Refraction of a sunset Air has a small, usually negligible index of refraction. It is 1.0002926....
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Refraction of a sunset Air has a small, usually negligible index of refraction. It is 1.0002926. This causes the Sun to actually be below the horizon when it appears to be just on the verge of sinking below it. Suppose you are on the sea-shore watching the Sun apparently sinking into the ocean. When only its upper tip is still visible, by what fraction of the diameter of the Sun is that tip actually already below the surface? To answer this question, as an approximation, take the earth's atmosphere as being of uniform density out to a thickness of 9.10 km, beyond which there is no atmosphere. This means that, with the Earth's radius being 6371 km, your line of sight due West along the ocean surface to the horizon will intersect this "upper surface of the atmosphere at about 340.6 km from your eye. (If you enjoy trigonometry you can check this figure for yourself.). Note that the diameter of the sun subtends 0.5000 degrees at your eye. Refraction of a sunset Air has a small, usually negligible index of refraction. It is 1.0002926. This causes the Sun to actually be below the horizon when it appears to be just on the verge of sinking below it. Suppose you are on the sea-shore watching the Sun apparently sinking into the ocean. When only its upper tip is still visible, by what fraction of the diameter of the Sun is that tip actually already below the surface? To answer this question, as an approximation, take the earth's atmosphere as being of uniform density out to a thickness of 9.10 km, beyond which there is no atmosphere. This means that, with the Earth's radius being 6371 km, your line of sight due West along the ocean surface to the horizon will intersect this "upper surface of the atmosphere at about 340.6 km from your eye. (If you enjoy trigonometry you can check this figure for yourself.). Note that the diameter of the sun subtends 0.5000 degrees at your eye.
Expert Answer:
Related Book For
Posted Date:
Students also viewed these physics questions
-
Where do you expect to find the most useful sources? What are some advantages and disadvantages of using Google, the DeVry Library, and local community sources? How will you approach your search?...
-
Planning is one of the most important management functions in any business. A front office managers first step in planning should involve determine the departments goals. Planning also includes...
-
The Crazy Eddie fraud may appear smaller and gentler than the massive billion-dollar frauds exposed in recent times, such as Bernie Madoffs Ponzi scheme, frauds in the subprime mortgage market, the...
-
The functions in Exercises 1128 are all one-to-one. For each function, a. Find an equation for f -1 (x), the inverse function. b. Verify that your equation is correct by showing that f( f -1 (x)) = x...
-
At the airport, you observe some of the jets as they take off. With your watch you find that it takes about 35 seconds for a plane to go from rest to takeoff speed. In addition, you estimate that the...
-
The following accounts and their balances appear in the ledger of Young Properties Inc. on November 30 of the current year: Common Stock, $40 par ............................... $ 3,000,000 Paid-In...
-
The comparative financial statements of Bien Taco Restaurants for 2010, 2009, and 2008 include the following selected data: Requirements 1. Compute these ratios for 2010 and 2009: a. Quick ratio. b....
-
The financial statements of Simon Co. include the following items (amounts in thousands): Income Statement 2011 For the Year Ended December 31, Net income . . . . . . . . . . . . . . . . . . . . . ....
-
Question 21 (1 point) As discussed in lecture, how were they able to better estimate how many people were actually washing their hands? What type of research did they use? (Related to the above...
-
Based on the information presented in the minicase, and the discussion in both Chapter 2 and this chapter, to what extent does Elon Musk fit the general charac- teristics of an entrepreneur and a...
-
Wildhorse Candle Supply makes candles. The sales mix (as a percentage of total dollar sales) of its three product lines is birthday candles 30%, standard tapered candles 60%, and large scented...
-
explain the various leaadership styles and discuss their silent features. which leadership style is best and why?
-
Job Satisfaction - discuss the level of job satisfaction experienced by employees.
-
Consider the relationship between service levels and cost. Then discuss how the typical customer service objectives and levels of performance in each objective will affect the cost of serving the...
-
List and discuss the three economic justifications for government regulation. If one of these exists, does that mean that regulation should be imposed?
-
Explore the cost of evidence - based practice and discuss if this is or is not an affordable option.
-
You think XYZ stock has potential for an upward move in price. You have no position whatsoever in the stock now. You would like to take the opportunity of any up movement in price but want to...
-
An item of depreciable machinery was acquired on 1 July 2009 for $120,000 by cash It is expected to have a useful life of 10 years and zero salvage value On 1 July 2012, it was decided to revalue the...
-
The average energy expended for an animal to walk or run 1 km can be estimated by the function where (m, v) is the energy used (in kcal per hour), m is the mass (in g), and v is the speed of movement...
-
The following table gives the median age at the first marriage of women in the United States for some selected years. (a) Plot the data using t = 50 for 1950, and so on. (b) Would a linear or...
-
Given the revenue and cost functions R = 50x - 0.4x 2 and C = 5x + 15 (in dollars), where x is the daily production (and sales), find the following when 40 units are produced daily and the rate of...
-
During 2020, Valley Sales Inc. earned revenues of \(\$ 500,000\) on account. Valley Sales collected \(\$ 410,000\) from customers during the year. Expenses totalled \(\$ 420,000\), and the related...
-
Great Sporting Goods Inc. began 2020 owing notes payable of \(\$ 4.0\) million. During 2020 , the company borrowed \(\$ 2.6\) million on notes payable and paid off \(\$ 2.5\) million of notes payable...
-
Marquis Inc. made sales of \(\$ 700\) million during 2020. Of this amount, Marquis Inc. collected cash for all but \(\$ 30\) million. The company's cost of goods sold was \(\$ 300\) million, and all...
Study smarter with the SolutionInn App