<span>Circumference = 2 * pi * r
62.8318 = 2 * 3.14159 * 10 cm
62.8318 * 15 rotations / 42 seconds = 22.44 cm / second
22.44 cm / 100 cm per meter = .2244 m / s</span>
It has both kinetic and potential
Answer:
Ferromagnetism, physical phenomenon in which certain electrically uncharged materials strongly attract others. Two materials found in nature, lodestone (or magnetite, an oxide of iron, Fe3O4) and iron, have the ability to acquire such attractive powers, and they are often called natural ferromagnets.
Hope this help :)
Frequency of a sound wave is commonly referred to as pitch. That is the specialized name for frequency of a sound wave.
Just remember it as pitch.