You do 174 j of work while pulling your sister back on a swing, whose chain is 5.10 m long, until the swing makes an angle of 32.0° with the vertical. what is your sister's mass?

How do the kidneys affect homeostasis

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?

As the distance from a magnet increases, what happens to the magnet force?