Thursday
October 23, 2014

Posts by Derick


Total # Posts: 21

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?
September 23, 2014

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?
September 23, 2014

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 (750keV), Linac (...
September 14, 2014

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?
September 14, 2014

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 tomato?
June 8, 2014

7th grade social studies help quick please
yea go lame
October 10, 2012

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
October 1, 2012

7th grade math
I had this same question are you in connections academy
October 1, 2012

Math
why did the chicken add its opposite to itself
August 1, 2012

Math
Let f(x)=x+1 and g(x)= "squareroot" of x what are the domains of "f" and "g"
May 30, 2012

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?
February 14, 2012

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
November 16, 2010

4th grade algebra
1 2 0 -7 -14 -21 -10 -5 -10 3
November 16, 2010

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
March 31, 2010

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?
November 28, 2009

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 from the station. (...
November 10, 2009

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; while(beginP<endP...
November 9, 2009

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 from the station. (...
November 8, 2009

Calculus
o yeah, sry, i was accidentally on my sister's thing when i asked first
December 21, 2008

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)
December 21, 2008

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
December 30, 2006

Pages: 1

Search
Members