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A swimming pool is 1.4 m deep and 12 m long. Is it possible for you to dive to the very bottom of the pool so people standing on the deck at the end of the pool do not see you?
Assume you dive to the very bottom of the pool so people standing on the deck at the end of the pool can see you. Find the minimum height of the person's eyes at the far side of the pool, so you would be observable by this person. Take an angle 48.5? for a ray that is incident at the water-air interface (nwater = 1.33).
Therefore, is it possible for you to dive to the very bottom of the pool so people standing on the deck at the end of the pool do not see you?
A rotating wheel needs 8.00 s to rotate 29.0 revolutions. Its angular velocity at the end of the 8.00 s interval is 100.0 rad/s. What is the constant angular acceleration of the wheel?
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Your professor enters the dogsled race during winter break. To getstarted, he pulls his sled, a mass 80 kg with a force of 180N at 20degrees to the horizontal. Find a) the work he does b) the finalspeed of the sled after it moves 30s.
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A private airplane left the airport at 1pm with speed 150 mph and its direction was 30 degrees east of north. At 3pm, the airplane reached point A and then changed its speed to 100 mph heading west. At 7pm, it reached point B.
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