Which activity increases a buildings carbon footprint? reusing gray water using dual-flush toilets using motion-detection systems using plasma television

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction

The amount of work done is determined by 2 factors. describe an example of work (using the scientific definition) list the 2 factors that determine the amount of work done.

Which statements did both aristotle and ptolemy assume? check all that apply.