Briefly describe how a star forms. Explain why stars form only in molecular clouds, the coldest, densest parts of the interstellar medium.

Which of the following statements about globular clusters is false?

Each of the following describes an “Atom 1” and an “Atom 2.” In which case are the two atoms isotopes of each other?

Cluster ages can be determined from

This H-R diagram shows the life track of a 1 MSun star from the time it first becomes a main-sequence star. Which numbered point represents the star when it has both hydrogen-burning and helium-burning shells around an inert carbon core?

In the figure, assume the woman in each case uses her prism to look at a spectrum of light coming from the object(s) shown. In which case will she see a continuous rainbow of thermal radiation?

Suppose you measure the parallax angle for a particular star to be 0.1 arcsecond. The distance to this star is 

Johnson Marine has the following costs and expected sales for the coming year. Johnson is considering a number of different methods to determine the price of its product.   Total Costs Variable Manufacturing $ 2,350,000 Variable Selling and Administrative 750,000 Plant-level Fixed Overhead 1,200,000 Fixed Selling and Administrative 600,000 Batch-level Fixed Overhead 200,000 Total Investment in Product Line 10,000,000 Expected Sales (units) 20,000 If Johnson determines price using a desired gross margin percentage of 50%, the price is:

Johnson Marine has the following costs and expected sales for the coming year. Johnson is considering a number of different methods to determine the price of its product.   Total Costs Variable Manufacturing $ 2,350,000 Variable Selling and Administrative 750,000 Plant-level Fixed Overhead 1,200,000 Fixed Selling and Administrative 600,000 Batch-level Fixed Overhead 200,000 Total Investment in Product Line 10,000,000 Expected Sales (units) 20,000 If Johnson determines price using a desired return on life cycle costs of 30%, the price is:

Johnson Marine has the following costs and expected sales for the coming year. Johnson is considering a number of different methods to determine the price of its product.   Total Costs Variable Manufacturing $ 2,350,000 Variable Selling and Administrative 750,000 Plant-level Fixed Overhead 1,200,000 Fixed Selling and Administrative 600,000 Batch-level Fixed Overhead 200,000 Total Investment in Product Line 10,000,000 Expected Sales (units) 20,000 If Johnson determines price using a 40% markup of full manufacturing cost, the price is: