Consider the transition between two forms of solid tin, $\operatorname{Sn}(s$, gray $) \rightarrow \operatorname{Sn}(s$, white $)$. The two phases are in equilibrium at $1 \mathrm{bar}$ and $18^{\circ} \mathrm{C}$. The densities for gray and white tin are $5750$ and $7280 \mathrm{~kg} \mathrm{~m}^{-3}$, respectively, and the molar entropies for gray and white tin are $44.14$ and $51.18 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}$, respectively. Calculate the temperature at which the two phases are in equilibrium at $350 . \mathrm{bar}$.

In which of the following two-level circuit forms can an arbitrary switching function be realized? Verify your answers. (Assume the inputs are available in both complemented and uncomplemented form.) (a) NOR-AND (b) NOR-OR (c) NOR-NAND (d) NOR-XOR (e) NAND-AND (f ) NAND-OR (g) NAND-NOR (h) NAND-XOR

For this item, some examples of irrational numbers are $\sqrt{2}$ or $\pi$. Look at the screen shots in the My Notes sections of $\sqrt{2}$ and $\pi$, where $\sqrt{2}$ is 1.414213562 and $\pi$ is 3.141592654

What is the difference between the decimal forms of rational numbers and the decimal forms of irrational numbers?

Among the four alkanes, ethane, propane, butane, and pentane, which is capable of existing in isomeric forms?

State whether the following statements are true or false, and explain why. If a statement is false, state the true change.

A high school reports that its students' SAT scores were down by $20 \%$ for one year. The next year, however, SAT scores rose by $30 \%$. The high school principal announces, "Overall, test scores have improved by $10 \%$ over the past two years."

State the claim mathematically. Write the null and alternative hypotheses. Identify which is the claim.

A research organization reports that 33% of the residents in Ann Arbor, Michigan are college students.

Net income for the year for Carrie, Inc. was $750,000, but the statement of cash flows reports that net cash provided by operating activities was$860,000. What might account for the difference?

State whether the following statement is true or false, and explain why. If a statement is false, state the true change. A high school reports that its students' SAT scores were down by $10 \%$ in one year. The next year, however, SAT scores rose by $20 \%$. The high school principal announces, "Overall, test scores have improved by $10 \%$ over the past two years."

An experimenter reports that a certain strain of bacteria grows at a rate proportional to the square of the size of the population. Set up a differential equation that describes the growth of the population. Sketch a solution.

What are the singular masculine, plural masculine, singular feminine and plural feminine forms of the word aquel?

Multiple choice is the format used for most national certification examinations. Choose the correct answer to the statement or question. (LO 3.2, 3.3, 3.4, 3.7, 3.8)

What forms the gliding surface where two bones meet to form a joint? a. cartilage b. blood vessels c. collagen d. ligaments e. lymph

Given item below contains an error in sentence structure, subject-verb agreement, pronoun, antecedent agreement, placement of a modifier, verb forms, pronoun forms, or formal, standard English Revise given sentence to correct any errors.
Each of the gymnasts performed their routine for the coach.

Hydrolysis of the compound $B_5H_9$ forms boric acid , $H_3BO_3.$ Fusion of boric acid with sodium oxide forms a borate salt, $Na_2B_4O_7$. Without writing complete equations, find the mass (in grams) of $B_5H_9$ requ ired to form 151 g of the borate salt by this reaction sequence.

The exponential distribution is $f(x ; \lambda)=\lambda e^{-\lambda x} \text { and } E(X)=\lambda^{-1}$. The cumulative distribution function is $F(x)=P(X \leq x)=1-e^{-\lambda x}$. Three observations are made by an instrument that reports $x_{1}=5$ and $x_{2}=3$, but $x_{3}$ is too large for the instrument to measure and it reports only that $x_{3}>10$. (The largest value the instrument can measure is 10.0.) a. What is the likelihood function? b. What is the mle of $\lambda$?