A constriction in a pipe reduces its diameter from 6.1 cm to 1.8 cm, Where the pipe is
wider, the fluid velocity is 8 m/s.
Find the fluid velocity where the pipe is
narrow.
Answer in units of m/s.

The process in which the nucleus of an atom splits into two lighter atoms, releasing a large amount of energy is nuclear

In a system, when potential energy decreases, then entropy also decreases. true false

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?