<span>radiation, hydrogen, and helium </span>
Sound waves actually travel much faster in water than air, but words and the direction of the noise are distorted.
its B 0.225kPa using the formula p=f/A then change the pascals into kpa
Average v = (initial v + final v)/2
= (14 m/s + 0 m/s)/2
= 7 m/s
Your average velocity during braking is 7 m/s
When the box IS on the shelf 2m above the ground,
its potential energy is
(weight) x (height) = (3 N) x (2 m) = 6 joules .
THAT's the work you have to do, to lift the box up to there.
