Consider a variant of the equipartition theorem where there is a part of the energy of a microstate, which depends on a coordinate (or momentum component) q as b|q| where q can take on continuous values from - to , |q| is the absolute value of q, and b is a positive constant. show that such a part of the energy contributes an average energy of kt instead of kt/2. explain your steps.

20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?

Whithin which type of system is neither the total mass nor the total energy conserved ? a. open b. connected c. isolated d. closed