Physics
a body resting on a rough hon zontal plane required a pell
hon incered at 30 to the plane put moved it, it was
found that a push of 2200 at se to the plane jest onexed for
books. astermine the weight of the body and the coeficien. t
of friction
som

How have the competing explanations' experiments on atoms affected the development of the atomic model?

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z

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?