Physics, 03.12.2021 19:30 melodyfigueroa44
An ice skater with 0.62 kgm^2 moment of inertia is rotating with 3.2 rad/s with her arms closed. Suddenly she opens her arms and slows down. When she opens her arms her moment of inertia increases to 0.82 kgm^2. What is her final angular velocity.
Answers: 2
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22. the effect of threshold braking is to a cause skids. b. lock wheels. c. prevent locking of wheels. d. increase stopping distance.
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Physics, 22.06.2019 09:00
As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy
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Physics, 22.06.2019 13:40
Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.
Answers: 2
An ice skater with 0.62 kgm^2 moment of inertia is rotating with 3.2 rad/s with her arms closed. Sud...
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