Numerade

Questions asked

BEST MATCH

2. (25 pts) For an electron in an infinite potential well, there is a probability amplitude $\Psi(x,t) = \Psi_n(x)exp(-jE_nt/\hbar)$ for each energy level and $\Psi_n(x) = (2/L)^{0.5} sin(n \pi x/L)$. (Note: $\hbar$ is h/2π.) The total probability amplitude is given by $\Psi(x,t) = \Psi_1(x) + \Psi_2(x) + \Psi_3(x) ...... + \Psi_n(x)$ To see how probabilities change with time, assume that the probability amplitude for the electron to be in the n =1 state is 0, the n = 4 state is $2^{-0.5}$ and the probability amplitude for the electron to be in the n = 7 state is $2^{-0.5}$. a) Why can we assume that the probability amplitudes for all other states is 0? b) Write down the integral expression that corresponds to the probability that the electron will be found on the left hand side of the infinite potential well.

View Answer

BEST MATCH

Suppose 21.4g of sodium bromide is dissolved in 300.mL of a 0.30 M aqueous solution of silver nitrate. Calculate the final molarity of bromide anion in the solution. You can assume the volume of the solution doesn't change when the sodium bromide is dissolved in it. Be sure your answer has the correct number of significant digits. M

View Answer

BEST MATCH

The accountant for a subunit of Bellamy Sports Company went on vacation before completing the subunit’s monthly responsibility report. This is as far as she got: Subunit X Revenue by Product Actual Results Flexible Budget Variance Flexible Budget Sales Volume Variance Static Budget Downhill – RI $326,000 (a) (b) $19,000 F $301,000 Downhill – RII 154,000 (c) $164,000 (d) 148,000 Cross-EXI 280,000 $1,000 U 281,000 (e) 297,000 Cross-EXII 254,000 (f) 249,000 16,500 U 265,500 Snow-LXI 424,000 2,000 F (g) (h) 402,000 Total $1,438,000 (i) (j) (k) $1,413,500 Requirements 1. Complete the responsibility report for this subunit. 2. Based on the data presented, what type of responsibility center is this subunit? 3. Which items should be investigated if part of management’s decision criteria is to investigate all variances exceeding $10,000?

View Answer

BEST MATCH

What is it called when we create random mutants to identify genes

View Answer

BEST MATCH

After the tax season ends, some accountants lose their jobs. They are considered _____________ unemployed. ? cyclically ? seasonally ? frictionally ? structurally

View Answer

BEST MATCH

The legal rule, "Evidence which is not relevant is not admissible," expresses a conditional relationship. True or false?

View Answer

BEST MATCH

Use the information in the following table for calendar year 2018 to prepare an income statement for this particular fast food chain. Amounts shown are in millions. Fill in the remaining amounts below. All amounts are given in millions (enter all values as integers). Revenue $ Revenue from company restaurants $16,502 Revenue from company 16,502 restaurants Revenue from franchised restaurants 6,958 Revenue from franchised 6,958 restaurants Cost of operating company-owned 13,647 restaurants Operating expenses Income taxes 1,302 Cost of operating company 13,647 Interest expense 544 restaurants General and administrative cost 2,323 Interest expense 544 Cost of restaurant leases 1,233 General and administrative 2,323 cost Cost of restaurant leases 1,233 Total operating expenses Operating income Income before income taxes Income taxes 1,302 Net income (accounting profit)

View Answer

BEST MATCH

Consider the following piecewise-defined function. $f(x) = \begin{cases} x - 5 & \text{if } x < 3\\ -3x - 6 & \text{if } x \ge 3 \end{cases}$ Step 3 of 3: Evaluate this function at $x = -1$. Express your answer as an integer or simplified fraction. If the function is undefined at the given value, indicate "Undefined". Answer f(-1) = \text{O Undefined}

View Answer

BEST MATCH

The scholar Ninian Smart has identified seven dimensions (or shared traits) of religions. This is an example of a(n) ______ approach to the definition of religion. substantive functional family resemblance intergalactic

View Answer

BEST MATCH

What is one thing that each of the Finite Methods have in common? The finite divided difference formulas are used to approximate the derivative terms in the differential equation. The differential equation is transformed into a system of algebraic equations. They all are equally capable of representing the solution over a complex shaped geometric domain. Obtaining the solution to a differential equation is always an iterative process.

View Answer

dolores d.