Draw an X on the illustration below to show one location in which a magnetic object would be attracted to the magnet. Draw an O to show one location in which a magnetic object would not be attracted to the magnet.

An observer that stands still as the electron moves by him, will observe

Considering only the earth's rotation, determine how much later the asteroid would have had to arrive to put the explosion above helsinki at longitude 25˚ e? this would have obliterated the city.

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.