How does sound energy travel?
In strings
In beams
In pulses
In waves
Giving out Brainliest

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j ?

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

Why should seat belts not be mandatory quick plz