light hitting a rough surface would most likely:
reflect.
become diffused.
follow the law of reflection.
none of the choices are correct.
isaac newton was significant to the study of:
mathematics.
physics.
optics.
all of the choices are correct.

Which of the following is an example of units for speed

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.

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?