Two Air Track Carts Move Along an Air Track Towards

question 34

Multiple Choice

Two air track carts move along an air track towards each other.Cart A has a mass of 450 g and moves toward the right with a speed of 0.850 m/s.Cart B has a mass of 300 g and moves toward the left with a speed of 1.12 m/s.What is the total momentum of the two-cart system?

• A)0.047 kg ∙ m/s toward the right
• B)0.719 kg ∙ m/s toward the right
• C)0.719 kg ∙ m/s toward the left
• D)0.750 kg ∙ m/s toward the right
• E)0.750 kg ∙ m/s toward the left

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Definitions:

Wavelengths

The distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.

Trichromatic Theory

The trichromatic theory of color vision posits that the human eye has three types of receptors sensitive to red, green, and blue light, which combine to produce the perception of all colors.

Cones

Photoreceptor cells in the retina of the eye that function best in relatively bright light and enable the perception of color.

Feature Detector Cells

Neurons in the brain that respond to specific characteristics of a visual stimulus, such as angles or movement.