A Solid Cylinder Has a Radius of 0

question 56

Multiple Choice

A solid cylinder has a radius of 0.051 m and a height of 0.0030 m.The cylinder is composed of two different materials with mass densities of 1950 kg/m³ and 1470 kg/m³.The cylinder contains an equal mass m of each of the two materials,so that the total mass is M = 2m.What is the mass m?

• A)8.4 × 10^-² kg
• B)2.1 × 10^-² kg
• C)1.4 × 10^-² kg
• D)6.5 × 10^-² kg
• E)4.2 × 10^-² kg

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Definitions:

Rhodopsin

A light-sensitive receptor protein found in the rods of the retina, critical for vision in low-light conditions.

Photoreceptor

Sensory receptor that is sensitive to light—for example, rods and cones of the retina.

Lens Flattens

A process where the lens of the eye changes shape, becoming less curved, to focus distant objects clearly onto the retina.

Ciliary Muscles

Ring-shaped muscles located in the eye that control the shape of the lens to focus on objects at varying distances.