naturally occurring radioactive elements have been around since the Earth's formation
if there was no atmosphere,the tiny molecules of gases and dust particles will gather together and rain down while the sun shine on the particles making the color glow because the colors are combining into various of colors looking like the galaxy.
0.304 cm I think - let me check
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.
Answer:
Explanation:
As we know by Bernoulli's principle
here we know that
also we know that
now we have