Science

Compare dalton’s atomic structure to Bohr’s

Impact of aeroanutics re-engineering in military forces

You will write a research paper on the possibility of life on a particular world; this can be a planet or moon in our solar system, or an exoplanet. After selecting a potentially habitable world and having it approved by your instructor, you will critically analyze the possibility that life exists there. The research will involve selecting several different published studies and synthesizing the results from these studies to arrive at your final assessment.

Question 1)                             80 Points                                 ~ 200 Words What are the differences between the Apparent Magnitude m, and Absolute Magnitude M ?  The brightness of an object depends on its distance in what way,  i.e. what is the term for this mathematical relationship?  From what distances are m & M determined?  Compare M  to the Luminosity L, which does not depend on distance. How are they similar?  If you take the difference of the Apparent Magnitude and Absolute Magnitude, i.e.  m – M = X,  what important quantity can you determine?   What is a “Standard Candle”?   Question 2)                             40 Points                                 ~ 100 Words Discuss the Hertzsprung–Russell diagram.  What types of variables are plotted on the horizontal and the vertical axes of the diagram?   What are the four main regions of the diagram,  and what kinds of stars are found there?  Why is the H-R diagram so useful in Astronomy?   Question 3)                             80 Points                                 ~ 200 Words For a star to be on the Main Sequence of a Hertzsprung–Russell diagram, what nuclear fuel must it be “burning” in its core?  Main Sequence stars must also be stable. This is known as Hydrostatic Equilibrium.  What are the two forces involved in Hydrostatic Equilibrium?  How does the Mass of a MS star effect its temperature, and hence its lifespan on the Main Sequence?  Compare the Main Sequence lifespans of a red dwarf star, a yellow star like our Sun and a blue giant star.  What happens to a star when it leaves the Main Sequence?  What are the two end results for a star when it exhausts its nuclear fuel,  and how does it depend on the star’s Mass?

View the video.  Pay attention to phrases like scientific method, anecdotal, experts, statistics, etc. Write a response; critique; comment on your thoughts. https://www.youtube.com/watch?v=6RDffMCAujg&feature=youtube_gdata_player

I need 5000 words exact. 1. Explain the difference between center of pressure of an airfoil and center of gravity and which one is usually ahead of the other? 2. What is the aspect ratio of a wing? 3. Explain MAC (Mean Aerodynamic Chord)? 4. Explain when the forces of lift, drag, weight, and thrust are balanced and in what condition of flight?

1-In a paragraph explain how a rocket works and why they are used to explore space. 2-In 1+ paragraph(s) explain why the launch of Sputnik in 1957 starts the space race.  3-In 1+ paragraph(s) explain how the American and Soviet approach to organizing their space program differed and how this affected their chances of getting to the Moon by the end of the decade. 4-In a paragraph summarizes the mode NASA decided on for going to the Moon. 5-In 1+ paragraph(s) explain what caused the Space Race to change our understanding of the Earth and ourselves. 6-In a paragraph explain how the end of the cold war influenced cooperation in space. 7-In 1+ paragraph(s) explain why we think Mars is a good place to look for the past or present life. 8-In a paragraph explain the concept of a space habitat. 9-In a paragraph summarize the known hazards of a trip by people to Mars. 10-In 1+ paragraph(s) explain why you think we should continue to explore space.

Your final project presentation will be focused on a topic that you select from the NASA Science, Solar System Exploration website. You can find the link in Unit 8 directly below this assignment tab. Research and select one major topic area from the menu tabs on the top right are of the home page. (Solar Systems, Planets, Moons, Asteroids, Comets, Meteors). Provide a thorough review of your topic, include statistical data, location, distance, composition, biologicals, and provide pictures and any current data if applicable. You will also find one peer-reviewed journal article pertaining to your selected topic. Be sure to provide a URL for your journal article. Submit your presentation to this area when complete. Presentation requirements: Title Page (1 page) Introduction (1- 2 pages) Body of Information (4 – 8 pages, including pictures) Data (1 – 2 pages, including charts) Analysis (1 – 2 pages, including charts) Conclusions (1 – 2 pages) References (as many as needed) APA style https://solarsystem.nasa.gov/

Subject is GMO’s in agriculture • Describe the diffusion of a contemporary innovation in the agricultural and natural resources context . Evaluate how the attributes of the innovation and adherence to the diffusion process affected its diffusion and the ultimate success or failure of the innovation? . All references should be listed in a reference section at the end of the paper; be sure to use APA 6 th Edition formatting. The reference page does not count as part of the page length.

What changes might have happened (or not happened) to the Earth if the Moon had never formed? How might this have influenced civilization? How might it have influenced the development of astronomy?