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An elementary particle called a pi meson (or pion for short) has an average lifetime of 2.6×10?8s when at rest.
A. If a pion moves with a speed of 0.89c relative to Earth, find the average lifetime of the pion as measured by an observer on Earth.
B. Find the average distance traveled by the pion as measured by the same observer.
C. Find how far would the pion have traveled relative to Earth if relativistic time dilation did not occur.
You are walking around your neighborhood and you see a child on top of a roof of a building kick a soccer ball, How tall is the building that the child is standing on
Falls resulting in hip fractures are a major cause of injury and even death to the elderly. Typically, hip's speed at impact is about 2. If this can be reduced to 1.30 or less, hip will usually not fracture. One way to do this is by wearing elasti..
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Calculate the firm's earnings per share (EPS). Explain how large a per-share cash dividend did the firm pay on common stock during 2011?
A cup of coffee is on a table in an airplane flying at a constant altitude and a constant velocity. The coefficient of static friction between the cup and the table is 0.170 .
A box is placed on a conveyor belt that moves with a constant speed of 1.05. The coefficient of kinetic friction between box and belt is 0.80. How much time does it take for the box to stop sliding relative to belt.
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