Luis wanted to know which of his 4 toy cars is the fastest. he conducted an experime and recorded his results in the table shown below.
car track 1 track 2 track 3
1 2.0 s 2.3 s 4.0 s
2 2.5 s 3.0 s 4.5 s
3 4.0 s 4.6 s 8.0 s
4 1.5 s 2.0 s 3.5 s
what were the dependent and independent variables in luis's experiment?

The scalar triple product computes the magnitude m of the moment of a force vector f about a specified line. it is m = (r × f) · n, where r is the position vector from the line to the point of application of the force and n is a unit vector in the direction of the line. use matlab to compute the magnitude m for the case where f = [12, −5, 4] n, r = [−3, 5, 2] m, and n = [6, 5, −7].