If v1 and v2 are in R4 and v2 is not a scalar multiple

If v1 and v2 are in R^4 and v2 is not a scalar multiple of v1, then {v1,v2} is linearly independent.

Solution

True

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How many seconds are required to produce 1.0g of silver

How many seconds are required to produce 1.0g of silver metal by the electrolysis of a AgNO3 solution using a current of 30 amps?

Solution

How many seconds are required to produce 1.0g of silver metal by the electrolysis of a AgNO3 solution using a current of 30 amps?

mol of Silver required = mass/MW = 1/107.8682 = 0.0092705727 mol of Ag

Ag+ + e- = Ag(s)

mol of e- = mol of Ag(s)

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1) 2) 3) 4) 5) 6)Solution1) x-component gt 18 i

1)

2)

3)

4)

5)

6)

Solution

1)

x-component => 18 i

y-component => 13 j

speed = sqrt(18^2 + 13^2) = 22.2

2)

tan(theta) = 13/18

theta = 35.83

3)

H = v0^2 sin^2(theta) / 2g

H = 22.2^2 sin^2(35.83)/2*9.8 = 8.616m

4)

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2H2O2gt 2H2O+O2 .038 moles of O2 are collected after te

2H2O2=> 2H2O+O2 .038 moles of O2 are collected after teh reactoin of 78.2 mL of a 4.6 M solution of H2O2. The Density of the solution is 1.4 g/mL. What is the percent yield?

Solution

Moles of H2O2 = Molarity * volume (L)
                          = 4.6 M * 0.0782 L
                          = 0.360 moles
2 H2O2 —–> 2 H2O + O2
2 moles of H2O2 should give 1 mole of O2
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Consider an investment project where the cash flow patt

Consider an investment project where the cash flow pattern repeats itself every five years forever. Use the capitalized equivalent method to compute the present worth of this project with an interest rate of 13.9%. The cash flow for the five years is given below: ($)

86

86

71

71

29

Solution

Sol. The Net value for first five years= 86/1.139 + 86/1.1392 + 71 /1.1393+71/1.1394 + 29/1.1395=$247.158

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x-9×2-9xSolutionfor standard form, for xgt9, x-9 (x-9)

|x-9|=x^2-9x

Solution

for standard form,

for x>9, |x-9| = (x-9)

so, ot becomes

x^2 – 9x = x-9

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For several years, a number of Food Lion, Inc., grocery

For several years, a number of Food Lion, Inc., grocery stores were unprofitable. The company closed some of these locations. It was apparent that the company would not be able to recover the cost of the assets associated with the closed stores. Thus, the current value of these impaired assets had to be written down.

A note in the financial statements indicated that the company tests assets for impairment when circumstances indicate that an impairment may exist. For impairment testing, each store is considered a cash-generating unit. Stores with potential impairments are tested by comparing their carrying value with their recoverable amounts.

b. Explain why the write-down of impaired assets is considered a noncash expense.

Solution

b)

The authoritative guidance for asset impairments is to ensure that they are recorded and dealt with as depreciation. The scope of the standard (that is, the types of transactions to whi███ ██████ █████████████████ ████████████████) ██████ ██████████████ ███████ ███ ████████████ █████ ██████████████████████████ █████ █████████ █████████████████████ ███████████ ██ ██ █████ ██████████ ██████████████

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For what types of activities are internal service funds

For what types of activities are internal service funds used to account? Provide several examples. Is a government required to account for the activities you cite in an internal service fund, or may it account for them instead in its general fund?

What is the rationale for accounting for nonexpendable endowment funds on a full, rather than a modified, accrual basis? Why is it important that depreciation be charged on long-term assets held as fiduciary fund investments?

Solution

Part A

Internal service funds are similar to enterprise funds, only the customers are other governmental agencies and departments within the municipality. This is more or less a cost reimbursement account. A printing center, media center, purchasing department, data processing center, etc are all examples of internal service funds. You shouldn\’t use the general fund to account for these services because in doing so you would lose transparency over what things actually cost.

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