Planet Z-34 Has a Mass Equal to One-Third That of Earth

question 20

Multiple Choice

Planet Z-34 has a mass equal to one-third that of Earth and a radius equal to one-third that of Earth. With g representing, as usual, the acceleration due to gravity on the surface of Earth, the acceleration due to gravity on the surface of Z-34 is

• A) g/3.
• B) 3 g.
• C) 6 g.
• D) g/9.
• E) 9 g.

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Definitions:

Major Calyx

A part of the kidney that collects urine from the minor calyces before it moves to the renal pelvis.

Ureters

Tubes that transport urine from the kidneys to the bladder.

Renal Capsule

A tough, fibrous layer surrounding the kidney and providing it with protection and structure.