You (m=80.0 kg) are in a rowboat (m=40.0 kg) of volume 0.300 m3. To answer the following, use the density of seawater as 10,050 N/m3.
Before you step into the rowboat, how much water does the rowboat displace with nothing in it?
What is the maximum load (excluding you and the boat) that you can take on before the rowboat sinks?
If the rowboat was placed in a pool of mercury of weight density Dw = 1.36 X 105 N/m3, how much total weight (in lbs) could you put in the rowboat (including yourself) until it sank?

Solution Preview

see the attached doc file!
<br>please, don't forget to rate my solution :)

SOLUTION.

a) Lets consider first case, when there is nothing in the boat. Then the sum of all forcea acting on the boat is equal to zero, and there are only 2 forces - the gravitational attraction force, Fgrav = mboat * g (where g is the acceleration fo free fall, g = 10 m/sec2 ) and the Archimed's force( I am sorry if I misspelled the name, ...

Solution Summary

How much water the rowboat displaces with nothing in it is determined. The weight density of mercury is found.

I'm having trouble completing these practice problems.
1. A barometer is made from a closed tube inserted (closed end up) into a pool of mercury (density = 13.6 g/cm^3). The pool of mercury is open to the air. How high does the mercury rise in the closed tube?
2. A hydraulic lift is used to lift a 1,300 kg car has a di

Problem:
A piece of solid metal weighing 322 grams is placed into a graduated cylinder, which is then filled with liquid mercury. The metal does not float. After weighing the cylinder and its contents the solid metal is removed and the cylinder is then filled with more liquid mercury to the same level as before. Now the cyli

(1) The density of mercury is 1.36 x 10^4 kg/m^3.
What is the mass of of a 4.00 10^-4 -m^3 sample of mercury?
(2) A force of 250N is applied to a hydraulic jack piston that is 0.01m in diameter. If the piston which supports the load has a diameter of 0.10m, approx. how much mass can be lifted by the force? Ignore any diffe

1a) A venturi meter has 0.02556m^3 of flow per second through its 45mm dia throat.If the pipe is 58mm in diameter,what will the differential reading of mercury across it be? b)A metal sphere 60mm in dia is submerged in oil with a relative density of 0.9.Need to find the density of the sphere.There is a downward force of 8.31N wh

Please find the attached problem for the graph.
The u-tube shown has a cross-section of 1 cm^2. It contains mercury to the shown levels. The pressure above the the mercury is 750 torr. The left side is sealed off. The right side is is pumped such that the pressure is approximately zero.
How are we supposed to calculate ho

See attached file for full problem description.
A U-tube mercury manometer is connected to a closed pressurized tank as illustrated in the Figure below. If the air pressure is 2 psia, determine the differential reading (height) h. The specific weight of the air is negligible. Assume fluids are at room temperature.

A block of iron is suspended from one end of an equal-arm balance by a thin wire. To balance the scales, 2.35 kg are needed on the scale pan at the other end.
A) What is the volume of the block?
B) Next, a beaker of water is placed so that the iron block, suspended as in part (A), is submerged in the beaker but not touch

Two people, one of mass 75.6 kg and the other of mass 60.2 kg, sit in a rowboat of mass 82.4 kg. With the boat initially at rest, the two people, who have been sitting at opposite ends of the boat 2.02 m apart from each other, now exchange seats. How far will the boat move?

Water rises to a height of 5 cm in a certain glass capillary tube. In the same tube the level of mercury surface is depressed by 1.54cm. Compare the surface tensions of water and mercury. Specific weight of Mercury is 13.6 x10^3 Kg/m^3 and that of water is 10^3 Kg/m^3. Angle of contact of glass with mercury and water is 130 degr