A cooling fan is turned off when it is running at 8.6 rad/s. It turns 25 rad before it comes to a stop. What is the fan's angular acceleration in rad/s2
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Ответ:
Both A and B
Explanation:
The interaction of magnetic fields and armature results into a rotational force of the armature hence turning motion. It's important to note that you will always need two magnetic fields in order to experience the force since one magnetic field is at the rotating armature and another at the casing. Considering the arguments of these two technicians, both of them are correct in their arguments.