Write a paragraph describing the relationships among our solar system, the Milky Way, the Local Group, and the Virgo Supercluster.

Describe two celestial bodies that may form in the final stages of the life cycle of a star that is more massive than the Sun.

Which unit would be most appropriate for measuring each of the following distances? Choose between kilometers, AU, and light years. (a) the distance from the Milky Way to the Canis Major Dwarf Galaxy, (b) the distance from the Sun to Charon, one of Pluto's moons, (c) the distance from Earth's surface to the International Space Station.

If Polaris is 400 ly from Earth, what its distance from Earth in kilometers?

Copy each of the following statements into your notebook. FiII in the blanks with a word or phrase that correctly completes the sentence. Stars are _________ objects, which means that they produce and emit light.

Evaluate each expression for p=-4, q=8, and r=-10. $-p^{2}-2 q+r$

Explain the current theory of what a quasar is and where quasars can be found.

Liza’s predicts sales of $40,000 for May and$52,000 for June. Assume 60% of Liza’s sales are for cash. The remaining 40% are credit sales; credit customers pay in the month following the sale. Compute the budgeted cash receipts for June.

In what sense can a variable cost be considered constant?

A certain molecule has f degrees of freedom. Show that an ideal gas consisting of such molecules has the following properties: (a) its total internal energy is fnRT/2, (b) its molar specific heat at constant volume is fR/2, (c) its molar specific heat at constant pressure is (f + 2)R/2, and (d) its specific heat ratio is

$$\gamma=C_{P} / C_{V}=(f+2) / f.$$

A solution is prepared by mixing 25 mL pentane $(\mathrm{C}_{5} \mathrm{H}_{12}, d= 0.63\ \mathrm{g} / \mathrm{cm}^{3})$ with 45 mL hexane $(\mathrm{C}_{6} \mathrm{H}_{14}, d=0.66\ \mathrm{g} / \mathrm{cm}^{3}).$ Assuming that the volumes add on mixing, calculate the mass percent, mole fraction, molality, and molarity of the pentane.

Miami Solar manufactures solar panels for industrial use. The company budgets production of 5,000 units (solar panels) in July and 5,300 units in August. Each unit requires 3 pounds of direct materials, which cost $6 per pound. The company’s policy is to maintain direct materials inventory equal to 30% of the next month’s direct materials requirement. As of June 30, the company has 4,500 pounds of direct materials in inventory, which complies with the policy. Prepare a direct materials budget for July.

Consider the following mathematical expressions. $\left[\mathrm{OH}^{-}\right]=2[\mathrm{B}]_{0}$ For each expression, give three solutions where the mathematical expression would give a good approximation for the $\left[\mathrm{H}^{+}\right]$ or $\left[\mathrm{OH}^{-}\right]. [\mathrm{HA}]_{0}$ and $[\mathrm{B}]_{0}$ represent initial concentrations of an acid or a base.

Trio Company reports the following information for the current year, which is its first year of operations.

$$\begin{matrix} \text{Direct materials} \ldots\ldots\ldots & \text{\$15 per unit}\\ \text{Direct labor}\ldots\ldots\ldots & \text{\$16 per unit}\\ \text{Overhead costs for the year}\\ \text{Variable overhead}\ldots\ldots\ldots & \text{\$ 80,000 per year}\\ \text{Fixed overhead}\ldots\ldots\ldots & \text{\$160,000 per year}\\ \text{Units produced this year}\ldots\ldots\ldots & \text{20,000 units}\\ \text{Units sold this year}\ldots\ldots\ldots & \text{14,000 units}\\ \text{Ending finished goods inventory in units}\ldots\ldots\ldots & \text{6,000 units}\\ \end{matrix}$$

1. Compute the product cost per unit using absorption costing. 2. Determine the cost of ending finished goods inventory using absorption costing. 3. Determine the cost of goods sold using absorption costing.