the Doppler effect
it is the change in frequency or wavelength of a wave for an observer moving relative to its source
Answer:
i don't know ow to pronounce but some websites are
babel
**duolingo**
**means i recomend and free
Explanation:
Not only is polyvinyl acetate found in adhesives and face masks, its also found in water- based paints. It can also be use in the manufacturing of metal foils.
Answer:
“Picking quarrels and provoking trouble” first appeared in Chinese law under the vague crime of hooliganism, which, according to the Chinese criminal code in 1979, could also apply to gathering a crowd to fight, insulting women, disrupting public order or consensual se.xual acts between people of the same se.x.
Explanation:
