A fan rotating with an angular speed of 3.2 rad/s is turned off, a frictional torque of 0.135 N-m slows it to a stop in 20s. What is the moment of intertia of the fan?

Ahowler monkey is the loudest land animal and, under some circumstances, can be heard up to a distance of 4.6 km. assume the acoustic output of a howler to be uniform in all directions and that the threshold of hearing is 1.0 × 10-12 w/m2. what is the acoustic power emitted by the howler

What is the measurement of how fast an object moves relative to a reference point?

What is the increase in density of a medium due to wave travel?