Answer:
4000m/s
Explanation:
It would be this because sound travels faster through a solid rather than a liquid.
It corrodes the copper by oxydation
Answer:
a = 2d / t²
Explanation:
d = ½ at²
Multiply both sides by 2:
2d = at²
Divide both sides by t²:
a = 2d / t²
Answer:
Explanation:
the light ray leaving a medium in contrast to the entering or incident ray.