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A Thermometer is filled with unknown liquid. It has a square bulb and a stem with cylinder shape. It is found that the volume of the liquid increased by 40% when the temperature changes by 15 Celsius.

Calculate the coefficient of expansion of volume of the liquid and the radius of the stem if the liquid rises by 5 cm?

Do I need to use the formula: ΔV = VβΔT

Don't know how to tackle this question any help would be appreciated.

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# Calculating the coefficent of volume expansion of liquid?

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