Suppose an experiment measures a mass, heats it over a flame without changing its state, measures it again, and finds the mass to be different. which statement best describes the kind of change that could have taken place a. physical change because the substance became more denseb. chemical change because mass was lost, most likely as a gasc. chemical change because the chemical property of mass changedd. physical change because the mass melted going from a solid to a liquid
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For this car, predict the shape of a graph that shows distance (x) versus time (t). note that time is the independent variable and will be on the bottom axis. need asap
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In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?
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What was the first instrument to ever record an earthquake?
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Suppose an experiment measures a mass, heats it over a flame without changing its state, measures it...
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