Which list of the four substances is in order from quickest to heat/cold to slowest to heat/cold

I'm having some difficulty seeing the diagram clearly.but the question says there's a net inward force on the object.so we know right away,  from newton's 2nd law of motion, thatthat baby is accelerating.  it doesn't even matter which way thenet force is pointing.  if there's any net force, then either theobject's speed or else its direction must be changing.

Idk

Ur mom because that makes a lot of sense

A.throttle body— mounted regulator