A Sphere Is Constructed of Two Concentric Parts

question 49

Short Answer

A sphere is constructed of two concentric parts. The inner part is a solid sphere of radius 10.0 cm made of a material with density 4000 kg/m³. The outer part is a spherical shell with inner radius 10.0 cm and outer radius 20.0 cm. The material in the outer shell has a density 9000 kg/m³.
(a) What is the mass of the sphere?
(b) What is the average density of this sphere?

Grasp the significance of pilot testing and its role in refining research methods.

Differentiate between internal consistency, test-retest stability, and inter-observational reliability.

Acknowledge the importance of generalizability in research through repeated studies across different populations.

Comprehend the strategies for minimizing measurement errors and improving research accuracy.

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Definitions:

Heritability Ratio

A statistical estimate of the proportion of observed variation in a particular trait that can be attributed to inherited genetic factors in a population.

Genetic Variation

The diversity in gene frequencies within a population, resulting from mutations, genetic recombination, and other processes.

Phenotypic Variance

The variation in observable traits or characteristics within a population, attributable to both genetic and environmental factors.

Dividing

Dividing is the act of separating or partitioning an object, number, or amount into smaller parts or sections.