Mars and Venus are at very different distances from the Sun and Venus is twice the size of Mars, yet their atmospheric compositions are nearly identical. How can this be given their dramatic physical differences? Explain using the data and equations above. (Note: you may need to do some calculations here to back up your reasoning).
Question 5 (4 pts): Calculate how far (distance in AU) the Moon would have to be from the Sun for it to retain a nitrogen atmosphere. Hint: set both vegas equations equal to each other and solve for the missing variable. Does your result make sense? Hint: think about velocities (velocity refers to speed and direction) and temperatures to explain.
Astronomy is all about observation. A lot of significant discoveries were made by “amateurs” who were dedicated to their passion for looking at the night sky. The advent of space-based and large automated telescopes has brought with it a constant stream of data – far too much for professional astronomers to look at and catalog. But, the computerized analysis may miss things only a human observer would notice. And so, there is a renewed need for interested citizen scientists who have time and a passion for discovery. Zooniverse is a website that helps connect scientists with large sets of data to citizen scientists who may be able to help them analyze it. Your assignment is to visit the website (http://www.zooniverse.org/ ), join a project that interests you, and report back on your experiences. There are several space-oriented projects, but in order to maintain relevance to the material we are covering in this class, please limit your choice to one of the following: 1. Galaxy Zoo: How do galaxies form? 2. Solar Jet Hunter
3. Dark Energy Explorers 4. Citizen ASAS SN 5. Zwicky Chemical Factory 6. Bursts from Space 7. Gravity Spy 8. Supernova Hunter Keep a log of your work including information about the project you chose, a basic description of the tasks you worked at, the hours you spent, and what you accomplished. Be sure to also document your thoughts as you go along to assist you in writing your final report. Your report should include the following sections: 1. Introduction: a description of the project you joined, including background on what is being studied and why. 2. Methods: this should include information about the source of the data you worked with and a description of the task(s) you performed to analyze it. 3. Results: a summary table of your work and a description of what you accomplished. ● Example table (make your own table for your specific observing projects, and feel free to make the columns that make sense to summarize your specific work)
In class, we discussed how the small angle approximation can be used to simplify a lot of math in astronomy. This approximation says that for “small” angles that are expressed in radians, we can say sinθ≈tanθ≈θ.
a) (2 pts) Assume θ=0.00012345 radians. Directly calculate sin(θ) and tan(θ), quoting the values you get to 5 significant digits. Discuss whether you think the small angle approximation does an OK job in this situation.
b) (1 pt) Look at this plot, which shows θ, sin(θ), and tan(θ) as a function of θ (with all angle units in radians). Based on these curves, up to how large of an angle does the small angle approximation still, does a pretty good job?
c) (3 pts) Astronomers commonly use units of “arcseconds” or “arcminutes” to measure small angles in the sky. These are defined so that 60 arcseconds=1 arcminute and 60 arcminutes=1˚. Calculate sin(1 arcsecond). State whether or not the small angle approximation is accurate for this angle.
String Theory is an approach to realizing Einstein’s dream of a unified theory of physics, a single overarching framework that would be able to describe all the forces at work in the universe. The central idea of string theory says that if you examine any piece of matter ever more finely, at first you’ll find molecules and then you’ll find atoms and subatomic particles. But the theory says that if you could probe smaller, much smaller than we can with existing technology, you’d find something else inside these particles — a little tiny vibrating filament of energy, a little tiny vibrating string. Just like the strings on a violin, they can vibrate in different patterns producing different musical notes. These little fundamental strings, when they vibrate in different patterns, they produce different kinds of particles — so electrons, quarks, neutrinos, photons, all other particles would be united into a single framework, as they would all arise from vibrating strings.
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It’s called inflationary cosmology, which identified a particular kind of fuel that would naturally generate an outward rush of space. The fuel is based on something called a quantum field, but the only detail that matters for us is that this fuel proves to be so efficient that it’s virtually impossible to use it all up, which means in the inflationary theory, the Big Bang giving rise to our universe is likely not a one-time event. Instead, the fuel not only generated our Big Bang, but it would also generate countless other Big Bangs, each giving rise to its own separate universe with our universe becoming but one bubble in a grand cosmic bubble bath of universes.
Which of the following is consistent with current literature regarding the epidemiology of dependent personality disorder? I” A Dependent personality is more common in men than in women. A dependent personality disorder is more common in young children than in I" older ones. C Persons with chronic physical illness in childhood may be most susceptible to t" this disorder. It… DElandConly
Considering what you learned about groups if you or someone you knew had a choice to be tried by either a judge or a jury, which would you choose, and why?
Discuss strategies to provide care to patients who are from different cultures and may have different cultural beliefs. For example, what might the APN do if the patient refuses a high-quality, evidence-based treatment meant to cure the illness because of cultural beliefs? How can the APN respect cultural beliefs while still providing quality care? In what ways can the nurse do more than simply “do no harm?”
When teaching a patient about the importance of taking Thyroxine Sodium for their hypothyroidism, which of the following is TRUE and the most important point that they understand?
Select one:
a. That regular check-ups are required to check “thyroxine levels” so medication doses can be changed and eventually stopped once therapeutic levels are reached.
b. Take medication with food at the same time every evening.
c.That they keep a list of the medications in their purse/wallets for emergencies.
d.That they must take this medication for the rest of their life and regular check-ups are essential.
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