Answer:
It's A
Explanation:
As the waves progress through the medium, the particles they are made of move perpendicular to the direction in which the waves move. The particles do not move with the wave. So waves transmit energy but not matter as they progress through a medium.
Proton positive; electron negative; neutron no charge<span>. </span>The charge<span> on the proton and </span>electron<span> are exactly the same size but opposite. The same number of protons and </span>electrons<span> exactly cancel one another in a neutral atom.
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hoped it helped
Answer:
a) moves down
b) moves down
c) level remains same
Explanation:
Given that the anchor is initially on the floating boat.
a)
In this condition initially the the volume of water 
displaced is to balance its weight.
Now,
We've, the density of steel 
and the density of water 
When the anchor is dropped into water:
The volume of water displaced be 
which will be equal to the volume of anchor since it is immersed into it.
...................(1)
So the level of water falls when the anchor is dropped into water.
b)
Now, when the anchor is thrown on the ground the water has now less weight to balance so the water level falls down.
c)
When the cork on the from the boat is dropped into the water and it still floats then it must displace same amount of water, hence there should be no change in the water level.
An electropherogram, or electrophoregram, is a record or chart produced when electrophoresis is used in an analytical technique, primarily in the fields of molecular biology or biochemistry.
...
These genotypes can be used for:
genealogical DNA testing.
DNA paternity testing.
DNA profiling.
phylogenetics.
population genetics
hope this helped :)
