Answer:
B. energy
Explanation:
That's my best answer that i have out of the rest.
I know that ultrasounds are used to determine the sex of the fetus and its general health. I’m not sure about infrasounds.
Answer: They move more slowly, causing the forces of attraction holding them together to increase, resulting in a liquid.
Explanation:
The attraction overcomes the movement of particles, and bonds form.
Answer:
the branch of mechanics concerned with the interaction of electric currents with magnetic fields or with other electric currents.
Explanation: