Recent content by pharoh123

Homework Statement If I react butanol with toluenesulfonyl chloride (you can see that molcule here: http://sbillinghurst.files.wordpress.com/2010/03/440px-p-toluenesulfonyl_chloride_structure-svg.png) and Et3N and use H3C-CN as solvent what do I get? The Attempt at a Solution I know the...

yeah i could just put [x,y,z]=A + s*AB + t*AC where t and s are coefficients of the vectors AC and AB but i don't know how that helps

i am given an equation of a line: [x,y,z]=[-3,-6,-11]+k[22,1,-11] and i am being asked if it belongs to the plane defined by these three points A(2,5,6) B(-7,1,4) and C(6,-2,-9) so first i calculated all three vectors between the points so i have AB=[-9,-4,2] AC=[4,-7,-15] BC=[13,-3,-13] and...

i thought so too because the question asks you if it is actually possible to find the tension without the mass. I answered no but in the book`s answer key, there`s actually an answer (it`s 0.25N).

Homework Statement While in a car, a rubber ball is suspended by a cord. When the car slows down, the ball forms a 13 degree angle. Find the acceleration of the car when it is slowing down and the tension in the cord. I found the acceleration of the car, which is 2.3 m/s2 easily but when i try...

A 4 kg block is placed on top of a 8kg block, placed on a table with no friction,which is subject to force of 30N. What is the coefficient of friction needed between the two blocks so that the the top doesn't slide on the other one? What i did was find the acceleration of the bottom block and...