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OleMash [197]
4 years ago
5

In Europe, gas cost approximately €0.98 per liter. How many dollars($) per gallon is this? ​ using a factor method

Physics
1 answer:
bixtya [17]4 years ago
5 0

Answer:

€0.98 per liter = 4.377 doller per gallon

Explanation:

It is given that, In Europe, gas cost approximately €0.98 per liter. We need to convert it into dollars($) per gallon.

We know that, 1 euro = 1.18 United States Dollar

1 litre = 0.264172 US gallon

Cost of gas in Europe is €0.98 per liter.

0.98\ \text{euro/ liter}=\dfrac{0.98\times 1.18\ \text{doller}}{0.264172\ \text{gallon}}\\\\=4.377\ \text{doller/gallon}

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Answer

Given,

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angle of incidence, i = 35°

angle of refraction, r = ?

Using Snell's law

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1 x sin 35° = 1.6 x sin  r

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Angle of refraction is equal to 21°.

Now,

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d = 2.5 mm

α be the angle with horizontal surface and incident ray.

α = 90°-21° = 69°

t be the thickness of the film.

So,

tan \alpha = \dfrac{t}{d/2}

tan 61^0 = \dfrac{t}{2.5/2}

t = 2.26 mm

Hence, the thickness of the film is equal to 2.26 mm.

4 0
3 years ago
1.) if the total momentum for a system is the same before and after the collision, we say that momentum is conserved. if momentu
gogolik [260]

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<h3>What is momentum?</h3>

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Learn more about momentum:brainly.com/question/24030570

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6 0
2 years ago
If a person walks 3 blocks East, turns and walks 5 blocks north. The person then turns and walks 3 blocks west and then 5 blocks
torisob [31]
The person still walked 16 blocks but ended up in the same spot he started from
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3 years ago
You have been learning about chemical and physical properties in class. Your teacher asks you to make a Venn diagram that compar
Maru [420]

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6 0
3 years ago
Calculate the wavelength of the electromagnetic radiation required to excite an electron from the ground state to the level with
anastassius [24]

Answer:

2.11 m

Explanation:

<u>Given data</u>

h=6.626×10^{-34\\}(plank constant)

L=45.7 pm

n=n2-n1

n=5-1

n=4

<em>where,</em>

<em>n2=5</em>

<em>n1=1</em>

<u>To find:</u>

E=?

λ=? (Wavelength)

<u>solution</u>

The energy stored in an electron at a specified level is given by;

E=h^{2}×n^{2}÷8ml^{2}..........(1)

<em>m=mass of electron(9.1×</em>10^{-31})

<em>l=length of box</em>

<u>To find E</u>

putting the value of given data in eq(1)

E=9.41×10^{-16}

<u>To find λ</u>

λ=hc/E............................(2)

c=3×10^{8}(speed of light)

putting the value in eq 2 to find wavelength

λ=2.11 m

<u></u>

<u>Note:</u>

There is a chance in calculation error. but the method is correct to solve the problem.

7 0
3 years ago
Read 2 more answers
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