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Inclined manometer, such as the one shown below, are often used to measure low pressure differences. (This device is so often used to measure the "draft" of a furnace that its common name is a draft tube.) (a) If the scale is set to read zero length at PA=PB and the manometer fluid is colored water, what will the reading be at PAPB=0.1lbf/in2 ? (b) What would the reading of an ordinary manometer with vertical legs be for this pressure difference