Which city is known as the richest square mile on earth?.

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.

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

In which of the following is positive work done by a person on a suitcase