A small ball of mass 0.38 kg is attached to one end of a 0.850-m-long massless rod, and the other end of the rod is hung from a pivot. When the resulting pendulum is 29° from the vertical, what is the magnitude of the torque about the pivot? Number i Units

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A 1.7 kgkg , 20-cmcm-diameter turntable rotates at 140 rpmrpm on frictionless bearings. Two 450 gg blocks fall from above, hit the turntable simultaneously at opposite ends of a diameter, and stick. What is the turntable's angular velocity, in rpmrpm, just after this event? Express your answer to two significant figures and include the appropriate units.

4. A homogeneous, rigid cylinder of mass M and radius R is placed on a М,R small rectangular plate of mass m. There is sufficient static friction between the cylinder and the plate. The plate itself is placed on a flat, frictionless table. A constant force of magnitude F is applied to the plate in direction parallel to the table as shown on the diagram. Once the force F is applied, the cylinder goes immediately into pure rolling F т (no slipping or skidding). Find: a. The translational (linear) acceleration of the block, ap. b. The angular acceleration of the cylinder, a. c. The translational (linear) acceleration of the cylinder ac. Given variables: M, R, m, F

The figure provided shows a pendulum at an end point of its arc. Which statement below is true for the angular velocity at this particular point? The angular velocity is negative. The angular velocity is positive. The angular velocity is zero. The angular velocity approaches infinity.

A fan is spinning trying to cool down people during a hot summers day. It has a period of 0.940 s and a diameter of 26.8 cm. It begins to slow down and it stops after 5.00 s. How many revolutions did the fan make between the time it started to slow down and when it stopped? a) 2.66 revb) 7.98 revc) 16.7 revd) 137 rev