Physics, 20.03.2020 23:33 zakarycrane9576
A cockroach of mass m lies on the rim of a uniform disk of mass 6.00*m that can rotate freely about its center. Initially the cockroach and disk rotate together with an angular velocity of 0.362 rad/s. The the cockroach walks halfway to the center of the disk.
(a) what then is the angular velocity of the cockroach-disk system?
(b) What is the ratio of the new kinetic energy of the system to its initial kinetic energy?
Answers: 3
Physics, 21.06.2019 15:30
Taylor's experiment: 1. accurately measured the speed of light 2. locked together the phases of two light sources so that the interference pattern would not shift 3. showed that man's reaction time was much slower than the speed of light 4. showed that individual photons have wave characteristics
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The image shows the positions of a car on a roller coaster track. arrange the cars in order based on their gravitational potential energy. begin with the lowest potential energy and end with the highest.
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Physics, 22.06.2019 22:20
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A cockroach of mass m lies on the rim of a uniform disk of mass 6.00*m that can rotate freely about...
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