The atomic particle that has a charge opposite to that of an electron is called a

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

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].

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply