Special Relativity Question An electron whizzes past sally the physicist at a speed of 0.5 C. Sally gasps in amazement. Her gasp lasts 1 second. How long would her gasp last if it were observed by John, who is traveling with the electron? If Sally puts her hands 1 meter apart. How far apart are her hands according to John, in the reference frame? Finally, how long does it take the electron to travel from one of sally’s hand top the other? Answer for both reference frames: Sally’s and John’s.

Special Relativity Question An electron whizzes past sally the physicist at a speed of 0.5 C. Sally gasps in amazement. Her gasp lasts 1 second. How long would her gasp last if it were observed by John, who is traveling with the electron? If Sally puts her hands 1 meter apart. How far apart are her hands according to John, in the reference frame? Finally, how long does it take the electron to travel from one of sally’s hand top the other? Answer for both reference frames: Sally’s and John’s.