A hydrometer is a device used to measure the density of a liquid. It is a cylind

Question

A hydrometer is a device used to measure the density of a liquid. It is a cylindrical tube weighted at one end, so that it floats with the heavier end downward. The tube is contained inside a large "medicine dropper," into which the liquid is drawn using the squeeze bulb (see the drawing). For use with your car, marks are put on the tube so that the level at which it floats indicates whether the liquid is battery acid (more dense) or antifreeze (less dense). The hydrometer has a weight of W = 7.71

Explanation / Answer

At floating depth forces on the tube are balanced, so ..
upthrust force (U) = weight 0.0771 N
U = weight of liquid displaced ..
U = displaced vol.m

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.