A radio transmitter emits a time-average power of $5.0 \mathrm{~kW}$ in the form of a radio wave with uniform intensity in all directions. What are the amplitudes of the electric and magnetic fields of this radio wave at a distance of $10 \mathrm{~km}$ from the transmitter?

Many drugs decompose in blood by a first-order process.
(e) Calculate $E_a$ for decomposition of the antibiotic in part (d).

MBank hired El Paso Recovery Services to repossess the Pontiac Trans-Am owned by Sanchez because she was late on her loan payments. The repossessor went to Sanchez’s home with a tow truck and tried to hook the car to the tow truck. Sanchez, who was cutting her grass at the time, asked what they were doing. The repossessors didn’t respond. Sanchez then locked herself in the car to try to stall them until the police arrived. The repossessor finally towed the Trans Am on a high-speed trip, with Sanchez inside, to a repossession lot where they left the car in a fenced and locked yard. Police later rescued Sanchez. She sued MBank. Will she recover? (MBank of El Paso v. Sanchez, 836 S.W.2d 151, Tex.)

Muscle physiologists study the accumulation of lactic acid [CH3CH(OH)COOH] during exercise. Food chemists study its occurrence in sour milk, beer, wine, and fruit. Industrial microbiologists study its formation by various bacterial species from carbohydrates. A biochemist prepares a lactic acid-lacte buffer by mixing 225 mL of 0.85 M lactic acid (Ka = $1.38 \times 10 - 4$) with 435 mL of 0.68 M sodium lactate. What is the buffer pH?

Implement the remove() method in lines $150–152$?.

Ammonia In a piston/cylinder arrangement is at 700 kPa and 80$^{\circ} \mathrm{C}$. It is now cooled at constant pressure to saturated vapor (state 2), at which point the piston is locked with a pin. The cooling continues to −10$^{\circ} \mathrm{C}$ (state 3). Show the processes 1 to 2 and 2 to 3 on both a P–v and a T–v diagram.

The region between the curve $y=1 /(2 \sqrt{x})$ and the x-axis from x = 1/4 to x = 4 is revolved about the x-axis to generate a solid.

Find the volume of the solid.

A composite shaft consists of a solid steel ( $G=80$ GPa) core with an outside diameter of $40 \mathrm{~mm}$ covered by a brass ( $G=39\ \mathrm{GPa}$ ) tube with an inside diameter of $40 \mathrm{~mm}$ and a wall thickness of $20 \mathrm{~mm}$, which is in turn covered by an aluminum alloy ( $G=28\ \mathrm{GPa}$ ) sleeve with an inside diameter of $80 \mathrm{~mm}$ and a wall thickness of $10 \mathrm{~mm}$, as shown in given figure. The three materials are bonded so that they act as a unit. Find (a) The maximum shearing stress in each material when the assembly is transmitting a torque of $15\ \mathrm{kN} \cdot \mathrm{m}$. (b) The angle of twist in a $3-\mathrm{m}$ length when the assembly is transmitting a torque of $10 \mathrm{kN} \cdot \mathrm{m}$.

Match the following terms with the definitions.

$$\begin{array}{llll} \text { atresia } & \text { dystocia } & \text { metrormagia } & \text { pyosalpinx } \\ \text { breech } & \text { eclampsio } & \text { oligomenorrhea } & \text { retroversion } \\ \text { choriocarcinoma } & \text { fibroids } & \text { pathogen } & \text { sterility } \\ \text { Down syndrome } & \text { gestation } & \text { primigravida } & \text { septicemia } \\ \text { dyspareunia } & \text { menarche } & \text { primipara } & \text { trichomoniasis } \end{array}$$

benign uterine tumor composed of muscle and fibrous tissue _______.

Which element has three electrons in its 3d sublevel?

What are the wavelength ranges in (a) the AM radio band $(540-1600 \mathrm{kHz})$, and (b) the FM radio band (88.0$108 \mathrm{MHz}$ )?

An axial-flow blower delivers

$$40 ft^3/s$$

of air that enters at 20°C and 1 atm. The flow passage has a 10-in outer radius and an 8-in inner radius. Blade angles are

$$\alpha_1 = 60°$$

and

$$\beta_2 = 70°$$

, and the rotor runs at 1800 r/min. For the first stage compute (a) the head rise and (b) the power required.

Solve the area of the shaded region.

Choose the letter of the best answer. Which of the following correctly describes a solid? A. The particles do not move at all. B. The particles are closely locked in position and can only vibrate in place. C. The particles are free to move about independently, colliding frequently. D. The particles are closely packed but have enough energy to slide past one another.