Which of These Techniques Has NOT Provided a Means by Which

question 74

Multiple Choice

Which of these techniques has NOT provided a means by which astronomers can infer the presence of dark matter in the universe?

• A) measurement of the orbital speeds of stars near possible supermassive black holes at the centers of galaxies
• B) measurement of the orbital speeds of stars in the outer regions of galaxies
• C) observation of the bending of light (gravitational lensing) from remote galaxies as it passes through intervening clusters of galaxies
• D) measurement of the line-of-sight speeds of individual galaxies in clusters of galaxies

Identify and differentiate between primary and secondary characteristics of diversity in the workplace.

Learn the roles and differences between arbitrators and mediators in resolving labor disputes.

Understand the concepts and applications of different management and motivation theories, including Theory Z, Maslow's hierarchy of needs, and Herzberg's two-factor theory.

Identify the factors that contribute to low morale and their effects on productivity and turnover.

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Definitions:

Abstract Class

A class in object-oriented programming that cannot be instantiated on its own and is designed to be subclassed, defining or inheriting common characteristics for subclasses.

Polymorphism

The ability in programming to present the same interface for differing underlying forms (data types), allowing methods to be used in a more generic way.

Dynamic Binding

Dynamic binding is a programming concept where the code to be executed in response to function calls is determined at runtime.

Method Association

Relates to how a method is linked or connected to classes or objects in object-oriented programming.