centripetal acceleration is given by formula

given that


now we have




so the ratationa frequency is given by




Answer:
A physical change is a change to the physical—as opposed to chemical—properties of a substance. They are usually reversible. The physical properties of a substance include such characteristics as shape (volume and size), color, texture, flexibility, density, and mass.
The potential of electrons in a circuit can be increased by the action of a battery.