Answer:
learning about the different functions of the body and therefore they have enough practice in order to have a clean and safe operation
Explanation:
The time for the echo to return is directly proportional to the distance. vw = fλ. In a given medium under fixed conditions, vw is constant, so that there is a relationship between f and λ; the higher the frequency, the smaller the wavelength.
Answer:
hope it helps......
Explanation:
Pressure, in the physical sciences, the perpendicular force per unit area, or the stress at a point within a confined fluid.
Answer:
water
Explanation:
water is not an element, it is a molecule
