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At 2.5 seconds, the helicopter has a kinetic energy of 20 j. what is its mechanical energy at that time?
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Unpolarized light of intensity so passes through two sheets of polarizing material whose transmission axes make an angle of 60∘ with each other as shown in the figure. what is the intensity of the transmitted beam, st?
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What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.
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At 2.5 seconds, the helicopter has a kinetic energy of 20 j. what is its mechanical energy at that t...
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