See projectiles are very simple unless you understand its core concepts....projectile is nothing just mixture of upward motion and horizontal motion....
THE KEY IS FORGET THE NAME PROJECTILE...ITS JUST HORIZONTAL MOTION + VERTICAL MOTION
3. Sand has a low specific heat compared to air
It takes 2 years of graduate study in a subfeild, practicum experience, and a thesis.
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Because the Earth rotates through two tidal bulges every lunar day.
Time should not be messed with
for bad things could happen
so think before you act or you'll regret it