Quiz-1 Solns

Quiz-1 Solns - Quiz #1: Relativity February 5, 2007...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Quiz #1: Relativity February 5, 2007 Name: __SOLUTION__ Complete both of the following problems. Show all of your work for full credit. Problem 1 The lifetime of 6 2 He is 807 ms and it is traveling at 0.9 c relative to Earth. Can it travel the distance from Moon to Earth (384,400 km) before decaying? Show your work. First, use time dilation to find the particle’s lifetime t in your earth frame. Then, calculate the distance it travels using its speed and lifetime in your frame. () 22 2 88 8 11 ' 2.294 0.807 s 1.851s where 2.294 1 10 . 9 0.9 3 10 m/s 1.851s 5 10 m > 3.84 10 m tt vc xv t γγ ∆=∆ = = = = = ∆=∆= × = × × Yes, the particle will travel the distance before decaying. Problem 2 A missile is launched along y axis with a speed 0.98
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This homework help was uploaded on 04/22/2008 for the course PHYS 320 taught by Professor Baski during the Spring '04 term at VCU.

Ask a homework question - tutors are online