Total # Posts: 9
A study was conducted in which the teachers were asked to rate students for a particular trait on a ten point scale. With the help of data given below find out whether significant difference exists in the rating of the students by the teachers.Teachers Students A B C D E F G X...
September 26, 2015
I'm driving along at a constant speed in my 3 metre long car when I notice that I am accidentally driving through a red light. If the rear of my car passes under the light 0.3 seconds after the front of my car, how fast am I driving in m/s?
February 3, 2014
The answer is (e). The power delvered at A is negative as displacement and force mg are oposite.Power delivered at B is zero and at C it is positive as mg and displacement are in the same direction. A<B<C
June 18, 2011