In electromagnetic waves, frequency is inversely proportional to what?

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?

Sound is a disturbance that travels through a medium as a