Planets a and B Are Uniform Solid Spheres That Rotate $\omega$

question 52

Multiple Choice

Planets A and B are uniform solid spheres that rotate at a constant speed about axes through their centers. Although B has twice the mass and three times the radius of A, each planet has the same rotational kinetic energy. What is the ratio $\omega$ _B/ $\omega$ _A of their angular speeds?

• A)0.055
• B)0.093
• C)0.165
• D)0.191
• E)0.236

---

Definitions:

Transduce

To convert energy from one form into another, as in the process by which sensory organs change physical stimuli into nerve signals.

Neural Messages

Information transmission through electrical and chemical signals within the nervous system.

Electromagnetic Energy

Energy that is reflected or emitted from objects through electrical or magnetic waves traveling through space.

Gamma Waves

Brain waves that are associated with perception, consciousness, and complex cognitive processing.