As a 10-Kg Object Moves from Point a to Point B, It

question 25

Multiple Choice

As a 1.0-kg object moves from point A to point B, it is acted upon by a single conservative force which does −40 J of work during this motion. At point A the speed of the particle is 6.0 m/s and the potential energy associated with the force is +50 J. What is the potential energy at point B?

• A) +72 J
• B) +10 J
• C) +90 J
• D) +28 J
• E) +68 J

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Definitions:

Brightness

A perceptual attribute of visual experience by which an area appears to emit more or less light.

Hue

A color or shade, particularly one that indicates the degree to which a stimulus can be described as similar to or different from stimuli that are described as red, green, blue, and yellow.

Iris

The colored part of the eye that controls the size of the pupil and thus the amount of light that enters the eye.

Pupil

The adjustable opening in the center of the eye through which light enters, its size regulated by the iris.