Imagine that you need to completely stop the motion of the spaceprobe and have it remain at rest while you perform a shutdown and restart procedure. You have decided that the best place to carry out this procedure would be at the position where the net (or total) gravitational force on the spaceprobe by Mars and Earth would be zero. On the diagram, label the location where you would perform this procedure. (Make your best guess; there is no need to perform any calculations here.) Explain the reasoning behind your choice.
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- The figure below shows a spaceprobe and five planets (A, B, C, D, and E). The motion of the spaceprobe is indicated by the arrow, and has a constant velocity of u/c = 0.8. The spaceprobe broadcasts a radio signal in all directions. A D B E The spaceprobe sends the radio signal every 3 months, as measured by a clock on board the spaceprobe. What is the time interval between signals as measured by an observer on planet A? Give your answer in units of months.arrow_forwardIn general relativity, gravity changes time. Gravitational potential = - G M / R. Time change r = At/t = A/c². A satellite (e.g., GPS) orbits 21 km above Earth surface, and gravity at the satellites are a little different from Earth surface. The distance error is Ad = c At. Ad is km in one day Please do not copy and paste. Thank you!arrow_forwardThe law of conservation of energy states that energy can be converted from one form to another but cannot be created or destroyed. Therefore, the amount of energy in the universe is constant. In your initial post to the discussion, respond to the following prompts: What do you think would happen if energy were not conserved? Think of (and share) two scenarios in which our lives would be drastically altered if this law of conservation was not in place. At least one of your scenarios should be at the molecular level. Would the implications be positive? Negative? Explain.arrow_forward
- Define the escape velocity and discuss the factors upon which it depends. Is it same or different for all planets in the Universe? Explain the reasonarrow_forwardSuppose we find an Earth-like planet around one of our nearest stellar neighbors, Alpha Centauri (located only 4.4 light-years away). If we launched a "generation ship" at a constant speed of 1500.00 km/s from Earth with a group of people whose descendants will explore and colonize this planet, how many years before the generation ship reached Alpha Centauri? (Note there are 9.46 ××1012 km in a light-year and 31.6 million seconds in a year.arrow_forwardSuppose astronomers found evidence of an earth-like planet 20 lightyears away. a) what may be two ethical considerations that one may consider when deciding if humans should travel to this planet? b) how fast would a spaceship need to travel if the roundtrip can no take longer than 40 years for the astronauts? c) how much time will the trip take according to the people on earth?arrow_forward
- The Empire Strikes Back The starships of the Solar Federation are marked with the symbol of the Federation, a circle, whereas starships of the Denebian Empire are marked with the Empire's symbol, an ellipse whose major axis is nnn times its minor axis (a=nb) in the figure (Figure 1). Part A: How fast, relative to an observer, does an Empire ship have to travel for its markings to be confused with those of a Federation ship? Use c for the speed of light in a vacuum. *Express answer in terms of n and c.arrow_forwardplease use 180 Ibs Answers: a) Your Weight (Planet 1) Lbf Specific Weight of Water Lbf/Ft^3 b) Your Weight (Planet 2) Lbf Specific Weight of Water Lbf/Ft^3 c) Your Welght (Planet 3) Lbf Specific Weight of Water Lbf/Ft^3 What is your own body weight (Lbf) on the following (3) planets and what is the specific weight of water on the (3) planets? PLANET 1: An object falls from rest for a time of 2.50 sec with a striking velocity of 84.1 ft/sec. PLANET 2: An object falls from rest for a time of 5.63 sec with a striking velocity of 25.8 ft/sec. PLANET 3: An object falls from rest for a time of 1.46 sec with a striking velocity of 135.3 ft/sec.arrow_forwardIdentify Einstein's two postulates for the Special Theory of Relativity and include evidence that supports them. Include a diagram and relevant physics terminology in your answer.arrow_forward
- Can you please help w/ the question in the pic? This is the data I have so far: 1. Determine the mass M of the massive object at the center of the Milky Way galaxy. Take the distance of one light year to be 9.461x10^15: answer= 4.26*10^37 2.Express your answer in solar masses instead of kilograms, where one solar mass is equal to the mass of the sun, which is 1.99*10^30: answer=2.14*10^7 TIAarrow_forwardplease use 180 Ibs Answers: a) Your Weight (Planet 1) Lbf Specific Weight of Water Lbf/Ft^3 b) Your Wolght (Planet 2) Lbf Specific Weight of Water Lbf/Ft^3 c) Your Weight (Planet 3) Lbf Specific Weight of Water Lbf/Ft^3 What is your own body weight (Lbf) on the following (3) planets and what is the specific weight of water on the (3) planets? PLANET 1: An object falls from rest for a time of 2.50 sec with a striking velocity of 84.1 ft/sec. PLANET 2: An object falls from rest for a time of 5.63 sec with a striking velocity of 25.8 ft/sec. PLANET 3: An object falls from rest for a time of 1.46 sec with a striking velocity of 135.3 ft/sec.arrow_forwardExplain Variable Gravitational Acceleration ?arrow_forward
- University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice UniversityAstronomyPhysicsISBN:9781938168284Author:Andrew Fraknoi; David Morrison; Sidney C. WolffPublisher:OpenStax