A Neutron Star Has Approximately the Same Density as Nuclear

question 33

Multiple Choice

A neutron star has approximately the same density as nuclear material. A typical neutron star has a radius of 8.0 km. Using the relationship r = (1.2 fm) A^1/3 together with the mass of a neutron, 1.67 × 10⁻²⁷kg, estimate the mass of a neutron star.

• A) 0.65 × 10³⁰ kg
• B) 1.5 × 10³⁰ kg
• C) 0.16 × 10³⁰ kg
• D) 0.49 × 10³⁰ kg

---

Definitions:

Object Reversal Task

A cognitive task used to study memory and learning, where an individual must identify an object that has changed locations or attributes.

Concurrent Discrimination Task

A cognitive task in which subjects must distinguish between two or more stimuli that are presented simultaneously.

Amblyopia

Condition in which vision in one eye is reduced as a result of disuse; usually caused by a failure of the two eyes to look in the same direction.

Critical Period

A specific time in development when the presence or absence of certain experiences has a long-lasting influence on the brain and future behavior.