Assignment 7

# Assignment 7 - University of Florida Department of Physics...

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University of Florida Department of Physics PHY3101, Fall 2009 Introduction to Modern Physics Homework 7 - Due Fri, Feb 19 2009 Student Name: ( please print large and legibly. No UFID is necessary. ) Total: / 25 points.

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Physics 3101, HW#7, Fri, Feb 19 2009 Name: Problem 1: General Relativity (4 points) (a) Compute the deﬂection angle α for light from a distant star that would, according to general relativity, be measured by an observer on the Moon as the light grazes the edge of the Earth. ( 1 points ) (b) Compute the deﬂection angle α measured by an observer on Earth as the light grazes the edge of the Moon. ( 1 points ) (c) If you wanted to make a black hole from the Earth, to what radius must you compress its mass? ( 2 points ) 1
Name: Problem 2: General Relativity (4 points) A clock is placed on a satellite that orbits the Earth with a period of 90 min- utes at an altitude of 300 km. By what time interval will this clock diﬀer from an identical clock in Earth after 1 year (account for both general and special relativistic eﬀects)? 2

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## This note was uploaded on 03/30/2010 for the course PHY 3101 taught by Professor Staff during the Spring '08 term at University of Florida.

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Assignment 7 - University of Florida Department of Physics...

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