What is the good conductor of electricity???​

The functioning of an electron transport chain is analogous to a) a slinky toy going down a flight of stairs. b) a canoe going over a waterfall. c) a person climbing a flight of stairs one step at a time. d) a person leaping from the top to the bottom of a flight of stairs in one jump.

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

Why do astronauts in the space shuttle weigh less?