Plz answer this...its urgent!!
its about gravitation..only 3 questions

1. in terms of fuel economy rank the following hybrid and electric vehicles, and justify application specific to each hybrid technology stop/start | mild hybrid | full hybrid | plug-in hybrid | full electric a. rank based on fuel economy b. justify your application specific for each technology

How many molecules are present in 3 mols of silicon dioxide (sio2)?

Blank liquids and gases exert a buoyant force on objects placed in them