Two spheres are each rotating at an angular speed of 25.4 rad/s about axes that pass through their centers. Each has a radius of 0.330 m and a mass of 1.51 kg. However, as the figure shows, one is solid and the other is a thin-walled spherical shell. Suddenly, a net external torque due to friction (magnitude = 0.500 N-m) begins to act on each sphere and slows the motion down. How long does it take (a) the solid sphere and (b) the thin-walled sphere to come to a halt? Solid sphere Thin-walled spherical shell

Wolverine has an arm that is 1[m] long and claws that are 0.5[m] long. He's trying to knock over a wall. His shoulder can exert a torque of 1,500[N-m]. What is the ratio of force on the wall with vs without his claws extended? 1.5[m] point Pivot F /F Adamantium Wall without with claws claws A. 2/3 F Wolverine with В. 3/2 with claws С. 1 1.0[m] Pivot Adamantium D. I don't know but the torque direction is point Wall E. I don't know but the torque direction is Fwithout Wolverine Bare hands

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What is the force of static friction between the top and bottom blocks assuming the surface is frictionless and the surface between top and bottom blocks has no slipping?