The dipole moment of carbon monoxide, $\mathrm{CO}$, is very small ( $0.12 \mathrm{D}$ ) even though the electronegativity difference between oxygen and carbon is rather large. Can you give an explanation of this from the Lewis structure? (Hint: think about possible resonance structures.)

Express the area of the given surface as an iterated double integral, and then find the surface area.

The portion of the cone z squared = 4x squared + 4y squared that is above the region in the first quadrant bounded by the line y = x and the parabola y = x squared.

Analyze the following case and then determine if it would be counted in the calculation of U.S. GDP as $\bold{consumption\ spending}$ (C), $\bold{investment\ spending}$ (I), $\bold{government\ spending}$ (G), $\bold{exports}$ (X), or $\bold{imports}$ (M). You enjoy a makeover at the local spa.

Refer to the Official Guidelines and fill in the blanks according to the Conventions and General Coding Guidelines Section I, subsections A and B.
The Alphabetic Index consists of the following parts: the Index of ______ and Injury, the Index of __________ of Injury, the table of _________ , and the table of ______ and Chemicals.

How are past performance and industry norms useful in evaluating a company’s performance? What are their limitations?

Make an order-of-magnitude estimate of the quantity. -The maximum torque caused by the force you exert on a diving board when you dive into a pool.

(a) Break down the following resonance interaction into four separate resonance structures (counting the two below), each connected to the next by one curved arrow. (b) Draw a hybrid structure corresponding to the ion in part (a) containing dashed lines and partial charges. (Hint: Let your answer to part (a) tell you where to place the partial charges.)

Plot the function. Identify the local minimums and local maximums.

$$f(x)=-x^3+4 x^2-3$$

One liter of pure gold weighs $42.5 \mathrm{lb}$. If you discovered $1.0 \mathrm{ft}^3$ of pure gold, how much would it weigh in pounds?

A gear train is shown in Figure P10.52. The gears have the following properties: $N_2=15$ teeth; $N_3=90$ teeth and $P_d=16 ; N_4=15$ teeth; $N_5=75$ teeth; $N_6=75$ teeth and $P_d=12 ; N_7=15$ teeth; and $N_8=60$ teeth and $P_d=8$. Determine the velocity of gear 8 as gear 2 drives at $3600 \mathrm{rpm}$ clockwise. Also, determine the center distance between gears 2 and 8.

Prove that every subgroup of index 2 is a normal subgroup, and show by example that a subgroup of index 3 need not be normal.

Make an order-of-magnitude estimate of the quantity. -The gravitational flux that enters the roof of a typical one-story house due to Earth’s gravitational field.

The rate of oxygen consumption. in microliters per gram per hour, for Colorado potato beetles increases with temperature. See the table below.

(a) Make a scatter plot of this data.

(b) Draw an estimated regression line by eye.

(c) Use a calculator or computer to find the equation of the regression line. Round constants in the equation to the nearest integer.

(d) Interpret the slope and each intercept of the regression equation.

(e) Interpret the correlation between temperature and oxygen rate.

If f(x, y) has two local maxima, then f must have a local minimum.