Answer:
The doorbell transforms electrical energy into sound.
Explanation:
The doorbell MAY turn electrical energy into motion of a striker which then impacts a resonator creating sound. However all door bells do not have solenoids. Some are electronic playing recordings when activated.
All doorbells do produce sound, though.
a substance's density is the same at a certain pressure and temperature, and the density of one substance is usually different than another substance.
Yes it does (not to be mean its kinda stupid for you to ask)
Answer:
convection
Explanation:
Heat transfer by convection is caused by differences of temperature and density within a fluid.