Squids and octopuses propel themselves by expelling water. they do this by keeping water in a cavity and then suddenly contracting the cavity to force out the water through an opening. a 6.50-kg squid (including the water in the cavity) at rest suddenly sees a dangerous predator. (a) if the squid has 1.75 kg of water in its cavity, at what speed must it expel this water suddenly to achieve a speed of 2.50 m/s to escape the predator? ignore any drag effects of the surrounding water. (b) how much kinetic energy does the squid create by this maneuver?
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Astate of matter all that has define volume and can flow is a(n)
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Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.
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Two waves maximally constructively interfere at a point in space. among the options below, select the possible value of their phase difference at that point in space.a. zerob. πc. π/2d. not determinable by the information provided
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Squids and octopuses propel themselves by expelling water. they do this by keeping water in a cavity...
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