College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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I am so confused on relative length and proper length. is it 7.07 or 70.7?
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- The Millennium Falcon is approximately 35.2 m long. There are conflicting reports, but the Falcon made the Kessel Run in approximately 12.27 parsecs. This is an odd unit to measure speed with as a parsec is a unit of length equal to 3.26 light-year. The science FICTION comes in when you consider that ships in Star Wars use hyperdrive to travel faster than the speed of light, so they are able to make jumps through space. Han Solo picked difficult or dangerous points to jump between to make the trip so short. Let's imagine that the Millennium Falcon travels at 0.96c during the 12.27 parsec Kessel Run. What distance, in light-year, does an observer at the finish line measure for the trip? Don't forget to convert parsec to light-year. X light-year What distance, in light-year, does Han Solo measure for the trip as he pilots the ship? light-year Which person measures the proper distance of the trip? Which person would measure the proper length of the Millennium Falcon?arrow_forwardTime left 0:37:58 of on The force of gravitational attraction between two objects with masses m1 and m2, at a distance r apart, is given by Gm, m2 F = 12 of The dimensions of G (the universal constant of gravitation) is O a. M1L2T 3 O b. M1L3T2 O c. M'L3T2 O d. ML3T2arrow_forwardA rocket ship traveling near the speed of light appears to a stationary observer to shorten with speed. A rocket with a length of 200 meters will appear to a stationary observer to have a length of 200 Sqrt[1-r^2]meters, where r is the ratio of the velocity of the ship to the speed of light. What is the apparent length of the rocket ship if it is traveling at a speed that is 99% off the speed of light?arrow_forward
- 1. A rocket flies toward the earth at c, and the captain shines a laser light beam in the forward direction. Which of the follow- ing statements about the speed of this light are correct? (There may be more than one correct answer.) A. The captain measures speed c for the light. B. An observer on earth measures speed e for the light. C. An observer on earth measures speed c for the light. D. The captain measures speed c for the light.arrow_forward11. A star is 40.0 light-years from Earth (1 light-year is the distance that light travels in 1 year). (a) How far would you measure this distance to be if you traveled it in a spaceship moving at 1.00 x 108 m/s? (b) How long would the trip last (for you)?arrow_forwardOne year (yr) is 365.24 days. One light-year (lyr) is 9.467 × 10^15 m. Convertthe speed of light (3.00 × 10^8 m/s) to lyr/yr.arrow_forward
- The star Epsilon Eridani is 10.4 light-years from Earth. Imagine a spaceship that travels from Earth to Epsilon Eridani at a constant speed of 0.921c. On Earth, we would measure the time it takes for the ship to reach the star to be (10.4ly/0.921c)= 11.2 years. (a) How much time (in years) would it take the ship to travel from the Earth to the star as measured by a passenger aboard the ship? years (b) What is the distance to the star (in light years) as measured by a passenger aboard the ship?arrow_forwardThe speed of light in free space has been measured to be 2.99792458 x 108-m/s. Express the speed of light to (a) three significant figures, (b) five significant figures, and (c) seven significant figures.arrow_forwardIn your own words, describe the motion of the object from time t = 5s to 10s. Provide as much detail as possible. v (m/s) 61 3 1. 5. 6 7 t (s) 0 11 12 4 8 9. -1 -2H I U = 三 O Type here to search 69 F 4. 2.arrow_forward
- A star is 16.6 light-years from Earth. Part A How long would it take a spacecraft traveling 0.950c to reach that star as measured by observer on Earth? tEarth = 53.25 Submit Previous Answers Request Answer Part B X Incorrect; Try Again; 4 attempts remaining t = 175| ΑΣΦ Submit Part C How long would it take a spacecraft traveling 0.950c to reach that star as measured by observer on the spacecraft? 1 = 15. ΑΣΦ Submit 5 Request Answer [ΠΙ ΑΣΦ www F Request Answer 2 ? What is the distance traveled according to observers on the spacecraft? ? years ? years light-yearsarrow_forwardAs a spaceship is moving toward Earth, an Earthling measures its length to be 403 m, while the captain on board radios that her spaceship's length is 624 m. Calculate the spaceship's speed relative to earth and supply the missing numerical factor below. __)carrow_forwardsirius is the brightest star in the sky. it is 9 light years away. if you were to travel there and back at .95C how much would you age?arrow_forward
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