pamdhuber3852 pamdhuber3852

16-12-2017
Physics

contestada

A 12.0-g cd with a radius of 5.81 cm rotates with an angular speed of 33.2 rad/s. what is its kinetic energy?

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prasadranesh prasadranesh

16-12-2017

use the formula 1/2*I*w^2 where w is the angular speed and I is the rotaional inirtia (for disk it is .5*mass*radius^2).

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