3. A 0.50-g insect rests on a compact disc at a distance of 4.0 cm from the centre. The disc's rate of rotation varies from 3.5 Hz to 8.0 Hz in order to maintain a constant data-sampling rate. a. What are the insect's minimum and maximum centripetal accelerations during its rotation around the disc?T b. What is the minimum value of the coefficient of static friction that would prevent the insect from slipping off the disc at the slowest rotation rate?

A car (m = 1069 kg) is moving at 16 m/s when it encounters a circular dip in the road of radius 97 m. Assuming the car maintains constant speed the entire time, what would be the magnitude of the force of gravity at the bottom of the dip? b.What is the magnitude of the car's acceleration at the bottom of the dip? c.What is the magnitude of the Normal Force on the car at the bottom of the dip?

C. The radius of revolution for the microcentrifuge is 8.58 cm and you need to spin at 700g. What RPM should you spin at?

Consider an annular disk rolling down an inclined plane. The annular disk has mass 154 [g], inner radius 8.00 [cm] and outer radius 12.0 [cm]. The inclined plane has a slope that forms an angle of 44.6° with the ground. A.  Suppose that the coefficient of static friction ?s is large enough so that the annular disk rolls without slipping. What is the magnitude of the translation acceleration felt by the annular disk's center of mass in the direction parallel to the slope? B. What is the minimum value that the coefficient of static friction ?s must take so that the annular disk rolls without slipping?