Physics, 02.02.2021 17:50 deaishaajennings123
A skater with moment of inertia 4kgm^2 is spinning with 2rev/sec with her hands and one foot extended when she pulls her hands and foot inwards she can spin with 4rev/sec. what is the moment of inertia of the skater with her hands and foot pulled inwards?
Answers: 1
Physics, 22.06.2019 00:50
Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?
Answers: 1
Physics, 22.06.2019 23:50
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Answers: 2
A skater with moment of inertia 4kgm^2 is spinning with 2rev/sec with her hands and one foot extende...
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