A Child's Top Is Spinning at a Rate of 7

question 19

Multiple Choice

A child's top is spinning at a rate of 7.00 rev/s.It takes 30.0 seconds for the top to slow to a rate of 2.00 rev/s.Assuming a constant angular acceleration,what is the magnitude of the angular acceleration of the top?

• A)0.070 rad/s²
• B)0.167 rad/s²
• C)0.233 rad/s²
• D)1.05 rad/s²
• E)1.47 rad/s²

---

Definitions:

Top-Down Processing

A cognitive process that starts with the brain’s higher-level functions before receiving sensory input.

Feature Detectors

Brain cells that recognize particular aspects of a stimulus, including its form, orientation, or motion.

Nerve Cells

Also known as neurons, these are the basic building blocks of the nervous system, responsible for transmitting information throughout the body via electrical and chemical signals.

Hubel And Wiesel

Hubel and Wiesel were neurophysiologists known for their pioneering research on the visual cortex, revealing how sensory processing and visual perception mechanisms function in the brain.