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A lady holds a large concave mirror of focal length 1.8m from her face. State two characteristics of her image in the mirror.β
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What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th
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In which type of system is power held solely by the central government and not shared with regional governments? group of answer choices federal unitary confederate oligarchic
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In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.
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A lady holds a large concave mirror of focal length 1.8m from her face. State two characteristics of...
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