Physics
, 21.06.2019 19:30 nsankey8032
The lights used by mark watley (played by matt damon) during the film the martian seem to be metal halide lamps. metal halide lamps are filled with vaporized mercury and metal-halogen compounds. when an electric current is passed through the lamp, the tube begins to glow a bright white/blue color. if you were to pass this light through a prism to separate the individual light frequencies, you would see a rainbow just as you would if using natural sunlight because of the complexity of the metal halide gas and the vast amount of possible electron transitions. (the study of light in this way is known as spectroscopy and allows astronomers to know exactly what atoms compose distant stars, simply by looking at the light they emit. the spectral lines an atom produces uniquely identifies that atom just like a fingerprint uniquely identifies a person. the momentum equation and energy equation that we have used above can be combined to give the following equation: c = e p where again p is the phonon momentum, e is the photon energy and c is the speed of light. when you divide the photon energy found in #6 by the photon momentum found in #4, do you get the speed of light? (if not, check your work for questions #4 through #6). yes no
Answers: 2
Show answers
Physics, 22.06.2019 07:10
If 112 moles of ideal mono-atomic gas initially at 500 kpa undergoes isothermal expansion from 0.555 m^3 to 2.56 m^3 then (a) what is the initial and final temperatures of the gas ? (b) how much work is done during this process ?
Answers: 2
Answer
Physics, 22.06.2019 13:00
Which of the following are appropriate acceleration units?
Answers: 1
Answer
Physics, 22.06.2019 15:30
Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)
Answers: 3
Answer
Physics, 22.06.2019 19:30
If the area of a square has increased by a factor of 16, by how much has each side increased?
Answers: 3
Answer
The lights used by mark watley (played by matt damon) during the film the martian seem to be metal h...
History, 19.05.2020 03:11
What event was most significant in bringing about the end of the Cold War?...
Biology, 19.05.2020 03:11
As a population moves toward carrying capacity, its growth rate begins to slow significantly. Which of the following factors could reasonably cause th...
Arts, 19.05.2020 03:11
Culinary Arts 5 Cooking Methods for Fish and Shellfish Section 2.2 1. The final resting temperature for seafoods should be abo...
Mathematics, 19.05.2020 03:11
You are attempting to make a scale drawing of your room. The actual size of your room is 12 feet wide by 15 feet long. You will use the scale 1...
History, 19.05.2020 03:11
What are some short facts about the English colonization...
Biology, 19.05.2020 03:11
Plasmolysis pictures ...
History, 19.05.2020 03:11
Match these terms with their definitions. 1. great writ trial by jury 2. legislature convicts habeas corpus 3. apply ret...
Mathematics, 19.05.2020 03:11
Which of the functions below could have created this graph? A. F(X)=x5+2x4+3x B. F(x)=x3+x+2 C. F(x)=1/2x4+x3+x D. F(x)=-x4+1
English, 19.05.2020 03:11
WILL GIVE BRAINLIEST THE STOLEN PARTY Choose the best answer and explain why you believe it is the correct answer. a. The setting sh...
Mathematics, 19.05.2020 03:11
Company A charges a $100 annual fee plus a $9/hr car share fee. Company B charges $120 plus $7/hr. What is the minimum number of hours that a ca...
English, 19.05.2020 03:11
1. Pizza tastes setter tan broccoli. Fact or Opinion Explain: _ 2. The average slice of deep-dish cheese pizza has between 3...
Geography, 19.05.2020 03:11
Which of the following is not a characteristic of a tropical wet and dry climate? A. extremely cold, dry winter months B. high humidity le...
History, 19.05.2020 03:11
Question 9 of 10 2 Points According to the Tenth Amendment, the powers of those specifically listed in the Constitution. are l...
Biology, 19.05.2020 03:11
Mendelian inheritance...
Social Studies, 19.05.2020 03:11
Who was the 35th president of the United States?...
History, 19.05.2020 03:11
2. How long were the members of the Corps of Discovery away from their homes? How would you describe the nature of the expedition?...
Physics, 19.05.2020 03:11
A _ reaction involves burning....
Arts, 19.05.2020 03:11
Birthday 1915 Marc Chagall What is the color scheme for this painting? And what perspective is demonstrated?...
Mathematics, 19.05.2020 03:11
Simplify cot O tano....
Mathematics, 19.05.2020 03:11
Her beauty was an inspiration t...
More questions: Physics Another questions