There is 2 screenshots due to it being cut off .. but this is Physical Science and I really need help . I give brainlliest

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change? work power gravitational energy chemical energy

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?