7. A ventilation fan with a moment of inertia of 0.034 kgm2has a net torque of 0.11 Nm applied to it. What angular acceleration does it experience? a. 5.3 rad/s2b. 4.0 rad/s2c. 3.2 rad/s2d. 0.31 rad/s2____ 8. A disk has a moment of inertia of 3.0 104kgm2and rotates with an angular speed of 3.5 rad/sec. What net torque must be applied to bring it to rest within 3 s?