Most popular questions and responses by Derick
  1. math

    A string of decorative lights is 28 feet long. The first light on the string is 16 inches from the plug. If the lights on the string are spaced 4 inches apart, how many lights are there on the string?

    asked on March 30, 2015
  2. chemistry

    Calculate the mass of Li formed by electrolysis of molten LiCl by a current of 6.7×104 A flowing for a period of 23 h . Assume the electrolytic cell is 86 % efficient. What is the energy requirement for this electrolysis per mole of Li formed if the

    asked on September 21, 2017
  3. science

    what physical property do all the following have in common:glass,water,carbon dioxide,plastic wrap,air? mass density, specific heat, thermal conductivity, X-ray absorption, and many others

    asked on December 30, 2006
  4. Physics

    Calculate the energy needed to accelerate a spaceship of mass 10,000 kg to a speed of 0.3c for intergalactic space exploration. Compare with the projected energy usage of the Earth in a decade 10^22J?

    asked on September 14, 2014
  5. Programming

    There is a bug in the sortArray method: one particular kind of input will cause a runtime error. In the box provided below, edit sortArray so that it behaves properly on these inputs. public void sortArray () { int beginP = 0; int endP = myArray.length-1;

    asked on November 9, 2009
  6. physics

    You are traveling in a convertible with the top down. The car is moving at a constant velocity of 16.6 m/s, due east along flat ground. You throw a tomato straight upward at a speed of 9.85 m/s. How far has the car moved when you get a chance to catch the

    asked on June 8, 2014
  7. physics

    two ends of a string in her hands and then moves her hands up and down so that a wave travels from one end of the string to the other end. In which case will she have a standing wave along the string?

    asked on February 14, 2012
  8. Physics

    The Stanford Linear Accelerator can accelerate electrons to 50GeV (50x10^9eV). What is the minimum wavelength of photon it can produce by bremsstrahlung? Is this photon still called an x-ray?

    asked on September 23, 2014
  9. Calc

    How do I do this related rates problem? A plane flying horizontally at an altitude of 1 mi and a speed of 510 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 6 mi away

    asked on November 10, 2009
  10. physics

    a 1.10 x 10 cubed kg car accelerates from rest for a time period of 5.0 sec. The magnitude of the acceleration is 4.60 m/s squared. determine the average power generated by the force that accelerates the vehicle

    asked on November 16, 2010
  11. Calculus

    2y^3 - 3xy = 4 1) Find dy/dx 2) Write an equation for the line tangent to the curve at (1,2) 3) Find d^2y/dx^2 at (1,2)

    asked on December 21, 2008
  12. writing

    how might someone who listened to the play from the beginning react differently from someone who tuned in late?

    asked on November 12, 2015
  13. math

    there are 6 times as many dogs as cats. if the total number of cats and dogs 21 how many dogs are there? 3 6 15 18

    asked on October 15, 2015
  14. science

    I have an essay about landforms on Friday what are some ideas?

    asked on October 12, 2015
  15. math

    i have a gallon of paint that contains 35% solids and 65% water.if i add 5% 6.4 more ounces of water to it what will the solids content be.can you show to figure this out thank you

    asked on March 31, 2010
  16. Algebra II

    The longer side of a triangle is 3 times the shorter side. The third side is 4 inches longer than the shorter. How long is the short side if the perimeter is more than 39 inches?

    asked on August 21, 2015
  17. Physics

    The Tevatron accelerator at the Fermi National Accelerator Laboratory (Fermilab) outside Chicago boosts protons to 1TeV (1000GeV) in five stages (the numbers given in parentheses represent the total kinetic energy at the end of each stage):Cockcroft-Walton

    asked on September 14, 2014
  18. Math

    Let f(x)=x+1 and g(x)= "squareroot" of x what are the domains of "f" and "g"

    asked on May 30, 2012
  19. Physics

    A television tube operates at 20,000V. What is min wavelength for the continuous x-ray spectrum produced when the electrons hit the phosphor?

    asked on September 23, 2014

    What will Happen in this Senerio? If someone deposits $15,000.00 into a Bank and the required reserves is 15% what will be the total increase in checking account deposits in the banking system and what will be the maximum loans available to the public?

    asked on November 28, 2009
  1. science

    I have to pick any landform I want what are some ideas?

    posted on October 12, 2015
  2. math

    still don't get it

    posted on March 30, 2015
  3. math

    they are both quadrilaterals so maybe. hope this helps.:)

    posted on March 30, 2015
  4. 3rd Grade Math

    25-9=16 boys. the rest are girls

    posted on March 30, 2015
  5. Math

    why did the chicken add its opposite to itself

    posted on August 27, 2013
  6. 7th grade math help quick please

    ya you go to connections academy the only thing you have to do to answer these questions is study

    posted on October 17, 2012
  7. 7th grade math ms. sue please help

    I had this same question are you in connections academy

    posted on October 17, 2012
  8. 7th grade social studies help quick please

    yea go lame

    posted on October 15, 2012
  9. 4th grade algebra

    1 2 0 -7 -14 -21 -10 -5 -10 3

    posted on November 16, 2010
  10. Calc

    How do I do this related rates problem? A plane flying horizontally at an altitude of 1 mi and a speed of 510 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 6 mi away

    posted on November 10, 2009
  11. Calculus

    o yeah, sry, i was accidentally on my sister's thing when i asked first

    posted on December 21, 2008