Featured Questions from Homework Day

How do you make 1L of a 0.4% NaOH solution?

October 21, 2009

How do you make 1L of a 0.4% NaOH solution? What will be the molarity of this solution?

What is the derivative of…?

October 21, 2009

What is the derivative of sin(3x+1)cos(2x^3) using the chain rule?

-Submitted by Josh M

Find the electric field a distance z above the center of a square loop

October 21, 2009

But seriously though please, Find the electric field a distance z above the center of a square loop (side a) carrying uniform line charge lambda.

-Submitted  by James

GDP Question

October 21, 2009
What is the GDP of China compared to the United States?
–Submitted by Mariah O’Toole from Greenville Technical College

Radioactive Decay Question

October 21, 2009

1)The half-life of Cesium-137 is 30 years. With a 100gram sample. How much of the sample will remain after 50 years.

–Submitted by Scott Kaufman from University of Kentucky

What is the take-off velocity of…?

October 21, 2009

What is the take-off velocity of a 30-kg ball that is kicked at an angle of 45 degrees to the horizontal and travels 20 meters?

Submitted by Steve MacAdams – Howard University

How many words can be made from the word ‘Halloween’?

October 20, 2009

How do I find all the possible words created from the word Halloween?

-Submitted by Oliver Nguyen from CSUDH