If the work done by a battery to move a unit charge through the battery from one terminal to the other is doubled, what is the effect on the battery's emf?a. emf becomes zero. b. emf is halved.

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

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].

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost