In your job as a mechanical engineer you are designing a flywheel and clutch-plate system like the one in Example 10.11. Disk A is made of a lighter material than disk B , and the moment of inertia of disk A about the shaft is one-third that of disk B . The moment of inertia of the shaft is negligible. With the clutch disconnected, A is brought up to an angular speed ω 0 ; B is initially at rest. The accelerating torque is then removed from A , and A is coupled to B . (Ignore bearing friction.) The design specifications allow for a maximum of 2400 J of thermal energy to be developed when the connection is made. What can be the maximum value of the original kinetic energy of disk A so as not to exceed the maximum allowed value of the thermal energy?
In your job as a mechanical engineer you are designing a flywheel and clutch-plate system like the one in Example 10.11. Disk A is made of a lighter material than disk B , and the moment of inertia of disk A about the shaft is one-third that of disk B . The moment of inertia of the shaft is negligible. With the clutch disconnected, A is brought up to an angular speed ω 0 ; B is initially at rest. The accelerating torque is then removed from A , and A is coupled to B . (Ignore bearing friction.) The design specifications allow for a maximum of 2400 J of thermal energy to be developed when the connection is made. What can be the maximum value of the original kinetic energy of disk A so as not to exceed the maximum allowed value of the thermal energy?
In your job as a mechanical engineer you are designing a flywheel and clutch-plate system like the one in Example 10.11. Disk A is made of a lighter material than disk B, and the moment of inertia of disk A about the shaft is one-third that of disk B. The moment of inertia of the shaft is negligible. With the clutch disconnected, A is brought up to an angular speed ω0; B is initially at rest. The accelerating torque is then removed from A, and A is coupled to B. (Ignore bearing friction.) The design specifications allow for a maximum of 2400 J of thermal energy to be developed when the connection is made. What can be the maximum value of the original kinetic energy of disk A so as not to exceed the maximum allowed value of the thermal energy?
A 20cm radius turn-table is turning with a constant angular speed ω0=33rev/min . The turn-table has a moment of inertia I=5.0kg(cm)2 relative to the axis through its center. Call this central axis the z-axis. A piece of sticky gum with mass m=50g falls straight down on the turn-table and sticks at a distance of 10cm from the center.
What are the forces the tact on the system after the gum falls on the turn-table?
Group of answer choices
Weight of turn-table, Normal force on the turn-table, Weight of gum
Weight of turn-table, Normal force on the turn-table, Weight of gum, Normal force on gum
Weight of turn-table, Weight of gum
Weight of gum
What can you say about the net torque relative to the axis of rotation, after the gum falls on the turn-table?
Group of answer choices
there is a torque of 0.049 kg m2/s2, in the z direction
there is a torque of 0.098 kg m2/s2, in the z direction
there is no net torque in the z direction
What is the angular momentum…
A playground carousel is free to rotate about its center on frictionless bearings, and air resistance is negligible. The carousel itself (without riders) has a moment of inertia of 112 kg·m2. When one person is standing at a distance of 1.76 m from the center, the carousel has an angular velocity of 0.552 rad/s. However, as this person moves inward to a point located 0.714 m from the center, the angular velocity increases to 0.725 rad/s. What is the person's mass?
A bicycle with 0.80-m-diameter tires is coasting on a level road at 5.6 m/s. A small blue dot has been paintedon the tread of the rear tire.
Part A: What is the angular speed of the tires?Express your answer in radians per second.
Part B: What is the speed of the blue dot when it is 0.80 m above the road?Express your answer in meters per second.
Part C:
Chapter 10 Solutions
University Physics with Modern Physics (14th Edition)
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