EE 131: Modern Physics
Sheet #1
Time Dilation
1. An observer on a spacecraft moving at 0.70c relative to the earth finds that a car takes 40.0
min to make a trip. How long does the trip take to the driver of the car?
2. Two observers, A on earth and B in

Sheet Classical Relativity
1.
You are piloting a small airplane in which you want to reach a destination that is 750 km due north of your
starting location. Once you are airborne, you find that (due to a strong but steady wind) to maintain a
northerly cou

2015-2014:
:
:
:54
Alexandria University
Faculty of Engineering
Electrical Engineering Department
Midterm Exam of 1st term 2014-2015
Course title : Modern Physics
Year : 1st year Electrical Engineering
Time allowed: 45 minutes
MODEL
A
Please

EE 131: Modern Physics
Sheet #2 assume the givens are attached to Frame O and the required to O so its easy apply the laws
The Lorentz Transformation
for observer 1: t = 2 ms
x =100km
for observer 2: t=?
x = 0.
1. An observer detects two explosions, one t