What is the change in the rotational kinetic energy

Assignment Help Physics

Reference no: EM13505163

Two disks of identical mass but different radii (r and 2r) are spinning on frictionless bearings at the same angular speed ?0, but in opposite directions. The two disks are brought slowly together. The resulting frictional force between the surfaces eventually brings them to a common angular velocity.

a) what is there final angular speed?

b) what is the change in the rotational kinetic energy?

Reference no: EM13505163

Questions Cloud

Find the velocity of second glider after the collision : On an air track, a 400 g glider moving to the right at 2.00 m/s collides elastically with a 500 g glider moving in the opposite direction at 3.00 m/s, Find the velocity of second glider after the collision

Analysis for the mixing department : Explain how the analysis for the Cooking Depart-ment will differ from the analysis for the Mixing Department - prepare a process cost report for the Mixing Department for January - Prepare a process cost report for the Mixing Department for January.

What is the force exerted by the person : A person pushes a 10 kg box from rest and accelerates it to a speed of 3.2 m/s with a constant force. what is the force exerted by the person

Find out the percent yield of hclo4 : 100.0g of Cl2O7 are mixed with excess of water obtaining 136.0g of periodic acid according to the following reaction. Determine the percent yield of HClO4.

What is the change in the rotational kinetic energy : Two disks of identical mass but different radii (r and 2r) are spinning on frictionless bearings at the same angular speed ?0, but in opposite directions. what is the change in the rotational kinetic energy

Determine the molecular formula. : A hydrocarbon has 93.71 % of C and 6.29% of H and has a molecular weight equal to 128 uma. Determine its molecular formula.

How far away from the object should you be : your digital camera has a lens with a 50 mm focal length and a sensor array that measures 4.82 mm x 3.64 mm. Suppose you're at the zoo, how far away from the object should you be

Explain gagnon company quality cost report : Prepare a Quality Cost Report in good form with separate sections for prevention costs, appraisal costs, internal failure costs, and external failure costs.

Compute the mass of the block of ice : A dock worker applies a constant horizontal force of 80.5 N to a block of ice on a smooth horizontal floor. What is the mass of the block of ice

User Account

All Pages