You Observe a Star Cluster with a Main- Sequence Turn-

question 109

Multiple Choice

You observe a star cluster with a main- sequence turn- off point at spectral type G2 (the same spectral type as the Sun) . What is the age of this star cluster?

• A)10,000 years
• B)100 billion years
• C)4)6 billion years
• D)10 billion years
• E)You also need to know the luminosity class of the turn- off point to determine the age.

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Definitions:

Expected NPV

The anticipated net present value, which estimates the present value of future cash flows minus initial investments, accounting for risk and uncertainty.

Project

A scheduled collection of connected activities designed to be completed within a specific timeframe and under predetermined budget and restrictions.

Discount Rate

The interest rate used to determine the present value of future cash flows in discounted cash flow analysis.

Scrap Value

The estimated worth of a tangible asset at the end of its useful life, often related to material goods that can be recycled or sold for parts.