Answer:
conductor
Explanation:
A "conductor" is a material that allows the charges to pass freely from one body to the other. This causes a movement among the electrons and this means that<em> the charge will be passed entirely to the object receiving it.</em> This is also called <em>"conductive material."</em>
Examples of conductors are: <em>copper, aluminum, gold, silver, seawater, etc.</em>
The opposite of conductors are called "insulators." These do not allow the free movement of charges from one object to the other.
Examples of insulators: <em>plastic, rubber, paper, glass, wool, dry air, etc.</em>
Answer:
Explanation:
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Concave lens. These are used in making the objectives of reflection telescopes
Here it is given that speed of migrating Robin is 12 m/s relative to air
so we can say that
North
so it will be
Let North direction is along Y axis and East direction is along X axis
also it is given that speed of air is 6.7 m/s relative to ground
now as we know by the concept of relative motion
now by rearranging the terms
now we need to find the speed of Robin which means we need to find the magnitude of its velocity which we found above
So here we will say
so the net speed of Robin with respect to ground will be 13.7 m/s
