A box that has a mass of sitting at the top of a hill has a potential energy of 196j at a height of 2m.

force tends to be low and long diustance masses are high

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.