The Crab Pulsar Is a Neutron Star, Rotating with a Period

question 1

Multiple Choice

The Crab Pulsar is a neutron star, rotating with a period of about 33.085 ms. It is estimated to have an equatorial radius of 15 km, about average for a neutron star. The pulsar is slowing in its rotation so that it is expected to come to rest 9.5 × 10¹⁰ s in the future. Assuming it is slowing with a constant angular acceleration, what is the tangential acceleration of an object on the neutron star's equator?

• A) 3.0 × 10⁻⁵ m/s²
• B) 2.0 × 10⁻⁹ m/s²
• C) 3.2 × 10⁻¹⁰ m/s²
• D) 7.6 × 10⁻⁷ m/s²
• E) 4.8 × 10⁻⁶ m/s²

Explore the factors contributing to growing income inequality in the United States.

Know the demographics of poverty within the United States, including who is most affected.

Describe how time affects income inequality and understand social insurance programs in the United States.

Understand the difference between income and wealth and how wealth contributes to income inequality.

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Definitions:

Default Rate

The proportion of loans or debt instruments that are not repaid as agreed, leading to default, within a specific period.

Monthly Interest Rate

The Monthly Interest Rate is the interest rate charged or earned per month on a loan, savings account, or investment, expressed as a percentage of the principal.

NPV

Net Present Value; a financial metric that evaluates the profitability of an investment or project by calculating the difference between the present value of cash inflows and outflows over a period of time.

Chance Of Default

The probability that a borrower will be unable to meet their obligation to repay a loan or meet contractual obligations.