i seem to be stuck on a problem which involves fluids of 2 different densities, and an object floating in/on them. A block of wood is floating in a jar of water. oil is then poured onto the water. how can i calculate the mass of "the fluid displaced" when it is composed of 2 different fluids...
Please see the attached image to see what I'm talking about.
I understand how the forces (in terms of the pressures and areas) are equated, but then it says 'for small delta x' and from there on I'm confused.
It's something to do with differentiation, but I don't get it.
Can someone...
Is this correct?
A 6-kg piece of metal displaces 1 liter of water when submerged. What is its density?
Density = mass/volume 1 liter of water = 1000 cm3 = 1 kg
Ans: 6 kg / 1000 cm3 = .006 cm3
How would this one work out?
When a 2.0-kg object is...
One would assume that when the area of an orifice is doubled then twice as much water will flow through this orifice. Hence we assume a proportional relationship between the two. However use of a garden hose leads us to believe that increasing the area of the orifice decreases the velocity of...
Block A hangs by a cord from spring balance D and is submerged in a liquid C contained in beaker B. The mass of the beaker is 1.00 kg and the mass of liquid is 1.80 kg. Balance D reads 3.50 kg and balance Balance E( supporting beaker B) reads 7.50 kg. The volume of block A is 3.80 * 10^-3...
(Thanks to the guy who answered my original thread)
For a physics project I'm investigating the effects on the flow rate of fluids. I'm going to find a relationship between orifice diameter and flow rate (keeping things simple I'll assume it's a circular orifice for a cylindrical can). For...
Hi,
I really need help with the following two questions.
1.) A Styrofoam slab has a thickness of 3.8 cm and a density of 303
kg/m^3. When a 73.2 kg swimmer is resting on it, the slab floats
in fresh water with its top at the same level as the water surface.
What is the...
Hi,
I would really appreciate help in solving the following problem.
A helium-filled balloon is tied to a 2.00 m long, 0.050 kg uniform
string. The balloon is spherical with a radius of 0.400 m. When
released, the balloon lifts a length h of string and then remains in...