Write a sentence that explains the importance of electromagnets.
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Ответ:
Electromagnets are very important because they are used in different electrical appliances to generate different magnetic fields.
Explanation:
It is used in our daily lives in many ways
Ответ:
(iii) the same about both ends
Explanation:
The moment of inertia is the sum of the square of the distance from the axis of massage and rotation of each length of the rod. The moment of inertia can be expressed as I = imiri2. The connection of the rod is the product of the moment length and distance (square), so it is the same at both ends.