Answer:they are used to generate sound waves in the ultrasonic range
Explanation:transducers are used to generate sound waves in the ultrasonic range ,by turning electrical energy into sound
The reaction would be Exothermic
Answer:
gravity
Explanation:
the force is gravity that pulls the ball downward
Energy levels inside an atom are the specific energies that electrons can have when occupying specific orbitals.
Answer:
Surface tension is also a property that enables water to travel against gravity.
Explanation:
Surface tension is a property of a liquid that holds the surface together and allows it to resist an external force.
