Illustrates how kinetic energy is transferred from one body to another through elastic collisions. Explains formulas for calculating the exchange of energy. Defines concepts concerning stored energy, ...

Two particles with different masses collide elastically. Show that in the centre-of-mass reference frame the final speeds of the two balls are the same as before the collision. In the centre-of-mass ...

Electrocution on power lines is a major threat to many bird species across the world, in particular endangered species such birds of prey, which show the greatest incidence of electrocution. A new ...