Which of these is not true about weight? a) it is a measurement of how heavy an object is. b) it is always the same as mass, regardless of gravity. c) it is affected by an object’s mass and the force of gravity. d) it is commonly measured in pounds

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].

Often called simply "velocity," this is the velocity of an object at a particular moment in time.

Four identical lab carts each have a mass of 200 kg. different masses are added to the carts and the velocities are measured. all carts move to the right.