Prove : cos(3x)=sin(2x)​

If you mix chlorine lithium in nickel together which two elements would be the most reactive

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.

What is a good example of instantaneous speed