(Solved): The 21- \( \mathrm{cm} \) diameter disk in (Figure 1) can rotate on an axle through its center. Wha ...

The 21- \( \mathrm{cm} \) diameter disk in (Figure 1) can rotate on an axle through its center. What is the net torque about the axle? Express your answer in newton-meters to two significant figures. Figure \( \chi \) Incorrect; Try Again; 9 attempts remaining