Learning Materials
Features
Discover
Chapter 36: Q. 66 (page 1062)
At what speed, as a fraction of c, is the kinetic energy of a particle twice its Newtonian value?
The speed will be
Over 30 million students worldwide already upgrade their learning with Vaia!
All the tools & learning materials you need for study success - in one app.
Get started for free
A modest supernova (the explosion of a massive star at the end of its life cycle) releases of energy in a few seconds. This is enough to outshine the entire galaxy in which it occurs. Suppose a star with the mass of our sun collides with an antimatter star of equal mass, causing complete annihilation. What is the ratio of the energy released in this star-antistar collision to the energy released in the supernova?
At what speed, as a fraction of c, is a particle’s momentum twice its Newtonian value?
Our Milky Way galaxy is in diameter. A spaceship crossing the galaxy measures the galaxy’s diameter to be a mere .
a. What is the spacecraft’s speed, as a fraction of , relative to the galaxy?
b. How long is the crossing time as measured in the galaxy’s reference frame?
Teenagers Sam and Tom are playing chicken in their rockets. As FIGURE Q36.2 shows, an experimenter on earth sees that each is traveling at as he approaches the other. Sam fires a laser beam toward Tom.
a. What is the speed of the laser beam relative to Sam?
b. What is the speed of the laser beam relative to Tom?
At what speed, as a fraction of would a round-trip astronaut “lose” of the elapsed time shown on her watch?
What do you think about this solution?
We value your feedback to improve our textbook solutions.
Explanations 
Textbooks 
Exams 
GCSE 
IGCSE 
AS 
A Level 
International A Level 
University Admissions Tests 
Flashcards 
Vaia AI 
Notes 
Study Plans 
Study Sets 
Find a job 
Find a degree 
Student Deals 
Magazine 
Mobile App