[30 Points]Use the following information to determine the velocity AND direction ( angle) of the 30 kg object AFTER the collision :

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

You can decrease the resistance of a length of wire by

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?