A 50-M Radius Playground Merry-Go-Round with a Moment of Inertia of of 2000

question 11

Multiple Choice

A 5.0-m radius playground merry-go-round with a moment of inertia of 2000 kg • m² is rotating freely with an angular speed of 1.0 rad/s.Two people,each having a mass of 60 kg,are standing right outside the edge of the merry-go-round and step on it with negligible speed.What is the angular speed of the merry-go-round right after the two people have stepped on?

• A) 0.20 rad/s
• B) 0.40 rad/s
• C) 0.60 rad/s
• D) 0.80 rad/s
• E) 0.67 rad/s

Learn the phases of business cycles and their characteristics.

Distinguish between endogenous and exogenous theories of business cycles.

Analyze the accuracy of unemployment statistics and factors affecting these measurements.

Comprehend the relationship between economic indicators and forecasting tools for predicting economic conditions.

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Definitions:

Generalization

Responding in the same manner to similar stimuli.

Conditioned Stimulus

A previously neutral stimulus that, after becoming associated with the unconditioned stimulus, eventually comes to trigger a conditioned response.

Parietal Lobe

A region of the brain associated with processing sensory information and spatial orientation.

Central Hippocampus

Often simply referred to as the hippocampus, a major component of the brain that plays critical roles in the consolidation of information from short-term to long-term memory and in spatial memory that enables navigation.