Derick
Most popular questions and responses by Derick
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 
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 
science
what physical property do all the following have in common:glass,water,carbon dioxide,plastic wrap,air? mass density, specific heat, thermal conductivity, Xray absorption, and many others
asked on December 30, 2006 
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 
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.length1;
asked on November 9, 2009 
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 
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 
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 xray?
asked on September 23, 2014 
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 
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 
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 
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 
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 
science
I have an essay about landforms on Friday what are some ideas?
asked on October 12, 2015 
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 
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 
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):CockcroftWalton
asked on September 14, 2014 
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 
Physics
A television tube operates at 20,000V. What is min wavelength for the continuous xray spectrum produced when the electrons hit the phosphor?
asked on September 23, 2014 
ECONOMICS
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

science
I have to pick any landform I want what are some ideas?
posted on October 12, 2015 
math
still don't get it
posted on March 30, 2015 
math
they are both quadrilaterals so maybe. hope this helps.:)
posted on March 30, 2015 
3rd Grade Math
259=16 boys. the rest are girls
posted on March 30, 2015 
Math
why did the chicken add its opposite to itself
posted on August 27, 2013 
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 
7th grade math ms. sue please help
I had this same question are you in connections academy
posted on October 17, 2012 
7th grade social studies help quick please
yea go lame
posted on October 15, 2012 
4th grade algebra
1 2 0 7 14 21 10 5 10 3
posted on November 16, 2010 
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 
Calculus
o yeah, sry, i was accidentally on my sister's thing when i asked first
posted on December 21, 2008