How does $14 \atop 6$C differ from $12 \atop 6$C? What is the atomic number of each carbon atom? The atomic weight?

What is the difference between passive transport and facilitated transport?

Which of the following is a principle to interpret relative ages?

A. The youngest rock is on the bottom.

B. A geologic feature is older than any rock or feature it crosscuts.

C. A younger rock can include pieces of an older rock.

D. An older magma can bake or metamorphose younger rocks.

Mutant versions of genes that are normally involved in promoting the cell cycle are known as:

A) tumor suppressors.

B) proto-oncogenes.

C) oncogenes.

D) malignant genes.

E) attenuators.

Find the coefficient of $y^5$ in the binomial expansion of $(3+y)^{9}$.

For each of the following functions: i. find $y = f(x),$ the result of a translation

$$\left[ \begin{array}{l}{1} \\ {-2}\end{array}\right].$$

ii. Sketch the original function and its translated function on the same set of axes. iii. Clearly state any asymptotes of each function. iv. State the domain and range of each function. a. $y=2^{x}$ b. $y=\log _{4} x$

The stresses on horizontal and vertical planes at a point on the outside surface of a solid circular shaft subjected to an axial load $P$ and a torque $T$ are shown in figure. The normal stress on plane $A-A$ at this point is $8000 \mathrm{~psi}$ T. Find (a) The magnitude of the shearing stresses $\tau_h$ and $\tau_v$. (b) The magnitude and direction of the shearing stress on the inclined plane $A-A$.

Differentiate between oxygen transport and carbon dioxide transport in the bloodstream.

All stories are built around conflict. Sum up the basic problem facing Warren, Mary, and Silas, as it unfolds in the dialogue between Mary and Warren. Some might say that Mary sees the hired man's situation in an emotional sense and Warren views it in a business sense. Do you agree? Explain.

Find the coefficient of $y^4$ in the binomial expansion of : $(3+y)^{7}$.

If the coefficient of static friction between a car's tires and the pavement is $0.65$, calculate the minimum torque that must be applied to the 66-cm-diameter tire of a $1250\text{-kg}$ automobile in order to "lay rubber" (make the wheels spin, slipping as the car accelerates). Assume each wheel supports an equal share of the weight.

The equation of line $\ell$ is $3 x-5 y=5$, and the equation of line $m$ is $5 x-3 y=3$. Which statement about the two lines is true?

A Lines $\ell$ and $m$ are perpendicular.

B Lines $\ell$ and $m$ are parallel.

C Lines $\ell$ and $m$ have the same $x$-intercept.

D Lines $\ell$ and $m$ have the same $y$-intercept.

Strontium (Sr) has an FCC crystal structure, an atomic radius of 0.215 nm, and an atomic weight of 87.62 g/mol. Calculate the theoretical density for Sr.

Effect of an Ionophore on Active Transport Consider the leucine transporter described in Problem 21. Would $V_{\max }$ and/or $K_{\mathrm{t}}$ change if you added a $\mathrm{Na}^{+}$ionophore to the assay solution containing $\mathrm{Na}^{+}$? Explain.