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An 7.5 × binocular has 3.7-cm-focal-length eyepieces. What is the focal length of the objective lenses? Express your answer to two significant figures and include the appropriate units.
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Which fact supports the conclusion that there will be fewer farm managers in the future? a) a farmer manager’s duties vary by the type of farm. b) farm technology is replacing some administrative jobs c) farm managers often need experience but not education. d) administrative duties include budgeting and training staff.
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Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value
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An 7.5 × binocular has 3.7-cm-focal-length eyepieces. What is the focal length of the objective lens...
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