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The Graph Above Shows the Relativity of Time, Space, and Mass

Question 11

Multiple Choice

The graph above shows the relativity of time, space, and mass [you will need to figure out which graph goes with which effect]. How fast would Velma have to fly across Chicago in order to observe the city's width to be reduced 10% below the width measured on the ground?


A) about 99% of lightspeed
B) about 90% of lightspeed
C) about 45% of lightspeed
D) about 1.01c
E) Nonsense-- if Velma is flying across Chicago, she will observe the city's width to be larger than normal.

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