Answer:
Because the log is hollow or is less dense
Explanation:
If a log has little density, it will float. While sand is dense and completely solid, so it will sink.
Answer;
A barrier, a surface or a boundary
Explanation;
Reflection is the property waves that occurs due to the bouncing back of a wave after it strikes a barrier.
Reflection involves change in direction of a wavefront at an interface between two different media such that the wavefront returns into the medium from which it originated. In other words, the direction of the wave changes when they bounce of a barrier or a surface.
Answer:
it would be 10km
Explanation:
because that reaches max height before it falls stupid
<span>Atoms with the same atomic number but different atomic mass are called:
<span>Isotopes</span>
</span>
5.08
hope you got it right !
