A CD with a Diameter of 12 $\times$ 10^-3 M/s
B) 6

question 41

Multiple Choice

A CD with a diameter of 12.0 cm starts from rest and with a constant angular acceleration of 1.0 rad/sec² acquires an angular velocity of 5.0 rad/sec.The CD continues rotating at 5.0 rad/sec for 15.0 seconds and then slows to a stop in 12.0 second with a constant angular deceleration.What is the tangential velocity of a point 4.0 cm from the center at the time 25.0 seconds from the start?

• A) 5.2 \(\times\) 10^-3 m/s
• B) 6.7 \(\times\) 10^-3 m/s
• C) 7.2 \(\times\) 10^-3 m/s
• D) 8.5 \(\times\) 10^-3 m/s
• E) 9.7 \(\times\) 10^-3 m/s

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Definitions:

Organizing

The management function that involves arranging resources and tasks to achieve objectives efficiently and effectively.

Entropy

A measure of disorder or randomness in a system, often associated with the second law of thermodynamics in physics.

Open Systems

A system is open or closed to the degree that it can exchange information and energy with its environment. A more open system can adapt to environmental changes.

Closed Systems

A system is open or closed to the degree that it can exchange information and energy with its environment. A closed system cannot adapt to environmental changes and is more likely to move toward entropy.