 40% full time. The operations manager, Jay Morgan, also acts as the HR manager

    asked on April 16, 2011
  28. literature

    Regarding the difference between fiction and nonfiction, which statement is most accurate?

    asked on August 4, 2009
  29. Calculus 3

    Find the magnitude of v. v = -10i + 3j v =

    asked on August 17, 2018
  30. physics

    A light spring having a force constant of 110 N/m is used to pull a 10.0 kg sled on a horizontal frictionless ice rink. The sled has an acceleration of 2.0 m/s^2 (a)By how much does the spring stretch if it pulls on the sled horizontally? (b)By how much

    asked on February 18, 2010
  31. Math

    Solve: _/_*_+_*_*_/_+_*_=100 Using only numbers 1-9 in any order.

    asked on April 26, 2016
  32. chemistry

    No clue where to start with this...if someone can just help me setup these problems or assist in any way that would be great. 1. d=2.507 g/1.22 mL = 2.054918033 g mL^-1 explain how both the rules for significant figures and the random error calculation

    asked on January 24, 2007
  33. chemistry to Dr. Bob

    Balance the equation: Note: If a chemical species coefficient is "1" then "1" needs to be entered in the field before that species. MnO4– + H+ + C2O42– Mn2+ + H2O + CO2 I'm not exactly sure how to do this question..Help?

    asked on April 26, 2008
  34. MATH

    se a graphing calculator or Excel to find the solution of the system of equations. (If the system is dependent, enter DEPENDENT. If there is no solution, enter NO SOLUTION.) 5x + 3y = 2 3x + 7y = −4

    asked on March 2, 2017
  35. chemistry

    if you want a solution that is .1m in ions what mass of na2so4 must you dissolve in125 grams of water assume total dissolution of ionic solid.

    asked on March 23, 2013
  36. College Physics Homework. Please help!

    A metal bar with a length of 0.30 m and mass of 0.5 kg is free to slide (no friction) on a set of vertical rails. The rails and bar together have a resistance of 500 ohms. The rails lie in a horizontal magnetic field with a strength of 0.04 T. The mass

    asked on May 7, 2012
  37. Math

    Can you help me with my son's homework question: Maria earned $110, which is $86 more than twice the amount Joan earned. How much did Joan earn? a. $12 b. $18 c. $24 d. $30 I would like to know the 5th grade equation that represents the answer. I guess I'm

    asked on September 3, 2008
  38. math

    How do you calculate the total number cells in a human body given that a cell is 1/1,000 of an inch in diameter and the average human body is 66 inches?

    asked on September 10, 2012
  39. Information Technology

    Choose one of the organizational departments of a business: accounting, finance, HR, or otherwise. What is the role of this department? What type(s) of information does the department need? How does the department use that information?

    asked on February 10, 2010
  40. justice

    No clue where to start with this...if someone can just help me setup these problems or assist in any way that would be great. 1. d=2.507 g/1.22 mL = 2.054918033 g mL^-1 explain how both the rules for significant figures and the random error calculation

    asked on January 24, 2007
  41. Math

    How do figure out the diameter in 1 mile circle

    asked on May 8, 2019
  42. math

    how do I find the number of zeros in the quotient of 8x10 tithe fifth power

    asked on September 14, 2015
  43. physics

    After a jump, a skydiver reaches terminal speed in 10 seconds. Does he gain more speed during the first second of fall or the ninth second of fall? which of these two seconds (1st or 9th) will he fall the greater distance?

    asked on October 19, 2011
  44. algebra

    Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 60 miles per hour and train B is traveling at 80 miles per hour. Train A passes a station at 5:15 A.M. IF train B passes the same station at 5:27A.M., at what

    asked on December 20, 2009
  45. Math

    Can someone help me with this math problem: e g g + e g g --------- p a g e a=____ e=____ g=____ p=_1___ How we started: p = 1, and g is greater than 5. Thanks!

    asked on October 9, 2008
  46. MATH

    The bottom of the ladder on a horizontal flat surface rests against a wall. It makes an angle of elevation of 35°. The bottom of the ladder is 42 ft from the base of the wall. How long is the ladder? Round your answer to the nearest whole number.

    asked on May 9, 2013
  47. Damon

    I have a question for Damon. Thank you for answering my question although you lost me when you came up with 37153 instead of 27153. Was this a typo or am I missing sonthing? IF anyone else can tell me I would like the help.

    asked on December 20, 2009
  48. managerial economics

    Question #6 The owner of Taco Joe’s has estimated that if he lowers the price of a burrito from $2.00 to $1.50, he will increase sales from 400 to 500 burritos per day. The demand for burritos is A) elastic. B) inelastic. C) unitary elastic. D) perfectly

    asked on July 25, 2008
  49. Chemistry

    I've been stuck on this question for awhile now. I'm having a lot of trouble figuring out how to start it. If you had added exactly 20.00 mL do d.i. water before the titration, calculate the molar concentration of OAc- would have been at the end of the

    asked on March 4, 2016
  50. math

    Cutting a piece of rope into fourths. Each piece is 16 inches long what is the length of the entire rope

    asked on January 23, 2014
  51. fundamentals of programming

    The ACME Company has approached you with a request to develop the psuedocode that will control the operations of their new series of vending machines. The program will be required to maintain the product inventory and money reservoir. The program should do

    asked on December 7, 2013
  52. Calculus

    Find the first 6 terms of the sequence b^1 = 5. B^n = 2b(n -1) when n>1. Then write an explicit definition of the sequence and use it to find the 12th term.

    asked on August 15, 2012
  53. Finance

    1.What would the major difference between ROI and WACC be? 2.What happens when folks use WACC for new items for budgeting purposes and then the price increases or the interest rate changes? 3.What you have to recalculate everything or just explain the

    asked on April 26, 2012
  54. Geometry

    Hi, For one part of my problem I have had to find the equation of a straight line that passes through two points, I have done this but now i need to determine whether a new point lies on this line by using the equation from the first part, how would I do

    asked on May 20, 2010
  55. algebra

    The equation y=-1777x+27,153 can be used to predict the number y of gun deaths in the United states x years after 2000, that is, x=0 corresponds to 2000, x=2 corresponding to 2002, x=4 corresponds to 2004, and so on. Predict the number of gun deaths in

    asked on December 20, 2009
  56. Science

    A 25 l partially filled weather balloon has a volume of 11 L at sea level where the pressure is 1 atm. It rises to an altitude of 6.096km (20,000 feet) where the pressure is only .48 atm. What is the resulting volume? At what pressure would it burst? Use

    asked on October 31, 2015
  57. Calculus

    find coefficient of x^8 in expanding of (x-2)^11

    asked on August 19, 2012
  58. Business Law

    W3 DQ2-sub Hazel is 84, and suffers from debilitating arthritis. Sometimes, she can barely walk. Every time Hazel has been unable to get around, her neighbor Ruth cooks and cleans for her until she feels better. Hazel has offered to pay Ruth, but Ruth

    asked on June 6, 2012
  59. math

    x times 8.625 = 755.65. What is x

    asked on March 26, 2012
  60. physics

    a mettallic rod of lenght l is rotated with speeed v in uniform magnetic field. find induced current if r is resistance.

    asked on June 19, 2011
  61. Biology

    Given the following: Pi + ADP → ATP The change in free energy (∆G) is greater than 0. Question: Can this be used to drive endergonic reactions?

    asked on September 29, 2009
  62. stats 1040

    you play a game in which you win $4 if you correctly predict the numbers of spots on a fair 6-sided die and you lose $1 if you don't correctly predict the number of spots. you plan to play 100 times. how do you set up a box model to represent your net

    asked on December 5, 2017
  63. Energy & Power

    If I have zinc@ -.76 & copper @.340. Put 9 in a series, what would my voltage be?

    asked on December 20, 2016
  64. Physics

    Please help me solve this, most likely simple, problem. I am just starting to learn physics and am finding it very confusing. If you could include a key to explain any formulas used it would be very helpful thank you. I have calculated GPE to be 1500J but

    asked on April 26, 2016
  65. math

    a piece of rope 80 centimeters long must be cut into 2 pieces. Each piece of rope will be used to form a rectangle. Where would the rope be cut if the area of 1 rectangle must be 1/4 the area of the other rectangle

    asked on March 6, 2013
  66. Math

    What is the value of x in the following problems, y=0 in all of them. y=5+2(3+4x) y=5-2(3+4x) y=5-2(3+-4x)

    asked on October 27, 2011
  67. MATH

    simplify |-7+2|-|-4|

    asked on December 15, 2010
  68. Chemistry

    Calculate the weight % of HOAc in pure Vinegar?

    asked on March 9, 2016
  69. math

    I'm purchasing a board to build a bookcase. Want to divide the board into 1. 75 foot sections. I need six sections what size board do I need

    asked on January 23, 2014
  70. pools

    how much water will a 10 foot by 36 inch pool hold?

    asked on June 22, 2011
  71. math

    What would the measurements be using the 1/4 in.= 9 ft to represent a 27 ft square?

    asked on March 17, 2011
  72. algebra

    Hi, how can I solve this equation using algebra? y= 9x+50, many thanks

    asked on May 27, 2010
  73. math

    how to Ifind scale factor if 1/4 inch =2feet

    asked on January 29, 2008
  74. chemistry

    .592grams of na2so4

    asked on March 23, 2013
  75. math 123

    f(x)=ax+b f(-2)=27 and f(1)=15 find the value of x when f(x)=-5 how do you work this out?? thanks so much

    asked on October 12, 2010
  76. genetics

    you want to build a protein that is 10 amino acids long with the number of different amino acid that can be used how many unique protein could you7 construct.? B)How would this information be encode in your genome?

    asked on September 12, 2008
  77. soil

    which soil resists wind erosion best

    asked on September 6, 2009
  1. Physics


    posted on November 8, 2019
  2. math

    Good way of calculation

    posted on June 22, 2019
  3. Math

    so B

    posted on January 31, 2018
  4. Chemistry


    posted on October 17, 2017
  5. Algebra


    posted on March 24, 2017
  6. math

    It does not work.

    posted on February 7, 2017
  7. English Check answers


    posted on January 16, 2017
  8. math

    I dont know

    posted on November 28, 2016
  9. math

    Which symbol makes the sentence true? 3/8 ______ 5/14.

    posted on October 2, 2016
  10. Physics

    Thank you very much, with a little googling I can follow along with your first answer. Thank you very much for your help.

    posted on April 26, 2016
  11. Chemistry

    The density is .9944 grams per mL

    posted on March 9, 2016
  12. Chemistry

    I have the molarity and it was .188

    posted on March 9, 2016
  13. Chemistry

    (3.0L H20)(1000g/L)(1 mol/18g) = 166.7 mol H2O

    posted on June 5, 2015
  14. college algebra

    Assuming that you mean squared (2x10^2)(3.5x10^2)= 200*350= 70,000= 7*10^4

    posted on April 4, 2014
  15. math

    You only rearranged them. You solved for y in terms of x

    posted on March 3, 2014
  16. English; grammar

    "Grammar" not "grammar"

    posted on March 2, 2014
  17. math

    x x+3 10 x+10>x+3 x+x+3>10 2x>7 x>3.5 4, 7, 10

    posted on March 2, 2014
  18. French

    Do you have them in black?

    posted on February 27, 2014
  19. Spanish

    Abuelito is the affectionate personal form of grandfather(abuelo) so it is better translated "grampa"

    posted on February 27, 2014
  20. English

    Remember that participles are a form of a verb.

    posted on February 27, 2014
  21. maths

    total is -85 divided by 10=-8.5

    posted on February 27, 2014
  22. maths

    Reiny's solution just tells us the max number of days not how many days were actually used. We know that 15 more days were used than originally planned with the full 300. 300d= the sum of the progression

    posted on February 27, 2014
  23. math

    7*10 man days After 5 days or 35 man days there are now 10 men to do 35 man days of work 35/10=3.5 days to finish the work for a total of 8.5 days

    posted on February 27, 2014