How much force would be necessary to pull up the 1000 newton box
pictured above?

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?

Acar of mass 800kg is moving at a speed of 2.2m/s.

Match each type of lever with the correct diagram. 1. first-class 2. third-class 3. second-class