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Sav [38]
2 years ago
9

In an electrically heated home, the temperature of the ground in contact with a concrete basement wall is 12.2 oC. The temperatu

re at the inside surface of the wall is 18.2 oC. The wall is 0.15 m thick and has an area of 7.6 m2. Assume that one kilowatt hour of electrical energy costs $0.10. How many hours are required for one dollar's worth of energy to be conducted through the wall
Business
1 answer:
amm18122 years ago
3 0

1000 hours are required for one dollar's worth of energy to be conducted through the wall.

<h3>What is electricity?</h3>
  • A type of energy produced by charged particles (such electrons or protons), either statically as a buildup of charge or dynamically as a current.
<h3>What is heat?</h3>
  • Heat is the result of the movement of kinetic energy within a material or an item, or from an energy source to a material or an object.
  • Radiation, conduction, and convection are the three mechanisms through which such energy can be transferred.
<h3>Solution -</h3>

Assuming your heat loss is correct, and that costs you 0.10 cents.

That will cost you a dollar's worth of electricity in 100/0.10 = 1000 hours.

Therefore, 1000 hours are required for one dollar's worth of energy to be conducted through the wall.

Know more about kinetic energy here:

brainly.com/question/25959744

#SPJ4

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Question Workspace Check My Work You have savings of $100. You plan to save another $100 at the beginning of each year for 5 yea
kolezko [41]

Answer:

Total sum due after 5 years = $2,626.9

Explanation:

The sum of 100 that is invested per period(quarterly)for certain number of period is referred is referred  to as an annuity. The total sum that the investment would worth after if interest rate is compounded quarterly for the investment period is referred to as the future value of annuity.

The total sum due can be computed in two stages. The first is to determined how much the annuity investment would worth after 5 years. And the second is to determine how much the single sum of $100 would worth after 5 years.

This done as follows:

The future Value of annuity is computed using the formula below:

FV = A×( (1+r)^n - 1)/r)× (1+r)

A- periodic cash flow invested

r- interest rate per period

n- number of period

FV = future value

r= 8/4= 2%

n= 5×4= 20

FV= 100×(1.02^20 -1)/0.02)×(1.02)= 2478.3

Step 2 : The future value of the value of the Initial lump sum of $100 already existing

FV= A× (1+r)∧n

= 100×(1.02)^20 =148.59

The sum due after the end of the investment period =

2478.3 + 148.59=$2,626.9

Total sum due after 5 years = $2,626.9

7 0
3 years ago
On January 1, Year 1, Chaco Company sold $300,000 of 10% twenty-year bonds. Interest is payable semiannually on June 30 and Dece
Andrei [34K]

Answer:

The amount of effective interest expense that chaco will record in the first six months is $14,375

Explanation:

interest payment that will be first made is on June 30, Year 1. Therefore, the outstanding balance used in the calculation is the issue price.

The interest expense is calculated by these formula

Interest expense = Effective semiannual interest rate × Outstanding balance

Interest expense = (8% ÷ 2) × $359,378 = $14,375

So the interest expense is gotten as %14,375

8 0
3 years ago
Read 2 more answers
The common stock of Alpha Manufacturers has a beta of 1.14 and an actual expected return of 15.26 percent. The risk-free rate of
Gre4nikov [31]

Answer: d. The actual expected stock return indicates the stock is currently underpriced.

Explanation:

According to CAPM, the expected return is:

= Risk free rate + beta * (market return - risk free rate)

= 4.3% + 1.14 * (12.01% - 4.3%)

= 13.09%

The actual expected return is greater than the CAPM expected return.

This stock is underpriced because it is bringing in a higher return than CAPM predicted based on the market.

8 0
3 years ago
B Company switched from the sum-of-the-years-digits depreciation method to straight-line depreciation in 2018. The change affect
azamat

Answer:

$9120

Explanation:

Using sum of years digit,

5+4+3+2+1=15

5/15*(72000-3600)=22800 for first year

4/15*68400 = 18240 for second year

Total depreciation before change of accounting policy = 22800+18240=41040

Net value of asset at start of 2018 = 68400-41040= 27360

Straight line depreciation for 2018 = 27360/3 = 9120

4 0
3 years ago
A machine costing $57,000 with a six-year life and $54,000 depreciable cost was purchased January 1. Compute the yearly deprecia
RSB [31]

Answer:

$9,000

Explanation:

The computation of the depreciation expense using the straight-line method is shown below;

= (Purchase value of machinery - residual value) ÷ (estimated useful life)

= $54,000 ÷ 6 years

= $9,000

The depreciation cost is the cost which is come after considering the salvage value and the same is to be considered

Hence, the depreciation expense is $9,000

5 0
3 years ago
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