Identify at least eight familiar items that consumes energy. Identify the items by the form of energy they use, either Kinetic or Potential.

11. you want to calculate the displacement of an object thrown over a bridge. using -10 m/s2 for acceleration due to gravity, what would be the total displacement of the object if it took 8 seconds before hitting the water?

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?