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Question: A deep-space probe moves away from Earth with a speed of 0.48 c. An antenna on the probe requires 2.4 s (probe time) to rotate through 0.8 rev.
How much time is required for 0.8 rev according to an observer on Earth?
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An artillery shell is fired at an angle of 48.1? above the horizontal ground with an initial speed of 1920 m/s. The acceleration of gravity is 9.8 m/s2. Find the total time of flight of the shell, neglecting air resistan ...
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