The moment of inertia of a CH4 molecule is 5.27x10-47kgm2. What is the minimum energy needed to start it rotating? Show full and complete procedure in a clear way. DO NOT SKIP ANY STEP

Start with a freely rotating hoop-like wheel of mass m = 30kg and radius 25cm, rotating at 125 rpm.1. Sketch this wheel, write out equations for and calculate it’s L and rotational KE.The wheel hits the ground, bounces and skids while negative accelerating, eventually locking to the ground so that its linear velocity equals its rotational velocity times its radius.2. Write this (roll no slip) equation. Sketch this final rolling wheel on the ground, include a vector for the linear velocity.3. Write an equation conserving angular momentum before and after the drop. Solve your equation for final angular velocity (both algebra and a number). Briefly explain.4. Solve for final rotational and linear kinetic energy and compare to initial rotational energy. How much energy was lost during the skidding process? (Formula and number).

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Just explain concepts, formulas, theories as if you were to solve....   A hoop and a solid disk both have the same radius and mass and negligible thickness. Assume that they are both rotating with the same constant angular speed. Which has the higher rotational kinetic energy?   If you see an object rotating, is there necessarily a net nonzero torque acting on it? Why or why not?   A skater rotates quickly on the ice. He pushes his arms out. What happens to his angular speed? Why?   A 100 gram meter stick has a wad of clay on one end of it. The stick is supported from a fulcrum point 33 1/3 cm from the clay. What is the clay's mass?   A student sits on a rotating stool holding two 3.0 kg objects. When his arms are extended horizontally, the objects are 1.0 m from the axis of rotation and he rotates with an angular speed of 0.75 rad/s. The moment of inertia of the student plus stool is 3.0 kg m2 and is assumed to be constant. The student then pulls in the objects horizontally to 0.30 m…

Problem An electric motor provides a constant torque of 12 N.m on a pivoting flywheel which has an inertia around the shaft of 3 kg.m2 and a friction constant of 3 kg.m2 / s. Motor it starts with silence. Zero tolerance is expressed in 2% to face value. 1. Calculate the total work done by the torque from rest until equilibrium is reached angular velocity! 2. Calculate kinetic energy when angular velocity equilibrium is reached! 3. Calculate the average power given by the motor from idle until it is reached equilibrium!

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Please help showing how to solve this question. According to Canvas, the answer should be 1.367 m/s.

The 4.0 m long bar shown in the figure is fixed so that it can rotate freely around point O at the end of the bar. Three forces are applied along the bar at the positions and angles shown. Use the convention that a counter-clockwise spin is positive. Which of the following forces creates zero torque on the bar? Mark all that apply. 27 N 16 N 30 +3.0 m→ 45° - 4.0 m- 33 N The 33 N force The 16 N force The 27 N force None

A metal plate is fixed at point B. Several forces are loaded onto the plate Question 5 as shown. Calculate the total moment about point B due to these loads. FA = 20 N FB = 30 N Fc = 20 N FD = 30 N 0 = 30°