A Mass of 3

question 11

Multiple Choice

A mass of 3.0 kg is subject to a force F(x) = 8.0 N - (4.0 N/m) x. The potential energy of the mass is zero at x = 0. What is the potential energy of the mass at x = 2.0 m?

• A)4.0 J
• B)0.0 J
• C)8.0 J
• D)-4.0J
• E)-8.0 J

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Definitions:

Cognitive Development

The process by which individuals acquire and develop the ability to think, understand, and reason over time.

Social Referencing

A baby’s adjustment of its reactions to objects or events based on feedback provided by a caregiver. For example, a baby may look at a caregiver’s facial expression before approaching a new toy.

Intergenerational Transmission

When parents repeat with their children the patterns of trauma, rejection, and maltreatment that they experienced as children from their own parents.

Social Referencing

This is the process by which people look to others in an environment to get cues on how to understand or react to uncertain situations or events.