Physics
posted by MJ .
A hydrometer is an instrument for measuring the specific
gravity of a liquid. For example, producers of maple syrup use the hydrometer to find how much
sugar is in the collected sap. Markings along a stem are calibrated to indicate the specific gravity
for the level at which the hydrometer floats in a liquid. The weighted base ensures that the
hydrometer floats vertically. Suppose the hydrometer has a cylindrical stem of crosssectional
area 0.400 cm
2.
The total volume of the bulb and stem is 8.8 cm
3
and the mass of the hydrometer
is 4.8 gm.
(a) How far from the top of the cylinder should a mark be placed to indicate a specific gravity of
1.00?
(b) When the hydrometer is placed in some oil, it floats with 7.25 cm of stem above the surface.
What is the specific gravity of the oil?
(c) What is the lowest specific gravity that can be measured with this hydrometer?
Respond to this Question
Similar Questions

MAth
Can someone check over these math problems that I did? 
math..HELP!
Can someone check over these math problems that I did? 
math
Your making maple syrup. You mix 5 cent and 25 cent maple syrup. You make 128 ounces that cost 18 cents an ounce. You much of each maple syrup ws required? 
Physics
A hydrometer consists of a spherical bulb and a cylindrical stem with a crosssectional area of 0.400 cm^2. The total volume of the bulb and stem is 13.2 cm^3. When immersed in water, the hydrometer floats with 8.00 cm of stem above … 
physics
specific gravity: Suppose the hydrometer has a cylindrical stem of crosssectional area 0.400 cm2. The total volume of the bulb and stem is 8.8 cm3 and the mass of the hydrometer is 4.8 gm. (c) What is the lowest specific gravity that … 
Physical Science
Suppose you made your own hydrometer. The lower part of a hydrometer has a volume of 7.0 g/cm3 and the upper part is 5.0 cm long and has a crosssectional area of 0.62 cm2. What length of the upper part of the hydrometer will be submerged? 
classical mechanics
A hydrometer is a device that measures the density of a liquid. The one shown in the figure has a cylindrical bulb of radius attached to a cylindrical stem of radius and length . When placed in a liquid, the device floats as shown … 
Physics Classical Mechanics
A hydrometer is a device that measures the density of a liquid. The one shown in the figure has a cylindrical bulb of radius R attached to a cylindrical stem of radius r and length l. When placed in a liquid, the device floats as shown … 
Chemistry
I need help on my chem lab... I need to give you background info so you know how to help me.. Data Sheet: Specific gravity of distilled water Temp of distilled water = 20 C Specific gravity: 1.0000 or 1.000 (according to hydrometer … 
Physics
A hydrometer has a weighed bulb of volume 30cm3 and a uniform cross sectional area of 1cm3. When floating in water 3cm of the stem is immersed. What is the length of the stem when immersed in water when the hydrometer floats in the …