Answer:
1 joule = 0.737 foot-pound
Joule is the unit of work.
1 J = 1 N·m
In SI units
1 J = 1 kg· m/s²
0.737 foot-pound is the amount of work to raise 0.737 pounds one foot or raising one pound to 0.737 ft.
Carpet asorbs sound, so glass should make it echo.
Heat does not rise or fall because it is an energy being transferred. It is the hot air which rises because colder air is denser than hotter air.