The Supernova Generated by the Explosion of a High Mass

question 51

Multiple Choice

The supernova generated by the explosion of a high mass star fades slowly because of energy generated by ____.

• A) magnetic fields around the neutron star
• B) disintegration of iron in the core of the star
• C) radioactive decay of nickel formed in the expanding shell of the supernova
• D) fusion of the remaining hydrogen in the star
• E) matter-antimatter disintegration around the collapsed core

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Definitions:

Par Value

A nominal value assigned to a security or stock, often used to calculate dividends or interest.

Interest

The cost of borrowing money or the compensation paid for the use of money, usually expressed as an annual percentage rate.

Premium

The amount paid for an insurance policy, or the amount by which a bond or stock sells above its par value.

Par Value

The nominal or face value of a stock or bond as stated by the issuing company, which may differ from its market value.