Answer:
Rust is a compound. What makes iron rust is its reaction with oxygen and moisture in the air.
Force is the change in momentum over a specific time. The change of momentum is therefore the force multiplied by the time that the force acts, so 3000x4.0=12000 N s=12000 kg m/s
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
The true scientific way is the last: using the water displacement method
Answer:
huh,? can you explain the question more please