Two sides of the loop are parallel to the x axis, and two sides are parallel to the y axis. The integration path is such that side 1 is traversed in the positive x direction, side 2 in the negative y direction, side 3 in the negative x direction, and side 4 in the positive y direction. Calculate the contribution to the circulation integral due to each segment of the loop, and determine the net current through the loop that must be present.

The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force

How can you increase the strength of an electromagnet?

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.