Which is an example of a physical change? 1) gasoline ignites 2) water evaporates 3) a nial rusts 4) wood rots

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

The photo shows sugar dissolved into a solution with excess sugar at the bottom of the jar this type of solution is classified as a. unsaturated b. compound c. saturated d. plasma