Isolation. Is best to break infection
None because they are children play toys not scientific tools!
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Answer:
bcuz in which habit they have been addicted they can't change it easely after a long try also so it is hard to get people to change their behavior
The velocity (speed) of a sound wave (any wave in fact) is related to its frequency and wavelength by the equation . This is easy to remember since it's a distance divided by a time because frequency is the inverse of the period.
Since for sound traveling through the given solid object we have that and , the speed of sound will be:
this is what i looked up and got
Genes and the environment
