As we know the relation between linear speed and angular speed as

we will say


so here we can say that angular speed will be given as


so it is rotating at angular speed 160 rad/s
Answer: 4.27 *10^6 N/C
Explanation: In order to calculate the electric field along the axis of charged ring we have to use the following expression:
E=k*x/(a^2+x^2)^3/2 where a is the ring radius and x the distance to the point measured from the center of the ring.
Replacing the data we have:
E= (9* 10^9* 0.3* 50 * 10^-6)/(0.1^2+0.3^2)^3/2
then
E=4.27 * 10^6 N/C
Answer:
hide on a place where there is no windows take a radio
Explanation:
The answer is : Open circuit