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:

Dendritic Cell

A type of immune cell with a key role in initiating and regulating the immune response, capable of presenting antigens to T cells.

Reticular Layer

The component of the dermis beneath the epidermis, consisting of collagen and elastin fibers that give skin its resilience and flexibility.

Dense Irregular Connective Tissue

A type of connective tissue with collagen fibers randomly arranged, providing strength and resistance in multiple directions.

Areolar Connective Tissue

A type of loose connective tissue that provides a cushioning and supportive framework for organs and other tissues.