Hey there!
The answer would be B. The sound moves from air to water.
Sound travels through different mediums. It goes fastest in solids, a little slower in liquids, and slowest in air. Sound is a very fast wave, but remember that mediums can differ that. In a vacuum space, there is no sound at all. (ex. outer space)
Hope this helps !
No it won't. It'll vary inversely as the square of the separation.
I think the answer would be 1 watt but i'm not sure
Answer:
Explanation:
Newton's Gravitation Law
where G is a constant, M and M the masses e d the distance betwen masses.
Answer:
A
Explanation:
R=V/I
IF you double the resistance, it's become:
2R=(1/2)I
