Most savage races do not understand how the galaxy works. let's see how well you humans interpret a simple observation. the fact that we find o and b stars in the disk of our galaxy but not the halo suggests

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.

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?

The energy equivalent of the rest mass of an electron is