Find the angular velocity of the cockroach-disk system

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Reference no: EM1350013

Q. A new experiment is created with the screen at a distance of 2 m from the slits (with spacing 0.08 mm). What is the distance between the second order bright fringe of light with l = 690 nm and the third order bright fringe of light with l = 404 nm? (Give the absolute value of the smallest possible distance between these two fringes: the distance between bright fringes on the same side of the central bright fringe.)

Q. A cockroach of mass m lies on the rim of a uniform disk of mass 8.00 m that can rotate freely about its center like a merry-go-round. Initially the cockroach and disk rotate together with an angular velocity of 0.200 rad/s. Then the cockroach walks half way to the center of the disk.

(a) What then is the angular velocity of the cockroach-disk system?

(b) What is the ratio K/K0 of the new kinetic energy of the system to its initial kinetic energy?

Reference no: EM1350013

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