Explain all answers clearly, with complete sentences and proper essay structure if needed. An asterisk (*) designates a quantitative problem, for which you should show all your work.
17.What’s wrong with this picture ?many science fiction stories have imagined the Galaxy divided into a series of Empires each having arisen from a different Civilization on a different world ,that hold one another at they because they are all at about the sarne level of military technology. is this a realistic scenario? explain.
Want to see the full answer?
Check out a sample textbook solutionChapter 15 Solutions
Cosmic Perspective Fundamentals
Additional Science Textbook Solutions
The Cosmic Perspective
The Cosmic Perspective (8th Edition)
Physics for Scientists and Engineers with Modern Physics
College Physics (10th Edition)
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
Essential University Physics (3rd Edition)
- Read each problem carefully. Solve each quadratic equation for the variable(s) specified. Be sure to show all of your work. Explain in two to three sentences what the meaning of the solution(s) are in relation to the problem situation. A rubric has been provided for reference. 1. An object is propelled off of a platform that is 75 feet high at a speed of 45 feet per second (ft./s). The height of the object off the ground is given by the formula h(t) = - 16t+45t+75, where h(t) is the object's height at time (t) seconds after the -16 object is propelled. The downward negative pull on the object is represented by Solve for t.arrow_forwardWrite solution detailed solution (Given, Unknown, Formula, Step-by-Step Solution). Box your final answer. Please make sure that your handwritten is readable. Thank you.arrow_forwardbox the finals answers. Provide the necessary explanations for your solutions. Show the necessary diagrams.arrow_forward
- format in solving: 1. given 2. diagram (simple labeled sketch) 3. solution (use formula from formula sheet) 4. therefore statement (full answer with correct sig figs)arrow_forwardA balloon, in the shape of a right circular cylinder, is being inflated in such a way that the radius and height are both increasing at the rate of 3 cm/s and 8 cm/s, respectively. What is the rate of change of its total surface area when its radius and height are 60 cm and 140 cm, respectively?arrow_forwardAnswer Activity in a separate paper. Show the solution for every answer (for problem solving ones only). In presenting solution, it should be in the same sequence as the asked problem. Avoid too many erasures (to prevent this, solve first in a scratch paper and after finalizing, transfer it to the final paper for submission). Box your final answer with appropriate units. Retain 3 decimal places for intermediate value calculation. Not following instruction means a corresponding point deduction. 1. What magnitude point charge creates a 10,000 N/C electric field at a distance of 0.250 m? How large is the field at 10.0 m?arrow_forward
- Show your complete solution and illustrate if applicable. box the final answer. Please write your solution clearly and readable. Thank you.arrow_forwardPlease check if I completed this question correctly. If I solved it correctly. And the answer is correct Image 1: The question Image 2: My workarrow_forwardformat in solving: 1. given 2. diagram (simple labeled sketch) 3. solution * formula (from formula sheet) * algebra * substitution * solve 4. therefore statement (full answer with correct sig figs)arrow_forward
- For the following homework problems please show all of your work. 1. If the energy of a photon is given by the equation E = hv, where h is known as Planck's constant, and has the value of h = 4.136 x 10-15 eV -s, then complete the following table. Please note: the unit called an electron volt (eV) is a unit of energy whose value is compa- rable to the values seen in atomic transitions, and a Hertz is Hz = 1/s. Be sure to show all of your work! %3D Spectral Region | Frequency (v) Radio Energy (E) 3.00 x 10° Hz Microwave 1.24 x 10- eV |Infrared 3.00 x 1012 Hz Red 1.77 eV Yellow 6.00 x 10" Hz Blue 3.10 eV 3.00 x 105 Hz 3.00 x 1019 Hz Ultraviolet X-Ray Gamma Ray 1.24 x 10° eVarrow_forwardDirection: Read and answer the following problems using the factor-labelmethod or dimensional analysis. Please Show Your Work 1. A STEM student has a mass of 100 pounds and a height of 6 feet. What ishis mass in kilogram and height in meter? 2. An aluminum metal has an area of 22m2. What is its area in cm2?arrow_forwardPlease answer part A. Show all work and highlight your answers. Thank you in advanced!arrow_forward
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON