A 3-in.-diameter casting was produced. The times required for the solid-liquid interface to reach different distances beneath the casting surface were measured and are shown in the following table:

This method is specified in the Statement interface, and should be used to execute a SELECT statement.

a. execute

b. executeUpdate

c. executeQuery

d. executeSelect

A light beam coming from an underwater spotlight exits the water at an angle of $56.0^{\circ}$. At what angle of incidence did it hit the air-water interface from below the surface?

In which position-sitting, lying down, or standing-is the blood pressure normally highest? Lowest? Explain why.

Write a statement in which a class named Area implements three interfaces: Square, Triangle, and Rectangle.

Consider the system shown in fig. If a change of $0.7 \mathrm{~kPa}$ in the pressure of air causes the brine-mercury interface in the right column to drop by $5 \mathrm{~mm}$ in the brine level in the right column while the pressure in the brine pipe remains constant, Find the ratio of $A_{2} / A_{1}$.

Define MyPriorityQueue class that extends PriorityQueue to implement the Cloneable interface and implement the clone() method to clone a priority queue.

(Enable Rectangle comparable) Rewrite the Rectangle class in Listing 13.3 to extend GeometricObject and implement the Comparable interface. Override the equals method in the Object class. Two Rectangle objects are equal if their areas are the same. Draw the UML diagram that involves Rectangle , GeometricObject , and Comparable .

Light having a vacuum wavelength of 600 nm, traveling in a glass $\left(n_{g}=1.50\right)$ block, is incident at $45^{\circ}$ on a glass–air interface. It is then totally internally reflected. Determine the distance into the air at which the amplitude of the evanescent wave has dropped to a value of 1/e of its maximum value at the interface.

When you write an action listener class for a JButton component, it must:

• a. have a method named buttonClicked
• b. implement the ActionLIstener interface
• c. have a method named actionPerformed which must take an argument of the ActionEvent type
• d. both b and c

A car mechanic “walks” two wheel/tire units across a horizontal floor. He walks with constant speed v and keeps the tires in the configuration with the same position relative to his body. If there is no slipping at any interface, determine (a) the angular velocity of the lower tire, (b) the angular velocity of the upper tire, and (c) the velocities of points A, B, C, and D. The radius of both tires is r.

It is found that $\mathbf{E}=60 \mathbf{a}_x+20 \mathbf{a}_y-30 \mathbf{a}_z \mathrm{mV} / \mathrm{m}$ at a particular point on the interface between air and a conducting surface. Find $\mathbf{D}$ and $\rho_S$ at that point.

A $2\ \text{in.}$ $\times 8$ in. $\times 10$ in. iron casting is produced and, after cooling to room temperature, is found to weigh $43.9 \mathrm{lb}$. Determine (a) the percent of shrinkage that must have occurred during solidification and (b) the number of shrinkage pores in the casting if all of the shrinkage occurs as pores with a diameter of $0.05$ in.

Consider a new kind of queue that allows only a single copy of an object in the queue. If an object is added to the queue, but it is already there, leave the queue unchanged. This queue has another operation moveToBack that takes an object in the queue and moves it to the back. If an object is not in the queue, the operation adds it at the back of the queue.

Create an interface NoDuplicatesQueueInterface that extends QueueInterface. Then write an array-based implementation of NoDuplicatesQueueInterface. Finally, write a program that adequately demonstrates your new class.