The first one is actually 10 times as big as the second one.
Because of their places, the first one means 6000, and the second one means 600.
Answer: hertz (Hz) i think :)
Density can be any number, as long as it has the right units.
A unit of density has to be (a unit of mass) divided by (a unit of volume).
The most common one is gram/cm^3.
Answer: 83.3 W
Explanation: I think, I’m not sure. If I’m wrong correct me ;)
A wave will "break" because the bottom interferes with its oscillatory motion. Breaking of waves may occur anywhere that the amplitude is sufficient, including in mid-ocean. When waves enter shallow water they break because the motion of water in lower part of the wave nearest the bottom is slowed by friction so that their oscillation is faster than its supporting portion at the bottom. Thus, the wave collapses forward and breaks.
