A 20-Kg Block on a Horizontal Surface Is Attached to a Light

question 59

Multiple Choice

A 20-kg block on a horizontal surface is attached to a light spring (force constant = 8.0 kN/m) .The block is pulled 10 cm to the right from its equilibrium position and released from rest.When the block has moved 2.0 cm toward its equilibrium position,its kinetic energy is 13 J.How much work is done by the frictional force on the block as it moves the 2.0 cm?

• A)-2.5 J
• B)-1.4 J
• C)-3.0 J
• D)-1.9 J
• E)-14 J

Grasp the consequences of virtual distance on communication effectiveness.

Acknowledge the impact of first impressions and reputations in virtual settings.

Understand the impact of social norms on emotional expression in computer-mediated communication.

Identify the effects of absence of face-to-face interaction on team dynamics in a virtual environment.

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Definitions:

Transportation Model

A mathematical model used to plan and optimize the transportation of goods between various locations while minimizing costs.

Degenerate

Refers to a decline in physical, moral, or cultural qualities, often implying a deterioration from a former state.

Sources

Origins or points of procurement for materials, information, or inputs required for the production or operation process.

Destinations

The end points or locations to which goods, services, or information are sent or directed.