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stephanie poole

stephanie p.

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Problem 18.15 Part A The pendulum consists of a 16-kg uniform disk and a 3-kg uniform slender rod. It is released from rest in the position shown. Suppose that L=2 m. (Figure 1) Determine the magnitude of its angular velocity when it rotates clockwise 90°. Express your answer in radians per second to three significant figures. $\omega$= 3.46 rad/s Incorrect; Try Again; 4 attempts remaining

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Question 13 Given the function $$f(z) = \begin{cases} 2z-10 & z<0 \\ 2z-20 & z\geq 0 \end{cases}$$ Calculate the following values: f(-1) = f(0) = f(2) = Question Help: Message instructor Add Work Check Answer Question 14 Write the domain of the function using interval notation. Example: [2,3) or (-oo,5). Enter -oo for negative infinity and oo for infinity. NOTE: If you do not see an endpoint, assume that the graph continues forever in the same direction. The domain is: Question Help: Message instructor Add Work Check Answer

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Calculate the molarity of a solution made by dissolving 23.4 g of sodium sulfate [Na2 SO4 ] in enough water to make 125 mL of solution. Also, calculate the concentration of sodium ion and sulfate ion in the solution.

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PREPARE A CASH BUDGET FOR 1st QUARTER. ALL INFO NEEDED IS THERE. THANKS IN ADVANCE!! JX A C D F G H Cash Budget for the First Quarter 2022 The Tri Town Restaurant is situated in a local shopping center and serves food of many different cultures. It also caters private functions for companies. The results of operations are as follows: Sales: $480,000 Less cost of sales: $331,200 Gross margin: $148,800 Less selling, general, and administrative expenses: $57,600 Income before taxes: $91,200 Less income taxes: $18,240 Net income: $72,960 Cash receipts: Collections of sales: Quarter 4, 2020 collections: $96,000 Quarter 1, 2021 collections: $441,600 Total cash receipts: $537,600 Additional information: Cash disbursements: 80 percent of sales are collected in the quarter of sale and 20 percent are collected in the quarter following sale. The balance in accounts receivable at the end of 2020 relates to sales in the fourth quarter of 2020. Payment for inventory purchases: Food purchases in the fourth quarter of 2020 are $333,100. The balance in accounts payable at the end of 2020 relates to purchases in the fourth quarter of 2020. Food inventory at the end of 2020 is $16,320. For 2021, the company plans to hold ending inventory equal to 30 percent of the subsequent quarter's cost of sales. Selling, general, and administrative expenses are expected to increase by $11,520 due to increases in advertising and salaries. All other expenses in this category are expected to remain constant. Quarter 4, 2020 payments: $83,275 Quarter 1, 2021 payments: $359,118 Selling and administrative expenses: $64,320 75 percent of inventory purchases are paid in the quarter of purchase and 25 percent are paid in the following quarter. All taxes on income: $20,400 Selling and administrative expense includes $4,800 of depreciation related to fixtures and equipment with a book value (net of accumulated depreciation) of $57,600 at the end of 2020. The tax rate is expected to remain at 20 percent and taxes are paid in the quarter incurred. The cash balance at the end of 2020 is $38,400. Excess of disbursements over receipts: $10,487 Common stock at the end of 2020 is $24,000 and retained earnings is $101,045. Asset accounts are Cash, accounts receivable, inventory, and furniture and fixtures. The only liability account is accounts payable. Owner's equity accounts are common stock and retained earnings. Add: Beginning cash balance: $38,400 Ending cash balance: $48,887

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O is the center of the regular octagon below. Find its area. Round to the nearest tenth if necessary.

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Activity 1: Which is which? Determine whether each of the following is a polynomial expression or not. Give your reasons. not 1. \( 14 x \) 6. \( \pi \) 2. \( 5 x^{3}-4 \sqrt{2 x}+x \) 7. \( 3 x^{\sqrt{3}}+\sqrt{3} x^{2}+9 x-2 \) 3. \( -2014 x \) 8. \( x^{3}+2 x+1 \) 4. \( x^{\frac{3}{4}}+3 x^{\frac{1}{4}}+7 \) 9. \( -4 x^{-100}+4 x^{100} \) 5. \( \frac{1}{2 x^{3}}+\frac{2}{3 x^{4}}-\frac{3}{4 x^{5}} \) 10. \( 1-16 x^{2} \)

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1515-84fd-1b84702e29f3 ACC 242 Fall 2023 NOV 13 11 You're checked in! Stay on this screen to remain in class. We'll let you know when your instructor starts an activity.

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The loudness level of a sound can be expressed by comparing the sound's intensity to the intensity of a sound barely audible to the human ear. The formula $D = 10(\log I - \log I_0)$ describes the loudness level of a sound, D, in decibels, where I is the intensity of the sound, in watts per meter$^2$, and $I_0$ is the intensity of a sound barely audible to the human ear. Use this information to answer parts (a) and (b) below. a. Express the formula so that the expression in parentheses is written as a single logarithm. $D = $ b. Use the form of the formula from part (a) to answer this question. If a sound has an intensity 1,000,000 times the intensity of a softer sound, how much larger on the decibel scale is the loudness level of the more intense sound? decibels louder (Type a whole number.)

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Texts: QUESTION 4 VILIVT A percentage of the capacity of the dams. The information shows the amount of water in 2016 and at the end of February 2017. Comparison of the amount of water in the dams in each province in South Africa in 2016 and in February 2017: 100 86.3 95 83.2 72.8 78.1 60.8 66.9 67.1 58.2 53.8 52.5 60.4 60.4 59.1 47.9 Amount of water in dams (%): 44.7 43.2 34.9 2016 Feb-17 State Gauteng Limpopo Eastern Cape KwaZulu-Natal Mpumalanga Northern Cape North West Free Western Cape Different provinces of South Africa (1) 4.1 List three provinces where the water availability decreased from 2016 to 2017. 4.2 Mention TWO possible reasons for the decrease mentioned in QUESTION 4.1. (2) 4.3 The amount of water in the dams of North West increased by 33.4% from 2016 to February 2017. Calculate the percentage increase this represents in comparison to the amount of water in 2016. 4.4 Explain TWO ways in which the building of dams could have a negative effect on the environment. [1]

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Problem 2 The outer contour of a thin plate of thickness, $t = 5$ mm is defined by the two curves shown on the figure. Determine the mass moment of inertia of the region between the two curves with respect to the centroidal Z axis. y (mm) y = 15\sqrt{x} y = 2x x (mm)

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