Popular questions and responses by Xander
  1. Physics

    How far from a converging lens with a focal length of 15 cm should an object be placed to produce a real image which is half the size of the object? How do you solve this? Thanks!

    asked on August 3, 2014
  2. Statistics

    A forest fire is burning down a narrow valley 3 miles wide at a speed of 40 feet per minute. The fire can be contained by cutting a firebreak through the forest across the valley. It takes 30 seconds for one person to clear one foot of the firebreak. The

    asked on January 29, 2012
  3. algebra

    Q varies inversely as z,if q =7,when z=15.find z when q=49

    asked on October 4, 2017
  4. matlab

    Please help. I've made the variable for in_vector, but I'm having trouble figuring out how to get the vector to return a row vector of num_or_digits of length 10. Write a script that takes a vector of single-digit integers and counts the occurrences of

    asked on February 28, 2017
  5. Biology

    Compare and contrast the traits and growth patterns of opportunistic versus equilibrium populations.

    asked on October 17, 2014
  6. Physics

    Two identical capacitors are hooked in series to a 16.6 V emf. If the charge stored on any one of the capacitors is 0.88 micro-Coulombs after the capacitors are fully charged, what is the capacitance of either one of the capacitors?

    asked on August 1, 2014
  7. English... Cry, The beloved country

    What is the underlying message of all of Arthur Jarvis’s writing? How does reading his son’s writing affect the behavior of James Jarvis? Write at least five sentences.

    asked on April 4, 2012
  8. physics

    a crate weighing 3500 newton down an inclined plane at constant speed. The plane is 7.5 meter long. Its height is 3.0 meter. What is the coefficient of sliding friction between the crate and the inclined plane?

    asked on December 5, 2011
  9. english

    what is the purpose of agriculturist??

    asked on February 6, 2011
  10. bifurcated

    As the heading indicates, I do indeed have two questions. Is there a way to find out more about the Roman Catholic Church's positions concerning issues along the continuum of sex/gender/sexuality/sexual orientation? Could somebody point me in the correct

    asked on October 8, 2009
  11. geography

    Deforestation is the process whereby ( write a definition ) all i can find is the process where trees are cut down. is this right?

    asked on December 29, 2008
  1. math

    why do yal give false answers when its 21.734

    posted on October 16, 2019
  2. Chemistry

    8.8 ...... this is 100% the answer

    posted on March 1, 2016
  3. Chemistry


    posted on March 16, 2015
  4. chem

    1st I took 1.126e9 and multiplied it by 1.67262158e-27 kg to get your mass of 1.8833719e-18 kg. Then I did my dimensional analysis and had ((6.626e-34 J*s)*1s*100cm)/((1.8833719e-18 kg)(3.35e4 cm)*1m) and I got an answer of 1.05e-18 m using 3 sig figs. :)

    posted on November 15, 2012
  5. algebra

    This is all gibberish to me

    posted on November 4, 2009
  6. spanish

    Could you use behind in a sentence please so that I have some intended context? What part of speech would help out. . . It is sometimes difficult to mean what you say and say what you mean.

    posted on November 4, 2009
  7. spanish

    watch out for accents like é and á. I would use something with the verb tener, as in to have possession of allergies.

    posted on November 4, 2009
  8. substitution method

    It does not really matter so long as what used to read as having two variable letters gets knocked down to one variable letter. You can either describe x in terms of y or y in terms of x. Plug and chug, then solve with algebraic maneuvers.

    posted on November 4, 2009
  9. geography

    thanks so much for your help . i was a bit stuck with the question because i didn`t understand it. i thought it was the easiest out of the questions i had to answer but it wasn`t . thanks again!

    posted on December 29, 2008