Numerade

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783 pts 500 Question 14 of 25 > Give the name of the element with the electronic configuration $1s^22s^22p^6$. element:

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8. Two particles of masses $m_1$ and $m_2$ move under their mutual gravitational attraction. (a) Show from first principles that the quantity $$ \frac{1}{2} \dot{\mathbf{r}} \cdot \dot{\mathbf{r}} - \frac{GM}{r} $$ is constant, where $\mathbf{r}$ is the position vector of one particle relative to the other and $M = m_1 + m_2$. (b) The particles are released from rest a long way apart, and fall towards each other. Show that the position of their centre of gravity is fixed, and that when they are a distance $r$ apart their relative speed is $\sqrt{2GM/r}$. (c) (*) When the particles are a distance $a$ apart, they are given equal and opposite impulses (change of momentum) each of magnitude $I$, and each perpendicular to the direction of motion. Show that subsequently $r^2 \omega = aI/\mu$, where $\omega$ is the angular speed of either particle relative to the centre of mass and $\mu$ is the reduced mass of the system. (d) (*) Show further that the minimum separation, $d$, of the two particles in the subsequent motion satisfies $$ (a^2 - d^2) I^2 = 2GM\mu^2 d $$

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The electric field of a point charge has an inverse ______ behavior. A $r^{1/2}$ B $r$ C $r^2$ D $r^3$

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Normally in humans, all the sons of a female homozygous for a sex-linked recessive gene will inherit that trait. O True O False

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A company's marginal cost function is $C'(x) = 0.46x - 36\sqrt{x} + 65$ in dollars per unit where $x$ is the number of units produced. If it costs $18,400 to produce 100 units, find the cost function.

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What are the properties of solids? Check all that apply. may be crystalline or amorphous indefinite shape equal densities in comparison to gases high densities in comparison to gases definite shape indefinite volume definite volume low densities in comparison to gases

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Question number 11. Suppose that $f(x) = \frac{x + 2}{x - 1}$ is differentiable and has an inverse for $x > 1$ and $f(3) = \frac{5}{2}$. Find $(f^{-1})'(\frac{5}{2})$. $-\frac{2}{3}$ $\frac{4}{3}$ $-\frac{8}{3}$ $-\frac{4}{3}$ $\frac{8}{3}$

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In plant cells, a central vacuole Multiple Choice produces mRNA produces protein. stores genetic Information. produces energy from food. degrades molecules and organelles and maintains water pressure.

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Match the confidence level with the confidence interval for $\mu$. 1. $\bar{x} \pm 2.575 \left(\frac{\sigma}{\sqrt{n}}\right)$ 2. $\bar{x} \pm 1.96 \left(\frac{\sigma}{\sqrt{n}}\right)$ 3. $\bar{x} \pm 1.645 \left(\frac{\sigma}{\sqrt{n}}\right)$ A. 99% B. 95% C. 90%

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Basket Corner UNADJUSTED TRIAL BALANCE December 31, 20-- ACCOUNT TITLE DEBIT CREDIT 1 Cash 24,000.00 2 Accounts Receivable 16,800.00 3 Merchandise Inventory 90,000.00 4 Estimated Returns Inventory 3,840.00 5 Supplies 9,600.00 6 Prepaid Insurance 6,480.00 7 Land 156,000.00 8 Building 300,000.00 9 Accumulated Depreciation-Building 120,000.00 10 Store Equipment 120,000.00 11 Accumulated Depreciation-Store Equipment 48,000.00 12 Accounts Payable 11,520.00 13 Customer Refunds Payable 4,200.00 14 Wages Payable 0.00 15 Sales Tax Payable 7,080.00 16 Unearned Rent Revenue 10,680.00 17 L. Palermo, Capital 341,172.00 18 L. Palermo, Drawing 31,200.00 19 Income Summary 0.00 20 Sales 630,168.00 21 Sales Returns and Allowances 17,400.00 22 Rent Revenue 0.00 23 Purchases 150,000.00 24 Purchases Returns and Allowances 1,680.00 25 Purchases Discounts 2,160.00 26 Freight-In 2,520.00 27 Wages Expense 150,000.00 28 Advertising Expense 15,600.00 29 Supplies Expense 0.00 30 Phone Expense 1,620.00 31 Utilities Expense 9,600.00 32 Insurance Expense 0.00 33 Depreciation Expense-Building 0.00 34 Depreciation Expense-Store Equipment 0.00 35 Rent Expense 72,000.00 36 Totals 1,176,660.00 1,176,660.00 Year-end adjustment information is provided below. (a, b) A physical count shows that merchandise inventory costing $102,000 is on hand as of December 31, 20--. (c, d, e) Palermo estimates that customers will be granted $6,840 in refunds of this yearâ€™s sales next year and the merchandise expected to be returned will have a cost of $5,160. (f) Supplies remaining at the end of the year, $3,960. (g) Unexpired insurance on December 31, $4,560. (h) Depreciation expense on the building for 20--, $15,000. (i) Depreciation expense on the store equipment for 20--, $6,000. (j) Unearned rent revenue as of December 31, $5,400. (k) Wages earned but not paid as of December 31, $4,200. Required: 1. Complete the Adjustments columns. 2. Complete the spreadsheet. 3. Enter the adjustments in a general journal.

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brandon p.