A Sphere Has a Radius of 21 Cm and a Mass

question 28

Multiple Choice

A sphere has a radius of 21 cm and a mass of 1.9 kg. Its mass density is about:

• A) 2.0 * 10^-6 kg/m³
• B) 2.0 * 10^-2 kg/m³
• C) 1.4 kg/m³
• D) 14 kg/m³
• E) 49 kg/m³

---

Definitions:

Synapses

Junctions between two nerve cells, where impulses pass by diffusion of neurotransmitters.

Acid/Base Properties

Characteristics of substances based on their ability to donate protons (acids) or accept protons (bases), influencing their chemical reactions.

Tardive Dyskinesia

A nervous system disorder defined by uncontrollable, repeated bodily motions, frequently due to extended consumption of specific mental health drugs.

Schizophrenia

A mental health anomaly characterized by alterations in cognitive functions, sense perceptions, emotional states, and social engagements.