Write the simple subject and the simple predicate in the sentence.

Example: The bright Florida sky turned black.

Answer: sky; turned.

Many animals, afraid of the wind, cowered in their cages.

Explain in your own terms the Mariner's moral (lines 612-617). Does the story indicate that he ought to have added something to his moral conclusion? Explain.

Consider again the model truck example discussed in the section, except that the maximum speed of the wind tunnel is only $50 \mathrm{~m} / \mathrm{s}$. Aerodynamic force data are taken for wind tunnel speeds between $V=20$ and $50 \mathrm{~m} / \mathrm{s}$ - assume the same data for these speeds as those listed in the table. Based on these data alone, can the researchers be confident that they have reached Reynolds number independence?

It has been proposed that uranium be extracted from seawater to fuel nuclear power plants. If the concentration of uranium in seawater is $3.2 \mu \mathrm{g} / \mathrm{L}$, how much seawater must be processed to generate one pound of uranium?

The party who agrees to indemnify another is termed the (a) insurer (b) insured (c) beneficiary

Write C in the blank if the sentence uses commas correctly. _____ The nylon fence, billowing in the wind like a long, taut sail, was a striking sight as it snaked across the rolling countryside.

An inclined plane, fixed to the inside of an elevator, makes a $38^{\circ}$ angle with the floor. A mass $m$ slides on the plane without friction. What is its acceleration relative to the plane if the elevator falls freely ?

Use Appendix B.5 to find the value of t when the sample size is 12 and the level of confidence is 90%.

In the preceding problem we saw that a person's reaction time is generally not quick enough to allow the person to catch a $1 bill dropped between the fingers. The 16 cm length of the bill passes through a student's fingers before she can grab it if she has a typical 0.25 s reaction time. How long would a bill need to be for her to have a good chance of catching it?

In the sentence below, underline the correct verb form in parentheses. Example 1. The temperature began to ($\underline{\text{rise}}$, raise) as soon as the sun appeared above the horizon.

Cynthia will (rise, raise) the blinds in your office to give your plants some light

Set up the initial tableau for each maximum problem. Maximize $\qquad P= x_1+ 2x_2 +x_3+4x_4$ subject to constraints

$$\left\{\begin{array}{lllll} x_1 & +3x_2& +x_3 & +2x_4 \leq 20 \\ 4x_1 & +x_2& +x_3 & +6x_4 \leq 80 \\ x_{1}\geq 0, &x_2\geq 0, &x_3\geq 0, &x_4\geq 0 \end{array}\right.$$

The homogeneous rectangular block of mass m rests on the inclined plane which is hinged about a horizontal axis through O. If the coefficient of static friction between the block and the plane is $\mu$, specify the conditions which determine whether the block tips before it slips or slips before it tips as the angle $\theta$ is gradually increased.

For the Continental Long Distance subscriber in Problem 18, what is the opportunity cost of making an additional 20 min of calls if he currently makes

a. 40 min of calls each month?

b. 140 min of calls each month?

Use any problem-solving strategy to solve each problem. Suppose stamps for postcards cost $0.28 and stamps for first-class letters cost$0.44. Diego wanted to send postcards and letters to 10 friends. If he had $3.60 for stamps and spends all of it, how many postcards and how many letters could he send?