mar

Newest questions and responses by mar
  1. Biology

    Traits like human height and skin color shows a wide range of phenotype, as opposed to just two of three. From the standpoints of genes and alleles, explain why is this so.

    asked on November 2, 2017
  2. Math Trig

    A ladder 15 m long can so be placed that it will reach a point on a wall 10 m above the ground. By tipping it back without moving its feet, it can be made to reach a point on another wall 8 m above the ground. What is the horizontal distance between the

    asked on March 3, 2017
  3. chemistry

    empirical formula for K 60.0% C 18.5% N 21.5% and P 7.5% I 92.5%

    asked on February 20, 2017
  4. History

    What were the characteristics of English colonies in the Chesapeake region, the Carolinas, the middle Colonies-Pennsylvania, New York, New Jersey, and Delaware-and New England prior to 1700? "The Restoration in the Colonies," and"The Middle Colonies and

    asked on January 26, 2017
  5. science

    Carbon+argon= + =

    asked on September 2, 2016
  6. algebra

    car averages 20 miles per gallon of gas in city driving and 30 miles per gallon in highway driving. At these rates, how many gallons of gas will the car use on a 300-mile trip if 4/5 of the trip is highway driving and the rest is city driving?

    asked on August 4, 2016
  7. math

    Square of a side x are cut from each corner of an 8 inches * 5 inches rectangle, so that its sides can be folded to make a box with no top. Define a function that can represent the volume of this box.

    asked on June 26, 2016
  8. physics

    Soft tissue has a linear attenuation coefficient in the range of μ = 0.35 cm−1 at 30 keV and μ = 0.16 cm−1 at 100 keV. For this problem we use μ = 0.21 cm−1, which applies at around 50 keV incident X-ray energy. (a) What fraction of X-ray photons

    asked on March 22, 2016
  9. chem

    the mass/volume percent of a NaCl solution in which 136 g of NaCl is dissolved in enough water to give a total volume of 4.90 L .

    asked on August 1, 2015
  10. math age problem

    Three years ago, Jim was half as old as Tom. Three years from now, Jim will be half as old as Michael. If Jim's age now is half as old as Michael's age three years ago, How old are Jim, Tom and Michael at present?

    asked on July 3, 2015
  11. Elementary Statistics

    determine whether the given is a statistics or parameter. 1.) There are 50 capitol states in the US. Answer: Parameter 2.) Among the flights included in the sample of flights in Data set 15 in Appendix B, 21% arrived late. Answer: Statistics

    asked on May 26, 2015
  12. chemistry

    600 gallons of 15 M nitric acid were added to a lake. The initial pH of the lake was 5.90 and the final pH was 3.70. What is the volume of the lake?

    asked on March 13, 2015
  13. chemistry

    How do I find the initial rate of reaction for 4.)? 2NO(g)+Cl2(g) ---> 2NOCl(g) [NO] (mol/L) [Cl2] (mol/L) Initial Rate (mol/L * min) 1.) 0.20 1.) 0.10 1.) 0.63 2.) 0.20 2.) 0.30 2.) 1.92 3.) 0.80 3.) 0.10 3.) 2.58 4.) 0.50 4.) 0.50 4.) ???

    asked on February 14, 2015
  14. chemistry

    how do I write the rate of the reaction for the following: Cl(g)+O3(g)-> ClO(g)+O2(g)

    asked on February 11, 2015
  15. chemistry

    the half-life of the reaction, at 34 degrees celsius and Ppan=13.2 torr, is 164.0hr. Calculate the rate constant for the reaction. confused on what to do here

    asked on February 11, 2015
  16. chemistry

    The question is: What statements are true for the standard entropy change for the conversion of ozone to oxygen? The choices to pick from are: 1. Molecular factors predict an increase in entropy 2. Stoichiometric factors predict a decrease in entropy. 3.

    asked on February 4, 2015
  17. chemistry

    sucrose change of H is -2226.1kj/mol fructose change of H is -1265.6KJ/mol calculate the enthalpy change for the hydrolysis reaction of sucrose. sucrose + H2O(l)-> C6H12O6(s)+Fructose Is it just the products-reactants?? I'm confused.

    asked on February 1, 2015
  18. chemistry

    Co2(aq)->Co2(g) calculate the free-energy change for this reaction at 25 degrees Celsius.

    asked on February 1, 2015
  19. chemistry

    what statements are true for the standard entropy change for the conversion of ozone to oxygen? Select all the apply? 2 O_3 (g) > 3 O_2 (g) Molecular factors predict an increase in entropy Stoichiometric factors predict a decrease in entropy. Molecular

    asked on February 1, 2015
  20. calculus

    The number of U.S. citizens 65 and older from 1990 through 2050 is estimated to be growing at the rate of, R(t)=0.063t^2 -0.48t+3.87, (0 less than or = t less than or = 15) million people/decade, where t is measured in decades and t = 0 corresponds to

    asked on December 1, 2014
  21. physics

    A train is moving parallel and adjacent to a highway with a constant speed of 24 m/s. Initially a car is 48 m behind the train, traveling in the same direction as the train at 35 m/s and accelerating at 3 m/s ^2 . What is the speed of the car just as it

    asked on September 14, 2014
  22. physics

    A speeder passes a parked police car at a constant speed of 25.8 m/s. At that instant, the police car starts from rest with a uniform acceleration of 2.68 m/s^2. How much time passes before the speeder is overtaken by the police car? Answer in units of s

    asked on September 14, 2014
  23. English

    Can anyone help me figure out what's wrong with this sentence? "The lighthouse is further away than it first appeared."

    asked on October 3, 2013
  24. statistics

    Assume that you are preparing a report on MM207 statistics students at Kaplan University to present to the Kaplan Board of Trustees. Prepare an appropriate graphical representation for each of the following variables. a) The different majors of students

    asked on May 29, 2013
  25. Physics

    Ten meters away from a long straight wire, the field is 10-4 (10 to the negative four) Tesla. What current flows through the wire? I know the answer is 5.0kA but I am not sure what formula to use.

    asked on March 12, 2013
  26. Mechanics

    A hunter aims directly at a target on the same level of 120m away. a.) If the bullet leaves the gun at a speed of 250m/s, by how much will it miss the target? b.) At what angle should the gun be aimed so the target will be hit?

    asked on February 7, 2013
  27. physics

    Amass of 0.5 kg is whirled at 120 rpm in a horizontal circle at the end of a string 2 meters long. Neglecting the force due gravity, find: (a) the angular velocity (b) the centripetal acceleration.

    asked on August 17, 2012
  28. Accounting

    Identify whether each description best applies to a periodic or a perpetual inventory system. a. Provides more timely information to managers. b. Requires an adjusting entry to record inventory shrinkage. c. Markedly increased in frequency and popularity

    asked on April 11, 2012
  29. accounting

    Discuss the ethics of what Amy is doing. Are there any consequences to her actions? How does the store account for Amy’s returns?

    asked on April 11, 2012
  30. accounting

    What items appear in financial statements of merchandising companies that do not appear in the financial statements of service companies? Why is there a difference?

    asked on April 11, 2012
  31. Accounting

    What is the difference between cash basis and accrual basis accounting? Why do accrual-basis financial statements provide more useful information than cash-basis financial statements? Describe when each method (cash basis and accrual basis accounting)

    asked on March 27, 2012
  32. Current political issues in the US

    Could any one help me name some current political issues here in the US? Thanks in advance!

    asked on November 17, 2011
  33. NEWTON'S LAWS (FORCES)

    Two boxes, A and B, are connected to each end of a light vertical rope, as shown in the following figure. A constant upward force 78.0N is applied to box A . Starting from rest, box B descends 12.3 m in 3.80s . The tension in the rope connecting the two

    asked on October 9, 2011
  34. physics

    Two boxes, A and B, are connected to each end of a light vertical rope, as shown in the following figure. A constant upward force 78.0N is applied to box A . Starting from rest, box B descends 12.3 m in 3.80s . The tension in the rope connecting the two

    asked on October 9, 2011
  35. acc 280

    P3-1 A Tony Masasi started his own consulting firm, Masasi Company, Inc., on June 1, 2008. The trial balance at June 30 is shown on page 129. MASASI COMPANY, INC. Trial Balance June 30, 2008 Account Number Debit Credit 101 Cash $7,150 112 Accounts

    asked on March 30, 2011
  36. acc 280

    E3-3 Conan Industries collected $100,000 from customers in 2008. Of the amount collected, $25,000 was from revenue earned on account in 2007. In addition, Conan earned $40,000 of revenue in 2008, which will not be collected until 2009. Conan Industries

    asked on March 30, 2011
  37. math

    there are 80 fourth graders in school of these, 35 were boys. what fractional part of the fourth graders were girls

    asked on March 24, 2011
  38. Chemistry

    We're learning about single displacement reactions. What happens when Mg + Zn two nitrate reacts? And when Al + Zn two nitrate reacts? Are there colour changes or precipitates formed?

    asked on March 17, 2011
  39. PHYSICS

    A 69.0 firefighter climbs a flight of stairs 22.0 high. How much work is required?

    asked on February 13, 2011
  40. algebra

    A line passes through (7, –6) and (8, –5).

    asked on December 2, 2010
  41. math

    A group of goats&duck s hav a total of 99 heads n legs among thm. Ther r twice as many ducks as ther r goats. How many r ther of ech?

    asked on November 19, 2010
  42. PHYSICS

    An object of mass M = 1,284 g is pushed at a constant speed up a frictionless inclined surface which forms an angle θ = 50 degrees with the horizontal. What is the magnitude of the force that is exerted by the inclined surface on the object? (I'm using

    asked on October 14, 2010
  43. math0301

    How do i translate this phrase into algebric expression and how do i label. Twice the difference of a number and eight

    asked on September 16, 2010
  44. algebra

    Please help, very lost Evaluate the exponential function for three positive values of x, three negative values of x, and at x=0. Show your work. Use the resulting ordered pairs to plot the graph; submit the graph via the Dropbox. State the domain and the

    asked on September 12, 2010
  45. algebra

    Solve. Where appropriate, include approximations to the nearest thousandth. If no solution exists, state this. log[5] (5x - 1) = 1

    asked on September 11, 2010
  46. psychology

    Joe ,aq high school junior , is considering a career in medicine but he is unsure if he want to commit himself to several more years of schooling .with whom is he most likely to consult with on this issue a)best friend b)girlfriend c)parents d)guidance

    asked on July 13, 2010
  47. 9th grade

    where do i put commas? where were you at 10 am on feburary 14 1992

    asked on April 17, 2010
  48. english

    It's always best not to start trouble that you can't finish.

    asked on January 16, 2010
  1. Statistics

    TTTTHHTHHHH

    posted on June 2, 2018
  2. biology

    Traits like human height and skin color shows a wide range of phenotype, as opposed to just two of three. From the standpoints of genes and alleles, explain why is this so. answer my question

    posted on November 2, 2017
  3. English 12

    1 B "the second coming" 2.A "gazing up into... 3.D go to heaven 4.C dark and somber 5.B "curse,bless me.. 6.A green as grass 7.D the school master 8.B parallelism 9.C desolate 10.A understatement 11.C discouraging 12.B it could no longer.. 13.D a

    posted on June 27, 2017
  4. physics

    F=ma =0.5×4 =2N

    posted on May 17, 2017
  5. Accounting

    1. Capital : 183750 Labor: 146774

    posted on March 15, 2017
  6. Math - Possible or Potential rational zeros

    2x^5+9x^3+3x^2-6

    posted on October 3, 2016
  7. Math

    dependent variable

    posted on November 15, 2015
  8. Science

    Leigh is right everybody I just got a 100%

    posted on November 14, 2015
  9. Math

    3.3

    posted on April 21, 2015
  10. chemistry

    ok so 34+273=307 307X1/2=153.5 .693/153.5=.0045 I think its a second order reaction what do I do for that??

    posted on February 14, 2015
  11. chemistry

    I'm not really sure what liquid H20 kj/mol is?

    posted on February 3, 2015
  12. chemistry

    The question is: What statements are true for the standard entropy change for the conversion of ozone to oxygen? The choices to pick from are: 1. Molecular factors predict an increase in entropy 2. Stoichiometric factors predict a decrease in entropy. 3.

    posted on February 2, 2015
  13. Physics

    Apparently you must use sine instead of cosine. Im still on a mission to find out why though.

    posted on December 2, 2014
  14. calculus

    so it would not be 50 either but 5?

    posted on December 1, 2014
  15. calculus

    since it's measured in decades

    posted on December 1, 2014
  16. calculus

    how did you get the 150? I was thinking it would be 50

    posted on December 1, 2014
  17. Quantum Physics

    a) What quantum state do you have to input in order to get output |00⟩ ? b) What quantum state do you have to input in order to get output |11⟩ ?

    posted on March 17, 2013
  18. Current political issues in the US

    It would be very much helpful if you specify those issues you mentioned (: Thanks!

    posted on November 17, 2011
  19. Business Communication 1

    19. a

    posted on June 21, 2011
  20. finance

    What major benefits do corporations and investors enjoy because of the existence of organized security exchanges?

    posted on May 7, 2011
  21. Math

    what's the 32.2ft/s^2

    posted on May 2, 2011
  22. math

    there are 80 fourth graders in school of these, 35 were boys. what fractional part of the fourth graders were girls

    posted on March 24, 2011
  23. Economics

    animation

    posted on March 23, 2011
  24. Childcare

    A. STYROFOAM

    posted on July 13, 2010
  25. chemistry

    what two? metals that will not generate hydrogen gas when treated with an acid

    posted on April 1, 2009
  26. Mitosis

    the phases of mitosis are prophase, metaphase, anaphase, and telophase.

    posted on March 29, 2008