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Alekssandra [29.7K]
3 years ago
5

If a star is 13.7 light years away from earth, how can we tell which elements it is made of?

Physics
1 answer:
ICE Princess25 [194]3 years ago
8 0
Light year is a unit of measure of time that makes use of the speed of light and distance between objects to determine the number of years it will take for the light to travel. We can determine what element the object is made up of by the wavelength of the color. 
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Mr. Rudman drives his race car for 4 hrs at 150<br> miles/hr. How far will he travel?
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150*4=600
So the answer is 600
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How long does it take a car travelling at 60 m.p.h to cover 5 miles?
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Tyler drives 50km north. Tyler then drives back 30km south. What distance did he cover? What was his displacement?
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answers At the beginning of 2019, Robotics Inc. acquired a manufacturing facility for $12.3 million. $9.3 million of the purchas
pshichka [43]

Answer:

$613,077

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Calculation for the depreciation on the building for 2021

First step is to calculate the depreciation expense for the year 2019 and 2020 using this formula

Depreciation expense = (Purchase price - Residual value) ÷ (Useful life)

Let plug in the formula

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Second step is to calculate the book value for the year 2021 using this formula

Book value = Purchase price - Depreciation expenses *2 years

Let plug in the formula

Book value= $9,300,000 - $400,000 × 2

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2021 Depreciation=(Book value-Residual value)÷Useful life

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2021 Depreciation= $613,077

Therefore the depreciation on the building for 2021 will be $613,077

8 0
3 years ago
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