{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

quiz1

# quiz1 - PHYSICS 2D PROF HIRSCH QUIZ 1 SPRING QUARTER 2008...

This preview shows pages 1–2. Sign up to view the full content.

PHYSICS 2D QUIZ 1 SPRING QUARTER 2008 PROF. HIRSCH APRIL 11, 2008 Formulas : Time dilation; Length contraction: " t = # " t ' \$ # % ; L = L p / # ; c = 3 & 10 8 m / s Lorentz transformation: x ' = " ( x # vt ) x = " ( x ' + vt ') y'= y , z'= z " = 1 1 # v 2 / c 2 y = y', z = z' t ' = " ( t # vx / c 2 ) t = " ( t ' + vx '/ c 2 ) Spacetime interval: ( " s ) 2 = ( c " t ) 2 -[ " x 2 + " y 2 + " z 2 ] Relativistic Doppler shift : f obs = 1 + v / c 1 ! v / c f source (approaching) Momentum: r p = " m r u ; " = 1 1 # u 2 / c 2 ; E = p 2 c 2 + m 2 c 4 Kinetic energy: E k = ( " # 1) mc 2 Total energy : E = " mc 2 Rest energy : E 0 = mc 2 Electron : m e = 0.511 MeV / c 2 Proton : m p = 938.26 MeV / c 2 Neutron : m n = 939.55 MeV / c 2 Atomic mass unit : 1 u = 931.5 MeV / c 2 ; electron volt : 1eV =1.6 " 10 -19 J Justify all your answers to all problems Problem 1 (10 points) A C B Spaceships A and B pass each other traveling in opposite directions, both at speed 0.5c with respect to an observer C on the ground. The passenger in spaceship A measures the length of his own ship to be 100m, and the length of spaceship B to be 30m. (a) What is the speed of B relative to A? (b) What is the length of spaceship B measured by the passenger in B?

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 2

quiz1 - PHYSICS 2D PROF HIRSCH QUIZ 1 SPRING QUARTER 2008...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online