If a child is swinging back and forth on a swing. Changes in her kinetic and potential energy are happening each moment .
<h3>What is mechanical energy?</h3>
The sum of all the energy in motion (total kinetic energy) and all the energy that is stored in the system (total potential energy) is known as mechanical energy .
As given in the problem a child is swinging back and forth on a swing. Changes in her kinetic and potential energy are happening each moment .
At the extreme end of the swing, the potential energy of the child is maximum and the at lowest height of the swing the kinetic energy of the child is maximum .
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Answer:
The most appropriate answer would be A. The particle is a virus because it does not use energy and cannot reproduce by itself.
Virus is defined as a small infectious agent that carry its own genetic material (DNA or RNA) but divides only in the living cells of other organisms (bacteria, human, animals, plants etc).
They are acellular in nature and thus are not able to reproduce on their own. They use the metabolism and machinery of the host cell in order to produce and assemble multiple copies of themselves in a cell.
They attach to the specific binding site of their target cells and inject their genetic material into the cell. The host cell's machinery is then used to replicate, transcribe and translate viral genetic material.
The viral genome produced are assembled in the protein cascade. They are then released by causing bursting of the infected cell.
Answer:
The presence of starch in leaves is testing with the Iodine test.
Explanation:
First, chlorophyll is removed from the leaf by boiling it in alcohol.
Then, two drops of iodine solution are put onto the leaf.
If the colour changes to blue, it indicates the presence of starch.
If it does not, there is no starch.
I hope this helps!
-Bella
<em>BrainlyBluebell</em>
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