Answer:
Combinations of SI units that are used to measure quantities such as speed, volume, and pressure are called derived units.
The cause of the beats is that t<span>he two waves produced have different frequencies. The frequencies will result to the different energy to be emitted causing it to have beats or sound. The higher the frequency, the higher the pitch and vice versa.</span>
A vasectomy disables a man in making sperm so therefore would not be able to impregnate I woman
Which are in constant motion.